Additive for battery, secondary battery, battery module, battery pack and device

A secondary battery and additive technology, applied in secondary batteries, secondary battery repair/maintenance, batteries, etc., can solve the problems of battery thermal runaway, explosion, battery combustion, etc., and achieve the effect of ensuring safety performance
CN112563571APending Publication Date: 2021-03-26CONTEMPORARY AMPEREX TECH CO
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
CONTEMPORARY AMPEREX TECH CO
Publication Date
2021-03-26

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Abstract

The invention provides an additive for a battery, a secondary battery, a battery module, a battery pack and a device, the additive comprises a core structure and a coating layer coating the core structure, the core structure comprises one or more of an aniline compound and a pyrrole compound, and the melting point of the coating layer is in a range of 80-150 DEG C. The additive for the battery provided by the invention can effectively improve the safety performance of the battery in a high-temperature environment.
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Description

technical field

[0001] The present application relates to the field of energy storage materials, in particular to a battery additive, a secondary battery, a battery module, a battery pack and a device. Background technique

[0002] Compared with lead-acid batteries, nickel-metal hydride batteries, and nickel-cadmium batteries, secondary batteries have the advantages of high specific energy density, high discharge rate and long cycle life, and have been widely used in consumer electronics and power storage fields. The safety performance of secondary batteries has been widely concerned by customers.

[0003] When the heat released by the battery increases during cycling, it may cause thermal runaway of the battery, which in turn puts the battery at risk of burning or exploding. Therefore, effective technologies are needed to solve the problem of thermal runaway of batteries at high temperatures. Contents of the invention

[0004] In view of the problems existing in the bac...

Claims

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