Apparatus for producing internal components and method therefor

Abstract

An apparatus for producing internal components includes: a supply unit configured to supply at least one web along a supply path; a movable frame movable between a proximal position and a distal position, the proximal position being closer to the supply unit than the distal position; at least one winding device mounted on the movable frame and configured to wind at least one web around a winding support to form an inner assembly; a retaining member mounted on the movable frame and movable between a retaining configuration in which the retaining member is configured to retain the internal component wound on the winding support and a disengaged configuration in which the retaining member is configured not to retain the internal component wound on the winding support; and an extraction mechanism configured to at least partially extract the winding support from the inner assembly while the holding member holds the inner assembly.

Description

TECHNICAL FIELD

[0001] The present invention relates to an apparatus for producing an internal assembly and a method for producing an internal assembly thereof.

[0002] Within the scope of the present description and in the appended claims, by "internal assembly" is meant an object formed by at least one web, or an object formed by a plurality of webs superimposed to each other, wound around a winding support to form a spool.

[0003] The present invention finds a preferred, although not exclusive, application in the field of production of electrochemical cells, for example of the cylindrical or prismatic type, for the realization of which the internal assembly is produced in the form of a superimposed layer structure and wound into a spool. BACKGROUND

[0004] Cylindrical electrochemical cells and certain types of prismatic electrochemical cells are formed by two electrode webs, respectively positive and negative, and two separator webs, superimposed to each other in an alternating manner, so that one of the two separator webs is interposed between the two electrode webs, and wound around a winding support to form an internal assembly for the electrolytic cell. Each electrode web is constituted by a conductive sheet coated with a positive or negative electrode active material, respectively. Conversely, each separator web is constituted by a layer of dielectric material.

[0005] Depending on the configuration of the winding support around which the webs are wound, the internal assembly can have various configurations. For example, a winding support shaped like a pin in general leads to the production of an internal assembly having a substantially circular cross-section, for example for the production of cylindrical electrochemical cells. A winding support shaped like a plate leads to the formation of an internal assembly having an elongated or squashed cross-section, for example oval, for the production of prismatic electrochemical cells.

[0006] To form the internal assembly, a plurality of webs is supplied from a supply unit, for example by unwinding the plurality of webs from respective master spools, the plurality of webs is coupled by superimposing the plurality of webs to each other, wound on a winding support, and then the wound webs are cut to form the internal assembly. The webs can be superimposed upstream of the winding support and supplied to the winding support as a single multi-layer web, or supplied individually to the winding support and coupled during winding.

[0007] After the formation of the internal assembly, any finishing operations known per se can be performed. For example, each wound web has a free flap that can be fixed, for example by applying an adhesive patch. Subsequently, the winding support is extracted to release the internal assembly.

[0008] Against the backdrop of the ongoing demand for increased performance and efficiency in production processes, the applicant has made initial observations on how the advance speed of the web relative to the winding support can constitute a significant factor limiting production capacity. This limitation is even more critical when high precision is required in the formation of internal components. Specifically, the applicant has noted that in many applications, such as the production of electrochemical battery cells, it is essential to ensure high precision in the geometry of the winding to guarantee the desired performance of the finished product.

[0009] The applicant has noted that any interruption and resumption of the advance of at least one web results in an undesirable reduction in productivity and increased wear on moving parts subjected to increased acceleration and deceleration in an attempt to compensate for these negative changes in productivity.

[0010] The applicant has therefore discovered that arranging one or more winding supports on a movable frame, moving toward the supply unit during the winding of the web, and moving away from the supply unit when the winding stops (e.g., for cutting the web), allows the web to be supplied from the supply unit at a substantially constant speed, thereby allowing for increased production efficiency.

[0011] The applicant has observed that, in order to implement production cycles for internal components that follow each other, internal components manufactured during the production cycle must be removed from the winding support so that the winding support can be used for a new production cycle.

[0012] The applicant has noted that internal components should be removed from the winding support without compromising the production efficiency of the equipment.

[0013] The applicant has recognized that if internal components can be removed from the winding support during the winding process without damaging or substantially altering the movement followed by the movable frame, then the winding support can be used for a new production cycle without compromising the productivity of the equipment.

[0014] The applicant has discovered that by keeping the internal components in place while the movable frame moves, and by removing the winding support from the internal components while keeping them in place, the winding support can be used in a new production cycle without compromising the production efficiency of the equipment. Summary of the Invention

[0015] Therefore, in its first aspect, the present invention relates to an apparatus for producing internal components, preferably for specifying electrochemical battery cells for producing batteries.

[0016] Preferably, a supply unit is provided, which is configured to supply at least one web along a supply path.

[0017] Preferably, a movable frame is provided that can move between a proximal position and a distal position.

[0018] Preferably, the proximal position is closer to the supply unit than the distal position.

[0019] Preferably, at least one winding device is provided, which is mounted on the movable frame.

[0020] Preferably, the winding device is configured to wind the at least one web around a winding support to form an internal assembly.

[0021] Preferably, a retaining member is provided and mounted on the movable frame.

[0022] Preferably, the retaining member is movable between a retaining configuration and a disengaged configuration.

[0023] Preferably, in a retaining configuration, the retaining member is configured to retain the internal component wound on the winding support.

[0024] Preferably, in the disengaged configuration, the retaining member is configured not to retain the internal component wound on the winding support.

[0025] Preferably, a pull-out mechanism is provided, which is configured to at least partially pull out the winding support from the internal component while the retaining member holds the internal component.

[0026] A second aspect of the invention relates to a method for manufacturing internal components, preferably a method for manufacturing an electrochemical battery cell specified for manufacturing a battery.

[0027] Preferably, at least one web is supplied from the supply unit along the supply path.

[0028] Preferably, a movable frame is provided that can move between a distal position and a proximal position.

[0029] Preferably, the proximal position is closer to the supply unit than the distal position.

[0030] Preferably, the at least one web is provided to be wound around a winding support mounted on the movable frame to form an internal assembly.

[0031] Preferably, the movable frame moves between a distal position and a proximal position while the at least one web is wound around the winding support.

[0032] Preferably, a mechanism is provided to hold the internal components.

[0033] Preferably, the winding support is provided to be extracted from the internal components.

[0034] Preferably, during the movement of the movable frame between the proximal and distal positions, the coiled support is at least partially extracted from the internal components.

[0035] Preferably, the winding support is extracted from the internal component during the process of retaining the internal component.

