Battery structured to reduce magnetic field, and wearable device comprising same

Abstract

A wearable device is disclosed. The wearable device may comprise: a speaker including a coil; a coin cell battery disposed on the speaker; and a conductive tab on a first surface of a case of the coin cell battery, the conductive tab being electrically connected to a portion of a first electrode positioned on the first surface of the case. The coin cell battery can include: the case that includes the first surface facing the speaker and a second surface opposite to the first surface; and a jelly roll. The conductive tab on the first surface of the case can extend in a second rotational direction opposite to the first rotational direction of the jelly roll so as not to overlap the coil of the speaker.

Description

Battery including a structure for reducing magnetic field and wearable device including the same

[0001] The following descriptions relate to a battery including a structure for reducing a magnetic field and a wearable device including the same.

[0002] Wearable electronic devices may include at least one component related to sound effects. For example, electronic devices including speakers and microphones may be worn close to the user's ears, such as in-ear earphones (or earsets) or hearing aids.

[0003] As electronic devices become smaller, the electronic components housed within them also become smaller. As electronic devices become smaller and the space within which they are housed shrinks, the components used for wireless communication become increasingly close to other components within the device, causing them to interact with each other. For example, a speaker and a battery may be placed very close together, and electromagnetic waves generated by the battery can cause unintended noise in the speaker.

[0004] A wearable device is disclosed. The wearable device may include a speaker including a coil. The wearable device may include a coin cell battery disposed above the speaker. The coin cell battery may include a case having a first side facing the speaker and a second side opposite the first side. The coin cell battery may include a jelly roll within the case, the jelly roll including a first electrode sheet and a second electrode sheet, the jelly roll being spirally wound in a first rotational direction. The jelly roll may include a first portion including a portion of the first electrode sheet and the second electrode sheet. The jelly roll may include a second portion extending from the first portion of the jelly roll in the first rotational direction. The second portion of the jelly roll may include another portion of the first electrode sheet extending from the portion of the first electrode sheet. The coin cell battery may include a first electrode electrically connected to the first electrode sheet, the first electrode including a portion positioned on the first side of the case. The coin cell battery may include a second electrode electrically connected to the second electrode sheet and including a portion positioned on the second surface of the case. The wearable device may include a conductive tab on the first surface of the case, the conductive tab electrically connected to the portion of the first electrode positioned on the first surface of the case. The conductive tab on the first surface of the case may extend in a second rotational direction opposite to the first rotational direction so as not to overlap the coil of the speaker.

[0005] A wearable device is disclosed. The wearable device may include a speaker including a coil. The wearable device may include a coin cell battery disposed above the speaker. The coin cell battery may include a case having a first side facing the speaker and a second side opposite the first side. The coin cell battery may include a jelly roll within the case, the jelly roll including a first electrode sheet and a second electrode sheet, the jelly roll being spirally wound in a first rotational direction. The jelly roll may include a first portion including a portion of the first electrode sheet and the second electrode sheet. The jelly roll may include a second portion extending from the first portion of the jelly roll in the first rotational direction. The second portion of the jelly roll may include another portion of the first electrode sheet extending from the portion of the first electrode sheet. The coin cell battery may include a first electrode electrically connected to the first electrode sheet, the first electrode including a portion positioned on the first side of the case. The coin cell battery may include a second electrode electrically connected to the second electrode sheet and including a portion positioned on the second surface of the case. The wearable device may include a conductive tab on the first surface of the case, the conductive tab electrically connected to the portion of the first electrode positioned on the first surface of the case. The conductive tab on the first surface of the case may extend in a second rotational direction opposite to the first rotational direction. The other portion of the first electrode sheet extending from the portion of the first electrode sheet may extend in the first rotational direction so as not to overlap the coil of the speaker.

[0006] Figure 1 illustrates an electronic device according to one embodiment.

[0007] FIG. 2 is a perspective view illustrating some components of an electronic device according to one embodiment.

[0008] FIG. 3A is an exploded perspective view of an electronic device according to one embodiment.

[0009] FIG. 3b is a drawing illustrating a positional relationship between a speaker and a battery of an electronic device according to one embodiment.

[0010] FIG. 4 is a cross-sectional view of a speaker of an electronic device according to one embodiment, viewed from the side.

[0011] FIG. 5A is a cross-sectional view of a battery of an electronic device according to one embodiment, viewed from the side.

[0012] FIG. 5b is a plan view from above of a battery of an electronic device according to one embodiment.

[0013] FIG. 5c is a bottom view of a battery of an electronic device according to one embodiment.

[0014] FIG. 5d is a perspective view of a battery with a conductive tab attached according to one embodiment.

[0015] FIG. 5e is a plan view from above of a battery with a conductive tab attached according to one embodiment.

[0016] FIG. 5f is a perspective view of a battery with a conductive tab attached according to one embodiment.

[0017] FIG. 5g is a bottom view of a battery with a conductive tab attached according to one embodiment.

[0018] FIG. 5h is an exploded view of a conductive tab and a non-conductive cover attached to a battery of an electronic device according to one embodiment.

[0019] FIG. 5i is an exploded view of a conductive tab attached to a battery of an electronic device according to one embodiment.

[0020] FIG. 6A is a drawing illustrating the structure of a jelly roll inside a battery of an electronic device according to one embodiment.

[0021] FIG. 6b is a drawing showing the positional relationship of jelly rolls and electrode tabs according to one embodiment.

[0022] FIG. 6c is a drawing showing the positional relationship of a jelly roll, an electrode, and a conductive tab according to one embodiment.

[0023] FIG. 6d is a drawing showing the positional relationship of a battery and a speaker according to one embodiment.

[0024] FIGS. 7A to 7C are drawings showing different positional relationships of a conductive tab and a jelly roll according to one embodiment.

[0025] FIGS. 8A to 8E are drawings showing different positional relationships of a conductive tab and a jelly roll according to one embodiment.

[0026] FIGS. 9A and 9B are diagrams showing different positional relationships of batteries and speakers of electronic devices worn in different ear canals.

[0027] FIG. 10A is a bottom view of a battery with a conductive tab attached according to one embodiment.

[0028] FIG. 10b is an exploded view of a conductive tab and a non-conductive cover attached to a battery of an electronic device according to one embodiment.

[0029] FIG. 10c is an exploded view of a conductive tab attached to a battery of an electronic device according to one embodiment.

[0030] FIG. 10d is a drawing showing the positional relationship of a jelly roll, an electrode, and a conductive tab according to one embodiment.

[0031] FIG. 11 is a block diagram of an electronic device within a network environment according to various embodiments.

[0032] Figure 1 illustrates an electronic device according to one embodiment.

[0033] Referring to FIG. 1, in one embodiment, the electronic device (101) may be a wearable device worn on a part of the user's body (e.g., an ear or head). For example, the electronic device (101) may be any one of an in-ear earset, an in-ear headset, or a hearing aid. However, the present invention is not limited thereto. For example, the electronic device (101) may be an open-type earset mounted on the auricle, as well as a canal-type in-ear earset mounted on the external auditory canal connecting the auricle to the eardrum. For example, the electronic device (101) may be a ring-type device worn on the user's finger, an earring-type device worn on the user's ear, and / or an HMD (head mounted display) device worn on the user's face. In addition, the electronic device (101) may be one of various types of electronic devices that include a speaker inside.

[0034] For example, the electronic device (101) may be wirelessly connected to an external electronic device (e.g., the electronic device (1101) of FIG. 11) (e.g., a smart phone). In this case, the electronic device (101) may function as an audio output device that outputs an audio signal generated by the external electronic device to the outside. For example, the electronic device (101) may be a TWS (true wireless stereo) device that transmits an audio signal to a user. In addition, the electronic device (101) may function as an audio input device that acquires an audio signal generated externally and transmits the acquired audio signal to the external electronic device.

[0035] Referring to FIG. 1, the electronic device (101) may include a housing (110).

[0036] In one embodiment, the housing (110) may define the appearance of the electronic device (101). For example, the housing (110) may have a shape and size suitable for wearing on a user's body. For example, the housing (110) may have a shape and size suitable for wearing on a user's ear.

[0037] In one embodiment, the housing (110) may include a first housing (111) and a second housing (112). For example, the first housing (111) may be inserted at least partially into the external auditory meatus of the user when the electronic device (101) is worn on the user's ear. For example, the first housing (110) may include a sound port (115) (or nozzle) (or bore) (or passage) through which an audio signal to be transmitted to the user is radiated externally. For example, a mesh structure may be arranged in the sound port (115) to prevent foreign substances from entering the housing (110). For example, the second housing (112) may extend from the first housing (111) and be positioned outside the external auditory meatus. Since the housing (110) has a small size, the components of the electronic device (101) accommodated within the housing (110) can have a small size so that they can be placed within a limited space.

[0038] FIG. 2 is a perspective view illustrating some components of an electronic device according to one embodiment.

[0039] Referring to FIG. 2, the electronic device (101) may include (or accommodate) a speaker (210), a battery (220), a printed circuit board (230), and a battery bracket (240) inside the housing (110) (or, an internal space formed by the first housing (111) and the second housing (112). In one embodiment, the electronic device (101) may further include other components in addition to the components illustrated in FIG. 2. For example, the electronic device (101) may further include a processor, a wireless communication circuit, or a microphone in the internal space formed by the first housing (111) and the second housing (112). In one embodiment, the electronic device (101) may omit some of the components illustrated in FIG. 2 (e.g., the battery bracket (240)).

[0040] In one embodiment, the speaker (210) may receive an electrical signal through a circuit (e.g., a printed circuit board (230)) within the electronic device (101) and convert it into a physical vibration. In one embodiment, the speaker (210) may output (or radiate) an audio signal based on the physical vibration through the sound port (115).

[0041] In one embodiment, the speaker (210) may include a diaphragm configured to output an audio signal by vibrating based on an electrical signal, a voice coil for causing the diaphragm to vibrate, and a permanent magnet configured to form a magnetic field.

