Diode-like gel polymer electrolytes for full-cell lithium ion batteries

Yong Yi Lin, Yen Ming Chen, Sheng Shu Hou, Jeng Shiung Jan, Yuh Lang Lee, Hsisheng Teng

研究成果: Article同行評審

20 引文 斯高帕斯(Scopus)

摘要

This study designs a positive-intrinsic-negative (PIN)-diode-like gel polymer electrolyte (GPE) for a full-cell graphite|electrolyte|LiFePO4 lithium ion battery to facilitate interfacial ion transfer at both the anode and cathode. The diode-like GPE comprises an intrinsic poly(acrylonitrile-co-methylacrylate)-hosted electrolyte layer, as well as positive and negative layers that are synthesized by doping the intrinsic layer with TiO2 and SiO2 nanoparticles, which respectively exhibits positive and negative zeta potentials. The positive layer that adsorbs PF6- anions is in contact with the LiFePO4 cathode of the battery to facilitate the transfer of Li+ cations across the interface. The negative layer, which is in contact with the graphite anode, adsorbs Li+ cations to suppress accumulation and prevent the intercalation of solvated Li+ into the graphitic framework. The intrinsic layer acts as a neutralization zone to lower the current-rectification effect of the p-n junction. This PIN-configuration design for electrolytes enhances the ultimate capacity of the full-cell battery, exhibits high rate capacity retention, and increases the lifespan (87% capacity retained after 500 charge-discharge cycles).

原文English
頁(從 - 到)17476-17481
頁數6
期刊Journal of Materials Chemistry A
5
發行號33
DOIs
出版狀態Published - 2017

All Science Journal Classification (ASJC) codes

  • 一般化學
  • 可再生能源、永續發展與環境
  • 一般材料科學

指紋

深入研究「Diode-like gel polymer electrolytes for full-cell lithium ion batteries」主題。共同形成了獨特的指紋。

引用此