石墨材料对碱性锌锰电池大电流放电性能影响

Effects of graphite for high-rate discharge performance of alkaline Zn/MnO_2 battery

石墨作为一种碱性锌锰电池必不可少的正极添加剂,对电池放电性能起着重要的作用。从石墨粒径、比表面积及表面形貌三方面来研究其对大电流放电性能的影响。结果表明,粒径相对较小,比表面积大且呈羽状蓬松形貌的石墨性能优异,更适合用于碱性锌锰电池大电流放电。

As one of the cathode additives for alkaline Zn-MnO2 battery, the graphite plays an important role on the discharge performance. The effects of particle size, specific surface area and surface morphology on the high rate discharge performance were studied. The results showed that small particle size, large specific surface area and the feathery puff of graphite was suitable for high current discharge.