摘要
采用微波特殊加热技术 ,首次对不同镍盐制得的球形Ni(OH) 2 材料进行了热处理研究 ,恒电流充放电测试结果表明 ,处理后材料的电化学比容量较未处理的提高 5 %～ 9%左右 ,充放电平台也明显提高。XRD与SEM测量结果揭示了该方法显著改善材料性能的原因 ,发现处理样品的C轴明显大于未处理样品 ,并且 (0 0 1)晶面和 (10 1)晶面的衍射峰也有显著宽化作用 ,同时表面有明显枝晶出现。
Microwave technology was used to treat Ni(OH) 2 material.The result of charge discharge experiment showed that the specific capacity of treated material was 5%-9% higher than untreated material and the discharge plateau raised obviously.XRD and SEM tests indicated that the c axis was larger than untreated material and the diffraction peaks of (001) and (101) widened dendrite appeared on the surface.Cyclic voltammogram result showed the improvement of the electrochemical reversibility.
出处
《电池》
CAS
CSCD
北大核心
2002年第2期85-87,共3页
Battery Bimonthly
