Ti.O,纳米导电添加剂
对铅酸电池正极性能的影响
郭泉忠"，郭兴华，杜克勤"，王勇，郭志刚
实验研究
www.batterychn.com
(1.中国科学院金属研究所金属腐蚀与防护实验室，辽宁沈阳110000：
2.天能集团研究院，浙江长兴313100）
摘要：采用溶胶一凝胶/碳热还原法成功地制务了Magneli相TiO，纳米导电添加剂。通过扫描电加剂加入到铅酸电泡正电极中，并采用循环伏安法和放电曲线分别考察了Ti,O,导电添加剂对电极性能的影响。试验结果表明，Ti,O纳米导电添加剂的加入可以有效改善Pb电极的电化学活性，尤其是其在高倍率电流密度下的放电性能。
关键词：溶胶一凝胶/碳热还原法；导电添加剂；Magneli相；Ti,O,；正极；铬酸电池
中图分类号：TM912.1
文献标识码：A
文章编号：1006-0847(2017)04-151-03
EffectsofnanometerTi,O,conductiveadditiveontheproperties
ofpositiveelectrodesof lead-acidbatteries
GUO Quanzhong’; GUO Xinghua'; DU Keqin'; WANG Yong'; GUO Zhigang
(I. Laboratory for Corrosion and Protection, Institute of Metal Research, Chinese Academy of Science, Shenyang Liaoning 110000; 2. The Academy of Tianneng Group, Changxing Zhejiang 313100, China)
Abstract: A Magneli phase of nanometer Ti,O, as the conductive additive was successfully prepared by the sol-gel/carbothermic reduction method. The microtopography and phase composition of the nanometer Ti,O, were characterized by SEM and X-ray diffraction. Substantial improvements of lead acid battery were obtained by the addition of small amount of Ti,O, to the positive electrode, which was investigated through cyclic voltammetry and discharge curves. Compared with the Pb electrode without Ti,O,, the Pb electrode with nanometer Ti,O, showed a better discharge property at high rate of current density
Keywords: sol-gel/carbothermic reduction method; conductive additive; Magneli phase; Ti,O,; positive electrode; lead-acid battery
0引言
近些年，一种Magneli相亚氧化钛（TinO20-1 4 收稿日期：201704-21
基金项目：国家自然科学基金（51402307，51501202）
万方数据
腐蚀性能。尤其是Ti,O，，它具有相当高的电导率（室温下超过1000S*cm"）[1-3]，如果作为铅酸电
2017 No.4 Vo1.54151