[0036] Moving the movable frame while supplying at least one web allows for changing the supply speed of at least one web relative to the winding support, without substantially changing the speed of the web in the supply unit.

[0037] The internal components allow the winding support to be pulled out without dragging along with it by friction against at least one web wound on it.

[0038] Maintaining the internal components and removing the winding supports while the movable frame moves avoids stopping the movable frame in order to intentionally release the internal components.

[0039] By arranging the retaining member on a movable frame, the retaining member can retain the internal component by moving between a proximal position and a distal position at the same speed as the internal component.

[0040] The movable frame can move between a proximal position and a distal position. The proximal and distal positions are separated along the longitudinal direction. Terms such as "longitudinal" or "longitudinally" are used to refer to directions parallel to the longitudinal direction or quantities measured parallel to the longitudinal direction.

[0041] "First longitudinal direction" refers to the direct longitudinal direction from the proximal position to the distal position.

[0042] The "second longitudinal direction" refers to the longitudinal direction from the distal position to the proximal position.

[0043] In order to wind at least one web of material around a winding support, the winding device is configured to rotate the winding support about a rotation axis oriented in the transverse direction. The transverse direction is perpendicular to the longitudinal direction.

[0044] Use terms such as "lateral" or "transversely" to refer to or measure quantities that are parallel to or parallel to the transverse direction.

[0045] The term "web" refers to an object having a thickness in a first dimension, a width in a second dimension that is at least one order of magnitude (preferably at least two orders of magnitude) greater than the first dimension, and a length in a third dimension that is at least one order of magnitude (preferably at least two orders of magnitude) greater than the second dimension. Such an object is flexible at least in its third dimension, allowing it to be wound around a winding support. Webs can be made from a single sheet of material or from multiple sheets that have been previously stacked and joined together.

[0046] The present invention may have at least one of the preferred features described below in one or two aspects thereof. Unless otherwise expressly stated, these features may be present individually or in combination with each other in the apparatus and method of the present invention.

[0047] Preferably, the supply unit is configured to supply multiple webs along a corresponding supply path.

[0048] Preferably, the supply unit is configured to supply four webs along corresponding supply paths.

[0049] Preferably, supplying at least one web from the supply unit along the supply path includes supplying multiple webs (preferably four webs) along the corresponding supply path.

[0050] Preferably, the plurality of webs includes a first electrode web, a second electrode web, and two diaphragm webs.

[0051] In an alternative embodiment, the at least one web is a multilayer web comprising multiple stacked layers.

[0052] Preferably, the plurality of layers includes a first electrode layer, a second electrode layer, and two membrane layers.

[0053] Preferably, the supply unit is configured to supply the webs stacked on top of each other onto the winding support.

[0054] Preferably, supplying the plurality of webs includes supplying the webs, which are stacked on top of each other, onto the winding support.

[0055] Preferably, the supply unit is configured to supply the web onto the winding support, the web having two diaphragm webs alternating with the two electrode webs.

[0056] Preferably, supplying the plurality of webs includes: supplying the webs onto the winding support, the webs having two diaphragm webs alternating with the two electrode webs.

[0057] Preferably, a fixed frame is provided.

[0058] Preferably, the supply unit is fixedly mounted on the fixed frame.

[0059] Preferably, the movable frame is movable relative to the fixed frame between a proximal position and a distal position.

[0060] Preferably, the movable frame is slidably movable relative to the fixed frame between a proximal position and a distal position.

[0061] Preferably, the movable frame is movable in the longitudinal direction between a proximal position and a distal position.

[0062] Preferably, the movable frame is movable from a proximal position to a distal position in a first longitudinal direction.

[0063] Preferably, moving the movable frame from the distal position to the proximal position includes moving the movable frame in a first longitudinal direction.

[0064] Preferably, the movable frame can move from the proximal position to the distal position at a speed substantially equal to the supply speed of the at least one web for at least one stroke.

[0065] Preferably, the movable frame can move from a distal position to a proximal position in a second longitudinal direction.

[0066] Preferably, the movable frame is provided to be moved from a distal position toward a proximal position.

[0067] Preferably, moving the movable frame from the distal position to the proximal position includes moving the movable frame in a second longitudinal direction.

[0068] Preferably, the second longitudinal direction is opposite to the first longitudinal direction.

[0069] Preferably, the at least one web is supplied along the supply path by moving the web in a direction having a direct component as a first longitudinal direction.

[0070] Preferably, each web is supplied along the supply path by moving the web in a direction having a direct component as a first longitudinal direction.

[0071] Preferably, the movable frame is movable between a proximal position and a distal position in an alternating manner in a first longitudinal direction and a second longitudinal direction.

[0072] Preferably, the movable frame is provided to move alternately between a proximal position and a distal position in a first longitudinal direction and a second longitudinal direction.

[0073] Preferably, the movement direction of the movable frame is reversed at the proximal position.

[0074] Preferably, a time interval is provided that causes the movable frame to stop at the proximal position for a sustained substantially zero period.

[0075] Preferably, the direction of movement of the movable frame is reversed at the distal position.

[0076] Preferably, a time interval is provided that causes the movable frame to stop at a distal position for a duration that is substantially zero.

[0077] Preferably, the winding support includes a first pin extending in the lateral direction.

[0078] Preferably, the winding support includes a second pin extending in the lateral direction.

[0079] Preferably, one end of the at least one web is positioned at the junction between the first pin and the second pin.

[0080] Preferably, in order to wind the at least one web, the winding support rotates about a winding axis.

[0081] Preferably, the winding axis is transverse.

[0082] Preferably, in order to extract the winding support from the internal component, at least the first pin is moved in the lateral direction.

[0083] Preferably, in order to remove the winding support from the internal component, the first pin and subsequently the second pin move in the lateral direction.

[0084] Preferably, the extraction mechanism is configured to move the first pin and the second pin independently of each other in the lateral direction.

[0085] Preferably, removing the winding support from the internal component includes: first moving a first pin in the lateral direction and then moving a second pin in the lateral direction.

[0086] Preferably, the movable frame is configured to move from a distal position toward a proximal position while winding the at least one web around the winding support.

[0087] Preferably, the movable frame is provided to move from a distal position toward a proximal position while the at least one web is wound around the winding support.

[0088] Preferably, the extraction mechanism is configured to extract the wound support from the internal component while the movable frame moves toward a distal position in a first longitudinal direction and / or while the movable frame is substantially at a distal position and / or while the movable frame moves toward a proximal position in a second longitudinal direction.

