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Lithium-free transition metal monoxides for positive electrodes in lithium-ion batteries Highly Cited Paper

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Title
Lithium-free transition metal monoxides for positive electrodes in lithium-ion batteries
Author(s)
Sung-Kyun Jung; Hyunchul Kim; Min Gee Cho; Sung-Pyo Cho; Byungju Lee; Hyungsub Kim; Young-Uk Park; Jihyun Hong; Kyu-Young Park; Gabin Yoon; Won Mo Seong; Yongbeom Cho; Myoung Hwan Oh; Haegyeom Kim; Hyeokjo Gwon; Insang Hwang; Taeghwan Hyeon; Won-Sub Yoon; Kisuk Kang
Publication Date
2017-02
Journal
Nature Energy, v.2, no.2, pp.16208 -
Publisher
Nature Publishing Group
Abstract
Lithium-ion batteries based on intercalation compounds have dominated the advanced portable energy storage market. The positive electrode materials in these batteries belong to a material group of lithium-conducting crystals that contain redoxactive transition metal and lithium. Materials without lithium-conducting paths or lithium-free compounds could be rarely used as positive electrodes due to the incapability of reversible lithium intercalation or the necessity of using metallic lithium as negative electrodes. These constraints have significantly limited the choice of materials and retarded the development of new positive electrodes in lithium-ion batteries. Here, we demonstrate that lithium-free transition metal monoxides that do not contain lithium-conducting paths in their crystal structure can be converted into high-capacity positive electrodes in the electrochemical cell by initially decorating the monoxide surface with nanosized lithium fluoride. This unusual electrochemical behaviour is attributed to a surface conversion reaction mechanism in contrast with the classic lithium intercalation reaction. Our findings will oer a potential new path in the design of positive electrode materials in lithium-ion batteries. © 2017 Macmillan Publishers Limited, part of Springer Nature. All rights reserved.
URI
https://pr.ibs.re.kr/handle/8788114/3484
ISSN
2058-7546
Appears in Collections:
Center for Nanoparticle Research(나노입자 연구단) > Journal Papers (저널논문)
Files in This Item:
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