酸处理对天然二氧化锰电性能的影响

Influence of Acid Treating Natural MnO_2 on ITS Performance

用稀硫酸和盐酸处理天然二氧化锰制备活化二氧化锰．经XRD、ICP分析，确定了活化二氧化锰的晶型与天然二氧化锰相同，仍为β型，但锰和二氧化锰含量增加．经恒流放电、电位扫描测试，发现活化二氧化锰的电性能较天然二氧化标有所改善：开路电压、工作电压提高，放电容量增大．对此进行了初步的理论探讨．

AMD was manufactured by sulfuric and hydmehloric acid treating NMD. XRD determination dis plaied that crystal structures of AMD Was the saxne as NMD and still β type, ICP determination revealed that the content of MnO_2 increased, The discharge test and linear potential sweep detendnation revealed that open cirouit voltage, dischnye voltage and discharge capacity raised.