A kind of all-solid polymer electrolyte, its preparation method and application

A technology of all-solid polymers and electrolytes, applied in solid electrolytes, electrolyte battery manufacturing, non-aqueous electrolytes, etc., can solve the problems of low room temperature conductivity of electrolytes and the inability to use lithium-ion batteries, etc., and achieve low cost, good mechanical strength, Effect of High Ionic Conductivity
CN104538670BInactive Publication Date: 2017-09-29HUAZHONG UNIV OF SCI & TECH RES INST SHENZHEN
3 Cites 2 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
HUAZHONG UNIV OF SCI & TECH RES INST SHENZHEN
Publication Date
2017-09-29
Estimated Expiration
Not applicable · inactive patent

Smart Images

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

Abstract

The invention discloses an all-solid polymer electrolyte, its preparation method and application, and belongs to the field of lithium ion batteries. The all-solid polymer electrolyte includes polyethylene oxide, lithium salt, inorganic nanoparticles and ionic liquid, and the lithium The mass ratio of the salt to the polyethylene oxide is 0.1 to 0.5, and the sum of the mass of the inorganic nanoparticles and the ionic liquid is 10% to 30% of the mass of the all-solid polymer electrolyte; the lithium salt includes bis One or more of lithium trifluoromethanesulfonylimide, lithium tetrafluoroborate, lithium perchlorate, lithium hexafluorophosphate, lithium hexafluoroarsenate, lithium trifluoromethanesulfonate and lithium dioxalate borate; inorganic nanoparticles include One or more of nano-alumina, nano-silicon, nano-zirconia and nano-barium titanate. The all-solid polymer electrolyte in the invention has better mechanical strength and higher ion conductivity. The method of the invention has simple process, low cost and easy acquisition of raw materials.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention belongs to the field of preparation of lithium-ion battery electrolyte materials, and more specifically relates to an all-solid polymer electrolyte, its preparation method and application. Background technique

[0002] At present, lithium-ion batteries have had a huge impact on people's daily life and the national economy. They are used in electronic products such as mobile phones and computers, automotive power plants, and renewable energy power stations. The performance of batteries depends largely on the development of materials. In lithium-ion batteries, key material components include positive electrodes, negative electrodes, and electrolytes. Electrolyte materials are important factors that affect the safety and stability of batteries.

[0003] At present, the widely used liquid electrolyte is easy to corrode the positive and negative electrodes, resulting in irreversible loss of battery capacity. At the same time, the heat generat...

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