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February 2019

Untangling a Strange Phenomenon that Both Helps and Hurts Lithium-ion Battery Performance


Scientific Achievement

Users and staff at the Molecular Foundry have found that oxygen oxidation, the process that gives lithium-rich batteries greater capacity, also causes them to fail.

Significance and Impact

This is the first complete picture of the process that causes lithium-rich battery cathodes to fail. Better understanding this process will allow researchers to learn how to control its effects, and lead to better performing batteries for consumer products and electric vehicles.

Research Details

J. Hong, W. E. Gent, P. Xiao, K. Lim, D.-H. Seo, J. Wu, P.M. Csernica, C.J. Takacs, D. Nordlund, C.-J. Sun, K.H. Stone, D. Passarello, W. Yang, D. Prendergast, G. Ceder, M.F. Toney, W.C. Chueh . Nature Materials. 2019 Feb 4 DOI: 10.1038/s41563-018-0276-1