| CoOOH用作阴极催化剂对非水性锂-氧气电池性能的影响 |
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| 引用本文： | 蔡生容,王晓飞,朱丁,母仕佳,张开放,黄利武,陈云贵.CoOOH用作阴极催化剂对非水性锂-氧气电池性能的影响[J].无机化学学报,2013,29(18). |
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| 作者姓名： | 蔡生容 王晓飞 朱丁 母仕佳 张开放 黄利武 陈云贵 |
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| 作者单位： | 四川大学材料科学与工程学院, 成都 610065,四川大学材料科学与工程学院, 成都 610065,四川大学新能源与低碳技术研究院, 成都 610065,四川大学材料科学与工程学院, 成都 610065,四川大学材料科学与工程学院, 成都 610065,四川大学材料科学与工程学院, 成都 610065,四川大学材料科学与工程学院, 成都 610065 |
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| 基金项目： | 中物院——川大协同创新联合基金（No.XTCX2014001）和四川大学青年教师科研启动基金（No.2015SCU11055）资助项目。 |
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| 摘 要： | 利用工艺简单，成本低廉的共沉淀法制得CoOOH，并用作非水性锂-氧气电池阴极催化剂。通过恒流充放电、线性伏安扫描（LSV）和电化学阻抗（EIS）测试研究了电极的电化学性能。结果表明：由于CoOOH能够明显提高氧气还原反应（ORR）的催化活性，与未使用CoOOH的电极相比较，使用CoOOH为催化剂的电极首次放电容量高达5 093 mAh·g-1，提高了1.7倍。电池的充电过电压降低了约460 mV，充电可逆性得到增强，充放电可逆性提高，使得循环性能得到显著改善。
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| 关 键 词： | 锂-氧气电池 CoOOH 催化剂 高性能 |
| 收稿时间： | 2016/7/26 0:00:00 |
| 修稿时间： | 2016/10/7 0:00:00 |
CoOOH as Cathode Catalyst for High Performance Non-Aqueous Li-O2 Batteries |
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| CAI Sheng-Rong,WANG Xiao-Fei,ZHU Ding,MU Shi-Ji,ZHANG Kai-Fang,HUANG Li-Wu and CHEN Yun-Gui.CoOOH as Cathode Catalyst for High Performance Non-Aqueous Li-O2 Batteries[J].Chinese Journal of Inorganic Chemistry,2013,29(18). |
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| Authors: | CAI Sheng-Rong WANG Xiao-Fei ZHU Ding MU Shi-Ji ZHANG Kai-Fang HUANG Li-Wu and CHEN Yun-Gui |
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| Institution: | College of Materials Science and Engineering, Sichuan University, Chengdu 610065, China,College of Materials Science and Engineering, Sichuan University, Chengdu 610065, China,Institute of New Energy and Low-Carbon Technology, Sichuan University, Chengdu 610065, China,College of Materials Science and Engineering, Sichuan University, Chengdu 610065, China,College of Materials Science and Engineering, Sichuan University, Chengdu 610065, China,College of Materials Science and Engineering, Sichuan University, Chengdu 610065, China and College of Materials Science and Engineering, Sichuan University, Chengdu 610065, China |
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| Abstract: | CoOOH was synthesized by a simple one-step co-precipitation method, and used as cathode catalyst in non-aqueous Li-O2 batteries. The introduction of CoOOH could catalyze the oxygen reduction reaction (ORR) upon discharge, making the CoOOH-contained cathode display a high discharge capacity of 5 093 mAh·g-1, which was about 1.7 times higher than that of the CoOOH-free cathode. Furthermore, the CoOOH-contained cathode exhibited a significantly reduced recharge overpotential (460 mV), enhancing recharge-ability. Thus, the reversibility was improved, and the cycling performance was ameliorated. |
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| Keywords: | Li-O2 battery CoOOH catalyst high performance |
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