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Shell coating with intelligent heat control function and preparation method thereof

A thermal coating and shell technology, which is applied in the field of shell coatings with intelligent heat control function and its preparation, can solve the problems of battery performance impact, unguaranteed thermal protection of single cells, and large differences in thermal regulation effects. , to achieve the effect of achieving cycle life, overcoming uneven heat dissipation, and improving

Active Publication Date: 2020-02-28
HEFEI GUOXUAN HIGH TECH POWER ENERGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, regarding the thermal control of lithium-ion batteries, there are related patent reports on adding flame-retardant materials to the outer coating layer of the bare core or the inner core, but this will have a certain impact on battery performance; there are also related patents on thermal management between modules , but the thermal protection of the single battery itself cannot be guaranteed, and the thermal regulation effect varies greatly in different positions of the module

Method used

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  • Shell coating with intelligent heat control function and preparation method thereof
  • Shell coating with intelligent heat control function and preparation method thereof
  • Shell coating with intelligent heat control function and preparation method thereof

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Embodiment Construction

[0026] Hereinafter, exemplary embodiments of the present disclosure will be described in more detail with reference to the accompanying drawings. Although the drawings show exemplary embodiments of the present disclosure, it should be understood that the present disclosure may be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

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Abstract

The invention provides a shell coating with intelligent heat control function and a preparation method thereof, comprising a heat control coating and a supporting coating, the supporting coating is coated on the outer layer of the heat controlling coating; the heat controlling The coating includes 20%~80% calcium chloride hexahydrate or paraffin wax with a phase transition temperature of 20~40°C; the support coating is polyvinyl chloride, polystyrene, polymethyl methacrylate or polycarbonate . The invention provides a shell coating with intelligent heat control function and its preparation method, which realizes the intelligent heat control of the single battery, and the heat regulation function is realized through the external shell without affecting the inner core structure of the battery. and so on, so as to avoid the impact on battery performance.

Description

Technical field [0001] The invention relates to the field of lithium ion batteries, in particular to a shell coating with an intelligent heat control function and a preparation method thereof. Background technique [0002] Since the commercialization of lithium-ion batteries in the 1990s, as a new type of secondary battery with high energy density and environmental protection, lithium-ion batteries have been widely used in portable electronic products. As a new type of high-energy chemical power source, it is also currently used as a power battery in all kinds of pure electric and hybrid vehicles. Electric vehicles put forward higher requirements on the performance of lithium-ion batteries, especially in terms of service life and safety. . [0003] The cycle life and electrical performance of lithium-ion batteries have a lot to do with their working temperature. If the battery is operated at high temperature for a long time, its cycle life decay rate will be faster than that under...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M2/02H01M10/613H01M10/623H01M10/625H01M10/653H01M10/659H01M10/0525H01M50/116H01M50/124
CPCH01M10/0525H01M10/613H01M10/623H01M10/625H01M10/653H01M10/659H01M50/116H01M50/124H01M50/1245Y02E60/10
Inventor 王双双李新峰王义飞
Owner HEFEI GUOXUAN HIGH TECH POWER ENERGY