[0042] In one embodiment, the speaker (210) may be positioned within the housing (110) adjacent to the sound port (115). In one embodiment, the speaker (210) may be positioned within the housing (110) so as to face the battery bracket (240) on which the battery (220) is mounted. In one embodiment, the speaker (210) may be positioned within the housing (110) so as to face the battery (220).

[0043] In one embodiment, the battery (220) may provide power to components included in the electronic device (101). In one embodiment, the battery (220) may be charged via wireless power obtained via a printed circuit board (230).

[0044] In one embodiment, the battery (220) may have an electrode assembly (250) attached thereto. For example, the electrode assembly (250) may be electrically connected to an electrode (e.g., a negative electrode) positioned on a first side of the battery (220) (e.g., a bottom side of the battery (220)). For example, the electrode assembly (250) may extend from a first side of the battery (220) (e.g., a bottom side of the battery (220)) to a second side of the battery (220) (e.g., a top side of the battery (220)) along a third side of the battery (220) (e.g., a side surface of the battery (220)). For example, the electrode assembly (250) may include a conductive tab and a non-conductive cover covering at least a portion of the conductive tab.

[0045] Because the space within the housing (110) is limited, the battery (220) may be implemented as a cell having a small size. For example, the battery (220) may be referred to as a coin cell (or coin cell battery). In one embodiment, the coin cell is a battery having a button shape and a small size, and may also be referred to as a button cell. Because the coin cell is small and lightweight, it may be suitable for use in small electronic devices such as TWS devices. For example, the battery (220) may include a rechargeable lithium coin cell. The battery (220) may also be implemented as a cell of a different shape (e.g., a pouch-type cell, a cylindrical cell) other than a coin cell, and in the embodiments of the present disclosure, the battery (220) is not limited to a coin cell.

[0046] In one embodiment, the battery (220) may be configured to include a negative electrode sheet (or a negative electrode plate), a positive electrode sheet (or a positive electrode plate), a separator, and an electrolyte. In one embodiment, the negative electrode sheet, the positive electrode sheet, and the separator included in the battery (220) may form a winding structure (or jelly roll). In one embodiment, in order to transfer electrical energy from the battery (220) to a load (e.g., a speaker (210)), a current may be formed that flows from the positive electrode sheet of the battery (220) through the load and to the negative electrode sheet of the battery (220). The flow of the current may induce a magnetic field. When a current flows along a conductor, a circular magnetic field is formed around the conductor according to Ampere's law.

[0047] In one embodiment, the battery (220) may be mounted on a battery bracket (240). In one embodiment, the battery (220) may be positioned within the housing (110) such that a first side (or lower side) faces the speaker (210) and a second side (or upper side) opposite to the first side faces the printed circuit board (230).

[0048] Since the housing (110) is small in size, the speaker (210) may be positioned adjacent to the battery (220). In addition, in order for the housing (110) to be at least partially inserted into the user's external auditory canal, the shape of at least a portion of the housing (110) (e.g., the first housing (111)) must have a shape suitable for the external auditory canal. Accordingly, the speaker (210) and the battery (220) may be positioned inside the housing (110) in a non-aligned state. Since the battery (220) and the speaker (210) are positioned adjacent to each other, the magnetic field generated by the battery (220) may affect the speaker (210). Hereinafter, with reference to FIGS. 5A to 8E, a structure for reducing the influence of the magnetic field of the battery (220) on the speaker (210) will be described.

[0049] In one embodiment, at least one electronic component (e.g., a processor (1120), a communication module (1190), and / or a sensor module (1176) of FIG. 11) may be disposed on a printed circuit board (230). In one embodiment, the printed circuit board (230) may transmit power obtained through a battery (220) to at least one electronic component (e.g., a speaker (210), a processor (1120), a communication module (1190), and / or a sensor module (1176) of FIG. 11) of the electronic device (101).

[0050] In one embodiment, the printed circuit board (230) may include a printed circuit board (PCB) or a flexible printed circuit board (FPCB, flexible PCB), but is not limited thereto. The printed circuit board (230) may include a printed board assembly (PBA) or a rigid-flexible PCB (RFPCB).

[0051] In one embodiment, the printed circuit board (230) may be in electrical contact with electrodes of the battery (220). For example, the printed circuit board (230) may be in electrical contact with an electrode (e.g., a positive electrode) located on a second side of the battery (220) (e.g., a top side of the battery (220)). For example, the printed circuit board (230) may be in electrical contact with an electrode assembly (250) located on a second side of the battery (220) (e.g., a top side of the battery (220)), thereby making electrical contact with an electrode (e.g., a negative electrode) located on a first side of the battery (220) (e.g., a bottom side of the battery (220)).

[0052] FIG. 3A is an exploded perspective view of an electronic device according to one embodiment. FIG. 3B is a drawing illustrating the positional relationship between a speaker and a battery of an electronic device according to one embodiment.

[0053] Referring to FIG. 3a, the speaker (210) may include a first side (311) facing the sound port (115) and a second side (312) opposite the first side (311). Referring to FIG. 3b, in one embodiment, the speaker (210) may be formed in a generally circular shape. For example, the speaker (210) may be formed in a circular shape with respect to the central axis (341).

[0054] In one embodiment, the speaker (210) can output sound radiation through a first face (311) facing the sound port (115). In one embodiment, a microphone (330) can be positioned on the first face (311) of the speaker (210).

[0055] Referring to FIG. 3A, the battery (220) may include a first side (321) facing the speaker (210) and a second side (322) opposite the first side (321). The battery (220) may include a side surface (323) between the first side (321) and the second side (322). Referring to FIG. 3B, in one embodiment, the battery (220) may be formed in an approximately circular shape. For example, the battery (220) may be formed in a circular shape with respect to the central axis (345).

[0056] Referring to FIG. 3A, in one embodiment, the battery (220) may be positioned such that the first side (321) of the battery (220) faces the second side (312) of the speaker (210). In one embodiment, the battery (220) may be stacked on the second side (312) of the speaker (210). In one embodiment, the battery (220) may be positioned at a certain distance from the sound port (115).

[0057] Referring to FIG. 3B, in one embodiment, the central axis (341) of the speaker (210) and the central axis (345) of the battery (220) may be spaced apart from each other. For example, the speaker (210) and the battery (220) may be misaligned. For example, the speaker (210) and the battery (220) may be radially misaligned. For example, when the central axis (341) of the speaker (210) and the central axis (345) of the battery (220) are parallel to each other (or are not angularly misaligned), the speaker (210) and the battery (220) may be radially misaligned.

[0058] Referring to FIG. 3A, in one embodiment, the electrode assembly (250) may be electrically connected to an electrode (e.g., a negative electrode) of a first side (321) of the battery (220). In one embodiment, the electrode assembly (250) may extend along the first side (321) of the battery (220), the side surface (323) of the battery (220), and the second side (322) of the battery (220).

[0059] FIG. 4 is a cross-sectional view of a speaker of an electronic device according to one embodiment, viewed from the side.

[0060] Referring to FIG. 4, in one embodiment, the speaker (210) may include a first frame (410) facing the first side (311) and a second frame (420) facing the second side (312).

[0061] In one embodiment, various components necessary for outputting sound may be arranged in the internal space formed by the combination of the first frame (410) and the second frame (420). In one embodiment, the speaker (210) may include a voice coil (430) and a magnet (440) in the internal space formed by the combination of the first frame (410) and the second frame (420). In one embodiment, the speaker (210) may further include other components (e.g., a diaphragm and / or a plate) in the internal space formed by the combination of the first frame (410) and the second frame (420).

[0062] In one embodiment, the voice coil (430) may include a plurality of voice coils (e.g., a first voice coil (430a) and a second voice coil (430b)) to ensure even sound quality.

[0063] In one embodiment, the first voice coil (430a) and the second voice coil (430b) may be arranged on one side of the second frame (420). In one embodiment, the first voice coil (430a) may be arranged in an area adjacent to the first face (311) of the speaker (210). In one embodiment, the second voice coil (430b) may be arranged in an area adjacent to the second face (312) of the speaker (210).

[0064] In one embodiment, the first voice coil (430a) can generate sound in the mid-high frequency range. In one embodiment, the first voice coil (430a) can include a tweeter coil for generating sound in the mid-high frequency range. Sound in the mid-high frequency range can be referred to as sound in the first frequency range.

[0065] In one embodiment, the second voice coil (430b) can generate sound in the low-frequency range. In one embodiment, the second voice coil (430b) can include a woofer coil for generating sound in the low-frequency range. Sound in the low-frequency range can be referred to as second-frequency sound.

[0066] In one embodiment, the magnet (440) may be arranged to surround at least a portion of the first voice coil (430a) and the second voice coil (430b).

[0067] In one embodiment, the first face (311) included in the first frame (410) may include an opening for radiating sound to the outside of the electronic device (101). In one embodiment, the first face (311) of the first frame (410) may include an opening for radiating sound through the sound port (115).

[0068] FIG. 5A is a cross-sectional view of a battery of an electronic device according to an embodiment, viewed from the side. FIG. 5B is a plan view of a battery of an electronic device according to an embodiment, viewed from above. FIG. 5C is a bottom view of a battery of an electronic device according to an embodiment, viewed from below. FIG. 5D is a perspective view of a battery having a conductive tab attached thereto according to an embodiment. FIG. 5E is a top view of a battery having a conductive tab attached thereto according to an embodiment. FIG. 5F is a perspective view of a battery having a conductive tab attached thereto according to an embodiment. FIG. 5G is a bottom view of a battery having a conductive tab attached thereto according to an embodiment, viewed from below. FIG. 5H is an exploded view of a conductive tab and a non-conductive cover attached to a battery of an electronic device according to an embodiment. FIG. 5I is an exploded view of a conductive tab attached to a battery of an electronic device according to an embodiment.

[0069] Referring to FIG. 5A, in one embodiment, the battery (220) may include a jelly roll (500), a case (510), a negative tab (522), and a positive tab (521).

