Battery module, and battery rack and power storage device comprising battery module
A technology of battery modules and battery cells, applied in the field of battery racks and energy storage systems, can solve the problems of increasing fire transfer to surrounding battery modules, high temperature gas being unable to escape, and damage.
Pending Publication Date: 2021-12-14
LG ENERGY SOLUTION LTD
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Problems solved by technology
[0007] However, conventional battery modules with an air-cooled structure have the problem that high-temperature gas cannot escape smoothly from the battery module
In this case, the thermal runaway of any one battery cell inside the battery module may propagate to the adjacent battery cells inside the battery module, which may cause the entire battery module to explode, thus causing great damage
[0008] In addition, when a flame is generated inside a conventional battery module having an air cooling structure, if the internal flame leaks to the outside, there is an increased risk of the fire being transferred to the surrounding battery modules
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[0037] The present disclosure will become more apparent by describing in detail embodiments of the present disclosure with reference to the accompanying drawings. It should be understood that the embodiments disclosed herein are merely illustrative for better understanding of the present disclosure, and that the present disclosure may be modified in various ways. In addition, for easy understanding of the present disclosure, the drawings are not drawn in actual scale, but the size of some components may be exaggerated.
[0038] figure 1 is a view for illustrating a battery module according to an embodiment of the present disclosure, figure 2 is showing figure 1 A cross-sectional view of the battery module, image 3 is used to show the figure 1 A view of the main part of the outside of the battery module case employed at the battery module, Figure 4 is used to show the figure 1 A view of the main part of the inside of the battery module case employed at the battery modu...
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A battery module according to an embodiment of the present invention comprises: battery cells; a module case for accommodating the battery cells and having an inner cooling flow path on both sides of the battery cells; venting openings provided on both lateral surfaces of the module case; sheet members which are mounted on both lateral surfaces of the module case, so as to cover the venting openings, and melt at a predetermined temperature or higher to open the venting openings; and barrier brackets positioned a predetermined distance away from the sheet members and mounted on the inner walls of both lateral surfaces of the module case.
Description
technical field [0001] The present disclosure relates to a battery module and a battery rack and an energy storage system including the battery module. [0002] This application claims priority from Korean Patent Application No. 10-2019-0136958 filed in Korea on October 30, 2019, the disclosure of which is incorporated herein by reference. Background technique [0003] Secondary batteries are highly suitable for various products and exhibit excellent electrical properties such as high energy density, so secondary batteries are commonly used not only in portable devices but also in electric vehicles (EV) or Hybrid Electric Vehicles (HEV). Since the secondary battery can greatly reduce the use of fossil fuels and does not generate by-products during energy consumption, the secondary battery has attracted attention as a new energy source for improving environmental friendliness and energy efficiency. [0004] Currently widely used secondary batteries include lithium-ion batte...
Claims
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IPC IPC(8): H01M50/20H01M50/258H01M10/613H01M10/6561
CPCH01M50/20H01M50/258H01M10/613H01M10/6561Y02E60/10H01M50/342H01M50/375H01M50/207H01M10/6563H01M2220/10H01M50/367H01M10/52H01M50/204H01M50/24H01M50/251H01M10/6556H01M50/209H01M2200/10
Inventor 柳载旼辛殷圭曹相铉文祯晤李润九
Owner LG ENERGY SOLUTION LTD