Power battery module

A power battery and module technology, applied in the field of energy storage devices, can solve the problems of thermal runaway of cells, thermal runaway of adjacent cells, failure of battery modules and battery packs, etc., to prevent accumulation and reduce the potential risk of thermal runaway Effect

Inactive Publication Date: 2016-04-13
CONTEMPORARY AMPEREX TECH CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In the related technology, the protection between the cells in the power battery module is basically only insulation and anti-shock measures, which leads to the potential risk of thermal runaway between the cells, which is very easy when a single cell goes out of control. Cause thermal runaway of adjacent cells, eventually leading to failure of the entire battery module and battery pack

Method used

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Embodiment Construction

[0045] The present application will be described in further detail below through specific embodiments and in conjunction with the accompanying drawings. "Front", "rear", "left", "right", "upper" and "lower" mentioned in the text are all based on the placement state of the power battery module in the drawings.

[0046] like Figures 1 to 3 As shown, the embodiment of the present application provides a power battery module, including a module case 10 , a heat dissipation system 12 , a battery cell 14 and a thermal runaway prevention structure 16 . Among them, several battery cells 14 are regularly arranged side by side in the module casing 10, serving as the power supply core of the battery module. The heat dissipation system 12 is arranged on the module casing 10, and generally absorbs heat inside the module casing 10 through a thermally conductive film layer with high thermal conductivity, and transfers the absorbed heat to the outside of the module casing 10 for dissipation....

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Abstract

The invention relates to the field of energy storage device, in particular to a power battery module. The power battery module comprises a module housing, a cooling system, a plurality of cells and thermal runaway preventing structures, wherein the plurality of cells are regularly arranged in the module housing in parallel; the cooling system is arranged on the module housing; one thermal runaway preventing structure is arranged between two adjacent cells; each thermal runaway preventing structure comprises two heat-conducting layers and a thermal insulating layer; every heat-conducting layers are stacked at two sides of each thermal insulating layer respectively, and are connected with the cooling system; and the heat-conducting layers can transmit the heat on the side surface of the adjacent cell to the cooling system. According to the power battery module provided by the invention, one thermal runaway preventing structure is arranged between two adjacent cells; the heat between the two adjacent cells can be insulated; meanwhile, the heat on the side surfaces of the cells is timely transferred to the cooling system; and heat accumulation on the side surfaces of the cells is prevented, so that the potential risk of thermal runaway between the cells is lowered.

Description

technical field [0001] The present application relates to the field of energy storage devices, in particular to a power battery module. Background technique [0002] As the energy density in power batteries and energy storage batteries is getting higher and higher, the market's requirements for fast charging of batteries are getting stronger and stronger. When designing batteries, the consideration of battery safety and battery thermal management is also increasing. more. On the one hand, when the batteries are abused, a lot of heat will be generated, which can easily cause thermal runaway of the entire module, or even the entire power battery module. Therefore, special safety protection for the power battery is necessary. On the other hand, as the requirements for fast charging of batteries are getting higher and higher, the requirements for thermal management of battery modules are getting higher and higher, so the heat dissipation design of battery modules also needs to ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/613H01M10/647H01M10/653H01M10/6555H01M10/658
CPCH01M2200/00Y02E60/10
Inventor 马林杨全
Owner CONTEMPORARY AMPEREX TECH CO
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