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Battery module

一种电池模块、电池组的技术，应用在电池、二次电池、电池组零部件等方向，能够解决热不能被有效地释放、电池组操作状况和稳定性变差、电池组电阻改变等问题，达到优良充电和放电效率、优良循环性质、优良寿命性质的效果

Active Publication Date: 2016-07-06
LG ENERGY SOLUTION LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Accordingly, the heat generated in the electrode terminal or the connector cannot be effectively released and tends to accumulate
As a result, deformation occurs in electrode terminals, connectors, etc., and eventually causes a change in the resistance of the battery pack
[0005] This change in resistance degrades the operating condition and stability of the battery pack and, therefore, needs to be suppressed

Method used

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Examples

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Effect test

example 1

[0073] [Example 1: Manufacture of battery modules]

[0074] manufactured with as in Figure 1 to Figure 4 A battery module with the structure shown in .

[0075] Specifically, 97% by weight of artificial graphite, 1.5% by weight of carboxymethyl cellulose (CMC ) and a styrene-butadiene rubber (SBR) binder of 1.5% by weight to prepare an aqueous negative electrode slurry, and then coat the aqueous negative electrode slurry on a copper (Cu) foil, dry it, and roll it up to prepare a negative electrode.

[0076] In addition, by adding 95% by weight of LiCoO as a positive electrode active material to a mixed solvent of water and ethanol (mixed volume ratio of water and ethanol = 90:10) 2 , preparing a positive electrode slurry by 3% by weight of Super-P (conductor) and by 2% by weight of an SBR binder, and then coating the positive electrode slurry on an aluminum foil, drying it, and rolling it up to prepare a positive electrode.

[0077] After the electrode assembly is prepared...

example 2

[0079] [Example 2: Manufacture of battery modules]

[0080] A battery module was manufactured in the same manner as in Example 1 except that three battery cell units were laminated.

example 3

[0081] [Example 3: Manufacture of battery module]

[0082] In addition to coating the heat-absorbing material between each stacked battery cell when stacking the battery cells (cell #1, 2, 3, 4, 5, 6), further on the surface and A battery module was fabricated in the same manner as in Example 1 except that a heat absorbing material was formed between the facing surfaces of adjacent battery cell units.

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Abstract

The present invention relates to a battery module, and the battery module comprises at least one battery cell unit body, wherein the battery cell unit body comprises: a battery cell; a fixing member disposed to surround the outer surface of the battery cell; and a heat absorption member disposed between the battery cell and the fixing member, so that the battery module can suppress generation of heat therein, and can suppress ignition among the battery unit bodies connected in series. Accordingly, the battery module may exhibit an excellent performance in charging and discharging, and cycle characteristics and lifespan characteristics of the battery without fear with respect to explosion and ignition.

Description

technical field [0001] The present disclosure relates to a battery module capable of enhancing life properties, cycle properties, and charge and discharge efficiency of a battery by suppressing heat generation inside the battery module. Background technique [0002] As an energy source for wireless mobile devices, secondary batteries capable of charging and discharging have recently been widely used. In addition, secondary batteries have also attracted attention as energy sources for electric vehicles, hybrid electric vehicles, etc., which are used to solve the air pollution problem of existing gasoline vehicles or diesel vehicles using fossil fuels. provided by the device. Due to many other advantages of the secondary battery, types of applications using the secondary battery have been widely diversified, and it is expected to use the secondary battery in products in more diverse fields in the future. [0003] Secondary batteries have different configurations according to...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/659H01M10/653H01M10/655H01M2/02B60L50/64
CPCH01M10/653H01M10/659H01M10/058H01M10/647H01M10/658B60L2240/545B60L58/26B60L50/64H01M10/613H01M10/625H01M10/0525Y02E60/10Y02T10/70H01M50/557H01M50/124H01M50/24Y02P70/50H01M50/293H01M50/105H01M50/178H01M50/211H01M50/264H01M50/55H01M10/617H01M10/655H01M2220/20H01M2220/10H01M50/121H01M50/119H01M50/20H01M50/543H01M10/052H01M10/651H01M10/6567
Inventor 李哲揆尹炯具郑凡永催承烈安旋谟
Owner LG ENERGY SOLUTION LTD
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