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 Mn O2 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 Mn O2 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 .
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.
出处
《高等学校化学学报》
SCIE
EI
CAS
CSCD
北大核心
2004年第11期2082-2085,共4页
Chemical Journal of Chinese Universities
基金
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.
关键词
氟化石墨
添加剂
碱性电池
电化学性能
Fluorinated polymer graphite
Additive
Alkaline battery
Eletrochemical performances
