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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
Source PublicationJOURNAL OF PHYSICAL CHEMISTRY LETTERS
Volume5Issue:3Pages:615-621
Abstract

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.

SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences ; Technology
DOI10.1021/jz402755b
WOS KeywordLITHIUM-OXYGEN BATTERIES ; LI-AIR BATTERIES ; CARBONATE ELECTROLYTES ; ALPHA-MNO2 NANORODS ; IN-SITU ; CATALYSTS ; REDUCTION ; GRAPHENE ; CATHODES ; OXIDE
Indexed BySCI
Language英语
WOS Research AreaChemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
WOS SubjectChemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Atomic, Molecular & Chemical
WOS IDWOS:000331153600038
Citation statistics
Document Type期刊论文
Identifierhttp://ir.qibebt.ac.cn/handle/337004/6358
Collection仿生与固态能源系统研究组
Affiliation1.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
Recommended Citation
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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