[0089] Preferably, the extraction mechanism is configured to begin extracting the coiled support from the internal components when the movable frame moves from the proximal position to the distal position at a distance less than 70%, preferably less than 40%, and more preferably less than 30% of the distance between the distal and proximal positions.

[0090] Preferably, the extraction mechanism is configured to complete the extraction of the coiled support from the internal component when the movable frame is in the distal position.

[0091] Preferably, the extraction mechanism is configured to complete the extraction of the winding support from the internal component when the movable frame is at a distance less than 30%, preferably less than 20%, and more preferably less than 10% of the distance between the far end and the near end.

[0092] Preferably, the winding support is provided to be withdrawn from the internal component while the movable frame moves in the first longitudinal direction and / or while the movable frame is at the distal position and / or while the movable frame moves from the distal position toward the proximal position.

[0093] Preferably, the method is provided that when the movable frame moves from the proximal position to the distal position at a distance less than 70%, preferably less than 40%, and more preferably less than 30% of the distance between the distal and proximal positions, the winding support is withdrawn from the internal component.

[0094] Preferably, removing the coiled support from the internal component includes: removing the coiled support from the internal component when the movable frame is substantially at the distal position.

[0095] Preferably, the winding support is withdrawn from the internal component when the movable frame is at a distance less than 30%, preferably less than 20%, and more preferably less than 10% of the distance between the far and near positions.

[0096] Preferably, the retaining member is clamp-shaped.

[0097] Preferably, holding the internal component includes clamping the internal component.

[0098] Preferably, the internal components are held in place by means of the holding member.

[0099] Preferably, retaining the internal component includes moving the retaining member from a disengaged configuration to a retaining configuration.

[0100] Preferably, the retaining member includes a first arm hinged to the movable frame and includes a corresponding gripping portion.

[0101] Preferably, the retaining member includes a second arm hinged to the movable frame and includes a corresponding gripping portion.

[0102] Preferably, at least one of the first and second arms is rotatable to move the retaining member from the disengagement configuration to the retaining configuration by bringing the respective gripping portions closer to each other.

[0103] Preferably, both the first and second arms are rotatable to move the retaining member from the disengaged configuration to the retaining configuration.

[0104] Preferably, at least one of the first and second arms is rotatable to move the retaining member from the retaining configuration to the disengaging configuration by moving the respective gripping portions away from each other.

[0105] Preferably, both the first and second arms are rotatable to move the retaining member from the retaining configuration to the disengaging configuration.

[0106] Preferably, holding the internal component includes bringing the respective gripping portions of the holding member closer to each other until they contact the outer surface of the internal component.

[0107] Preferably, bringing the respective gripping portions closer to each other includes rotating a first arm comprising one of the gripping portions and / or rotating a second arm comprising the other of the gripping portions.

[0108] Preferably, rotating the first arm and rotating the second arm includes rotating the first arm and the second arm in opposite directions to each other.

[0109] Preferably, the first arm is rotatable about a first rotation axis.

[0110] Preferably, the first arm includes a radial portion that extends radially relative to the first axis of rotation.

[0111] Preferably, the first arm includes a laterally extending lateral portion.

[0112] Preferably, the first arm includes an arcuate portion that extends circumferentially relative to the first axis of rotation.

[0113] Preferably, the first arm extends from the first end to the second end.

[0114] Preferably, the first arm is hinged to the movable frame at a first end.

[0115] Preferably, the radial portion extends from the first end.

[0116] Preferably, the gripping portion of the first arm is located at the second end.

[0117] Preferably, the bow-shaped portion extends from the second end.

[0118] Preferably, the lateral portion extends from the radial portion to the arcuate portion.

[0119] Preferably, the second arm is rotatable about a second rotation axis.

[0120] Preferably, the second arm includes a radial portion that extends radially relative to the second axis of rotation.

[0121] Preferably, the second arm includes a laterally extending lateral portion.

[0122] Preferably, the second arm includes an arcuate portion that extends circumferentially relative to the second axis of rotation.

[0123] Preferably, the second arm extends from the first end to the second end.

[0124] Preferably, the second arm is hinged to the movable frame at the first end.

[0125] Preferably, the radial portion extends from the first end.

[0126] Preferably, the gripping portion of the second arm is located at the second end.

[0127] Preferably, the bow-shaped portion extends from the second end.

[0128] Preferably, the lateral portion extends from the radial portion to the arcuate portion.

[0129] Preferably, the gripping portion includes a concave surface that is opposite in shape to the outer surface of the internal component.

[0130] Preferably, the internal components are held in place as the movable frame moves from the proximal position to the distal position.

[0131] Preferably, the internal components are held in place as the movable frame moves from the proximal position to the distal position.

[0132] Preferably, the winding support is withdrawn from the internal components as the movable frame moves from the proximal position to the distal position.

[0133] Preferably, the internal component is provided for release.

[0134] Preferably, releasing the internal component includes moving the retaining member from a retaining configuration to a disengaging configuration.

[0135] Preferably, the internal component is provided to be released from the retaining member.

[0136] Preferably, the internal components are released while the movable frame moves from a distal position to a proximal position.

[0137] In one embodiment, the removal of the coiled support from the internal components ends as the movable frame moves from a proximal position toward a distal position.

[0138] In one embodiment, the removal of the coiled support from the internal components ends as the movable frame moves from a proximal position toward a distal position.

[0139] In one embodiment, the removal of the coiled support from the internal components ends as the movable frame moves from a distal position toward a proximal position.

[0140] Preferably, the internal component is released after the winding support has been completely removed from the internal component.

[0141] Preferably, a movable support member is provided and mounted on the movable frame.

[0142] Preferably, the at least one winding device is mounted on the movable support.

[0143] Preferably, the movable support is configured to move the at least one winding device relative to the movable frame between a winding position and an unloading position.

[0144] Preferably, at least two winding devices are provided on the movable support.

[0145] Preferably, at least three winding devices are provided on the movable support.

[0146] Preferably, when one of the winding devices is in the winding position, the other of the winding devices is in the unloading position.

[0147] Preferably, the movable support is configured to allow the at least one winding device to move relative to the movable frame between a winding position, a trimming position, and an unloading position.

[0148] Preferably, when one of the winding devices is in the winding position, the other of the winding devices is in the trimming position.

