摘要
研究添加少量Bi_2O_3、乙炔黑(AB)对多孔锌电极在碱性溶液中的阳极行为,电结晶形态及自放电速率的影响,得出采用复合添加剂对改善锌电极的性能具有显著的效果,在电流密度为100～400mA/cm^2下,放电性能优于含HgO锌电极,且适于在强电流密度放电,同时,用微电极技术研究,发现添加Bi_2O_3可提高成核速率,改变沉积形态,实验表明,添加Bi_2O_3可减少电极的变形,提高循环寿命;能有效地减缓电极的钝化,防止单电池的反极现象并可抑制因添加AB而引起析氢速率加快的作用。因此,对二次电池特别储备电池具有明显优点和实用价值。
The effect of small additions of Bi2O3, acetylene black (AB) on the performance of anodic polarization of porous zinc electrodes in alkaline electrolyte, zinc deposits morphology and self- discharge rates has been studied. The mixture of both additives has yielded statistically significant results in improving the performance of zinc electrodes. In addition, the effect of Bi2O3 on the nuclcation of zinc was investigated by Pt micro-disc electrodes.
出处
《厦门大学学报（自然科学版）》
CAS
CSCD
北大核心
1989年第1期44-47,共4页
Journal of Xiamen University：Natural Science
基金
厦门大学科学基金
关键词
锌电极
碱性电池
添加剂
二次电池
Zinc electrode, Secondary alkaline batteries, Additive