[0070] In one embodiment, the jelly roll (500) may be formed by rolling (or winding) (or rotating) a positive electrode sheet (e.g., 610 in FIG. 6A) (or a positive electrode plate), a negative electrode sheet (e.g., 630 in FIG. 6A) (or a negative electrode plate), and separators (e.g., 621 and 625 in FIG. 6A) in a specified rotational direction (e.g., clockwise or counterclockwise). For example, the jelly roll (500) may be formed by rolling (or winding) the separators (621, 625) in a spiral shape while being laminated between the positive electrode sheet (610) and the negative electrode sheet (630). For example, a jelly roll (500) may be formed by stacking and rolling (or winding) one positive electrode sheet (610), one negative electrode sheet (630), and two separators (621, 625). However, the present invention is not limited thereto. In addition, the jelly roll (500) may include two or more positive electrode sheets, two or more negative electrode sheets, and three or more separators.

[0071] In one embodiment, the separators (621, 625) can prevent the positive electrode sheet (610) and the negative electrode sheet (630) from electrically contacting each other.

[0072] In one embodiment, the case (510) can accommodate a jelly roll (500) therein. In one embodiment, the case (510) may be referred to as a housing, can, or enclosure of the battery (220) in terms of forming the exterior of the battery (220). For example, the case (510) may have a generally cylindrical shape.

[0073] In one embodiment, the case (510) may be formed of a conductive material through which current can flow. In one embodiment, the case (510) may include a first body (511) and a second body (512). The first body (511) may form a top portion (or lid) (or cap) of the case (510) to seal an opening of the second body (512). The first body (511) may also be referred to as a cover plate. The second body (512) may be formed in a cylindrical shape in which a portion sealed by the first body (511) is open. The second body (512) may form a bottom portion and a side wall (or side) (or shell) of the case (510). The second body (512) may also be referred to as a battery body (or battery can body). An insulator (513) may be present between the first body (511) and the second body (512) to prevent the first body (511) and the second body (512) from electrically contacting each other.

[0074] In one embodiment, the positive electrode tab (521) can electrically connect the positive electrode sheet (610) of the jelly roll (500) and the first body (511) (or at least a portion of the first body (511)) of the case (510). The positive electrode tab (521) can be formed in a rectangular strip shape. The positive electrode tab (521) can be welded to the first body (511) (or at least a portion of the first body (511)) of the case (510) (or the positive electrode (523)). Accordingly, the first body (511) can perform the function of the positive electrode terminal of the battery (220). Hereinafter, at least a portion of the first body (511) of the case (510) to which the positive electrode tab (521) is electrically connected can be referred to as the positive electrode terminal (or the positive electrode (523)). In one embodiment, the anode electrode (523) may be electrically connected to the anode sheet (610). In one embodiment, referring to FIG. 5B, the anode electrode (523) may include a portion positioned on the second surface (322) of the case (510). The anode electrode (523) may be electrically connected to the anode sheet (610) by passing through the second surface (322) of the case (510).

[0075] In one embodiment, the negative tab (522) can electrically connect the negative sheet (630) of the jelly roll (500) and the second body (512) (or at least a portion of the second body (512)) of the case (510). The negative tab (522) can be formed in a rectangular strip shape. The negative tab (522) can be welded to the second body (512) (or at least a portion of the second body (512)) (or the negative electrode (524)) of the case (510). Accordingly, the second body (512) can perform the function of the negative electrode terminal of the battery (220). Hereinafter, at least a portion of the second body (512) of the case (510) to which the negative tab (522) is electrically connected can be referred to as the negative electrode terminal (or the negative electrode (524)). In one embodiment, the negative electrode (524) may be electrically connected to the negative electrode sheet (630). In one embodiment, referring to FIG. 5C, the negative electrode (524) may include a portion positioned on the first surface (321) of the case (510). The negative electrode (524) may be electrically connected to the negative electrode sheet (630) by passing through the first surface (321) of the case (510).

[0076] Referring to FIGS. 5d to 5g, in one embodiment, conductive patches (530, 540) may be attached to the battery (220).

[0077] In one embodiment, each of the conductive patches (530, 540) may be electrically connected to each of the electrode tabs (e.g., the positive tab (521) of FIG. 5A and the negative tab (522) of FIG. 5A) via the electrodes (523, 524). For example, the conductive tab (530) may be electrically connected to the positive tab (521) inside the case (510) via the positive electrode (523). The conductive patch (540) may be electrically connected to the negative tab (522) inside the case (510) via the negative electrode (524).

[0078] In one embodiment, the conductive tab (530) may be coupled to an outer surface (or second surface (322)) of the first body (511) of the case (510). In one embodiment, the conductive patch (540) may be coupled to an outer surface (or first surface (321)) of the second body (512) of the case (510). For example, each of the conductive tab (530) and the conductive patch (540) may be welded to each of the first body (511) and the second body (512), but the manner in which the conductive patches (530, 540) are coupled to the case (510) may vary.

[0079] In one embodiment, the conductive patch (540) may extend along the periphery of the lower surface (or the first surface (321)) of the second body (512). In one embodiment, the conductive patch (540) may extend from the lower surface (or the first surface (321)) of the second body (512) based on a single curvature.

[0080] In one embodiment, the conductive patch (540) can extend along the first side (321), the side surface (323), and the second side (322) of the battery (220). In one embodiment, referring to FIGS. 5H and 5I, the conductive patch (540) can be divided into a plurality of portions. For example, the conductive patch (540) can include a contact portion (541) that electrically contacts the negative electrode (524), a conductive tab (542) that extends along an edge of the first side (321) of the battery (220), a conductive extension tab (543) that extends along the side surface (323) of the battery (220), and an electrode portion (544) that forms the negative electrode on the second side (322) of the battery (220).

[0081] Referring to FIGS. 5D to 5I, in one embodiment, a non-conductive cover (550) (or an insulating cover) may be attached to the conductive patches (530, 540) to prevent the conductive patches (530, 540) from electrically contacting external conductors. For example, the non-conductive cover (550) may cover at least a portion of the conductive patches (530, 540). For example, the non-conductive cover (550) may cover at least a portion of the conductive patches (530, 540) so as not to encroach on a designated location of the battery (220) (e.g., a location where a barcode or a QR (quick response) code is placed).

[0082] For example, the non-conductive cover (550) may include openings (551, 552) that expose at least a portion of the conductive patches (530, 540). Through the openings (551, 552), the conductive patches (530, 540) may be electrically contacted to the printed circuit board (230) of the electronic device (101).

[0083] In one embodiment, the non-conductive cover (550) can extend along the first side (321), the side surface (323), and the second side (322) of the battery (220) to cover at least a portion of the conductive patches (530, 540).

[0084] FIG. 6A is a diagram illustrating the structure of a jelly roll inside a battery of an electronic device according to one embodiment. FIG. 6B is a diagram illustrating the positional relationship between a jelly roll and electrode tabs according to one embodiment. FIG. 6C is a diagram illustrating the positional relationship between a jelly roll, an electrode, and a conductive tab according to one embodiment. FIG. 6D is a diagram illustrating the positional relationship between a battery and a speaker according to one embodiment.

[0085] Referring to the bottom view (601) of FIG. 6A, the jelly roll (500) may include a positive electrode sheet (610), a negative electrode sheet (630), and separators (621, 625). The jelly roll (500) may be spirally rolled (or wound) (or rotated) in a designated rotational direction (e.g., clockwise or counterclockwise) with the positive electrode sheet (610), the negative electrode sheet (630), and the separators (621, 625). For example, when the jelly roll (500) is viewed from below, the jelly roll (500) may be spirally rolled (or wound) (or rotated) in a clockwise direction. For example, when the jelly roll (500) is viewed from above, the jelly roll (500) may be spirally rolled (or wound) (or rotated) in a counterclockwise direction.

[0086] For example, the jelly roll (500) may be deformed (or swollen) as the positive electrode sheet (610) and the negative electrode sheet (630) of the jelly roll (500) age. As the positive electrode sheet (610) and the negative electrode sheet (630) are deformed (or become parts), the positive electrode sheet (610) and the negative electrode sheet (630) may come into electrical contact (or be short-circuited). Accordingly, to prevent this, the positive electrode sheet (610) and the negative electrode sheet (630) of the jelly roll (500) may have different lengths. For example, the positive electrode sheet (610) of the jelly roll (500) may be shorter than the negative electrode sheet (630) of the jelly roll (500). For example, the negative electrode sheet (630) of the jelly roll (500) can be rolled (or wound) (or rotated) by a length corresponding to 90 degrees more than the positive electrode sheet (610) of the jelly roll (500). The portion of the negative electrode sheet (630) of the jelly roll (500) that is rolled by a length corresponding to 90 degrees more than the positive electrode sheet (610) can be referred to as an extended negative electrode sheet. However, the present invention is not limited thereto. For example, the negative electrode sheet (630) of the jelly roll (500) can be rolled (or wound) (or rotated) by a length corresponding to an angle less than 90 degrees (or an angle greater than 90 degrees) more than the positive electrode sheet (610) of the jelly roll (500). The positive electrode sheet (610) of the jelly roll (500) may be rolled (or wound) (or rotated) by a length corresponding to 90 degrees more than the negative electrode sheet (630). For example, the positive electrode sheet (610) of the jelly roll (500) may be rolled (or wound) (or rotated) by a length corresponding to an angle less than 90 degrees (or an angle greater than 90 degrees) more than the negative electrode sheet (630).

[0087] For example, the jelly roll (500) may include a first portion (640) including a positive electrode sheet (610) and a portion of the negative electrode sheet (630), and a second portion (650) including another portion of the negative electrode sheet (630). For example, the second portion (650) of the jelly roll (500) may extend in a designated rotational direction from the first portion (640) of the jelly roll (500). For example, the second portion (650) of the jelly roll (500) may extend from a portion of the negative electrode sheet (630). For example, the second portion (650) of the jelly roll (500) may extend from a portion of the negative electrode sheet (630) by a length corresponding to approximately 90 degrees. The second portion (650) of the jelly roll (500) (or another portion of the negative electrode sheet (630)) may be referred to as an extended negative electrode sheet.

