JOURNAL ARTICLE

Preparation and Electrochemical Performance of Mn Doped Ni(OH)2

Min XiaoRu-Yue XINGShouguang YaoJie ChengYa-Ju SHENYusheng Yang

Year: 2019 Journal:   Journal of Inorganic Materials Vol: 34 (7)Pages: 703-703   Publisher: Science Press

Abstract

Mn 掺杂 Ni(OH) 2 的合成及电化学性能研究 肖 民 1 , 邢如月 1,2 , 姚寿广 1 , 程 杰 2,3 , 申亚举 2,3 , 杨裕生 2,3 (1.江苏科技大学 能源与动力学院, 镇江 212003; 2. 张家港智电芳华蓄电研究所有限公司, 张家港 215600; 3. 浙 江裕源储能科技有限公司, 长兴 313100) 摘 要: 本工作采用缓冲溶液法制备 Mn 掺杂 Ni(OH) 2 (Ni 1x Mn x (OH) 2 , x=0.1, 0.2, 0.3, 0.4), X 射线衍射测试表明样品 主要是 β 相, 有少量 Mn 3 O 4 杂相; 循环伏安测试表明, x=0.2 的材料还原峰积分面积最大、还原分支的峰电流最高; 恒流充放电测试表明, 在 100 mA/g 电流密度下, Ni 0.8 Mn 0.2 (OH) 2 放电比容量最高, 其第 20 次循环放电比容量为 271.8 mAh/g, 同等条件测试的商用 β-Ni(OH) 2 放电比容量为 253.6 mAh/g; 在 300、500 mA/g 电流密度下, Ni 0.8 Mn 0.2 (OH) 2 放电比容量仍保持最高, 分别为 294.7、 291.5 mAh/g, 而且 Mn 掺杂 Ni(OH) 2 的循环稳定性也优于商 用 β-Ni(OH) 2 。Mn 掺杂可改善镍电极的循环稳定性、降低镍电极成本, 具有广阔的应用前景。

Keywords:
Materials science Electrochemistry Doping Chemical engineering Optoelectronics Electrode Physical chemistry

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Topics

Electrochemical Analysis and Applications
Physical Sciences →  Chemistry →  Electrochemistry

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