Preparation method of sandwich structure solid electrolyte

Abstract

The invention relates to a secondary battery, in particular to a rechargeable lithium battery, which is applied to the technical field of electrochemical energy storage devices. The invention providesa novel polymerization idea for synthesizing benzidine derivatives, and the derivatives are then compounded with an electrolyte membrane containing nano silica tubes or aluminum oxide, so that a method for preparing sandwich structure solid electrolyte is realized. The method provided by the invention is simple in preparation process, high in safety, and low in requirements for equipment and technological conditions, thus being beneficial to popularization and application.

Description

technical field

[0001] The invention relates to a secondary battery, in particular to a rechargeable lithium battery, which is applied in the technical field of electrochemical energy storage devices. Background technique

[0002] With the rapid development of portable electronic devices and emerging wearable technologies, there is an increasing demand for chemical power sources with high energy density, and battery systems have gradually become the performance bottleneck in electronic devices. Among the current commercial high-energy-density battery systems, lithium-ion batteries occupy a dominant position in the market due to their high energy density, but their energy density is approaching the theoretical limit. It is of great significance to develop next-generation battery systems with higher energy density.

[0003] With the practical development of lithium-ion batteries, defects such as leakage, flammability, and explosion of traditional liquid electrolytes in the ac...