Coupling between oxygen redox and cation migration explains unusual electrochemistry in lithium-rich layered oxides

• DOI: 10.1038/s41467-017-02041-x
• Publication Date: 2017-12-06T20:38:54Z
• Authors: 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
• Keywords: Cationic polymerization

Lithium-rich layered transition metal oxide positive electrodes offer access to anion redox at high potentials, thereby promising energy densities for lithium-ion batteries. However, is also associated with several unfavorable electrochemical properties, such as open-circuit voltage hysteresis. Here we reveal that in Li