760results about "Jackets/cases materials" patented technology

The system for deicing black ice includes a plurality of laser scanners that are arranged at intervals along a road, each laser scanner including a light source unit, a non-contact temperature sensor, and a control unit that controls an operation of radiating the laser to the area in charge, a weather sensor that measures a temperature and humidity, and an integrated controller that communicates with the plurality of laser scanners. The integrated controller determines whether the laser is radiated to the road surface based on at least one of the measured temperature and humidity, and when the laser radiation is determined, generates a control signal to activate at least one laser scanner, and the control unit determines a heating area, and generates a pulse signal to turn on / off a light source unit so that the laser is radiated in accordance with a shape and range of the heating area.

A battery cell, a battery, and an electric device. The battery cell includes a housing assembly, an electrode assembly, and a current collecting member. The housing assembly includes an electrode lead-out portion for inputting or outputting electric energy. The electrode assembly is accommodated in the housing assembly, where the electrode assembly includes a body and a tab, the tab is disposed on the body, and a material of the tab is different from that of the electrode lead-out portion. The current collecting member includes an additional portion having a same material as that of the electrode lead-out portion and a body portion having a same material as that of the tab, the additional portion is connected to the body portion, the additional portion is connected to the electrode lead-out portion through welding, and the body portion is connected to the tab through welding.

The utility model relates to the technical field of batteries, in particular to a top cover assembly, a battery monomer and a battery assembly. The top cover assembly comprises an insulating sheet, a top cover sheet, a negative electrode assembly and a positive electrode assembly, the insulating sheet comprises a first through hole and a second through hole, the top cover sheet comprises a negative electrode part corresponding to the first through hole, a positive electrode part corresponding to the second through hole and a remaining main body part, and the negative electrode assembly is installed on the negative electrode part; the positive electrode part comprises at least one convex part which protrudes towards the direction far away from the insulating sheet relative to the main body part, and the convex part forms the positive electrode assembly; the end surface of one end, far away from the insulating sheet, of the convex part is flush with the end surface of one end, far away from the insulating sheet, of the negative electrode assembly; and the outer convex part and the main body part are integrally formed. The outer convex part formed by stamping the top cover plate is used as the positive electrode, and a sealing ring, a positive electrode terminal, positive electrode upper plastic and other parts in a conventional structure are omitted, so that the cost is greatly reduced.

The electrochemical device includes: a case including a recessed container having a bottom and a side wall, and a cap covering the opening of the recessed container; a power generation element including a laminate having an electrode layer, an electrode layer and a solid electrolyte layer laminated together and contained in the interior space of the case such that the bottom and electrode layer face each other; and a conductive plate located adjacent to the opening of the recessed container and positioned between the electrode layer and cap. The recessed container includes insertion holes with openings in the upper end surface of the side wall. The conductive plate includes elastic locking portions located on edges thereof and corresponding in position to the insertion holes. With each elastic locking portion inserted in an insertion hole, the tip portion of the elastic locking portion presses a side surface of the insertion hole.

The utility model provides a button cell. The button cell comprises a first shell, a second shell, a diaphragm and a second pole piece, the first shell comprises a conducting layer and an insulating layer, a first mounting groove is formed in the middle of the first shell, and the surface of the conducting layer is coated with an active material layer within the range of the first mounting groove; a second mounting groove is formed in the middle of the second shell; the edges of the first shell and the second shell are hermetically connected to form a mounting cavity, at least parts of the first tab and the second tab are exposed out of the mounting cavity, and the diaphragm and the second pole piece are arranged in the mounting cavity. The active material layer is arranged on the surface of the conductive layer of the first shell, so that the problems of non-uniform thickness of the pole piece and falling of the active material layer caused by rolling of the active material layer coated on the pole piece are avoided, the problem of large gram capacity fluctuation is avoided, the gram capacity is more stable, and the battery performance is effectively improved.

An energy storage device, such as a lithium-ion battery, without tabs connecting the electrode jelly roll to the can, and a method for making the same, is described. A series of flags may be cut, bent, and interleaved with one another to form connection points for upper and lower collector plates within the can. The upper and lower collector plates can be welded directly to the interleaved flags to form connection points for the anode and cathode in the energy storage device.