[0088] Referring to the bottom view (603) of FIG. 6B, the negative electrode sheet (630) of the jelly roll (500) can be electrically connected to the negative electrode tab (522). For example, the negative electrode tab (522) can be electrically connected to the first end of the negative electrode sheet (630). The first end of the negative electrode sheet (630) can be located at the end of the outermost turn of the jelly roll (500). The first end of the negative electrode sheet (630) can be located at the last part (or the end of the turn) of the part that is rolled in the designated rotational direction of the second part (650) of the jelly roll (500) (or another part of the negative electrode sheet (630)). However, the present invention is not limited thereto. For example, the negative electrode tab (522) can be electrically connected to a part other than the first end of the negative electrode sheet (630). For example, the negative tab (522) may be electrically connected to a second end of the negative sheet (630). The second end of the negative sheet (630) may be located at a portion where another portion of the negative sheet (630) (or a second portion (650) of the jelly roll (500)) begins.

[0089] In one embodiment, a portion of the conductive patch (540) (or the conductive tab (542)) may be provided to reduce (or prevent) the magnetic field generated by another portion of the negative electrode sheet (630) (or the negative electrode sheet (630) included in the second portion (650) of the jelly roll (500)) from affecting (e.g., generating noise) the speaker (210) (or the voice coil (430 of FIG. 4) of the speaker (210). Referring to the bottom view (605) of FIG. 6c, the conductive patch (540) may be provided to generate a direction different from the direction of the magnetic field generated by another portion of the negative electrode sheet (630) (or the negative electrode sheet (630) included in the second portion (650) of the jelly roll (500)).

[0090] For example, the conductive tab (542) of the conductive patch (540) may extend along the edge of the first side (321) of the case (510). For example, the curvature of the conductive tab (542) of the conductive patch (540) may be one. For example, the curvature of the conductive tab (542) of the conductive patch (540) may correspond to the curvature of another portion of the negative electrode sheet (630) (or the negative electrode sheet (630) included in the second portion (650) of the jelly roll (500). However, the present invention is not limited thereto. For example, the curvature of the conductive tab (542) of the conductive patch (540) may be different from the curvature of another portion of the negative electrode sheet (630) (or the negative electrode sheet (630) included in the second portion (650) of the jelly roll (500). For example, the curvature of the conductive tab (542) of the conductive patch (540) may be greater (or smaller) than the curvature of another portion of the cathode sheet (630) (or the cathode sheet (630) included in the second portion (650) of the jelly roll (500).

[0091] For example, the length of the conductive tab (542) of the conductive patch (540) may correspond to the length of another part of the negative electrode sheet (630) (or the negative electrode sheet (630) included in the second part (650) of the jelly roll (500)). However, the present invention is not limited thereto. For example, the length of the conductive tab (542) of the conductive patch (540) may be shorter (or longer) than the length of another part of the negative electrode sheet (630) (or the negative electrode sheet (630) included in the second part (650) of the jelly roll (500)).

[0092] For example, the direction in which the conductive tab (542) of the conductive patch (540) extends (or the direction in which it rotates) may be opposite to the direction in which the other part of the negative electrode sheet (630) (or the negative electrode sheet (630) included in the second part (650) of the jelly roll (500)) extends (or the direction in which it rotates). For example, the conductive tab (542) of the conductive patch (540) may extend on the first side (321) of the battery (220) in a counterclockwise direction.

[0093] Referring to FIG. 6d, the conductive tab (542) of the conductive patch (540) may extend on the first side (321) of the battery (220) so as to cross the speaker (210) (or the voice coil (430 of FIG. 4) of the speaker (210)).

[0094] For example, the conductive tab (542) of the conductive patch (540) may extend on the first side (321) of the battery (220) so as to be adjacent to the speaker (210) (or the voice coil (430 of FIG. 4) of the speaker (210)) more than another portion of the negative electrode sheet (630) (or the second portion (650) of the jelly roll (500)). For example, the conductive tab (542) of the conductive patch (540) may extend in the opposite direction (665) of the designated rotational direction (661, 663) from the contact portion (541) that is in electrical contact with the negative electrode (524). For example, the conductive tab (542) of the conductive patch (540) can extend in the opposite direction (665) of the specified rotational direction (661, 663) between the contact portion (541) and the extension tab (543) of the conductive patch (540).

[0095] For example, the conductive tab (542) of the conductive patch (540) can extend in a direction opposite to the specified rotational direction (661, 663) so as not to overlap with another portion of the negative electrode sheet (630) (or the second portion (650) of the jelly roll (500)). For example, when the battery (220) is viewed from below, the conductive tab (542) of the conductive patch (540) can extend in a direction opposite to the specified rotational direction (661, 663) so as not to overlap with another portion of the negative electrode sheet (630) (or the second portion (650) of the jelly roll (500)). The first end of the conductive tab (542) may be a portion electrically connected to the extension tab (543) of the conductive patch (540). The second end of the conductive tab (542) may be a portion electrically connected to the contact portion (541) (or the negative electrode (524)) of the conductive patch (540). For example, when the battery (220) is viewed from the bottom, the conductive tab (542) of the conductive patch (540) may extend in the opposite direction (665) of the rotational direction (661, 663) specified so that the second end of the conductive tab (542) is spaced apart from the second end of the negative electrode sheet (630) so as not to overlap another part of the negative electrode sheet (630) (or the second part (650) of the jelly roll (500). However, the present invention is not limited thereto. For example, the conductive tab (542) of the conductive patch (540) can extend in a direction opposite (665) to the designated rotational direction (661, 663) so as to overlap with another portion of the negative electrode sheet (630) (or the second portion (650) of the jelly roll (500)). For example, at least a portion of the conductive tab (542) of the conductive patch (540) can extend in a direction opposite (665) to the designated rotational direction (661, 663) so as to overlap with another portion of the negative electrode sheet (630) (or the second portion (650) of the jelly roll (500)).

[0096] For example, when the battery (220) is viewed from below, the jelly roll (500) may be radially misaligned with respect to the battery (220) (or the voice coil (430 of FIG. 4) of the battery (220)). For example, when the battery (220) is viewed from below, the jelly roll (500) may be misaligned with respect to the battery (220) (or the voice coil (430 of FIG. 4) of the battery (220)) such that the central axis of the jelly roll (500) is parallel to the central axis of the battery (220) (or the voice coil (430 of FIG. 4) of the battery (220)).

[0097] Referring to FIG. 6d, the direction of the magnetic field (685) generated by the current (675) flowing in the conductive tab (542) on the first side (321) of the case (510) may be different from the direction of the magnetic field (683) generated by the current (673) flowing in another part of the cathode sheet (630) (or the second part (650) of the jelly roll (500)). For example, a magnetic field (685) on the battery (220) (or the voice coil (430 of FIG. 4) of the battery (220)) generated by a current (675) flowing in a conductive tab (542) extending counterclockwise (665) on the first side (321) of the case (510) can at least partially cancel out a magnetic field (683) on the battery (220) (or the voice coil (430 of FIG. 4) of the battery (220)) generated by a current (673) flowing in another part of the negative electrode sheet (630) extending clockwise (663) (or the second part (650) of the jelly roll (500)). Accordingly, the magnetic flux on the battery (220) (or the voice coil of the battery (220) (430 in FIG. 4)) caused by the magnetic field (685) generated by the current (675) flowing in the conductive tab (542) on the first side (321) of the case (510) can at least partially cancel out the magnetic flux on the battery (220) (or the voice coil of the battery (220) (430 in FIG. 4)) caused by the magnetic field (683) generated by the current (673) flowing in another part of the negative electrode sheet (630) (or the second part (650) of the jelly roll (500)).Accordingly, the influence (e.g., noise generation) of the magnetic field (683) generated by the current (673) flowing in another part of the negative electrode sheet (630) (or the second part (650) of the jelly roll (500)) on the battery (220) (or the voice coil (430 of FIG. 4) of the battery (220)) can be reduced through the magnetic field (685) generated by the current (675) flowing in the conductive tab (542) on the first surface (321) of the case (510).

[0098] FIGS. 7A to 7C are drawings showing different positional relationships of a conductive tab and a jelly roll according to one embodiment.

[0099] The battery (220) and speaker (210) described through FIGS. 7A to 7C may be included in the electronic device (101) described with reference to FIGS. 1 to 6D.

[0100] FIG. 7A can illustrate a state in which the jelly roll (500) and the negative electrode tab (522) are rotated 90 degrees clockwise, compared to FIG. 6D. For example, FIG. 7A can illustrate a state in which, in the structure in which the jelly roll (500), the negative electrode tab (522), and the conductive patch (540) of FIG. 6D are arranged, only the jelly roll (500) and the negative electrode tab (522) are rotated 90 degrees clockwise.

[0101] Referring to FIG. 7A, the conductive tab (542) of the conductive patch (540) and another portion of the cathode sheet (630) (or the second portion (650) of the jelly roll (500)) may substantially overlap each other. In one embodiment, the conductive tab (542) of the conductive patch (540) and another portion of the cathode sheet (630) (or the second portion (650) of the jelly roll (500)) may be arranged to cross the speaker (210) (or the voice coil (430 of FIG. 4) of the speaker (210)). For example, the conductive tab (542) of the conductive patch (540) and another portion of the cathode sheet (630) (or the second portion (650) of the jelly roll (500)) may be positioned adjacent to the speaker (210) (or the voice coil (430 in FIG. 4) of the speaker (210)).

[0102] For example, the conductive tab (542) of the conductive patch (540) may extend in a direction opposite to the designated rotational direction so as to overlap another portion of the negative electrode sheet (630) (or the second portion (650) of the jelly roll (500)). For example, when the battery (220) is viewed from below, the conductive tab (542) of the conductive patch (540) may be positioned such that the first end of the conductive tab (542) corresponds to the second end of the negative electrode sheet (630) so as to overlap another portion of the negative electrode sheet (630) (or the second portion (650) of the jelly roll (500)). For example, when looking at the battery (220) from the bottom, the conductive tab (542) of the conductive patch (540) may be positioned so that the second end of the conductive tab (542) overlaps with another part of the negative electrode sheet (630) (or the second part (650) of the jelly roll (500)).

