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.
参考文献
| [1] | Povlov A P;Grigorieva L K;Chizhik S P et al.Nickel-zinc batteries with long cycle life[J].Journal of Power Sources,1996,62:113. |
| [2] | Bode H;Dehmelt K;Witte J .Zur kennlinie der nickel hydroxide electrode[J].Electrochimica Acta,1966,11:1079. |
| [3] | Zhang Hengbin;Liu Hansan;Cao Xuejing et al.Preparation and properties of the aluminum-substituted Ni(OH) 2[J].Materials Chemistry and Physics,2003,79:37. |
| [4] | Audemer A;Randell C F;Tye F L .[J].Journal of Applied Electrochemistry,1980,10:127. |
| [5] | Wang CY.;Zhong S.;Konstantinov K.;Walter G.;Liu HK. .Structural study of Al-substituted nickel hydroxide[J].Solid state ionics,2002(3/4):503-508. |
| [6] | Gomadama P M;Weidner J W;Dougal R A et al.Mathematical modeling of lithium-ion and nickel battery systems[J].Journal of Power Sources,2002,110:267. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%