Apparatus, systems, and methods described herein relate to the manufacture and use of single pouch battery cells. In some embodiments, an electrochemical cell includes a first current collector coupled to a first portion of a pouch, the first current collector having a first electrode material disposed thereon, a second current collector coupled to a second portion of the pouch, the second current collector having a second electrode material disposed thereon, and a separator disposed between the first electrode material and the second electrode material. The first portion of the pouch is coupled to the second portion of the pouch to enclose the electrochemical cell.

An electrode assembly having a first electrode, a second electrode, and a separator positioned between the first electrode and the second electrode. The first electrode, the second electrode, and the separator are together wound about an axis in a winding direction resulting in a plurality of winding turns. Each of the first electrode and the second electrode has a first side and a second side opposite the first side in the direction of the axis, as well as a first, electrode active material portion, coated with an electrode active material, extending from the second side in the direction of the first side, and a second, uncoated portion extending from the first side in the direction of the second side to the active material of the first portion. Additionally, the first side of the first electrode and the first side of the second electrode are divided into a plurality of segments by a cut groove, and each of the segments has a first end corresponding to the first side of either the first or the second electrode. One or more of the segments are bent in a radial direction relative to the axis, at a point below the first end of each bent segment, and the separator has a side that is positioned between the bending point of each bent segment and a boundary between the first and the second portions.

The invention provides a cylindrical battery, which comprises a shell pole column, a first electrode, a second electrode, a third electrode and a fourth electrode, the battery cell is arranged in the shell, a first tab part and a second tab part are led out from the battery cell, the polarity of the first tab part is opposite to that of the second tab part, the first tab part is connected with the shell so that the shell can form a first current output end, the second tab part is connected with the pole in a welded mode, and a welding mark is formed on the second tab part; the pole forms a second current output end; the insulation structure comprises an insulation layer and an adhesive layer arranged on the insulation layer, the insulation structure forms a non-bonding area in an area outside the adhesive layer, at least part of the adhesive layer is bonded on the circumferential surface of the battery cell, and the non-bonding area extends to the surface of the second tab part. According to the scheme, the overlapping size between the non-bonding area and the second tab part, the bonding size of the adhesive layer on the battery cell and the size between the non-bonding area and the welding mark are optimized, and the heat dissipation effect of the second tab part and the warping and falling risk of the non-bonding area can be considered.

The invention relates to the technical field of new energy, and discloses a battery and a battery pack, the battery comprises: a shell, the shell contains a Ti element, and the mass of the Ti element accounts for more than or equal to 60% of the total mass of the shell; the pole column is arranged on the shell; the battery cell comprises a battery cell body and tabs, the tabs comprise a positive tab and a negative tab, one of the positive tab and the negative tab is electrically connected with the pole, and the other one of the positive tab and the negative tab is electrically connected with the shell; the ratio of the mass of the Ti element of the shell to the total mass of the shell is a, the conductivity of the shell is b, and the lead-out size of the tab from the cell body is c; a. C / b is greater than or equal to 99 and less than or equal to 3650. According to the battery provided by the invention, the relationship among a, b and c is comprehensively controlled, so that the light weight of the shell is realized, the over-current capability of the battery can be met, the battery is prevented from generating relatively large temperature rise, and the condition that the safety performance of the battery is poor is prevented.

The present invention discloses a battery having a structure in which a protective member is applied between an electrode assembly and a beading portion. A battery according to an aspect of the present invention includes an electrode assembly, a battery housing including a beading portion formed with an opening portion on one side and accommodating the electrode assembly through the opening portion, and formed by press-fitting an outer peripheral edge from the side of the opening portion, a top cap covering the opening portion, and a first protective member interposed between the beading portion and the electrode assembly.

An exterior material to be used for a battery comprises at least one pattern part formed in a transverse direction (TD) of the exterior material, wherein the TD of the exterior material is a width direction of a battery including the exterior material, and a machine direction (MD) of the exterior material is a longitudinal direction of the battery including the exterior material.

Discussed is a battery that may include an electrode assembly including a first electrode, a second electrode and a separator wound around a winding axis, wherein the first electrode includes a first active material region coated with a first active material layer and a first uncoated region not coated with the first active material layer, and at least a part of the first uncoated region being an electrode tab; a first current collector coupled to at least a part of the first uncoated region on the electrode assembly; a battery housing to accommodate the electrode assembly and the first current collector; and an insulator interposed between at least one of the first uncoated region and the first current collector and an inner surface of the battery housing facing the at least one of the first uncoated region and the first current collector to block an electrical connection between the battery housing and the at least one of the first uncoated region and the first current collector.