[0103] FIG. 7b can illustrate a state in which the jelly roll (500) and the negative electrode tab (522) are rotated 180 degrees clockwise, compared to FIG. 6d. For example, FIG. 7b can illustrate a state in which, in the structure in which the jelly roll (500), the negative electrode tab (522), and the conductive patch (540) of FIG. 6d are arranged, only the jelly roll (500) and the negative electrode tab (522) are rotated 180 degrees clockwise.

[0104] Referring to FIG. 7B, the conductive tab (542) of the conductive patch (540) and another portion of the cathode sheet (630) (or the second portion (650) of the jelly roll (500)) may be positioned so as not to overlap each other. In one embodiment, the conductive tab (542) of the conductive patch (540) may be positioned so as to cross the speaker (210) (or the voice coil of the speaker (210) (430 of FIG. 4)). For example, the conductive tab (542) of the conductive patch (540) may be positioned closer to the speaker (210) (or the voice coil of the speaker (210) (430 of FIG. 4)) than to another portion of the cathode sheet (630) (or the second portion (650) of the jelly roll (500)).

[0105] For example, the conductive tab (542) of the conductive patch (540) may extend in a direction opposite to the specified rotational direction so as not to overlap another portion of the negative electrode sheet (630) (or the second portion (650) of the jelly roll (500)). For example, when the battery (220) is viewed from below, the conductive tab (542) of the conductive patch (540) may be positioned such that the first end of the conductive tab (542) is spaced apart from the first end of the negative electrode sheet (630) so as not to overlap another portion of the negative electrode sheet (630) (or the second portion (650) of the jelly roll (500)).

[0106] FIG. 7c can illustrate a state in which the jelly roll (500) and the negative electrode tab (522) are rotated 270 degrees clockwise, compared to FIG. 6d. For example, FIG. 7c can illustrate a state in which, in the structure in which the jelly roll (500), the negative electrode tab (522), and the conductive patch (540) of FIG. 6d are arranged, only the jelly roll (500) and the negative electrode tab (522) are rotated 270 degrees clockwise.

[0107] Referring to FIG. 7C, the conductive tab (542) of the conductive patch (540) and another portion of the cathode sheet (630) (or the second portion (650) of the jelly roll (500)) may be positioned so as not to overlap each other. In one embodiment, the conductive tab (542) of the conductive patch (540) may be positioned so as to cross the speaker (210) (or the voice coil of the speaker (210) (430 of FIG. 4)). For example, the conductive tab (542) of the conductive patch (540) may be positioned closer to the speaker (210) (or the voice coil of the speaker (210) (430 of FIG. 4)) than to another portion of the cathode sheet (630) (or the second portion (650) of the jelly roll (500)). For example, the conductive tab (542) of the conductive patch (540) may be positioned so as to face another portion of the cathode sheet (630) (or the second portion (650) of the jelly roll (500)) with respect to the central axis of the jelly roll (500).

[0108] FIGS. 8A to 8E are drawings showing different positional relationships of a conductive tab and a jelly roll according to one embodiment.

[0109] The battery (220) and speaker (210) described through FIGS. 8A to 8E may be included in the electronic device (101) described with reference to FIGS. 1 to 6D.

[0110] FIG. 8A can illustrate a state in which the conductive patch (540) is rotated 90 degrees clockwise, compared to FIG. 6D. For example, FIG. 8A can illustrate a state in which, in the structure in which the jelly roll (500), the negative tab (522), and the conductive patch (540) of FIG. 6D are arranged, only the conductive patch (540) is rotated 90 degrees clockwise.

[0111] Referring to FIG. 8A, the conductive tab (542) of the conductive patch (540) and another portion of the cathode sheet (630) (or the second portion (650) of the jelly roll (500)) may be positioned so as not to overlap each other. In one embodiment, the conductive tab (542) of the conductive patch (540) and another portion of the cathode sheet (630) (or the second portion (650) of the jelly roll (500)) may be positioned so as not to cross the speaker (210) (or the voice coil (430 of FIG. 4) of the speaker (210)).

[0112] Referring to FIG. 8A, the conductive tab (542) of the conductive patch (540) and another portion of the cathode sheet (630) (or the second portion (650) of the jelly roll (500)) may be positioned so as not to overlap each other. In one embodiment, the conductive tab (542) of the conductive patch (540) may be positioned so as to cross the speaker (210) (or the voice coil of the speaker (210) (430 of FIG. 4)). For example, the conductive tab (542) of the conductive patch (540) may be positioned closer to the speaker (210) (or the voice coil of the speaker (210) (430 of FIG. 4)) than to another portion of the cathode sheet (630) (or the second portion (650) of the jelly roll (500)). For example, the conductive tab (542) of the conductive patch (540) may be positioned so as to face another portion of the cathode sheet (630) (or the second portion (650) of the jelly roll (500)) with respect to the central axis of the jelly roll (500).

[0113] FIG. 8B can illustrate a state in which the conductive patch (540) is rotated 90 degrees clockwise, compared to FIG. 6D. For example, FIG. 8B can illustrate a state in which, in the structure in which the jelly roll (500), the negative tab (522), and the conductive patch (540) of FIG. 6D are arranged, only the conductive patch (540) is rotated 90 degrees clockwise.

[0114] Referring to FIG. 8B, the conductive tab (542) of the conductive patch (540) and another portion of the cathode sheet (630) (or the second portion (650) of the jelly roll (500)) may be positioned so as not to overlap each other. In one embodiment, the conductive tab (542) of the conductive patch (540) and another portion of the cathode sheet (630) (or the second portion (650) of the jelly roll (500)) may be positioned so as not to cross the speaker (210) (or the voice coil (430 of FIG. 4) of the speaker (210)).

[0115] Referring to FIG. 8B, for example, the conductive tab (542) of the conductive patch (540) may extend in a direction opposite to the specified rotational direction so as not to overlap another portion of the negative electrode sheet (630) (or the second portion (650) of the jelly roll (500)). For example, when the battery (220) is viewed from the bottom, the conductive tab (542) of the conductive patch (540) may be positioned such that the first end of the conductive tab (542) is spaced apart from the first end of the negative electrode sheet (630) so as not to overlap another portion of the negative electrode sheet (630) (or the second portion (650) of the jelly roll (500)).

[0116] FIG. 8C can illustrate a state in which the conductive patch (540) is rotated 90 degrees clockwise, compared to FIG. 6D. For example, FIG. 8C can illustrate a state in which, in the structure in which the jelly roll (500), the negative tab (522), and the conductive patch (540) of FIG. 6D are arranged, only the conductive patch (540) is rotated 90 degrees clockwise.

[0117] Referring to FIG. 8c, the conductive tab (542) of the conductive patch (540) and another portion of the cathode sheet (630) (or the second portion (650) of the jelly roll (500)) may be arranged to overlap each other. In one embodiment, the conductive tab (542) of the conductive patch (540) and another portion of the cathode sheet (630) (or the second portion (650) of the jelly roll (500)) may be arranged so as not to cross the speaker (210) (or the voice coil (430 of FIG. 4) of the speaker (210)).

[0118] Referring to FIG. 8C, the conductive tab (542) of the conductive patch (540) can extend in a direction opposite to the designated rotational direction so as to overlap with another portion of the negative electrode sheet (630) (or the second portion (650) of the jelly roll (500)). For example, when the battery (220) is viewed from the bottom, the conductive tab (542) of the conductive patch (540) can be positioned such that the first end of the conductive tab (542) corresponds to the second end of the negative electrode sheet (630) so as to overlap with another portion of the negative electrode sheet (630) (or the second portion (650) of the jelly roll (500)). For example, when looking at the battery (220) from the bottom, the conductive tab (542) of the conductive patch (540) may be positioned so that the second end of the conductive tab (542) overlaps with another part of the negative electrode sheet (630) (or the second part (650) of the jelly roll (500)).

[0119] FIG. 8d can illustrate a state in which, compared to FIG. 6d, the conductive patch (540) is rotated 270 degrees clockwise, and the jelly roll (500) and the negative tab (522) are rotated 90 degrees clockwise.

[0120] Referring to FIG. 8d, the conductive tab (542) of the conductive patch (540) and another portion of the cathode sheet (630) (or the second portion (650) of the jelly roll (500)) may be positioned so as not to overlap each other. In one embodiment, the other portion of the cathode sheet (630) (or the second portion (650) of the jelly roll (500)) may be positioned so as to cross the speaker (210) (or the voice coil (430 of FIG. 4) of the speaker (210)).

[0121] Referring to FIG. 8D, for example, the conductive tab (542) of the conductive patch (540) may extend in a direction opposite to the specified rotational direction so as not to overlap with another portion of the negative electrode sheet (630) (or the second portion (650) of the jelly roll (500)). For example, when the battery (220) is viewed from below, the conductive tab (542) of the conductive patch (540) may be positioned such that the first end of the conductive tab (542) is spaced apart from the first end of the negative electrode sheet (630) so as not to overlap with another portion of the negative electrode sheet (630) (or the second portion (650) of the jelly roll (500)).

[0122] FIG. 8e can illustrate a state in which the jelly roll (500), the negative tab (522), and the conductive patch (540) are rotated 180 degrees clockwise, compared to FIG. 6d.

[0123] Referring to FIG. 8e, the conductive tab (542) of the conductive patch (540) and another portion of the cathode sheet (630) (or the second portion (650) of the jelly roll (500)) may be positioned so as not to overlap each other. In one embodiment, the other portion of the cathode sheet (630) (or the second portion (650) of the jelly roll (500)) may be positioned so as not to cross the speaker (210) (or the voice coil (430 of FIG. 4) of the speaker (210)).

[0124] Referring to FIG. 8E, for example, the conductive tab (542) of the conductive patch (540) may extend in a direction opposite to the specified rotational direction so as not to overlap another portion of the negative electrode sheet (630) (or the second portion (650) of the jelly roll (500)). For example, when the battery (220) is viewed from the bottom, the conductive tab (542) of the conductive patch (540) may extend in a direction opposite to the specified rotational direction so as not to overlap another portion of the negative electrode sheet (630) (or the second portion (650) of the jelly roll (500)).