[0149] Preferably, the at least one winding device is configured to wind the at least one web onto a corresponding winding support in the winding position.

[0150] Preferably, the extraction mechanism is configured to extract the winding support from the internal component in the unloading position.

[0151] Preferably, the retaining member is configured to hold the internal component in the unloading position.

[0152] Preferably, the device is configured to perform a trimming operation on the internal components in the trimming position.

[0153] Preferably, the device is configured to cut the at least one web in a trimming position.

[0154] Preferably, an unloading component is provided.

[0155] Preferably, the unloading component is mounted on the fixed frame.

[0156] Preferably, the unloading component is directly mounted on the fixed frame.

[0157] Preferably, the unloading component is mounted independently on the fixed frame relative to the movable frame.

[0158] Preferably, the unloading member is configured to pick up the internal component from the retaining member.

[0159] Therefore, the unloading device allows internal components to be picked up without stopping the movable frame.

[0160] Preferably, the unloading component includes a gripping device configured to grip the internal component.

[0161] Preferably, the gripping device is configured to grip the internal component at least partially while the internal component is held by the retaining member.

[0162] Preferably, the retaining member is configured to release the internal component after the gripping device has gripped the internal component.

[0163] Preferably, the retaining member is configured to release the internal component after the winding support has been withdrawn from the internal component.

[0164] Preferably, the retaining member is configured to release the internal components as the movable frame moves from a distal position to a proximal position.

[0165] Preferably, the retaining member is configured to release the internal components when the movable frame is at a distance less than 30%, preferably less than 20%, more preferably less than 10%, or even more preferably less than 5% of the distance between the far and near positions.

[0166] Preferably, the unloading component is configured to move the gripping device in a manner synchronized with the movable frame.

[0167] Preferably, the unloading member is configured to move the gripping device at substantially the same speed and in the same direction as the movable frame while the gripping device grips the internal component, until the holding member releases the internal component.

[0168] Preferably, the unloading component is configured to move the internal components to a predetermined collection area.

[0169] Preferably, the method of unloading the internal component is provided.

[0170] Preferably, the internal components are unloaded by means of the unloading component.

[0171] Preferably, unloading the internal component includes picking up the internal component from the retaining member.

[0172] Preferably, unloading the internal component includes: gripping the internal component with a gripping device.

[0173] Preferably, the internal component is grasped while it is being held by the retaining member.

[0174] Preferably, the internal component is released after the gripping device has gripped the internal component.

[0175] Preferably, the internal components are released when the movable frame is at a distance less than 30%, preferably less than 20%, more preferably less than 10%, or even more preferably less than 5% of the distance between the far and near positions.

[0176] Preferably, unloading the internal components includes moving the gripping device in a manner synchronized with the movable frame.

[0177] Preferably, unloading the internal component includes: while the gripping device grasps the internal component, moving the gripping device at substantially the same speed and in the same direction as the movable frame until the retaining member releases the internal component.

[0178] Preferably, unloading the internal component includes moving the internal component to a predetermined collection area, which is separated from the movable frame. Attached Figure Description

[0179] Further features and advantages of the invention will become clearer from the following detailed description of preferred embodiments of the invention, provided with reference to the accompanying drawings and through indicative and non-limiting examples, in which:

[0180] - Figure 1 A schematic diagram of an apparatus for producing internal components according to the present invention is shown;

[0181] - Figures 2 to 6 A perspective view of an apparatus according to the invention for producing internal components is shown in different operating configurations, wherein some elements are removed to highlight others;

[0182] - Figures 7 to 11 It shows the different operating configurations. Figure 1 A detailed view of the device's details;

[0183] The representations in the accompanying drawings do not necessarily need to be interpreted to scale, nor do they necessarily adhere to the proportions between the individual components. Detailed Implementation

[0184] Figure 1 The diagram schematically illustrates equipment used for producing internal components, which is generally indicated by reference numeral 100.

[0185] Apparatus 100 is specified for producing an internal component 1 consisting of at least one wound web. In the preferred example shown and described in detail herein, apparatus 100 is specified for producing an internal component 1 for manufacturing an electrochemical battery cell. However, as stated above, the invention can be applied to other types of internal components and is not necessarily specified for the production of electrochemical battery cells.

[0186] In a preferred embodiment, such as Figure 1 As illustrated, component 1 is made of multiple webs N1, N2, N3, and N4. For example, in the context of internal component 1 being used to fabricate an electrochemical battery cell, the webs can be formed from electrode webs N1 and N3 and separator webs N2 and N4. These webs N1, N2, N3, and N4 are suitably stacked to achieve a layered structure, wherein a first electrode web (e.g., a precursor to the positive electrode of the electrochemical battery cell), a first separator web, a second electrode web (e.g., a precursor to the negative electrode of the electrochemical battery cell), and a second separator web alternate with each other. The order between the first and second electrode webs is provided for illustrative purposes only, and an order reversed from the previously indicated order can also be provided.

[0187] Equipment 100 includes a supply unit 110, in Figure 1The diagram is schematically shown. The supply unit 110 is configured to supply webs N1, N2, N3, and N4 along corresponding supply paths P1, P2, P3, and P4. In a preferred embodiment, the supply unit 110 is fixedly mounted on the mounting frame 101 of the device 100.

[0188] Webs N1, N2, N3, and N4 move along their respective supply paths P1, P2, P3, and P4 in their respective supply directions, each having a longitudinal component pointing in the same direction.

[0189] In the illustrated example, the supply unit 110 includes a dispensing device 111 for webs N1, N2, N3, and N4. This dispensing device 111 may be a reel support configured to unwind the webs N1, N2, N3, and N4 from the large reels B1, B2, B3, and B4 and subsequently supply them during operation of the device 100. The dispensing device 111 may also include corresponding actuators (not shown) adapted to rotate the reels B1, B2, B3, and B4 about their respective axes of rotation.

[0190] Without loss of generality, further processing and / or movement steps of webs N1, N2, N3, and N4 can be set along the corresponding supply paths P1, P2, P3, and P4 between unwinding and supplying.

[0191] Although this instruction manual and Figure 1 In specific cases involving supply unit 110, which is configured to unwind and supply four types of webs N1, N2, N3, and N4 suitable for producing electrolytic cell units, the supply unit may be configured to supply even a single web along a corresponding supply path or multiple webs in numbers other than four along a corresponding supply path. In other embodiments, the webs are further not limited to those used for producing electrolytic cell units and may be materials different from the electrode webs and separator webs described above.

