A kind of boron series compound branched carboxylated nitrile rubber and its preparation method and application

A technology of carboxylated nitrile rubber and boric acid compound, which is applied in the field of boron compound branched carboxylated nitrile rubber and its preparation, can solve the problems of electrode polarization, low conductivity of solid polymer electrolyte, low room temperature ionic conductivity, etc. Achieve the effect of avoiding electrode polarization, avoiding high ion migration number, and high conductivity at room temperature or high temperature
CN104892803BActive Publication Date: 2017-07-28GUANGDONG GREAT MATERIAL CO LTD
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Patents(China)
Current Assignee / Owner
GUANGDONG GREAT MATERIAL CO LTD
Publication Date
2017-07-28

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Abstract

The invention relates to the technical fields of light industry and chemical materials, particularly a boron compound branched carboxy nitrile rubber, and a preparation method and application thereof. The boron compound branched carboxy nitrile rubber is prepared by carrying out esterification reaction on carboxy nitrile rubber and a boron compound disclosed as Formula G. The boron compound branched carboxy nitrile rubber can be used as a polymer electrolyte of a lithium ion battery. The boron compound branched carboxy nitrile rubber has an anionic receptor group capable of performing the functions of stably dissociating anions and inhibiting oriented migration of anions. Besides, the branched structure of the boron compound branched carboxy nitrile rubber can effectively enhance the motility of the molecule segment and promote the migration of the lithium ions. Therefore, when being used as a polymer electrolyte of a lithium ion battery, the boron compound branched carboxy nitrile rubber provided by the invention has the advantage of high room-temperature or high-temperature electric conductivity, and can avoid electrode polarization and high ion migration number.
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Description

technical field

[0001] The invention relates to the technical field of light industry and chemical materials, in particular to a boron compound branched carboxylated nitrile rubber and its preparation method and application. Background technique

[0002] In recent years, there is a strong demand for lithium-ion batteries with high operating voltage, high energy density, high energy efficiency, long cycle life, low self-discharge rate, low pollution, no memory effect, and good safety. Traditional lithium-ion batteries mostly use organic solvents (such as propylene carbonate (PC), dimethyl carbonate (DMC), diethyl carbonate (DEC)) as electrolytes, which are volatile, flammable, and safe for leakage Hidden danger.

[0003] To solve these above-mentioned problems, attempts have been made to develop a solid polymer electrolyte, a new class of ion conductors to replace conventional electrolytes, for use in Li-ion battery devices. In the 1970s, solid electrolytes have been explor...

Claims

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