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Battery module including constant force spring and battery pack including same

A battery module and constant force spring technology, which is applied in the field of battery modules, can solve problems such as gas generation and deformation of the shell of the battery module

Pending Publication Date: 2022-06-07
LG ENERGY SOLUTION LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At the same time, during charging / discharging, gas may be generated inside the battery cell, and due to the generated gas, the swelling phenomenon that the battery cell expands or contracts may repeatedly occur
In particular, there is a problem that the thickness of the battery cell increases due to repeated charging / discharging of the battery cell, and the case of the battery module deforms.

Method used

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  • Battery module including constant force spring and battery pack including same
  • Battery module including constant force spring and battery pack including same
  • Battery module including constant force spring and battery pack including same

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0056] figure 2 is a schematic diagram illustrating a battery module according to an embodiment of the present invention, image 3 is a side view of a battery module according to one embodiment of the present invention. refer to figure 2 and image 3 , the battery module 100 according to the present invention includes: a battery cell stack 110 produced by stacking n (n is an integer equal to or greater than 2) battery cells 111; a case 120 configured to accommodate the battery cell stack therein 110 , one surface of the case 120 is opened; the upper plate 130 is stacked on the upper end of the battery cell stack 110 ;

[0057] In addition, the battery module 100 according to an example of the present invention has a structure in which each compression pad 160 is inserted at the upper and lower ends of the battery cell stack 110 of the battery module, and the compression pad 160 is inserted at each battery cell between heaps. In addition, the battery module 10 includes a...

no. 2 example

[0064] Figure 4 is a schematic diagram showing a battery module according to another embodiment of the present invention.

[0065] refer to Figure 4 , the battery module 200 according to the present invention includes: a battery cell stack 210 produced by stacking n (n is an integer equal to or greater than 2) battery cells 211; a case 220 configured to accommodate the battery cell stack therein 210 , one surface of the case 220 is opened; the upper plate 230 is stacked on the upper surface of the battery cell stack 210 ;

[0066] In addition, the battery module 200 according to an example of the present invention has a structure in which each compression pad 260 is inserted at the upper and lower ends of the battery cell stack 210 of the battery module, and the compression pad 260 is inserted at each battery cell between heaps. In addition, the battery module 20 includes a case cover 221 configured to cover one surface of the case 220 .

[0067] In addition, the battery...

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Abstract

The present technology relates to a battery module including a constant force spring and a battery pack including the same, the battery module being capable of maintaining a uniform surface pressure of a battery cell even when the battery cell housed in the battery module is expanded, and a battery pack including the same.

Description

technical field [0001] The present invention relates to a battery module including a constant force spring and a battery pack including the same. [0002] This application claims the benefit of priority based on Korean Patent Application No. 10-2020-0089333 filed on Jul. 20, 2020, the entire contents of which are incorporated herein by reference. Background technique [0003] In recent years, with the depletion of fossil fuels leading to rising energy prices and increasing attention to environmental pollution, the need for environmentally friendly alternative energy sources has become an indispensable factor in future life. Therefore, various researches on power generation technologies such as nuclear power, solar power, wind power, and tidal power are continuously being conducted, and a power storage device for more effectively utilizing the energy generated by the aforementioned technologies is also attracting attention. [0004] In particular, with the development of tec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M50/242H01M50/244
CPCH01M50/242H01M50/244Y02E60/10Y02T10/62H01M10/0481H01M50/209H01M50/20H01M2220/10H01M2220/20H01M50/24H01M50/505H01M50/291
Inventor 金东昱
Owner LG ENERGY SOLUTION LTD