학술논문
Coupling between oxygen redox and cation migration explains unusual electrochemistry in lithium-rich layered oxides
Document Type
article
Author
William E. Gent; Kipil Lim; Yufeng Liang; Qinghao Li; Taylor Barnes; Sung-Jin Ahn; Kevin H. Stone; Mitchell McIntire; Jihyun Hong; Jay Hyok Song; Yiyang Li; Apurva Mehta; Stefano Ermon; Tolek Tyliszczak; David Kilcoyne; David Vine; Jin-Hwan Park; Seok-Kwang Doo; Michael F. Toney; Wanli Yang; David Prendergast; William C. Chueh
Source
Nature Communications, Vol 8, Iss 1, Pp 1-12 (2017)
Subject
Language
English
ISSN
2041-1723
Abstract
Lithium ion battery electrodes employing anion redox exhibit high energy densities but suffer from poor cyclability. Here the authors reveal that the voltage of anion redox is strongly affected by structural changes that occur during battery cycling, explaining its unique electrochemical properties.