[0125] FIGS. 9A and 9B are diagrams showing different positional relationships of batteries and speakers of electronic devices worn in different ear canals.

[0126] The electronic device (901) of FIG. 9A may be a wearable device worn on the user's right ear. The electronic device (902) of FIG. 9B may be a wearable device worn on the user's left ear. The electronic devices (901) of FIG. 9A and 902 of FIG. 9B may include a speaker (210), a battery (220), a printed circuit board (230), a battery bracket (240), and an electrode assembly (250). The electronic devices (901) of FIG. 9A and 9B may be configured such that the battery (220) and the printed circuit board (230) are in electrical contact with each other through conductive patches (530, 540) exposed through openings (551, 552).

[0127] Comparing the electronic device (901) of FIG. 9A with the electronic device (902) of FIG. 9B, the electronic device (901) and the electronic device (902) may have a left-right symmetrical structure, excluding the battery (220) and the electrode assembly (250). Comparing the electronic device (901) of FIG. 9A with the electronic device (902) of FIG. 9B, the electronic device (901) and the electronic device (902) may include a battery (220) and an electrode assembly (250) that are not left-right symmetrical.

[0128] Since the battery (220) and the electrode assembly (250) are not symmetrical, another part of the negative electrode sheet (630) of the jelly roll (500) illustrated in FIG. 6d included in the battery (220) (or the second part (650) of the jelly roll (500)) may cross the speaker (210) (or the voice coil (430 of FIG. 4) of the speaker (210)) (e.g., the electronic device (901) of FIG. 9a), or the conductive tab (542) of the conductive patch (540) may cross the speaker (210) (or the voice coil (430 of FIG. 4) of the speaker (210)) (e.g., the electronic device (902) of FIG. 9b).

[0129] FIG. 10A is a bottom view of a battery with a conductive tab attached according to one embodiment. FIG. 10B is an exploded view of a conductive tab and a non-conductive cover attached to a battery of an electronic device according to one embodiment. FIG. 10C is an exploded view of a conductive tab attached to a battery of an electronic device according to one embodiment. FIG. 10D is a diagram showing the positional relationship of a jelly roll, an electrode, and a conductive tab according to one embodiment.

[0130] In some embodiments, a magnetic field generated by a current flowing in the negative tab (522) may affect (e.g., generate noise) the speaker (210) (or the voice coil (430 in FIG. 4) of the speaker (210). Accordingly, a method of generating a current flow to reduce (or eliminate) the magnetic field generated by the current flowing in the negative tab (522) may be required.

[0131] Referring to FIG. 10A, compared to FIGS. 5D to 5G, a conductive patch (540) including a longer extended contact portion (545) (or conductive tag) instead of a contact portion (541) may be attached to the battery (220). The conductive patch (540) may be attached to the battery (220) by being soldered (1011, 1012) around a second end opposite to a first end that is in electrical contact with a conductive tab (542) of the extended contact portion (545). The conductive patch (540) may be electrically connected to the negative tab (522) of FIG. 5A by having the extended contact portion (545) make electrical contact with the electrode (524).

[0132] Referring to FIGS. 10A to 10C, the conductive patch (540) may include an extended contact portion (545) electrically contacting the negative electrode (524), a conductive tab (542) extending along an edge of the first side (321) of the battery (220), a conductive extension tab (543) extending along a side surface (323) of the battery (220), and an electrode portion (544) forming the negative electrode on the second side (322) of the battery (220).

[0133] Referring to FIGS. 10A and 10B , in one embodiment, a non-conductive cover (550) (or an insulating cover) may be attached to the conductive patch (540) to prevent the conductive patch (540) from electrically contacting external conductors. For example, the non-conductive cover (550) may cover at least a portion of the conductive patch (540). For example, the non-conductive cover (550) may cover at least a portion of the conductive patch (540) to prevent it from encroaching on a designated location of the battery (220) (e.g., a location where a barcode or a QR (quick response) code is placed).

[0134] Referring to FIG. 10b, for example, the non-conductive cover (550) may include openings (551, 552) that expose at least a portion of the conductive patches (530, 540). Through the openings (551, 552), the conductive patches (530, 540) may be electrically contacted to the printed circuit board (230) of the electronic device (101).

[0135] Referring to FIG. 10d, in one embodiment, the extended contact portion (545) of the conductive patch (540) may be arranged to be substantially parallel to the negative tab (522). In one embodiment, the extended contact portion (545) of the conductive patch (540) may extend in the same length direction (or in the opposite length direction) as the negative tab (522). Referring to FIG. 10d, in one embodiment, the extended contact portion (545) of the conductive patch (540) may cross the first side (221) of the case (510) (or the jelly roll (500)) such that current flows in the extended contact portion (545) in a direction opposite to the direction of current flowing in the negative tab (522).

[0136] FIG. 11 is a block diagram of an electronic device (1101) within a network environment (1100), according to various embodiments.

[0137] Referring to FIG. 11, in a network environment (1100), an electronic device (1101) may communicate with an electronic device (1102) via a first network (1198) (e.g., a short-range wireless communication network), or may communicate with at least one of an electronic device (1104) or a server (1108) via a second network (1199) (e.g., a long-range wireless communication network). In one embodiment, the electronic device (1101) may communicate with the electronic device (1104) via the server (1108). According to one embodiment, the electronic device (1101) may include a processor (1120), a memory (1130), an input module (1150), an audio output module (1155), a display module (1160), an audio module (1170), a sensor module (1176), an interface (1177), a connection terminal (1178), a haptic module (1179), a camera module (1180), a power management module (1188), a battery (1189), a communication module (1190), a subscriber identification module (1196), or an antenna module (1197). In some embodiments, the electronic device (1101) may omit at least one of these components (e.g., the connection terminal (1178)), or may have one or more other components added. In some embodiments, some of these components (e.g., sensor module (1176), camera module (1180), or antenna module (1197)) may be integrated into a single component (e.g., display module (1160)).

[0138] The processor (1120) may, for example, execute software (e.g., a program (1140)) to control at least one other component (e.g., a hardware or software component) of the electronic device (1101) connected to the processor (1120) and perform various data processing or operations. According to one embodiment, as at least a part of the data processing or operations, the processor (1120) may store commands or data received from other components (e.g., a sensor module (1176) or a communication module (1190)) in a volatile memory (1132), process the commands or data stored in the volatile memory (1132), and store result data in a non-volatile memory (1134). According to one embodiment, the processor (1120) may include a main processor (1121) (e.g., a central processing unit or an application processor) or an auxiliary processor (1123) (e.g., a graphics processing unit, a neural processing unit (NPU), an image signal processor, a sensor hub processor, or a communication processor) that can operate independently or together with the main processor (1121). For example, when the electronic device (1101) includes the main processor (1121) and the auxiliary processor (1123), the auxiliary processor (1123) may be configured to use less power than the main processor (1121) or to be specialized for a given function. The auxiliary processor (1123) may be implemented separately from the main processor (1121) or as a part thereof.

[0139] The auxiliary processor (1123) may control at least a portion of functions or states associated with at least one component (e.g., a display module (1160), a sensor module (1176), or a communication module (1190)) of the electronic device (1101), for example, on behalf of the main processor (1121) while the main processor (1121) is in an inactive (e.g., sleep) state, or together with the main processor (1121) while the main processor (1121) is in an active (e.g., application execution) state. In one embodiment, the auxiliary processor (1123) (e.g., an image signal processor or a communication processor) may be implemented as a part of another functionally related component (e.g., a camera module (1180) or a communication module (1190)). In one embodiment, the auxiliary processor (1123) (e.g., a neural network processing unit) may include a hardware structure specialized for processing artificial intelligence models. The artificial intelligence models may be generated through machine learning. This learning can be performed, for example, on the electronic device (1101) itself where the artificial intelligence model is executed, or can be performed through a separate server (e.g., server (1108)). The learning algorithm can include, for example, supervised learning, unsupervised learning, semi-supervised learning, or reinforcement learning, but is not limited to the examples described above. The artificial intelligence model can include multiple artificial neural network layers.The artificial neural network may be one of a deep neural network (DNN), a convolutional neural network (CNN), a recurrent neural network (RNN), a restricted Boltzmann machine (RBM), a deep belief network (DBN), a bidirectional recurrent deep neural network (BRDNN), a deep Q-network, or a combination of two or more of the above, but is not limited to the examples described above. In addition to, or alternatively to, a hardware structure, an artificial intelligence model may include a software structure.

[0140] The memory (1130) can store various data used by at least one component (e.g., the processor (1120) or the sensor module (1176)) of the electronic device (1101). The data can include, for example, software (e.g., the program (1140)) and input data or output data for commands related thereto. The memory (1130) can include a volatile memory (1132) or a non-volatile memory (1134).

[0141] The program (1140) may be stored as software in memory (1130) and may include, for example, an operating system (1142), middleware (1144), or an application (1146).

[0142] The input module (1150) can receive commands or data to be used in a component of the electronic device (1101) (e.g., a processor (1120)) from an external source (e.g., a user) of the electronic device (1101). The input module (1150) can include, for example, a microphone, a mouse, a keyboard, a key (e.g., a button), or a digital pen (e.g., a stylus pen).

[0143] The audio output module (1155) can output audio signals to the outside of the electronic device (1101). The audio output module (1155) can include, for example, a speaker or a receiver. The speaker can be used for general purposes, such as multimedia playback or recording playback. The receiver can be used to receive incoming calls. In one embodiment, the receiver can be implemented separately from the speaker or as part of the speaker.

[0144] The display module (1160) can visually provide information to an external party (e.g., a user) of the electronic device (1101). The display module (1160) may include, for example, a display, a holographic device, or a projector and a control circuit for controlling the device. In one embodiment, the display module (1160) may include a touch sensor configured to detect a touch, or a pressure sensor configured to measure the intensity of a force generated by the touch.

[0145] The audio module (1170) can convert sound into an electrical signal, or vice versa, convert an electrical signal into sound. According to one embodiment, the audio module (1170) can acquire sound through the input module (1150), output sound through the sound output module (1155), or an external electronic device (e.g., electronic device (1102)) (e.g., speaker or headphone) directly or wirelessly connected to the electronic device (1101).

