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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

Pending Publication Date: 2021-03-26
CONTEMPORARY AMPEREX TECH CO
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  • Summary
  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0003] When the heat released by the battery increases during cycling, it may lead to thermal runaway of the battery, which in turn puts the battery at risk of burning or exploding

Method used

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

Examples

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Embodiment

[0079] The following examples describe the content disclosed in the present application more specifically, and these examples are for illustrative purposes only, since various modifications and changes within the scope of the disclosed content of the application will be apparent to those skilled in the art. Unless otherwise stated, all parts, percentages, and ratios reported in the following examples are based on weight, and all reagents used in the examples are commercially available or synthesized according to conventional methods, and can be directly The instruments used without further processing, as well as in the examples, are commercially available.

[0080] (1) Preparation of positive electrode sheet for lithium ion battery

[0081] The positive electrode active material lithium nickel cobalt manganese oxide (LiNi 0.8 co 0.1 mn 0.1 o 2 ), the conductive agent Super-P, and the binder polyvinylidene fluoride (PVDF) are dissolved in the solvent N-methylpyrrolidone (NM...

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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.

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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Application Information

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IPC IPC(8): H01M10/0567H01M10/42H01M10/0525
CPCH01M10/0525H01M10/0567H01M10/4235H01M2200/10H01M2300/0094H01M10/42Y02E60/10
Inventor 程博韩昌隆
Owner CONTEMPORARY AMPEREX TECH CO
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