摘要
用循环伏安法研究了胶体电解液对PbO_2和Pb电极放电性能的影响。结果表明PbO_2电极阴极还原机理为:PbO_2→PbO·PbSO_4·H_2O→PbSO_4;硅酸胶体对铅酸蓄电池正、负极充放电的电化学反应无影响,对蓄电池的放电容量和电流等有影响。加入添加剂后,可使电池的电动势和电流接近或超过纯硫酸蓄电池。探讨了硅酸钠含量,添加剂和温度对胶体触变性能与胶化时间的影响。
Influence of colloid electrolyte on charge and discharge characteristic of Pb and PbO_2 electrode has been studied by cyclic Voltammetry. The result indicates that the PbO_2 electrode is reduced cathodically in two steps:
PbO_2→PbO·PbSO_4·H_2O→PbSO_4
Silicious colloid has no influence on charge and discharge characteristic of the plumbeous acid storage battery, except it has a litter effect on electric current and discharge capacity of storage battery. The electromotive force and discharge current of the battery may get access to or surpass the pure sulphuric-acid accumulator, when some additives are added. Moreover, glued time and influences of content of silicate sodium, additives and temperature on changing charateristic of colloid have been studied.
出处
《湘潭大学自然科学学报》
CAS
CSCD
1990年第4期57-62,共6页
Natural Science Journal of Xiangtan University
