Why the charge overpotential in non-aqueous Li–O_2 batteries is so high and exhibits different rising trends?  

非水系锂-氧气电池充电过电势过高且呈现不同上升趋势之谜

作　　者：史乐 赵天寿 

机构地区：[1]Department of Mechanical and Aerospace Engineering,The Hong Kong University of Science and Technology

出　　处：《Science Bulletin》2015年第2期281-282,I0003,共3页科学通报（英文版）

摘　　要：As one of the most promising candidates to replace the conventional lithium-ion batteries with super-high capacity, non-aqueous Li-O2 batteries have attracted increasing attention. However, the technology is still in its infant stages and widespread commercialization is hindered by several issues, particularly low round-trip efficiency and poor cycle performance--both of which can be largely attributed to the high charge overpotential in this type of battery. This perspective is to bring up a critical issue of why the charge overpotential is so high and exhibits different rising trends.As one of the most promising candidates to replace the conventional lithium-ion batteries with super-high capacity,non-aqueous Li–O2batteries have attracted increasing attention[1].However,the technology is still in its infant stages and widespread commercialization is hindered by several issues,particularly low round-trip efficiency

关 键 词：锂离子电池 过电势 非水 O2 循环性能 高容量 氧电池 商业化 

分 类 号：TM912[电气工程—电力电子与电力传动] O614.112[理学—无机化学]