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Insight into Enhanced Cycling Performance of Li-O-2 Batteries Based on Binary CoSe2/CoO Nanocomposite Electrodes
Dong, Shanmu1; Wang, Shan1; Guan, Jing1; Li, Shanming2; Lan, Zhenggang1; Chen, Chun3; Shang, Chaoqun1; Zhang, Lixue1; Wang, Xiaogang1; Gu, Lin2; Cui, Guanglei1; Chen, Liquan2
2014-02-06
发表期刊JOURNAL OF PHYSICAL CHEMISTRY LETTERS
卷号5期号:3页码:615-621
摘要

In this study, binary core-shell CoSe2/CoO nanocomposites are synthesized as cathodic electrodes for the Li-O-2 cell, which exhibits enhanced cycle performance. From theoretical calculations, aberration-corrected scanning transmission electron microscopy observation, and gas chromatography mass spectrum verification, we propose that an enhanced cycle performance can be attributed to the improvement of the compatibility of the cathode/Li2O2 interface, which results from preferable interaction between Li2O2 intermediates and the CoO "shell" and then reduction of interfacial Li2CO3 formation on the carbon surface. Furthermore, our findings demonstrate that the CoSe2 "core" may impact the electronic structure of surface metal ions, generating a superior cycling performance than that of pristine CoO materials. These results will offer some critical insights into the mechanistic process of Li-O-2 batteries.

文章类型Article
WOS标题词Science & Technology ; Physical Sciences ; Technology
DOI10.1021/jz402755b
关键词[WOS]LITHIUM-OXYGEN BATTERIES ; LI-AIR BATTERIES ; CARBONATE ELECTROLYTES ; ALPHA-MNO2 NANORODS ; IN-SITU ; CATALYSTS ; REDUCTION ; GRAPHENE ; CATHODES ; OXIDE
收录类别SCI
语种英语
WOS研究方向Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
WOS类目Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Atomic, Molecular & Chemical
WOS记录号WOS:000331153600038
引用统计
文献类型期刊论文
条目标识符http://ir.qibebt.ac.cn/handle/337004/6358
专题仿生与固态能源系统研究组
作者单位1.Chinese Acad Sci, Qingdao Inst Bioenergy & Bioproc Technol, Qingdao Key Lab Solar Energy Utilizat & Energy St, Qingdao 266101, Peoples R China
2.Chinese Acad Sci, Inst Phys, Beijing 100090, Peoples R China
3.Beijing Inst Technol, Dept Chem, Beijing 102488, Peoples R China
推荐引用方式
GB/T 7714
Dong, Shanmu,Wang, Shan,Guan, Jing,et al. Insight into Enhanced Cycling Performance of Li-O-2 Batteries Based on Binary CoSe2/CoO Nanocomposite Electrodes[J]. JOURNAL OF PHYSICAL CHEMISTRY LETTERS,2014,5(3):615-621.
APA Dong, Shanmu.,Wang, Shan.,Guan, Jing.,Li, Shanming.,Lan, Zhenggang.,...&Chen, Liquan.(2014).Insight into Enhanced Cycling Performance of Li-O-2 Batteries Based on Binary CoSe2/CoO Nanocomposite Electrodes.JOURNAL OF PHYSICAL CHEMISTRY LETTERS,5(3),615-621.
MLA Dong, Shanmu,et al."Insight into Enhanced Cycling Performance of Li-O-2 Batteries Based on Binary CoSe2/CoO Nanocomposite Electrodes".JOURNAL OF PHYSICAL CHEMISTRY LETTERS 5.3(2014):615-621.
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