[0192] As this instruction continues, refer to Figure 1 When the four webs N1, N2, N3, N4 of the embodiments are used to describe the features and components of the device 100, without loss of generality, the feature or component can be adapted to perform the same function described even when the internal component 1 is made of a single web or of a different number of webs.

[0193] The device 100 includes a movable frame 120. The movable frame 120 is movable relative to the supply unit 110. Specifically, the movable frame 120 is slidably mounted relative to the fixed frame 101 of the device 100. The movable frame 120 is movable relative to the supply unit 110 between a proximal position and a distal position. The proximal and distal positions are longitudinally spaced. In the proximal position, the movable frame 120 is closer to the supply unit 110 than in the distal position.

[0194] In the illustrated preferred embodiment, the movable frame 120 is configured to move in a straight line between a proximal position and a distal position. The movable frame 120 is configured to move alternately from the proximal position to the distal position and then back to the proximal position, preferably substantially continuously. The movable frame 120 can move from the proximal position to the distal position in a first longitudinal direction D1 away from the supply unit 110. Webpers N1, N2, N3, and N4 point along the longitudinal components of the supply directions of their respective supply paths P1, P2, P3, and P4 in the first longitudinal direction D1. The speed at which the movable frame moves from the proximal position to the distal position is approximately equal to the supply speed of the webpers N1, N2, N3, and N4.

[0195] The movable frame 120 can also be moved from a far end position to a near end position in a second longitudinal direction D2 pointing toward the supply unit 110. The second longitudinal direction D2 is opposite to the corresponding longitudinal components of the webs N1, N2, N3, N4 along the supply directions of the corresponding supply paths P1, P2, P3, P4.

[0196] A sliding guide (not shown) may be disposed between the movable frame 120 and the fixed frame 101 to guide the sliding of the movable frame 120 relative to the fixed frame. The device 100 may also be provided with one or more actuators (not shown) to move the movable frame 120 between a proximal position and a distal position.

[0197] The movable support 125 is mounted on the movable frame 120. Figures 2-6 The diagram shows the movable support 125, and for simplicity, it is shown schematically. Figure 1 The movable support element is omitted. In a preferred embodiment, the movable support element 125 includes a wheel 126 rotatably mounted on the movable frame 120. The wheel 126 is rotatable about a rotation axis R. The rotation axis R is laterally oriented. An actuator (not shown) is configured to rotatably actuate the movable support element 125 relative to the movable frame 120.

[0198] The device 100 includes at least one winding device 130 mounted on a movable frame 120. Preferably, the device 100 includes a plurality of winding devices 130. Figures 2-10In the illustrated embodiment, device 100 includes three winding devices 130. In embodiments not illustrated, device 100 may include a single winding device 130 or a plurality of winding devices 130 in addition to three.

[0199] Preferably, the winding device 130 is mounted on a movable support 125. The movable support 125 is configured to allow each winding device 130 to move relative to the movable frame 120 between a winding position, a trimming position, and an unloading section. Figures 2-10 In the illustrated embodiment, the winding position, trimming position, and unloading portion are arranged along a circular trajectory on the movable frame 120 and spaced apart from each other at an angle. Preferably, the winding position, trimming position, and unloading portion are equidistant from each other at an angle.

[0200] The movable support 125 is configured to allow each winding device 130 to move continuously from a winding position to a trimming position, from a trimming position to an unloading position, and from an unloading position to a winding position. In the illustrated embodiment, the movable support 125 is configured to maintain each winding device 130 fixed or substantially fixed relative to the movable frame 120 while the movable frame 120 moves from a proximal position to a distal position and from a distal position to a proximal position.

[0201] exist Figures 2-10 In the illustrated embodiment, the movable support 125 is configured to move each winding device 130 between two consecutive positions (between the winding position, the trimming position, and the unloading section) while the movable frame 120 moves from a proximal position to a distal position. Preferably, the movable support 125 is configured to complete the movement of each winding device 130 between the two consecutive positions before the movable frame 120 has reached the distal position. In a preferred embodiment, the movable support 125 is configured to move each winding device 130 between the two consecutive positions by rotating it about a predetermined angle about the rotation axis R. In the illustrated embodiment, the predetermined angle is equal to the angle (e.g., 120°) between the distances of the two consecutive winding devices 130 from the rotation axis R.

[0202] The winding device 130 can move relative to the fixed frame 101 along a movement path determined by the sum of the movement of the movable frame 120 between the distal and proximal positions and the movement of the support frame 125 between the winding position, the trimming position and the unloading section.

[0203] Each winding device 130 includes a winding support 135 and a rotary actuator 136, the rotary actuator 136 being configured to rotate the winding support 135 about a transverse winding axis A.

[0204] Each winding support 135 is configured to combine the end of at least one of the webs N1, N2, N3, N4, and rotate about the winding axis A to wind the webs N1, N2, N3, N4 and form the inner assembly 1.

[0205] Figure 11 The winding support 135, as shown in the detailed illustration, includes a laterally extending first pin 137 and a laterally extending second pin 138 parallel to the first pin 137. The winding support 135 is configured to engage at a junction 139 between the first pin 137 and the second pin 138 and retain at least one of the webs N1, N2, N3, and N4.

[0206] The extraction mechanism 140 is configured to extract the winding support 135 from the internal assembly 1 formed around the winding support 135. The extraction mechanism 140 is configured to allow the first pin 137 and the second pin 138 to move laterally independently. The extraction mechanism 140 is configured to move the first pin 137 and the second pin 138 from corresponding operating positions to corresponding non-operating positions. In the operating position, the first pin 137 and the second pin 138 are configured to engage at least one of the webs N1, N2, N3, and N4 to form the internal assembly 1. In the non-operating position, the first pin 137 and the second pin 138 are configured not to engage the webs N1, N2, N3, and N4. Preferably, the winding support 135 has a tapered shape to facilitate its extraction. At least one of the first pin 137 and the second pin 138 has a tapered shape. Preferably, the junction 139 extends along a plane inclined relative to the lateral direction to facilitate the extraction of the winding support 135. To facilitate the removal of the winding support 135, the extraction mechanism 140 is configured to initiate the extraction of the first pin 137 and subsequently initiate the extraction of the second pin 138 after a predetermined time interval.

