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Review-Lithium-Excess layered cathodes for lithium rechargeable batteries

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Title
Review-Lithium-Excess layered cathodes for lithium rechargeable batteries
Author(s)
Hong, J.; Gwon, H.; Sung-Kyun Jung; Kyojin Ku; Kisuk Kang
Publication Date
2015-10
Journal
JOURNAL OF THE ELECTROCHEMICAL SOCIETY, v.162, no.14, pp.A2447 - A2467
Publisher
ELECTROCHEMICAL SOC INC
Abstract
The exceptionally high gravimetric capacity of lithium-excess layered cathodes (LLCs) has generated interest in their use in lithiumion batteries (LIBs) for high-capacity applications. Their unique electrochemical and structural properties are responsible for this high capacity, which exceeds the theoretical redox capability of transition metal oxides and have been intensively investigated. However, various fundamental and practical challenges must be overcome before LLCs can be successfully commercialized. The structure of pristine LLCs, which varies with the composition and type of transition metal species used, remains unclear. In addition, the structure continuously changes during electrochemical cycling, which further complicates its understanding. In this review, we discuss the current understanding of LLCs, including their pristine structures, redox chemistries, and structural evolution during cycling, and suggest future research directions to address the critical issues. © 2015 The Electrochemical Society
URI
https://pr.ibs.re.kr/handle/8788114/2286
ISSN
0013-4651
Appears in Collections:
Center for Nanoparticle Research(나노입자 연구단) > Journal Papers (저널논문)
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