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Energy Technologies

Lawrence Berkeley National Laboratory

In Situ Engineering of the Electrode–Electrolyte Interface for Stabilized Overlithiated Cathodes

Published Web Location

https://doi.org/10.1002/adma.201604549
Abstract

The first-ever demonstration of stabilized Si/lithium-manganese-rich full cells, capable of retaining >90% energy over early cycling and >90% capacity over more than 750 cycles at the 1C rate (100% depth-of-discharge), is made through the utilization of a modified ionic-liquid electrolyte capable of forming a favorable cathode-electrolyte interface.

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