[0207] In embodiments not shown, the winding support 135 may have different shapes known per se. For example, when the device 100 is configured to manufacture prismatic electrolytic cell units, the winding support 135 may have a plate-like shape. In embodiments not shown, the winding support 135 may be integral.

[0208] While holding at least one of the webs N1, N2, N3, and N4, the inner assembly 1 is formed around the winding support 135 in a manner known per se by rotating the winding support 135 about the winding axis. At least one of the held webs is inserted into the junction 139 between the first pin 137 and the second pin 138.

[0209] Each winding device 130 is configured to receive webs N1, N2, N3, N4 in a corresponding winding position. A supply member (not shown) is configured to supply webs N1, N2, N3, N4 to the winding device 130 in a manner known per se, such that a winding support 135 accommodates at least one of webs N1, N2, N3, N4 between a first pin 137 and a second pin 138.

[0210] The winding device 130 is configured to move the movable frame 120 from the far end position toward the near end position and to wind the webs N1, N2, N3, and N4 around the winding support 135 while the winding device 130 is in the winding position.

[0211] As the webs N1, N2, N3, and N4 are wound around the winding support 135, the internal assembly 1 is formed around the winding support 135 and is also incorporated into the portions of the webs N1, N2, N3, and N4 placed along the respective supply paths P1, P2, P3, and P4 and originating from the supply unit 110. The support frame 125 is configured to move the winding device 130 (having the internal assembly 1 formed around the respective winding support 135) from a winding position to a trimming position, preferably simultaneously moving the movable frame 120 from a proximal position toward a distal position.

[0212] A cutting member (not shown) is configured to cut the webs N1, N2, N3, and N4 in a manner known per se to separate the inner component 1 from portions of the webs N1, N2, N3, and N4 placed along their respective supply paths P1, P2, P3, and P4. In the illustrated embodiment, the cutting of the webs N1, N2, N3, and N4 occurs when the winding device 130 around which the inner component 1 is wound is in a trimming position.

[0213] Other trimming components (not shown) known per se may be provided to perform trimming operations on the inner assembly 1 while the corresponding winding device 135 is in the trimming position. For example, one end of the web portion constituting the inner assembly 1 may be secured by applying an adhesive patch to the outer surface of the inner assembly 1.

[0214] The device 100 is configured to perform cutting and trimming of the internal components 1 while the movable frame 120 is moved from a proximal position to a distal position and / or subsequently from a distal position to a proximal position.

[0215] After the trimming operation, the winding support 135, which has an internal component 1 formed around the corresponding winding device 130, can be moved from the trimming position to the unloading position, and preferably the movable frame 120 can be moved from the proximal position to the distal position at the same time.

[0216] The retaining member 150 is mounted on the movable frame 120. The retaining member 150 is configured to retain the internal assembly 1 while the corresponding wound support 135 is withdrawn by means of the withdrawal mechanism 140. In the illustrated embodiment, the retaining member 150 is clamp-shaped.

[0217] The retaining member 150 includes a first arm 151 hinged to a mounting support 152 fixedly mounted on a movable frame 120. The mounting support 152 is mounted on the movable frame near the movable support 125. The first arm 151 is rotatable relative to the movable frame 120 about a first lateral axis of rotation R1. Preferably, the first arm 151 is manufactured as a single block without joints. The first arm 151 extends from a first end 153 to a second end 154. At the first end 153, the first arm 151 is hinged to the mounting support 152. At the second end 154, the first arm 151 includes a gripping portion 155 configured to contact the inner component 1. The gripping portion 155 includes a concave surface 156. The concave surface 156 is shaped opposite to the cylindrical outer surface portion of the inner component 1.

[0218] The first arm 151 includes a radial portion 157 extending radially from a first end 153 relative to a first axis of rotation R1. The first arm 151 also includes an arcuate portion 158 extending substantially circumferentially from the gripping portion 155 relative to the first axis of rotation R1. The first arm 151 also includes a lateral portion 159 extending substantially laterally between the arcuate portion 158 and the radial portion 157 to laterally offset the gripping portion 155 from the radial portion 157.

[0219] The retaining member 150 includes a second arm 161 hinged to a mounting support 152. The second arm 161 is rotatable relative to the movable frame 120 about a second lateral axis of rotation R2. Preferably, the second arm 161 is fabricated as a single block without joints. The second arm 161 extends from a first end 163 to a second end 164. At the first end 163, the second arm 161 is hinged to the mounting support 152, preferably adjacent to the first end 153 of the first arm 151. At the second end 164, the second arm 161 includes a gripping portion 165 configured to contact the internal component 1. The gripping portion 165 includes a concave surface 166. The concave surface 166 is shaped opposite to the cylindrical outer surface portion of the internal component 1. The concave surface 166 of the gripping portion 165 of the second arm 161 faces the concave surface 156 of the gripping portion 155 of the first arm 151.

[0220] The second arm 161 includes a radial portion 167 extending radially from the first end 163 relative to the second axis of rotation R2. The second arm 161 also includes an arcuate portion 168 extending substantially circumferentially from the gripping portion 165 relative to the second axis of rotation R2. The second arm 161 also includes a lateral portion 169 extending substantially laterally between the arcuate portion 168 and the radial portion 167 to laterally offset the gripping portion 155 from the radial portion 157.

[0221] The retaining member 150 is movable between a retaining configuration and a disengaged configuration. The retaining member 150 can move between the retaining configuration and the disengaged configuration by means of rotation of the first arm 151 about a first rotation axis R1 and rotation of the second arm 161 about a second rotation axis R2 in the opposite direction. In the illustrated embodiment, the first arm 151 rotates clockwise from the retaining configuration to the disengaged configuration and counterclockwise from the disengaged configuration to the retaining configuration. The second arm 161 rotates counterclockwise from the retaining configuration to the disengaged configuration and clockwise from the disengaged configuration to the retaining configuration.

[0222] In the holding configuration, the gripping portions 155 of the first arm 151 and 165 of the second arm 161 contact the inner component 1, which is wound around the winding support 135 of the winding device 130 in the unloading position, on opposite sides of the inner component 1. The holding member 150 is configured to press the gripping portions 155 and 165 against the inner component 1 with a force sufficient to hold the inner component 1 in a fixed position relative to the movable support 120 while the winding support 135 is being withdrawn from the inner component 1.

[0223] In the disengaged configuration, the gripping portions 155 of the first arm 151 and the gripping portions 165 of the second arm 161 are more spaced apart from each other than in the holding configuration, and are configured to not hold the inner component 1 of the disengaged winding device 130 wound on the winding support 135 (when the winding device 130 is in the unloading position or can be moved from the trimming position to the unloading position).