[0146] The sensor module (1176) can detect the operating status (e.g., power or temperature) of the electronic device (1101) or the external environmental status (e.g., user status) and generate an electrical signal or data value corresponding to the detected status. According to one embodiment, the sensor module (1176) can include, for example, a gesture sensor, a gyro sensor, a barometric pressure sensor, a magnetic sensor, an acceleration sensor, a grip sensor, a proximity sensor, a color sensor, an IR (infrared) sensor, a biometric sensor, a temperature sensor, a humidity sensor, or an illuminance sensor.

[0147] The interface (1177) may support one or more designated protocols that may be used to directly or wirelessly connect the electronic device (1101) with an external electronic device (e.g., the electronic device (1102)). In one embodiment, the interface (1177) may include, for example, a high definition multimedia interface (HDMI), a universal serial bus (USB) interface, an SD card interface, or an audio interface.

[0148] The connection terminal (1178) may include a connector through which the electronic device (1101) may be physically connected to an external electronic device (e.g., the electronic device (1102)). In one embodiment, the connection terminal (1178) may include, for example, an HDMI connector, a USB connector, an SD card connector, or an audio connector (e.g., a headphone connector).

[0149] The haptic module (1179) can convert electrical signals into mechanical stimuli (e.g., vibration or movement) or electrical stimuli that a user can perceive through tactile or kinesthetic sensations. In one embodiment, the haptic module (1179) may include, for example, a motor, a piezoelectric element, or an electrical stimulation device.

[0150] The camera module (1180) can capture still images and videos. In one embodiment, the camera module (1180) may include one or more lenses, image sensors, image signal processors, or flashes.

[0151] The power management module (1188) can manage the power supplied to the electronic device (1101). According to one embodiment, the power management module (1188) can be implemented as, for example, at least a part of a power management integrated circuit (PMIC).

[0152] A battery (1189) may power at least one component of the electronic device (1101). In one embodiment, the battery (1189) may include, for example, a non-rechargeable primary battery, a rechargeable secondary battery, or a fuel cell.

[0153] The communication module (1190) may support the establishment of a direct (e.g., wired) communication channel or a wireless communication channel between the electronic device (1101) and an external electronic device (e.g., electronic device (1102), electronic device (1104), or server (1108)), and the performance of communication through the established communication channel. The communication module (1190) may operate independently from the processor (1120) (e.g., application processor) and may include one or more communication processors that support direct (e.g., wired) communication or wireless communication. According to one embodiment, the communication module (1190) may include a wireless communication module (1192) (e.g., a cellular communication module, a short-range wireless communication module, or a global navigation satellite system (GNSS) communication module) or a wired communication module (1194) (e.g., a local area network (LAN) communication module, or a power line communication module). Among these communication modules, a corresponding communication module can communicate with an external electronic device (1104) via a first network (1198) (e.g., a short-range communication network such as Bluetooth, wireless fidelity (WiFi) direct, or infrared data association (IrDA)) or a second network (1199) (e.g., a long-range communication network such as a legacy cellular network, a 5G network, a next-generation communication network, the Internet, or a computer network (e.g., a LAN or WAN)). These various types of communication modules can be integrated into a single component (e.g., a single chip) or implemented as multiple separate components (e.g., multiple chips). The wireless communication module (1192) can verify or authenticate the electronic device (1101) within a communication network such as the first network (1198) or the second network (1199) by using subscriber information (e.g., an international mobile subscriber identity (IMSI)) stored in the subscriber identification module (1196).

[0154] The wireless communication module (1192) can support 5G networks and next-generation communication technologies following the 4G network, such as NR access technology (new radio access technology). The NR access technology can support high-speed transmission of high-capacity data (eMBB (enhanced mobile broadband)), minimization of terminal power and connection of multiple terminals (mMTC (massive machine type communications)), or high reliability and low latency (URLLC (ultra-reliable and low-latency communications)). The wireless communication module (1192) can support, for example, a high-frequency band (e.g., mmWave band) to achieve a high data transmission rate. The wireless communication module (1192) may support various technologies for securing performance in a high-frequency band, such as beamforming, massive multiple-input and multiple-output (MIMO), full dimensional MIMO (FD-MIMO), array antenna, analog beam-forming, or large scale antenna. The wireless communication module (1192) may support various requirements specified in the electronic device (1101), an external electronic device (e.g., the electronic device (1104)), or a network system (e.g., the second network (1199)). According to one embodiment, the wireless communication module (1192) may support a peak data rate (e.g., 20 Gbps or more) for eMBB realization, a loss coverage (e.g., 664 dB or less) for mMTC realization, or a U-plane latency (e.g., 0.5 ms or less for downlink (DL) and uplink (UL), or 6 ms or less for round trip) for URLLC realization.

[0155] The antenna module (1197) can transmit or receive signals or power to or from an external device (e.g., an external electronic device). In one embodiment, the antenna module (1197) may include an antenna including a radiator formed of a conductor or a conductive pattern formed on a substrate (e.g., a PCB). In one embodiment, the antenna module (1197) may include a plurality of antennas (e.g., an array antenna). In this case, at least one antenna suitable for a communication method used in a communication network, such as the first network (1198) or the second network (1199), may be selected from the plurality of antennas by, for example, the communication module (1190). A signal or power may be transmitted or received between the communication module (1190) and an external electronic device via the selected at least one antenna. In some embodiments, in addition to the radiator, another component (e.g., a radio frequency integrated circuit (RFIC)) may be additionally formed as a part of the antenna module (1197).

[0156] In one embodiment, the antenna module (1197) may form a mmWave antenna module. According to one embodiment, the mmWave antenna module may include a printed circuit board, an RFIC disposed on or adjacent a first side (e.g., a bottom side) of the printed circuit board and capable of supporting a designated high frequency band (e.g., a mmWave band), and a plurality of antennas (e.g., an array antenna) disposed on or adjacent a second side (e.g., a top side or a side side) of the printed circuit board and capable of transmitting or receiving signals in the designated high frequency band.

[0157] At least some of the above components can be interconnected and exchange signals (e.g., commands or data) with each other via a communication method between peripheral devices (e.g., a bus, GPIO (general purpose input and output), SPI (serial peripheral interface), or MIPI (mobile industry processor interface)).

[0158] According to one embodiment, commands or data may be transmitted or received between the electronic device (1101) and an external electronic device (1104) via a server (1108) connected to a second network (1199). Each of the external electronic devices (1102 or 1104) may be the same or a different type of device as the electronic device (1101). According to one embodiment, all or part of the operations executed in the electronic device (1101) may be executed in one or more of the external electronic devices (1102, 1104, or 1108). For example, when the electronic device (1101) is to perform a certain function or service automatically or in response to a request from a user or another device, the electronic device (1101) may, instead of or in addition to executing the function or service itself, request one or more external electronic devices to perform the function or at least a part of the service. One or more external electronic devices that receive the request may execute at least a portion of the requested function or service, or an additional function or service related to the request, and transmit the result of the execution to the electronic device (1101). The electronic device (1101) may process the result as is or additionally and provide it as at least a portion of a response to the request. For this purpose, cloud computing, distributed computing, mobile edge computing (MEC), or client-server computing technology may be used, for example. The electronic device (1101) may provide an ultra-low latency service by using distributed computing or mobile edge computing, for example. In another embodiment, the external electronic device (1104) may include an Internet of Things (IoT) device. The server (1108) may be an intelligent server utilizing machine learning and / or a neural network.According to one embodiment, an external electronic device (1104) or server (1108) may be included within the second network (1199). The electronic device (1101) may be applied to intelligent services (e.g., smart homes, smart cities, smart cars, or healthcare) based on 5G communication technology and IoT-related technology.

[0159] As described above, the wearable device (101) may include a speaker (210) including a coil (430). The wearable device (101) may include a coin cell battery (220) disposed on the speaker (210). The coin cell battery (220) may include a case (510) including a first side (321) facing the speaker (210) and a second side (322) opposite the first side (321). The coin cell battery (220) may include a jelly roll (500) within the case (510) including a first electrode sheet (630) and a second electrode sheet (610), and spirally wound in a first rotational direction. The jelly roll (500) may include a first portion (640) including a portion of the first electrode sheet (630) and the second electrode sheet (610). The jelly roll (500) may include a second portion (650) extending in the first rotational direction from the first portion (640) of the jelly roll (500). The second portion (650) of the jelly roll (500) may include another portion of the first electrode sheet (630) extending from the portion of the first electrode sheet (630). The coin cell battery (220) may include a first electrode (524) electrically connected to the first electrode sheet (630) and including a portion positioned on the first surface (321) of the case (510). The coin cell battery (220) may include a second electrode (523) electrically connected to the second electrode sheet (610) and including a portion positioned on the second surface (322) of the case (510). The wearable device (101) may include a conductive tab (542) on the first surface (321) of the case (510), electrically connected to a portion of the first electrode (524) positioned on the first surface (321) of the case (510).The conductive tab (542) on the first surface (321) of the case (510) can extend in a second rotational direction opposite to the first rotational direction so as not to overlap with the coil (430) of the speaker (210).

[0160] The conductive tab (542) on the first surface (321) of the case (510) may extend along the periphery of the first surface (321).

[0161] The curvature of the conductive tab (542) on the first surface (321) of the case (510) may correspond to the curvature of another portion of the first electrode sheet (630) extending from the portion of the first electrode sheet (630).

[0162] The length of the conductive tab (542) on the first surface (321) of the case (510) may correspond to the length of the other part of the first electrode sheet (630) extending from the part of the first electrode sheet (630).

[0163] The other part of the first electrode sheet (630) extending from the part of the first electrode sheet (630) may extend in the first rotational direction so as to overlap the coil (430) of the speaker (210).

[0164] The above jelly roll (500) may be radially misaligned with respect to the coil (430).

[0165] The central axis (345) of the above jelly roll (500) may be parallel to the central axis (341) of the coil (430).

