摘要
经２００℃热处理的电解二氧化锰，通过热分析、Ｘ射线衍射分析、红外光谱分析以及表面ｐＨ值和表面积的测定，说明与未处理的电解二氧化锰相比性质发生了变化。经２００℃热处理的电解二氧化锰失去部分结合水而使其红外吸收峰和Ｘ射线衍射峰位移，晶面间距减小，Ｍｎ－Ｏ键力增强，Ｏ—Ｈ键力减弱，表面ｐＨ值降低，比表面积增大，于是出现放电容量增大。
The methods of thermal analysis,XRD,IR,ZIA and pH measuring were employed to distinguish EMD and the heat-treated EMD.The results of heat-treated EMD showed that a part of combined water lost,pH descended,the diffraction peaks of XRD and the absorptive peaks of IR displaced,the face interval distance of crystal reduced,the force of Mn-O bond strengthened,the force of O-H bond weakened.These properties of physical chemistry led to that discharge capacity increased,dicharge curve was smooth and the potential descended.
出处
《电池》
CAS
CSCD
北大核心
1999年第3期107-109,共3页
Battery Bimonthly
