高等学校化学学报 ›› 2004, Vol. 25 ›› Issue (11): 2082-2085.

• 研究论文 • 上一篇    下一篇

氟化石墨的电化学性能研究

董全峰, 郑明森, 金明钢, 尤金跨, 林祖赓   

  1. 厦门大学化学系厦门大学宝龙电池研究所, 固体表面物理化学国家重点实验室, 厦门361005
  • 收稿日期:2003-12-28 出版日期:2004-11-24 发布日期:2004-11-24
  • 基金资助:

    国家自然科学基金(批准号:20373058);国家“九七三”计划项目(批准号:2002CB211800);福建省科技项目(批准号:2003H044)资助.

Electrochemical Performances of Fuorinated Polymer Graphite

DONG Quan-Feng, ZHENG Ming-Sen, JIN Ming-Gang, YOU Jin-Kua, LIN Zu-Geng   

  1. State Key Lab for Physical Chemistry of Solid Surface, Xiamen University-Bao Long Battery Institute, Department of Chemistry, Xiamen University, Xiamen 361005, China
  • Received:2003-12-28 Online:2004-11-24 Published:2004-11-24

摘要: 对系列氟化石墨及其作为碱性电池正极添加剂的电化学性能进行了研究,考察了氟化石墨作为电极活性材料及用作添加剂时电池的放电行为以及氟化石墨的氟化程度和电极中氟化石墨的含量对电池的放电性能的影响.研究了MnO2中添加氟化石墨后对电极循环性能的影响,并用XRD比较了几种不同碳材料与氟化石墨的结构特点及MnO2电极放电前后的状态变化,初步探讨了氟化石墨改善二氧化锰电化学性能的作用机制.

关键词: 氟化石墨, 添加剂, 碱性电池, 电化学性能

Abstract: Using FGs(fluorinated polymer graphite) as novel cathode additives for conventional alkaline batteries were investigated. It is demonstrated that FG as a cathode additive in alkaline batteries can improve the discharge performances significantly. The discharge performance of the cells in which the cathode contains a different mass fractions of FG and that contain a fixed mass fraction of FG but with different contents of fluorine in the FG were explored in detail. Furthermore, the electrochemical behavior of pure FG cathode(i.e. the FG exclusive cathode) was studied, as well as normal graphite cathode. The storing stability of the batteries in which the cathode is made of pure FGs (FG exclusive cathode) or the cathode contained FG as additives were explored. XRD studies are carried out on fluorinated polymer graphites and some normal graphites before and after discharging and the results are discussed.

Key words: Fluorinated polymer graphite, Additive, Alkaline battery, Eletrochemical performances

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