[0224] The retaining member 150 is configured to maintain the configuration movement while the movable frame 120 moves from the proximal position to the distal position, to grip the inner component 1 wound around the winding support 135 of the winding device 130 in the unloading position. The extraction mechanism 140 is configured to extract the winding support 135 from the inner component 1 while the inner component 1 is held by the retaining member 150. This can occur before the movable frame 120 reaches the distal position, when the movable frame 120 is in the distal position, or when the movable frame 120 moves from the distal position to the proximal position. The extraction of the winding support 135 begins when the movable frame 120 moves from the proximal position to the distal position and can end while the movable frame 120 is still moving from the proximal position to the distal position, when the movable frame is substantially in the distal position, or when the movable frame 120 has moved from the distal position to the proximal position.

[0225] The device 100 includes an unloading component 170. The unloading component 170 is mounted on a fixed frame 101. The unloading component 170 is mounted on the side opposite to the supply unit 110 relative to a movable frame 120. The movable frame 120 moves closer to the unloading component 170 by moving from a proximal position to a distal position, and moves away from the unloading component 170 by moving from a distal position to a proximal position.

[0226] The unloading member 170 includes a hinged robotic arm 171. The hinged arm 171 extends from a first end 172 to a second end 173, and is fixedly mounted to the fixed frame 101 at the first end 172. At the second end 173, the unloading member 170 includes a gripping device 175. The gripping device 175 can move longitudinally via the hinge of the hinged arm 171. The unloading member 170 is configured to grip the internal component 1 by means of the gripping device 175 while the internal component 1 is held by the holding member 150. The holding member 150 is configured to move from a holding configuration to a disengaged configuration after the unloading member 170 has gripped the internal component 1 (e.g., when the movable frame is substantially in a distal position, or when the movable frame 120 moves from a distal position to a proximal position).

[0227] The gripping device 175 is configured to grip the internal component 1 while it is held by the retaining member 150. The gripping device 175 is configured to engage portions of the outer surface of the internal component that are not engaged by the gripping portions 155, 165 of the retaining member 150. In the illustrated embodiment, the gripping device 175 is configured to engage corresponding perimeter bands of the outer surface of the internal component 1. The gripping portions 155, 165 of the retaining member 150 are configured to engage central bands of the outer surface of the internal component 1 arranged between the perimeter bands.

[0228] While the gripping device 175 grasps the internal component 1 and before the holding device 150 releases the internal component 1, the unloading member 170 is configured to move the gripping device 175 to hold it at the internal component 1 and to keep it moving at substantially the same speed and in the same direction as the internal component 1 (and therefore at the same speed and in the same direction as the movable frame 120). In the illustrated embodiment, this movement is achieved by the hinge of the articulated arm 171.

[0229] After the internal component 1 is released from the holding member 150, the unloading member 170 is configured to move the internal component 1 toward a predetermined unloading area and release the internal component 1 in the unloading area.

[0230] To produce the aforementioned type of internal component 1, a movable frame 120 is moved from a distal position to a proximal position using device 100 to perform a first stroke of the movable frame 120. Simultaneously with the movement of the movable frame 120 from the distal to the proximal position, at least one web (preferably multiple webs N1, N2, N3, N4) is supplied to the winding support 135. While the movable frame 120 moves from the distal to the proximal position, the multiple webs N1, N2, N3, N4 are wound around the winding support 135, causing the winding support 135 to rotate about the winding axis A. Once winding is complete, the rotation of the winding support 135 stops.

[0231] Subsequently, the movable frame 120 moves from the proximal position to the distal position to perform a second stroke of the movable frame 120. Preferably, the dwell time of the movable frame 120 in the proximal position is substantially zero.

[0232] During the second stroke, the webs N1, N2, N3, and N4 are cut to separate the web portions wound around the winding support 135 from the web portions along the supply paths P1, P2, P3, and P4 to form the inner assembly 1.

[0233] Subsequently, the movable frame 120 moves from the distal position to the proximal position to perform a third stroke of the movable frame 120 similar to the first stroke. Preferably, the dwell time of the movable frame 120 in the distal position is substantially zero.

[0234] As the movable frame 120 moves from the proximal position to the distal position, the winding device 130, around which the webs N1, N2, N3, and N4 have been wound during the first stroke, moves from the winding position to the trimming position. This movement preferably ends before the movable frame 120 reaches the distal position.

[0235] During the third stroke of the movable frame 120, webs N1, N2, N3, and N4 are wound onto another winding support 135 to begin production of another internal component (not shown), in a manner similar to that described for internal component 1. The production of this other internal component occurs partially simultaneously with the production described for internal component 1, with a time difference equal to the time required for the movable frame 120 to perform strokes from the proximal position to the distal position and from the distal position to the proximal position.

[0236] During the second and / or third strokes of the movable frame 120, a trimming operation is performed on the inner component 1 wound around the winding support 135 of the winding device 130 in the trimming position.

[0237] Subsequently, the movable frame 120 moves from the proximal position to the distal position to perform the fourth stroke of the movable frame 120, such as... Figures 2 to 4 As shown. During the fourth stroke, component 1 is gripped by retaining member 150 and held by retaining member 150. To hold the inner component 1, retaining member 150 moves from a disengaged engagement configuration to a holding configuration, as shown. Figure 3 , Figure 7 and Figure 8 As shown in the image.

[0238] As the movable frame 120 moves from the proximal position to the distal position, the winding device 130, around which the webs N1, N2, N3, and N4 have been wound during the first stroke, moves from the trimming position to the unloading position. Figure 2 , Figure 7 and Figure 8 As shown in the diagram. This movement preferably ends before the movable frame 120 reaches the distal position, and occurs from the winding position to the ending position in a manner similar to that described above.

[0239] As the movable frame 120 moves from the proximal position to the distal position, and while component 1 is held by the retaining member 150, the coiled support 135 is pulled out from the inner component 1, as... Figure 4 and Figure 9 As shown in the image.

[0240] Subsequently, the movable frame 120 moves from the distal position to the proximal position to perform the fifth stroke of the movable frame 120, similar to the first and third strokes, as... Figure 5 and Figure 6 As shown in the diagram. Preferably, the stopping time of the movable frame 120 at the distal position is substantially zero. The withdrawal of the coiled support 135 from the inner component 1 may end before the end of the fourth stroke, substantially at or near the distal position, or at the beginning of the fifth stroke.

