储能科学与技术 ›› 2015, Vol. 4 ›› Issue (5): 487-492.doi: 10.3969/j.issn.2095-4239.2015.05.005

• 研究及进展 • 上一篇    下一篇

水系锌锂离子液流电池正极材料研究

赖勤志, 李先锋, 张华民   

  1. 中国科学院大连化学物理研究所,辽宁 大连 116023
  • 收稿日期:2015-07-10 出版日期:2015-10-19 发布日期:2015-10-19
  • 通讯作者: 张华民,博士,研究员,主要研究方向为化学电源,E-mail:zhanghm@dicp.ac.cn;李先锋,博士,研究员,研究方向为化学电源、高分子材料,E-mail:lixianfeng@dicp.ac.cn。
  • 作者简介:赖勤志(1981—),男,博士,副研究员,主要研究方向为化学电源,E-mail:qinzhilai@dicp.ac.cn

Research on properties of cathode materials of aqueous zinc-lithium flow batteries

LAI Qinzhi, LI Xianfeng, ZHANG Huamin   

  1. Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, Liaoning, China
  • Received:2015-07-10 Online:2015-10-19 Published:2015-10-19

摘要: 近年来,水系锂离子电池具有功率高、环境污染小等优点而受到广泛关注。文章采用在碱性体系中稳定性较好的LiFePO4作为正极材料,石墨板为负极,组装锌锂离子电池;通过SEM分析、XRD分析、循环伏安测试、线性扫描伏安测试等手段研究了锂的嵌入脱出以及锌的沉积溶解反应的反应活性及正极材料的稳 定性。

关键词: 水系锂离子电池, 磷酸铁锂, 电解液, 稳定性

Abstract: In recent years, aqueous lithium-ion batteries have been widely studied due to their advantages of high power, low environmental pollution, etc. In this paper, we use LiFePO4 which has better stability in alkali systems as a positive electrode, graphite plate as the negative electrode. The reactivity of the lithium insertion/extraction, zinc deposition/dissolution and the stability of positive electrode material were studied by SEM, XRD, cyclic voltammetry, linear sweep voltammetry and other methods.

Key words: aqueous lithium-ion batteries, LiFePO4, electrolyte, stability

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