中國有色金屬學(xué)報(bào)(英文版)
Transactions of Nonferrous Metals Society of China
| Vol. 14 No. 3 June 2004 |
as anode material for nickel/zinc batteries①
TANG You-gen(唐有根)2, TANG Zan-qian(唐贊謙)2, YANG Zhan-hong(楊
（1. Department of Chemistry, Huangshan College, Huangshan 245021, China;
2. College of Chemistry and Chemical Engineering, Central South University,
Changsha 410083, China）
Abstract:The anode material Zn4SO4(OH)6·5H2O for nickle/zinc batteries was synthesized by hydrothermal method and was identified by XRD techniques. TG/DAT measurements reveal that the products lose lattice water at 145℃and decompose to 3ZnO·ZnSO4 at 274℃. Cyclic voltammetry and recharging/discharging results show that CV curves have good symmetry, the ratio of oxidation area to reduction area for each curve is about 1, and the peak potentialEPaandEPc have little change with the scanning rate. At 50th circle, more than 65% of theoretical capacity is obtained while at the same condition, zinc oxide electrode only remains 35% of theoretical capacity.
Key words: Zn4SO4(OH)6·5H2O; nickle/zinc battery anode material; hydrothermal synthesis