A method for manufacturing a pouch-type secondary battery according to an embodiment of the present invention may include: a first sealing operation of fusing a lead film, which is attached to an electrode lead of an electrode assembly, to a sealing portion of a pouch in which the electrode assembly is accommodated; and a second sealing operation of sealing the sealing portion of the pouch. The first sealing operation may include: a heating process of irradiating with a laser beam a region which is present in the sealing portion of the pouch and corresponds to the lead film, thereby heating the lead film and melting a resin layer of the region; and a bonding process of compressing the region, thereby bonding the lead film and the melted resin layer.

To provide a rechargeable battery suitable for personal digital assistants or wearable devices. , novel electronic devices having various external shapes, and secondary shapes suitable for those shapes We provide batteries. [Solution] The film has recesses or protrusions that relieve the stress generated when an external force is applied. The secondary battery is sealed using a film. The film is press-formed, for example, E The embossing process creates a pattern composed of recessed or raised areas.

Provided are a nonaqueous electrolyte secondary battery whereby damage to electrode bodies is suppressed and a production method therefor. The nonaqueous electrolyte secondary battery according to an embodiment of the present invention is provided with: an electrode body in which a first electrode and a second electrode that have different polarities are wound with a separator interposed therebetween; a nonaqueous electrolyte; an exterior can that houses the electrode body and the nonaqueous electrolyte, the exterior can being shaped as a bottomed cylinder; and a sealing body for sealing the opening of the exterior can. The first electrode has a core, a mixture layer formed on at least part of the surface of the core, and an exposed section of the core provided on one end on one side of the electrode body in the winding-axis direction. The exposed section has: an easily deformable section formed along the winding-axis direction of the electrode body; and an end surface section formed by the exposed section being curved along the easily deformable section, said end surface section being disposed on one end surface in the winding of the electrode body. The end section is joined to a current collector and the current collector is connected to the exterior can or the sealing body.

Provided are: at least one cylindrical power storage device (20); and an upper holder (30) that holds an upper end side of the power storage device, a positive electrode terminal (26) and a negative electrode terminal (25C) being disposed at an upper end portion of the power storage device, the negative electrode terminal being disposed at a position that is more outward in a radial direction of the power storage device than the positive electrode terminal, and a negative electrode lead (50) that is connected to the negative electrode terminal from an outer side in the radial direction, the upper holder having a restriction portion (34) that is located at a position that is more inward in the radial direction than at least a portion of the negative electrode lead.

The present invention provides a secondary battery, battery pack, and electronic device that improve the energy density of the secondary battery while simultaneously preventing thermal damage to the separator. [Solution] The secondary battery includes a case and an electrode assembly housed within the case, the electrode assembly includes a winding structure formed by stacking and winding a positive electrode sheet, a separator and a negative electrode sheet, along the axial direction of the winding structure, the positive electrode current collector of the positive electrode sheet includes a positive electrode coated region and a positive electrode uncoated region, the negative electrode current collector of the negative electrode sheet includes a negative electrode coated region and a negative electrode uncoated region, a part of the positive electrode uncoated region is folded to form a positive electrode tab stacking region, the positive electrode tab stacking region includes a positive electrode tab stacking number stable region, within the positive electrode tab stacking number stable region, the number of stacked positive electrode tabs is m, a part of the negative electrode uncoated region is folded to form a negative electrode tab stacking region, the negative electrode tab stacking region includes a negative electrode tab stacking number stable region, within the negative electrode tab stacking number stable region, the number of stacked negative electrode tabs is n, where m > n.

