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A preparation method of nano-scale polymer electrolyte for flexible lithium battery

A lithium battery, nano-scale technology, applied in nanotechnology for materials and surface science, electrolyte storage battery manufacturing, non-aqueous electrolyte storage battery, etc., can solve multiple time, energy and electrochemical potential problems, and achieve electrochemical stability Good performance, high ionic conductivity, high thermal stability

Active Publication Date: 2022-04-19
常州乾艺智能制造科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, battery charging requires more time, energy and electrochemical potential

Method used

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  • A preparation method of nano-scale polymer electrolyte for flexible lithium battery
  • A preparation method of nano-scale polymer electrolyte for flexible lithium battery
  • A preparation method of nano-scale polymer electrolyte for flexible lithium battery

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Embodiment Construction

[0040] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0041] The present invention proposes a method for preparing a nanoscale polymer electrolyte for a flexible lithium battery, such as Figure 1 As shown, it includes the following steps:

[0042] (1) Synthesis of crosslinked nano-polystyrene (PS).

[0043] Purified styrene is difficult to store. Commercial products often contain added inhibitors (e.g., trace amounts of hydroquinone). Pure styrene is washed with 10% NaOH solution to remove the inhibitor (tert-butyl catechol), then rinsed twice with water, and then mgSO 4 Carry out drying. Using dichloromethane as the solvent, pure styrene was separated by column chromatography. Remove the solvent and vacuum for half an hour. Pure styrene is stored at 0 °C.

[0044] Chloroform is added to vinyl anise ether, the mixture is washed with 10% sodium hydroxide, and the yellow organic matter is rinsed twice with water, wi...

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Abstract

The invention discloses a method for preparing a nanoscale high polymer electrolyte for a flexible lithium battery, which includes the synthesis of PS; PS‑SO 2 Synthesis of Cl and synthesis of PSTFSILi. The PSTFSILi prepared by the invention has high ionic conductivity, high thermal stability, best electrochemical stability and ideal chemical and mechanical properties, and can be used for flexible lithium batteries.

Description

Technical field [0001] The present invention relates to the field of lithium-ion batteries, in particular a method for preparing a nanoscale polymer electrolyte for flexible lithium batteries. Background [0002] Pressure to reduce carbon emissions, global warming and over-reliance on fossil fuels are several of the factors that make electric and hybrid vehicles (EV / HEV) more attractive alternatives than burning fossil fuels. Lithium-ion batteries have a higher power-to-weight ratio (2.59MJ / Kg) than lead-acid batteries. In addition, lithium-ion batteries have good versatility in many other applications, such as computers, mobile phones, cameras, camcorders, and medical devices. However, current lithium-ion batteries have to overcome some limitations before they can be used on a large scale. Three of the most important challenges are energy density, cost and operational safety. Electrolyte is the second most expensive (after cathode) component in lithium-ion batteries. Battery co...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F212/08C08F212/36C08F8/44C08F8/38H01M10/0565H01M10/058B82Y30/00
CPCC08F212/08C08F8/44H01M10/058H01M10/0565B82Y30/00C08F212/36C08F8/38Y02E60/10Y02P70/50
Inventor 梅新艺贾超翔张鲁青陈杨龙魏嵬布拉贾·K·曼达尔
Owner 常州乾艺智能制造科技有限公司
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