掺杂Al的α-Ni(OH)_2的电化学性能

Electrochemical Properties of Al Doped α-Ni(OH)_2

采用循环伏安、模拟电池及AA型MH/Ni实验电池对掺杂铝α Ni(OH) 2 γ NiOOH电化学过程进行了研究 .XRD分析证明掺杂Alα Ni(OH) 2 在AA型MH/Ni电池中数十次充放电循环和 1年以上放置后仍保持α Ni(OH) 2 晶体结构特征不变 ,与 β Ni(OH) 2 β NiOOH过程相比 ,其电化学行为显示出更多的优点 .

The α Ni(OH) 2 γ NiOOH electrochemical process of α Ni(OH) 2 stabilized by doping with Al has been studied by cyclic voltammetry in simulated battery and AA MH/Ni battery. The XRD results showed that the characteristic structure of α Ni(OH) 2 after one year rest and many time charge/discharge cycles in AA MH/Ni battery remained unchanged . The αγ phase tranformation had an advantage over β Ⅱβ Ⅲ transformation in some electrochemical properties.