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Cell assembly having cushion member

A technology of battery packs and battery cells, which is applied to battery pack components, circuits, structural parts, etc., can solve problems that have not been raised, and achieve effective volume expansion

Active Publication Date: 2018-12-21
LG ENERGY SOLUTION LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] However, for providing a cell-mounted shock-absorbing member with thermal conductivity, specific configurations that allow efficient heat transfer have not been proposed according to the prior art, and measures to solve this problem are required

Method used

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  • Cell assembly having cushion member
  • Cell assembly having cushion member

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Embodiment Construction

[0027] figure 1 is an exploded perspective view of the main elements of a battery pack according to a preferred embodiment of the present disclosure, figure 2 yes figure 1 combined front view.

[0028] see figure 1 with 2 , The cell pack of the preferred embodiment of the present disclosure includes a plurality of cells 100 and a buffer pad 110 interposed between the cells 100 and providing a buffer function and a heat transfer function by using a single component.

[0029] A battery having an overall rectangular and thin plate-like body, such as a pouch-type secondary battery, is used as each battery cell 100 forming the battery pack. The electrode leads 101 are formed to protrude from both ends in the length direction of the cell 100 . Preferably, a plurality of battery cells 100 are arranged in one direction to basically form a laminated structure.

[0030] The buffer pad 110 is inserted between every two battery cells 100 and is arranged to be in surface contact wit...

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Abstract

Disclosed is a cell assembly comprising: a plurality of cells disposed at predetermined intervals; and a cushion pad disposed between the cells to be in surface contact with the cells to absorb volumetric expansion of the cells, wherein the cushion pad has a thermal conductivity of 1.5 W / mK or higher.

Description

technical field [0001] This application claims priority from Korean Patent Application No. 10-2016-0025759 filed in Korea on Mar. 3, 2016, the disclosure of which is hereby incorporated by reference. [0002] The present disclosure relates to battery packs, and more particularly to battery packs including cushioning components having an improved structure for absorbing volume expansion of the battery cells. Background technique [0003] Lithium secondary batteries are manufactured by combining multiple unit cells in a pack, and are widely used in applications requiring high energy such as vehicle batteries or power storage devices. [0004] However, when a battery pack including a plurality of unit cells is overcharged, deformation such as swelling and expansion in an outward direction of the module may occur along with heat generation. [0005] In order to absorb, for example, the above-mentioned volume expansion of the battery cells, a cushion pad having a predetermined s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M2/10H01M10/655C08L83/04H01M50/211H01M50/242H01M50/293
CPCC08L83/04H01M10/6555H01M10/625H01M10/647H01M10/613Y02E60/10H01M50/293H01M50/242H01M50/211H01M50/24H01M10/655
Inventor 金修烈吴世橒
Owner LG ENERGY SOLUTION LTD
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