A power storage device 10 comprises a case 20, a power storage element 30, a belt-like lead 41, and an opening-sealing member 50. The opening-sealing member 50 is provided with: an insulating gasket 51 having a base part 53; and an electroconductive opening-sealing plate 56. The opening-sealing plate 56 has a displacement part 57. The displacement part 57 of the opening-sealing plate 56 and the lead 41 are electrically connected to each other. By displacement of the displacement part 57 in a direction separating away from the lead 41 in response to a rise in internal pressure inside the case 20, the displacement part 57 and the lead 41 are electrically disconnected from each other. The storage device 10 further comprises a displacement suppression means 43 that is disposed in the case 20 and that suppresses displacement of the lead 47 when the displacement part 57 is displaced in the direction separating away from the lead 41. Accordingly, the operation reliability in an electric current cutoff mechanism is enhanced.

This utility model relates to the field of battery technology and discloses a battery and an electrical device, comprising: a battery cell, including a casing, a positive electrode plate, a negative electrode plate, and a first positive electrode post, wherein the positive and negative electrode plates are disposed within the casing, the negative electrode plate is electrically connected to the casing, and the first positive electrode post is disposed within the casing and electrically connected to the positive electrode plate; and a first protection module, including a first circuit board, a first positive connecting piece, and a first negative connecting piece, wherein the first positive connecting piece and the first negative connecting piece are disposed on the first circuit board, the first circuit board module has a first receiving groove, the first negative connecting piece is located outside the first receiving groove and connected to the casing, the first positive connecting piece is located within the first receiving groove, and the first positive electrode post is inserted into the first receiving groove and connected to the first positive connecting piece. The battery structure of this utility model embodiment is simple and has high energy density.

A battery holder (50), which is an example of an embodiment, includes a plurality of housing parts (51) that respectively accommodate a plurality of cylindrical batteries (10) such that the outer peripheries of the cylindrical batteries (10) in the longitudinal direction are held in a state in which the positive electrode sides and the negative electrode sides thereof are aligned. Each cylindrical battery (10) includes: an electrode body (14); a bottomed cylindrical exterior can (16) that accommodates the electrode body (14); and a positive electrode cap (27) that seals the opening of the exterior can (16). The positive electrode cap (27) has a slit (64). Each housing part (51) has a locking part (52) that engages with the slit (64) to fix and hold the cylindrical battery (10) at a prescribed position.

Cylindrical battery cell (70), comprising: an electrode arrangement (71) comprising a first electrode plate, a second electrode plate and a separator arranged between them, wherein the electrode arrangement (71) is wound such that it has a first end face and a second end face (52) opposite each other, wherein the first electrode plate has an uncoated section arranged at the first end face of the electrode arrangement (71) and the second electrode plate has an uncoated section arranged at the second end face (52) of the electrode arrangement (71), wherein the uncoated sections extend beyond the separator; a battery box (51) which accommodates the electrode arrangement (71) and is electrically connected to the first electrode plate, wherein the battery box (51) has a first end face and a second end face (52) which are opposite each other, wherein the first end face is open; an electrode connection (50, 50') which passes through a perforated opening (53) formed in the second end face (52) of the battery box (51); and a sealing body (74) that closes the first end face of the battery box (51); a seal (54) which is arranged between the electrode connection (50, 50') and the perforation opening (53), where the electrode connection has (50, 50'): - a body segment (50a) that passes through the perforation opening (53); - an outer flange section (50b) extending from the body section (50a) along an outer surface (52a) of the second end surface (52) of the battery box (51); - an inner flange section (50c) arranged inside the battery box (51) and extending outwards from the body section (50a); and - a flat section (50d) arranged in the battery box (51) and surrounded by the inner flange section (50c), wherein a recess is formed between the inner flange section (50c) and the flat section (50d); wherein the seal (54) has: an outer seal (54a) arranged between the outer flange section (50b) and the outer surface (52a) of the second end surface (52) of the battery box (51); and an inner seal (54b) arranged between the inner flange section (50c) and the inner surface (52b) of the second end surface (52) of the battery box (51), wherein at least one section (54a') of the outer seal (54a) is exposed to the outside of the outer flange section (50b) of the electrode connection (50), wherein the exposure width (G) of the outer seal (54a), measured in a direction parallel to the outer surface of the second end surface (52) of the battery box (51), is 0.1 mm to 1 mm.

The conformal battery pack assembly includes an array of electrically connected individual electrochemical cells surrounded and encapsulated by a flexible outer shell, and the array is geometrically arranged such that there are at least three non-parallel bending axes.

