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Battery module with thermally activated protective device

A battery module and protection device technology, applied in the direction of batteries, secondary batteries, battery pack components, etc., can solve problems such as the inability to prevent heat transmission of battery modules, and achieve the effect of simple manufacturing

Active Publication Date: 2020-09-15
VOLKSWAGEN AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But such mechanical protection does not prevent heat spread inside the battery module

Method used

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  • Battery module with thermally activated protective device
  • Battery module with thermally activated protective device
  • Battery module with thermally activated protective device

Examples

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Embodiment Construction

[0026] figure 1 and figure 2 A battery module 100 according to the invention is shown schematically. The battery module 100 can be used, for example, as a module of a modular traction battery of an electric vehicle. The battery module 100 has a plurality of battery cells 10 and at least one thermally activatable protection device 20 designed to, in the event of imminent thermal runaway of at least one battery cell 10 within the battery module 100 , The at least one battery cell 10 is thermally and spatially separated from the other battery cells 10 and / or the environment.

[0027] according to figure 1 , the battery cell 10 may be designed in the form of a prismatic battery cell. according to figure 2 , the battery cell 10 can be designed in the form of a circular battery cell.

[0028] Such as figure 1 and figure 2 As shown, the at least one thermally activatable protective device 20 has a thermally activatable activation element 21 in the sense of the present inve...

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Abstract

The invention relates to a battery module (100), comprising: several battery cells (10) and at least one thermally activatable protective device (20) which is designed to protect at least one batterycell (10) within the battery module (100) in the event of an imminent thermal runaway to thermally isolate and spatially separate a battery cell (10) from the other battery cells (10) and / or from the environment.

Description

technical field [0001] The invention relates to a battery module according to the independent device claim and a method of protecting a battery module from impending thermal runaway according to the independent method claim. Background technique [0002] In the event of damage to the electric vehicle, for example in an accident, the propagation of thermal runaway (thermischen Durchgehen) in the battery module from one battery cell to the other is a greater risk for the environment and for persons, for example vehicle occupants . Mechanical protection devices are known for battery modules which can withstand sudden mechanical loads under certain circumstances. However, such mechanical protection devices do not prevent heat propagation within the battery module. Contents of the invention [0003] Therefore, the technical problem to be solved by the present invention is to provide an improved battery module. In particular, the technical problem underlying the invention is ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M2/10H01M10/625H01M10/647H01M10/658H01M50/209
CPCH01M10/625H01M10/647H01M10/658H01M2200/10H01M2220/20H01M2200/00H01M50/209H01M10/653Y02E60/10H01M50/24
Inventor P.泰彻特
Owner VOLKSWAGEN AG
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