摘要
为了改善Ni（OH）2的电化学性能，提高锌镍电池的充放电效率，用简便的化学共沉淀法合成了Al掺杂的Ni（OH）2。用XRD、FTIR表征了合成掺杂Al的Ni（OH）2样品的晶体结构及IR光谱特征；测试了用Al掺杂的Ni（OH）2为正极活性物质的Zn／Ni实验电池的充放电性能。研究结果表明：所合成的Al掺杂Ni（OH）2具有α-Ni（OH）2的晶体结构；Al掺杂Ni（OH）2活性物质在充放电过程中转移电子数目大于1，Al掺杂Ni（OH）2作为正极活性物质的Zn/Ni试验电池的第二次循环放电比容量为362．9mAh／g。
Al-doped nickel hydroxide is prepared by a simple chemical co-precipitating method. The structures and IR characters of the compounds is characterized by XDR and FFIR techniques. The charging/discharging performances of Zn/ Ni experimental batteries,with Al-doped nickel hydroxide as the positive electrode active, are measured. The results show that the number of transferred electron is more than one during the charge-discharge processes, and the Al-doped nickel hydroxide is alpha-type Ni（OH）2 and its discharge special capacity is 362. 9mAh/g at the 2nd cycle.
出处
《材料导报》
EI
CAS
CSCD
北大核心
2005年第F05期263-265,共3页
Materials Reports
