| 包覆Co(OH)2和CoOOH的球形Ni(OH)2电极性能研究 |
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| 引用本文： | 唐致远,王岩,耿鸣明,许峥嵘,荣强.包覆Co(OH)2和CoOOH的球形Ni(OH)2电极性能研究[J].电源技术,2004,28(5):273-275. |
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| 作者姓名： | 唐致远 王岩 耿鸣明 许峥嵘 荣强 |
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| 作者单位： | 天津大学,化工学院,天津,300072;天津和平海湾电源集团有限公司,天津,300384 |
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| 基金项目： | 教育部博士点重点基金(20020056045) |
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| 摘 要： | 球形Ni(OH)2表面改性可以有效地改善MH-Ni电池的性能。主要研究了球形Ni(OH)2表面包覆Co(OH)2和CoOOH以及它们的电极性能。实验结果证明,包覆Co(OH)2虽然容量比较高,活化快,但振实密度较小。而包覆CoOOH的球形Ni(OH)2不但振实密度高,而且制成的电极具有放电电压高,比容量高,活化次数少等优点。
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| 关 键 词： | Ni(OH)2 Co(OH)2 CoOOH 包覆 |
| 文章编号： | 1002-087X(2004)05-0273-03 |
| 修稿时间： | 2003年6月12日 |
Characteristics of pasted nickel hydroxide electrode using Co(OH)2- and CoOOH-coated spherical nickel hydroxide powders |
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| TANG Zhi-yuan ,WANG Yan ,GENG Ming-ming,XU Zheng-rong,RONG Qiang.Characteristics of pasted nickel hydroxide electrode using Co(OH)2- and CoOOH-coated spherical nickel hydroxide powders[J].Chinese Journal of Power Sources,2004,28(5):273-275. |
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| Authors: | TANG Zhi-yuan WANG Yan GENG Ming-ming XU Zheng-rong RONG Qiang |
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| Affiliation: | TANG Zhi-yuan 1,WANG Yan 1,GENG Ming-ming2,XU Zheng-rong1,RONG Qiang 1 |
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| Abstract: | The charge-discharge performance of MH-Ni battery is improved through the surface modification of Ni(OH)2 active material for nickel electrode. Co(OH)2and CoOOH compounds were chemically coated on the surface of spherical Ni(OH)2 . Results show that the capacity utilization of Co(OH)2-coated spherical Ni(OH)2 increases and the tapping density decreases. However, not only the tapping density of the CoOOH-coated Ni(OH)2 does not lower, but also the capacity utilization is improved. The CoOOH-coated Ni(OH)2 powders can supply the superior performance for advanced MH-Ni batteries because of high-rate discharge capability, high capacity utilization, fast activation capability etc. |
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| Keywords: | Ni(OH)_2 Co(OH)_2 CoOOH coating |
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