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The Energy Technologies Area (ETA) is unique in translating fundamental scientific discoveries into scalable technology adoption. Our approach combines an understanding of the marketplace and the role of state and federal regulation and policies. ETA's research drives real-world, practical results that affect and improve the everyday lives of Americans and those across the globe. Saving energy and battling the Climate Crisis are key to the foundation of our research, which is driven by technoeconomic analysis and in-lab experimentation and discovery.

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

Publication Type

Journal Article

Date Published

01/2017

Authors

Evans, Tyler, Daniela Molina Piper, Huaxing Sun, Timothy Porcelli, Seul Cham Kim, Sang Sub Han, Yong Seok Choi, Chixia Tian, Dennis Nordlund, Marca M Doeff, Chunmei Ban, Sung-Jin Cho, Kyu Hwan Oh, Se-Hee Lee

DOI

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.

Journal

Advanced Materials

Volume

Year of Publication

2017

Issue

Organization

Energy Storage and Distributed Resources Division, Energy Storage Group, Battery Group