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KR-102964202-B1 - Battery cell, battery, device, method of manufacturing battery cell and manufacturing equipment

KR102964202B1KR 102964202 B1KR102964202 B1KR 102964202B1KR-102964202-B1

Abstract

An embodiment of the present application provides a battery cell comprising: a housing having a receiving space; an electrode assembly including a electrode plate received in the receiving space; and a heat conducting member configured to directly connect the electrode plate and the housing to conduct heat from the electrode assembly to the housing. According to an embodiment of the present application, the heat dissipation efficiency of the battery cell can be improved.

Inventors

  • 부, 샹이앤
  • 저우, 원린
  • 리, 싱
  • 천, 신샹
  • 왕, 펑
  • 진, 하이주

Assignees

  • 컨템포러리 엠퍼렉스 테크놀로지 (홍콩) 리미티드

Dates

Publication Date
20260512
Application Date
20210730

Claims (17)

  1. Housing having a receiving space; An electrode assembly including a electrode plate accommodated in the above-mentioned receiving space; and It includes a heat-conducting member configured to directly connect the electrode plate and the housing to conduct heat from the electrode assembly to the housing; The above housing is provided with a first receiving portion, and the heat-conducting member is configured to extend into the first receiving portion, and the first receiving portion is a battery cell which is a first through hole.
  2. In paragraph 1, The above-mentioned heat-conducting member is a battery cell connected to a cross-section of the electrode assembly where the electrode plate is exposed.
  3. In paragraph 2, The above-mentioned heat-conducting member comprises a first portion and a second portion connected to each other; the first portion is located within the first receiving portion, the second portion is located between the first portion and the electrode assembly, and the area of the second portion is larger than the area of the first portion, forming a battery cell.
  4. In paragraph 3, The above battery cell is a battery cell further comprising a cover that seals the first through hole.
  5. In paragraph 1, The battery cell further includes an insulating member disposed between the housing and the electrode assembly to separate the electrode assembly and the housing. A battery cell wherein a second through hole is provided in the insulating member, and one end of the heat-conducting member is configured to be connected to the electrode plate, and the other end is configured to pass through the second through hole and be connected to the housing; or, a first concave groove is provided in the edge of the insulating member, and one end of the heat-conducting member is configured to be connected to the electrode plate, and the other end is configured to pass through the first concave groove and be connected to the housing.
  6. In paragraph 5, The insulating member is provided with a second concave groove communicating with the second through hole on a surface close to the electrode assembly, and the heat-conducting member is a battery cell extending into the second concave groove.
  7. In paragraph 5, A boss is provided at the end of the insulating member, and the boss is in contact with the electrode assembly, and the second through hole and the concave groove are provided in the boss; A battery cell having a convex hull protruding in a direction away from the electrode assembly in the middle of the insulating member, and a baffle provided within the convex hull, wherein the baffle extends in a cross-section facing the electrode assembly and the convex hull to block the heat-conducting member from contacting the tab of the electrode assembly.
  8. In paragraph 5, A battery cell in which the thermal conductivity coefficient of the above-mentioned thermal conductive member is greater than the thermal conductivity coefficient of the above-mentioned insulating member.
  9. In paragraph 1, The battery cell comprises a plurality of electrode assemblies, and the heat-conducting member is connected to the electrode plates of the plurality of electrode assemblies.
  10. In paragraph 1, A battery cell in which a pressure relief mechanism is provided in the housing, and the heat conduction member and the pressure relief mechanism are spaced apart.
  11. A battery comprising a battery cell according to any one of claims 1 to 10.
  12. In Paragraph 11, A battery further comprising a thermal management member attached to the above housing.
  13. In Paragraph 12, The above thermal management member is a battery provided to correspond to the above thermal conduction member.
  14. A device comprising a battery cell according to any one of claims 1 to 10, wherein the battery cell provides electrical energy or acts as an energy storage unit.
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Description

Battery cell, battery, device, method of manufacturing battery cell and manufacturing equipment The present application relates to the field of battery technology, and in particular to battery cells, batteries, devices, methods for manufacturing battery cells, and manufacturing facilities. Recently, as the depletion of fossil fuels and increasing pressure from environmental pollution continue, secondary batteries are receiving unprecedented attention and development. The scope of secondary batteries' applications is becoming increasingly broad, and they are being used in various fields, such as energy storage power systems for hydroelectric, thermal, wind, and solar power plants, as well as power tools, electric bicycles, electric motorcycles, electric vehicles, military equipment, and aerospace. The attached drawings described herein are used to provide a better understanding of the present application and constitute part of the present application. Exemplary embodiments and descriptions of the present application are used to describe the present application and are not intended to constitute any inappropriate limitation to the present application. In the drawings: FIG. 1 is a schematic diagram of a vehicle according to one embodiment of the present application. FIG. 2 is a schematic diagram of the structure of a battery according to one embodiment of the present application. FIG. 3 is a schematic diagram of the structure of a battery module of one embodiment of the present application. FIG. 4 is an exploded perspective view of a battery cell of one embodiment of the present application. FIG. 5a is a cross-sectional view showing the electrode assembly structure of a battery cell according to one embodiment of the present application. FIG. 5b is a schematic diagram of the outline showing the electrode assembly of the battery cell illustrated in FIG. 5a. FIG. 6 is a cross-sectional view showing the electrode assembly structure of a battery cell of another embodiment of the present application. FIG. 7 is a perspective view after assembling the end cover and insulating member of one embodiment of the present application. FIG. 8 is a cross-sectional view showing a thermal conductive member of a battery cell according to one embodiment of the present application. FIG. 9 is a cross-sectional view showing a thermal conductive member of a battery cell of another embodiment of the present application. FIG. 10 is an exploded perspective view of a battery cell of another embodiment of the present application. FIG. 11 is a cross-sectional view showing a thermal conductive member of a battery cell of another embodiment of the present application. FIG. 12 is an exploded perspective view of a battery cell of another embodiment of the present application. FIG. 13 is a schematic diagram of a method for manufacturing a battery cell according to one embodiment of the present application. FIG. 14 is a schematic diagram of a battery cell manufacturing facility according to one embodiment of the present application. In order to make the purpose, technical solution, and advantages of the embodiments of the present application clearer, the technical solution of the embodiments of the present application is described below in conjunction with the drawings of the embodiments of the present application; it is clear that the described embodiments are only some embodiments of the present application and not all embodiments. All other embodiments obtained by a person skilled in the art based on the embodiments of the present application without needing to strive to create an inventive step are all within the scope of protection of the present application. Unless otherwise defined, all technical and scientific terms used in this application have the same implications as commonly understood by those skilled in the art; terms used in the specification of this application are intended to describe specific embodiments and are not intended to limit this application; and terms “comprising,” “comprising,” and any variations thereof in the specification, claims, and description of the drawings of this application are intended to imply non-exclusive inclusion. Terms such as “first,” “second,” etc., in the specification, claims, or drawings of this application are intended to distinguish different objects and are not intended to describe a specific order or master-slave relationship. The term “Examples” as used in this application means that specific features, structures, or characteristics described in conjunction with the Examples may be included in at least one Example of this application. Where the word appears in each place in the specification, it does not necessarily refer to the same Example, nor does it refer to independent or alternative Examples excluded from other Examples. Those skilled in the art should understand that the Examples described in this specification, expressly and implicitly, may be combined with other Examples. In the