CAJ | 학술논문

用化学方法制备了化学组成为Ca(OH)2·2Zn(OH)2·2H2O的锌酸钙，并经XRD、SEM和差热天平技术对其结构进行了证实，同时用粉末微电极、模拟电池技术和XRD技术研究了该化合物的循环伏安特性、充放电行为和充放电过程中物质的形态变化。实验结果表明：锌酸钙在碱性溶液中表现出明显优于ZnO和锌钙混合物的循环性能，其充电后的产物为金属锌。将其用作负极活性材料的锌镍电池目前已循环500多次，且未出现电池容量的明显衰减。
용화학방법제비료화학조성위Ca(OH)2·2Zn(OH)2·2H2O적자산개，병경XRD、SEM화차열천평기술대기결구진행료증실，동시용분말미전겁、모의전지기술화XRD기술연구료해화합물적순배복안특성、충방전행위화충방전과정중물질적형태변화。실험결과표명：자산개재감성용액중표현출명현우우ZnO화자개혼합물적순배성능，기충전후적산물위금속자。장기용작부겁활성재료적자얼전지목전이순배500다차，차미출현전지용량적명현쇠감。
The compound of calcium zincate, of which the composition was Ca(OH)2 ·2Zn(OH)2 ·2H2O, was prepared by a chemical method. The crystal structure was verified by XRD,SEM and DT methods. The cyclic voltammetric performance, the charge/discharge behavior were tested by powder microelectrode and laboratory cell technologies, and the morphology change during charge and discharge processes were examined also by XRD method. The experimental results showed that in alkaline solution, the performance of calcium zincate prevailed that of ZnO and the mixture of zinc and calcium. The product after charging was metallic zinc while using calcium zincate as the negative material in zinc/nickel battery, the battery capacity was not decayed obviously even after 500 cycles.