Ni(OH)2电极材料的xRD和Raman光谱表征

摘要

用XRD和Raman光谱等方法对几种典型球形Ni(OH)2电极材料进行了表征，并分析了材料的表观形貌、掺杂元素和微观结构等对其充放电性能的影响.结果表明，有较好填充性和充放电性能Ni(OH)2电极材料所具有的特征为，颗粒的球形好且结晶完好，晶粒较小，较大的晶格参数c，并在510和3596 cm-1处可以生成Raman光谱峰；而XRD和Raman光谱方法则是评价Ni(OH)2电极材料性能的有效手段.%Several spherical Ni(OH)2 electrode materials were prepared and characterized by XRD,Raman spectrometry and other experimental methods. The effects of apparent appearance, doping elements and microscopic structure of Ni(OH)2 samples on their charge-discharge performances were discussed. The results showed that the Ni (OH)2 electrodes had good filling and higher chargedischarge property and were characterized by a proper spheroidicity and crystallinity, small grain size and greater cell parameter c. In Raman spectra they gave characteristic peaks at 510 and 3596 cm-1 bands. The XRD and Raman spectrometry appeared an effective tools for evaluation of Ni (OH)2electrode material.