[0241] While the internal component 1 is held by the holding member 150, the internal component 1 is grasped by means of the unloading member 170, such as Figure 5 and Figure 9 As shown. This can occur before the end of the fourth stroke. The internal component 1 is grasped by means of the gripping device 175. In order to grasp the internal component 1, the gripping device 175 is brought to the internal component 1 and held at the internal component 1 for the necessary time. In order to hold the gripping device 175 at the internal component 1, the gripping device moves by means of the articulated arm 171 at substantially the same speed and in the same direction as the internal component 1 (and therefore the movable frame 120).

[0242] After the winding support 135 is pulled out from the inner component 1, and after the gripping device 175 has gripped the inner component 1, the inner component 1 is released from the holding member 150, as follows: Figure 6 and Figure 10 As shown in the diagram. In order to release the internal component 1 from the retaining member 150, preferably during the fifth stroke of the movable frame 120, the retaining member 150 moves from the retaining configuration to the disengaging configuration.

[0243] After the internal component 1 is released from the holding member 150, the internal component 1 held by the gripping device 175 moves to the unloading area by means of the unloading member 170, and the internal component 1 is released by the gripping device 175.

Claims

1. An apparatus (100) for producing internal components, characterized in that, include: A supply unit (110) is configured to supply at least one web (N1; N2; N3; N4) along a supply path (P1; P2; P3; P4). A movable frame (120) is movable between a proximal position and a distal position, the proximal position being closer to the supply unit (110) than the distal position. At least one winding device (130) is mounted on the movable frame (120) and configured to wind the at least one web (N1; N2; N3; N4) around the winding support (135) to form an internal assembly (1). A retaining member (150) is mounted on the movable frame (120) and is movable between a retaining configuration and a disengaging configuration, wherein in the retaining configuration the retaining member (150) is configured to retain the inner component (1) wound on the winding support (135), and in the disengaging configuration the retaining member (150) is configured not to retain the inner component (1) wound on the winding support (135). The extraction mechanism (140) is configured to at least partially extract the winding support (135) from the internal component (1) while the retaining member (150) retains the internal component (1).

2. The device (100) according to claim 1, characterized in that: The retaining member (150) includes a first arm (151) and a second arm (161), the first arm (151) being hinged to the movable frame (120) and including a corresponding gripping portion (155), and the second arm (161) being hinged to the movable frame (120) and including a corresponding gripping portion (165), wherein: At least one of the first arm (151) and the second arm (161) is rotatable to move the retaining member (150) from the disengagement configuration to the retaining configuration by bringing the respective gripping portions (155, 165) closer to each other; At least one of the first arm (151) and the second arm (161) is rotatable to move the retaining member (150) from the retaining configuration to the disengaging configuration by moving the respective gripping portions (155, 165) away from each other.

3. The device (100) according to claim 1 or 2, characterized in that, It also includes an unloading member (170) mounted on a fixed frame (101), the movable frame (120) being movable relative to the fixed frame (101) between the proximal and distal positions, wherein the unloading member (170) is configured to pick up the internal component (1) from the retaining member (150).

4. The device (100) according to claim 3, characterized in that: The unloading member (170) includes a gripping device (175) configured to grip the internal component (1) at least partially while the internal component (1) is held by the holding member (150). The retaining member (150) is configured to release the internal component (1) after the gripping device (175) has gripped the internal component (1).

5. The device (100) according to claim 4, characterized in that, The unloading member (170) is configured to move the gripping device (175) at the same speed and in the same direction as the movable frame (120) when the gripping device (175) grips the internal component (1) until the retaining member (150) releases the internal component (1).

6. The device (100) according to claim 1 or 2, characterized in that, The winding support (135) includes at least one first pin (137) extending in the lateral direction (A), and the extraction mechanism (140) is configured to move the at least one first pin (137) in the lateral direction.

7. The device (100) according to claim 1 or 2, characterized in that, The extraction mechanism (140) is configured to begin extracting the coiled support (135) from the internal component (1) when the movable frame (120) moves from the proximal position to the distal position at a distance less than 70% of the distance between the distal and proximal positions.

8. The device (100) according to claim 1 or 2, characterized in that, Includes a movable support (125) mounted on the movable frame (120), and the at least one winding device (130) mounted on the movable support (125); The movable support (125) is configured to move the at least one winding device (130) relative to the movable frame (120) between a winding position and an unloading position. The at least one winding device (130) is configured to wind the at least one web (N1; N2; N3; N4) around the corresponding winding support (135) at the winding position of the corresponding winding device (130); The extraction mechanism (140) is configured to extract the winding support (135) from the internal component (1) in the unloading position of the corresponding winding device (130); and The holding device (150) is configured to hold the internal component (1) in the unloading position of the corresponding winding device (130).

9. The device (100) according to claim 1 or 2, characterized in that, The internal components are electrochemical battery cells used to produce batteries.

10. A method for producing an internal component (1), characterized in that, include: At least one web (N1; N2; N3; N4) is supplied from the supply unit (110) along the supply path (P1; P2; P3; P4). While the at least one web (N1; N2; N3; N4) is wound around the winding support (135) mounted on the movable frame (120), the movable frame (120) is moved between a distal position and a proximal position to form an internal assembly (1). Maintain the internal component (1); The winding support (135) is extracted from the internal component (1), wherein the extraction of the winding support (135) is performed at least partially from the internal component (1) during the movement of the movable frame (120) between the proximal and distal positions and during the holding of the internal component (1).

11. The method according to claim 10, characterized in that, While the movable frame (120) moves from the proximal position toward the distal position, the internal component (1) is held in place and the coiled support (135) is at least partially withdrawn from the internal component (1).

12. The method according to claim 10 or 11, characterized in that, The internal component (1) is held in place by means of a retaining member (150) mounted on the movable frame (120).

13. The method according to claim 12, characterized in that, This includes unloading the internal component (1), wherein unloading the internal component (1) includes: grasping the internal component (1) by means of a gripping device (175) and subsequently releasing the internal component (1) from the retaining member (150).

14. The method according to claim 13, characterized in that, While the movable frame (120) moves from the distal position toward the proximal position, the internal component is released from the retaining member (150).

15. The method according to claim 10, characterized in that, The internal components are electrochemical battery cells used to produce batteries.

Images