锌酸钙的球磨法合成及其电化学性能  

Electrochemical Properties of Calcium Zincate Synthesized by Ball-Milling Method

作　　者：王晓丹[1] 杨化滨[1] 孟宪玲[1] 张海昌[1] 周作祥[1] 

机构地区：[1]南开大学新能源材料化学研究所,天津300071

出　　处：《应用化学》2003年第6期528-531,共4页Chinese Journal of Applied Chemistry

基　　金：国家自然科学基金项目 ( 5 990 10 0 5 );天津市重点基金项目 ( 0 13 80 2 611)资助

摘　　要：采用球磨方法合成了锌镍二次电池的负极活性物质锌酸钙。经过对XRD和差热、热重数据的分析 ,证明用这种方法合成的化合物的结构式为Ca(OH) 2 ·2Zn(OH) 2 ·2H2 O。并且从SEM和粒度分析数据中明显看出 ,产物的粒径较化学法合成产品的小、比表面积大。循环伏安法和充放电实验结果表明 。Calcium zincate as an active material in Zn/Ni secondary battery has been successfully synthesized by ball milling method. Its chemical composition Ca(OH) 2 ·2Zn(OH) 2 ·2H 2 O was confirmed by DTA TG and XRD. The SEM microphotos indicated that calcium zincate obtained by ball milling not only has smaller particles but also larger specific surface area than that prepared by chemical method. The calcium zincate prepared by ball milling has a better cyclic behavior and a higher discharge capacity than that prepared by chemical method.

关 键 词：锌酸钙 阳极材料 电化学性能 锌镍电池 

分 类 号：O646[理学—物理化学] TM912.9[理学—化学]