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Shell coating with intelligent heat control function and preparation method thereof

A thermal coating and coating technology, applied in the field of lithium-ion batteries, can solve problems such as the large difference in thermal regulation effect, the impact of battery performance, and the inability to guarantee the thermal protection of single cells, so as to overcome the uneven heat dissipation effect and realize the cycle. longevity, improved effect

Active Publication Date: 2017-03-15
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] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided for 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 an intelligent heat control function and a preparation method thereof. The shell coating comprises a heat control coating and a supporting coating, wherein the outer layer of the heat control coating is coated with the supporting coating; the heat control coating is prepared from 20% to 80% of calcium chloride hexahydrate or paraffin with the phase inversion temperature of 20 to 40 DEG C; and the supporting coating is polyvinyl chloride, polystyrene, polymethyl methacrylate or polycarbonate. According to the shell coating with the intelligent heat control function and the preparation method thereof provided by the invention, intelligent heat control for a battery cell is realized, and a heat regulating function realized by an external shell cannot cause influence on the structure of a battery inner core, so that the influence on battery performance is avoided.

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 used as a power battery in various pure electric and hybrid vehicles. Electric vehicles have put forward higher requirements for 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 works at high temperature for a long time, the decay rate of its cycle life will be faster than that at n...

Claims

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Application Information

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Patent Type & Authority Applications(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
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