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Battery pack, battery system and battery pack thermal runaway control method

A control method and battery pack technology, applied to secondary batteries, battery components, circuits, etc., can solve problems such as explosions and fires, and achieve the effects of improving safety performance, triggering thresholds, and improving safety and reliability

Inactive Publication Date: 2021-07-23
CHINA AVIATION LITHIUM BATTERY RES INST CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Taking lithium-ion batteries as an example, one of the main sources of unsafe conditions is the thermal runaway of the battery. When a battery module in the battery pack suffers from thermal runaway, if the thermal runaway battery module is not dealt with, it will cause Safety accidents such as fire and explosion

Method used

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  • Battery pack, battery system and battery pack thermal runaway control method
  • Battery pack, battery system and battery pack thermal runaway control method
  • Battery pack, battery system and battery pack thermal runaway control method

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Embodiment Construction

[0029] The specific implementation manners of the battery pack, the battery system, and the method for controlling thermal runaway of the battery pack provided by the embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be noted that the described embodiments are only some of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0030] An embodiment of the present invention provides a battery pack, such as Figure 1 to Figure 3 As shown, it may include: a plurality of circuit modules (such as D1, D2, D3 and D4) and a liquid cooling system 10, and the circuit modules (such as D1, D2, D3 and D4) include at least one battery (such as C1 to C7);

[0031] The battery pack has a po...

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Abstract

The invention discloses a battery pack, a battery system and a battery pack thermal runaway control method, and can utilize a circuit module for normal power supply to supply power to a liquid cooling system, on one hand, the thermal runaway circuit module can be cooled, further deterioration of the thermal runaway circuit module is avoided, and potential safety hazards of the battery pack are reduced; on the other hand, the circuit module for normal power supply can be discharged, a state of charge of the circuit module for normal power supply is reduced, safety performance of the battery pack is improved, the thermal runaway trigger threshold can be further improved, the inhibition effect on thermal runaway of the battery pack is finally improved, and safety and reliability of the battery pack are improved.

Description

[0001] This application claims the priority of the Chinese patent application with the application number 202011620238.6 and the application name "battery pack, battery system and battery pack thermal runaway control method" submitted to the China Patent Office on December 31, 2020, the entire content of which is passed References are incorporated in this application. technical field [0002] The invention relates to the field of battery technology, in particular to a battery pack, a battery system and a method for controlling thermal runaway of the battery pack. Background technique [0003] Taking lithium-ion batteries as an example, one of the main sources of unsafe conditions is the thermal runaway of the battery. When a battery module in the battery pack suffers from thermal runaway, if the thermal runaway battery module is not dealt with, it will cause Safety accidents such as fire and explosion. Contents of the invention [0004] Embodiments of the present inventio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/613H01M10/6567H01M50/502H01M50/574
CPCH01M10/613H01M10/6567Y02E60/10
Inventor 李新建牛力郭其鑫张轩孙国华
Owner CHINA AVIATION LITHIUM BATTERY RES INST CO LTD
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