This invention provides a coin cell battery and its manufacturing method. The method includes providing a first housing, the first housing including a conductive layer and an insulating layer, a first mounting groove in the middle of the first housing, a through hole in the insulating layer within the first mounting groove, and a conductive layer exposed outside the insulating layer through the through hole. An active material layer is coated on the surface of the conductive layer. A second electrode is inserted into a second mounting groove of a second housing, and a separator is placed inside. The edges of the first housing and the second housing are sealed, and the first mounting groove and the second mounting groove are sealed to form a mounting cavity, thus obtaining a coin cell battery. By pre-coating the active material layer onto the surface of the conductive layer of the first housing, the problems of uneven electrode thickness and active material layer detachment caused by rolling the active material layer onto the electrode are avoided, resulting in a more stable specific capacity and effectively improving battery performance.

The energy storage battery (100) includes a ribbon-shaped electrode and separator assembly (104) in the form of a cylindrical winding having two terminal end faces (104b, 104c) and a winding shell (104a) disposed therebetween. The electrodes have current collectors (115, 125), respectively, and are offset from one another within the assembly so that the longitudinal edge of the negative electrode protrudes from one of the end faces (104b, 104c) and the longitudinal edge of the positive electrode protrudes from the other end face. The assembly (104) is axially aligned within a housing including a metal tubular housing portion (101) having a terminal circular opening (101c) such that the winding shell (104a) abuts the interior (101b) of the tubular housing portion (101). In a preferred embodiment, the winding shell is formed by a separator or a separate plastic band and is therefore insulated from the housing portion (101). The battery (100) includes a contact element (110) that is in direct contact with one of the longitudinal edges (115a, 125a) protruding from the end face for electrical contact of one of the electrodes and is connected to this longitudinal edge, preferably by welding. It is proposed to use a contact element (110) with a circular edge and to use the contact element (110) to close the terminal circular opening (101c) of the tubular housing part (101).

Provided is a battery including a case and a cap plate. The case is a cylindrical groove structure, a top end face, facing towards the case, of the cap plate is provided with an annular protrusion, the annular protrusion has a central axis coinciding with the central axis of the cap plate, an edge of the top end face of the cap plate is provided with a first welding platform face, the first welding platform face is arranged circumferentially around the annular protrusion, and an outer sidewall of the annular protrusion and the first welding platform face constitute a stepped face. The annular protrusion enters the interior of the case via an annular bottom end face of the case, and the annular bottom end face of the case is in contact with the first welding platform face and connected to the first welding platform face by laser welding.

A method of assembling an electric battery (1) includes providing a hollow container (2) having side walls (3) and a bottom wall (4) that define an interior cavity (7); providing a top (8) of the hollow container (2) having an exterior surface (53); providing an insert (15) made of conductive material having connections (21); providing a lid (30); inserting an electrochemical cell (9) into the interior cavity (7) of the hollow container (2); and mechanically and electrically connecting the insert (15) made of conductive material to the electrodes of the electrochemical cell (9). the step of electrically connecting the hollow vessel (2) to the lid (30), closing the internal cavity (7) of the hollow vessel (2) with the lid (30), creating an overlapping area in which the top of the hollow vessel (2) is located axially above the lid (30) and the connecting portion (21) of the insert (15) made of conductive material, and welding at least the connecting portion (21) of the insert (15) made of conductive material and the top of the hollow vessel (2) together in the overlapping area (50) by applying a welding machine to the side of the top of the hollow vessel (2) facing the outer surface (53).

The nonaqueous electrolyte secondary battery according to the present application includes a storage container having a positive electrode can, a gasket, and a negative electrode can, and a power generating element containing an electrolyte. The positive electrode can is formed in a bottomed cylindrical shape having a bottom wall portion and an outer wall portion. The negative electrode can is formed in a toped cylindrical shape having a top wall portion and an inner wall portion. A portion of the outer wall portion on the top wall portion side is a calked portion 12b that is curved toward the inner wall portion side with a curvature radius R from the bottom wall portion side to an opening end edge of the outer wall portion. The nonaqueous electrolyte secondary battery has a diameter of 4.6 mm to 5.0 mm. A height H2 of the positive electrode can is in a range of 74% to 79% relative to a height H1 of the nonaqueous electrolyte secondary battery. The curvature radius R of the calked portion is in a range of 0.7 mm to 1.1 mm.