A kind of preparation method and application of polymer electrolyte material for lithium battery

A technology of electrolyte materials and polymers, applied in the direction of lithium batteries, non-aqueous electrolyte batteries, secondary batteries, etc., can solve problems such as electrical conductivity and mechanical properties that cannot be taken into account, safety hazards, etc., to achieve improved safety performance, high safety performance, The effect of simplifying the preparation process
CN104078707BActive Publication Date: 2016-06-29GUANGZHOU TINCI MATERIALS TECH +2
7 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
GUANGZHOU TINCI MATERIALS TECH
Publication Date
2016-06-29

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention relates to a preparation method of a polymer electrolyte material for lithium batteries. The preparation method is suitable for lithium battery manufacturers, and comprises the following steps: (1) reacting and sealing terminals of micromolecule coupling agents of multi-functional groups of silane coupling agents, titanate and isocyanate, as well as ethylene glycol compounds modified by amino-terminated amino polysiloxane that is end capped by reactive hydrogen, alkyl hydroxyl silicone oil, polyether glycol, polyester dibasic alcohol and organic phosphate to obtain the prepolymer; (2) adding photoinitiators, cross-linked monomers and modified monomers into the prepolymer for homogenizing to obtain a solidified system; (3) enabling a some base material to be coated with the solidified system for molding by ultraviolet light curing. The polymer electrolyte material provided by the invention is favorable in mechanical property, electric conductivity and cohesive property, and the preparation method is quick and suitable for batch manufacturing.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to lithium battery polymer electrolyte technology, in particular to a polymer electrolyte material and a preparation method thereof. This product can be applied to polymer lithium-ion batteries, and has the dual functions of containing electrolyte and electrode separator. Lithium batteries made of this material can solidify liquid electrolyte materials and reduce the chemical interaction between positive and negative electrode materials and electrolyte at high temperatures. reaction, while improving the heat shrinkage resistance of the electrolyte membrane, reducing the probability of short circuit inside the positive and negative electrodes, thereby improving the thermal shock resistance of the battery, preventing combustion and explosion, improving safety, and simplifying the manufacturing process of lithium batteries , improve the specific energy density, processability and safety of the battery. Background technique

[0002] ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More