[0166] The first electrode (524) can be electrically connected to the first electrode sheet (630) by passing through the first surface (321) of the case (510). The second electrode (523) can be electrically connected to the second electrode sheet (610) by passing through the second surface (322) of the case (510).

[0167] It may include a non-conductive cover (550) covering the above-mentioned conductive tab (542).

[0168] The above first electrode sheet (630) may be a cathode sheet. The above second electrode sheet (610) may be a cathode sheet.

[0169] The coin cell battery (220) may include a first electrode tab (522) for electrical connection between the first electrode sheet (630) and the first electrode (524). The wearable device (101) may include a conductive tag (545) including a first terminal electrically connected to the portion of the first electrode (524) positioned on the first surface (321) of the case (510) and a second terminal electrically connected to the conductive tab (542) on the first surface (321) of the case (510). The conductive tag (545) may cross the first surface (321) of the case (510) so that current flows in the conductive tag (545) in a direction opposite to the direction of current flowing in the first electrode tab.

[0170] The magnetic flux on the coil (430) caused by the magnetic field (685) generated by the current flowing in the conductive tab (542) on the first surface (321) of the case (510) can at least partially cancel out another magnetic flux on the coil (430) caused by another magnetic field (683) generated by another part of the first electrode sheet (630) extending from the part of the first electrode sheet (630).

[0171] The conductive tab (542) on the first surface (321) of the case (510) can extend in the second rotational direction so as not to overlap with the other part of the first electrode sheet (630) extending from the part of the first electrode sheet (630).

[0172] The conductive tab (542) on the first surface (321) of the case (510) can extend in the second rotational direction so as to overlap at least a portion of the other portion of the first electrode sheet (630) extending from the portion of the first electrode sheet (630).

[0173] The wearable device (101) may include a conductive extension tab (543) extending from the conductive tab (542) on the first surface (321) of the case (510) and on a third surface (323) between the first surface (321) and the second surface of the case (510). The wearable device (101) may include a first electrode terminal (544) extending from the conductive extension tab (543) on the third surface (323) of the case (510) and on the second surface (322) of the case (510).

[0174] As described above, the wearable device (101) may include a speaker (210) including a coil (430). The wearable device (101) may include a coin cell battery (220) disposed on the speaker (210). The coin cell battery (220) may include a case (510) including a first side (321) facing the speaker (210) and a second side (322) opposite the first side (321). The coin cell battery (220) may include a jelly roll (500) within the case (510) including a first electrode sheet (630) and a second electrode sheet (610), and spirally wound in a first rotational direction. The jelly roll (500) may include a first portion (640) including a portion of the first electrode sheet (630) and the second electrode sheet (610). The jelly roll (500) may include a second portion (650) extending in the first rotational direction from the first portion (640) of the jelly roll (500). The second portion (650) of the jelly roll (500) may include another portion of the first electrode sheet (630) extending from the portion of the first electrode sheet (630). The coin cell battery (220) may include a first electrode (524) electrically connected to the first electrode sheet (630) and including a portion positioned on the first surface (321) of the case (510). The coin cell battery (220) may include a second electrode (523) electrically connected to the second electrode sheet (610) and including a portion positioned on the second surface (322) of the case (510). The wearable device (101) may include a conductive tab (542) on the first surface (321) of the case (510), electrically connected to a portion of the first electrode (524) positioned on the first surface (321) of the case (510).The conductive tab (542) on the first surface (321) of the case (510) can extend in a second rotational direction opposite to the first rotational direction. The other part of the first electrode sheet (630) extending from the part of the first electrode sheet (630) can extend in the first rotational direction so as not to overlap with the coil (430) of the speaker (210).

[0175] The conductive tab (542) on the first surface (321) of the case (510) may extend along the periphery of the first surface (321).

[0176] The length of the conductive tab (542) on the first surface (321) of the case (510) may correspond to the length of the other part of the first electrode sheet (630) extending from the part of the first electrode sheet (630).

[0177] The conductive tab (542) on the first surface (321) of the case (510) can extend in the second rotational direction so as to overlap with the coil (430) of the speaker (210).

[0178] The above jelly roll (500) may be radially misaligned with respect to the coil (430).

[0179] Electronic devices according to the various embodiments disclosed in this document may take various forms. Electronic devices may include, for example, portable communication devices (e.g., smartphones), computer devices, portable multimedia devices, portable medical devices, cameras, wearable devices, or home appliances. Electronic devices according to the embodiments of this document are not limited to the aforementioned devices.

[0180] The various embodiments of this document and the terminology used therein are not intended to limit the technical features described in this document to specific embodiments, but should be understood to include various modifications, equivalents, or substitutes of the embodiments. In connection with the description of the drawings, similar reference numerals may be used for similar or related components. The singular form of a noun corresponding to an item may include one or more of the items, unless the context clearly indicates otherwise. In this document, each of the phrases "A or B", "at least one of A and B", "at least one of A or B", "A, B, or C", "at least one of A, B, and C", and "at least one of A, B, or C" can include any one of the items listed together in the corresponding phrase among those phrases, or all possible combinations thereof. Terms such as "first," "second," or "first" or "second" may be used merely to distinguish one component from another, and do not limit the components in any other respect (e.g., importance or order). When a component (e.g., a first component) is referred to as "coupled" or "connected" to another component (e.g., a second component), with or without the terms "functionally" or "communicatively," it means that the component can be connected to the other component directly (e.g., wired), wirelessly, or through a third component.

Claims

1. In a wearable device (101), A speaker (210) including a coil (430); A coin cell battery (220) placed on the above speaker (210), the coin cell battery (220): A case (510) comprising a first side (321) facing the speaker (210) and a second side (322) opposite to the first side (321); A jelly roll (500) within the case (510), which includes a first electrode sheet (630) and a second electrode sheet (610), and is spirally wound in a first rotational direction, the jelly roll (500) A first portion (640) including a portion of the first electrode sheet (630) and the second electrode sheet (610), and A second portion (650) extending in the first rotational direction from the first portion (640) of the jelly roll (500), the second portion (650) of the jelly roll (500) including another portion of the first electrode sheet (630) extending from the portion of the first electrode sheet (630); A first electrode (524) electrically connected to the first electrode sheet (630) and including a portion positioned on the first surface (321) of the case (510); and A second electrode (523) electrically connected to the second electrode sheet (610) and including a portion positioned on the second surface (322) of the case (510); and A conductive tab (542) on the first surface (321) of the case (510) is electrically connected to the part of the first electrode (524) located on the first surface (321) of the case (510), The conductive tab (542) on the first surface (321) of the case (510) is Extending in a second rotational direction opposite to the first rotational direction so as not to overlap with the coil (430) of the speaker (210). Wearable devices.

2. In claim 1, The conductive tab (542) on the first surface (321) of the case (510) is Extending along the periphery of the first surface (321) Wearable devices.

3. In claim 2, The curvature of the conductive tab (542) on the first surface (321) of the case (510) is Corresponding to the curvature of the other part of the first electrode sheet (630) extending from the part of the first electrode sheet (630), Wearable devices.

4. In any one of claims 1 to 3, The length of the conductive tab (542) on the first surface (321) of the case (510) is Corresponding to the length of the other part of the first electrode sheet (630) extending from the part of the first electrode sheet (630), Wearable devices.

5. In any one of claims 1 to 4, The other part of the first electrode sheet (630) extending from the part of the first electrode sheet (630), Extending in the first rotational direction so as to overlap with the coil (430) of the speaker (210), Wearable devices.

6. In any one of claims 1 to 5, The above jelly roll (500) is, Radial misalignment with respect to the above coil (430), Wearable devices.

7. In claim 6, The central axis (345) of the above jelly roll (500) is Parallel to the central axis (341) of the above coil (430) Wearable devices.

8. In any one of claims 1 to 7, The first electrode (524) is electrically connected to the first electrode sheet (630) through the first surface (321) of the case (510), The second electrode (523) is electrically connected to the second electrode sheet (610) through the second surface (322) of the case (510). Wearable devices.

9. In any one of claims 1 to 8, Including a non-conductive cover (550) covering the above-mentioned conductive tab (542), Wearable devices.

10. In any one of claims 1 to 9, The above first electrode sheet (630) is a cathode sheet, The above second electrode sheet (610) is a positive electrode sheet. Wearable devices.

11. In any one of claims 1 to 10, The above coin cell battery (220): Includes a first electrode tab (522) for electrical connection between the first electrode sheet (630) and the first electrode (524), The above wearable device (101) is A conductive tag (545) comprising a first terminal electrically connected to the part of the first electrode (524) located on the first surface (321) of the case (510) and a second terminal electrically connected to the conductive tab (542) on the first surface (321) of the case (510), The above challenge tag (545) is, A current flows across the first surface (321) of the case (510) in a direction opposite to the direction of the current flowing in the first electrode tab, so that the current flows in the conductive tag (545). Wearable devices.

12. In any one of claims 1 to 11, The magnetic flux on the coil (430) by the magnetic field (685) generated by the current flowing in the conductive tab (542) on the first surface (321) of the case (510) is At least partially canceling out another magnetic flux on the coil (430) by another magnetic field (683) generated by another part of the first electrode sheet (630) extending from the part of the first electrode sheet (630), Wearable devices.

13. In any one of claims 1 to 12, The conductive tab (542) on the first surface (321) of the case (510) is extending in the second rotational direction so as not to overlap with the other part of the first electrode sheet (630) extending from the part of the first electrode sheet (630), Wearable devices.

14. In any one of claims 1 to 13, The conductive tab (542) on the first surface (321) of the case (510) is extending in the second rotational direction so as to overlap at least a portion of the other portion of the first electrode sheet (630) extending from the portion of the first electrode sheet (630), Wearable devices.

15. In any one of claims 1 to 14, A conductive extension tab (543) extending from the conductive tab (542) on the first side (321) of the case (510), and on the third side (323) between the first side (321) and the second side of the case (510), and extending from the conductive extension tab (543) on the third surface (323) of the case (510) and including the first electrode terminal (544) on the second surface (322) of the case (510), Wearable devices.

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