Fabrication of a new gel polymer electrolyte containing core–shell silica–polyelectrolyte nanoparticles via activators regenerated by electron transfer atom transfer radical polymerization (ARGET-ATRP) for high-performance lithium–sulfur batteries

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• 作者：Mohammad Reza Sovizi ; Ali Reza Madram
• 关键词：Gel polymer electrolyte ; Lithium–sulfur batteries ; Core–shell silica
• 刊名：Chemical Papers
• 出版年：2017
• 出版时间：January 2017
• 年：2017
• 卷：71
• 期：1
• 页码：21-28
• 全文大小：
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Chemistry/Food Science, general; Industrial Chemistry/Chemical Engineering; Biochemistry, general; Medicinal Chemistry; Materials Science, general; Biotechnology;
• 出版者：Springer International Publishing
• ISSN：1336-9075
• 卷排序：71

文摘

Presented herein is the fabrication of a new gel polymer electrolyte (GPE) containing core–shell nanoparticles for lithium–sulfur (Li–S) batteries. This work is to overcome drawbacks of poly (vinylidenefluoride) (PVDF)-based GPEs while simultaneously maintaining their beneficial electrochemical properties such as high ionic conductivity at ambient temperature and excellent chemical stability. Core–shell silica nanoparticles with silica as core and poly (vinylbenzenesulfonate) as shell was synthesized via activators regenerated by electron transfer atom transfer radical polymerization and incorporated into PVDF. The obtained composite displays ionic conductivity as high as 1.1 mS cm−1 at room temperature. Electrochemical experiments show that the new GPE acts as an effective electrolyte for high-performance lithium–sulfur batteries.