主要研究正极材料高铁酸钾的合成以及用它作为正极活性物质在一次性碱性电池中 ,于不同浓度电解质溶液和不同放电电流下的放电性能 .发现其在 9mol/L- 1KOH溶液中放电容量最高 ,并表现出良好的放电平台特性 .0 .4C时 ,放电容量可达 5 2 1 .3mAh/ g .XRD分析表明 ,放电后产物为Fe3O4 ,由此提出相关可能的放电反应机理
The K 2FeO 4 used for new positive electrode materials was prepared. The primary batteries were used in different concentration of electrolyte and different currents. In 9 mol/L KOH , the capacity was the best. The higher the concentration of electrolyte, the lower the electric potential was. When the batteries discharged in 0.4 C , the capacity reached 521.3 mAh/g. By XRD, we gave the reasonable explanations for the discharge products of K 2FeO 4. Possible mechanism of discharge is discussed.
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