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Multi-component intermetallic electrodes for lithium batteries

United States Patent

March 10, 2015
View the Complete Patent at the US Patent & Trademark Office
Argonne National Laboratory - Visit the Technology Development and Commercialization Website
Multi-component intermetallic negative electrodes prepared by electrochemical deposition for non-aqueous lithium cells and batteries are disclosed. More specifically, the invention relates to composite intermetallic electrodes comprising two or more compounds containing metallic or metaloid elements, at least one element of which can react with lithium to form binary, ternary, quaternary or higher order compounds, these compounds being in combination with one or more other metals that are essentially inactive toward lithium and act predominantly, but not necessarily exclusively, to the electronic conductivity of, and as current collection agent for, the electrode. The invention relates more specifically to negative electrode materials that provide an operating potential between 0.05 and 2.0 V vs. metallic lithium.
Thackeray; Michael M. (Naperville, IL), Trahey; Lynn (Clarendon Hills, IL), Vaughey; John T. (Elmhurst, IL)
UChicago Argonne, LLC (Chicago, IL)
12/ 460,277
July 16, 2009
CONTRACTUAL ORIGIN OF THE INVENTION The United States Government has rights in this invention pursuant to Contract No. W-31-109-ENG-38 between the U.S. Department of Energy and The University of Chicago and/or pursuant to Contract No. DE-AC02-06CH11357 between the United States Government, U.S. Department of Energy and UChicago Argonne, LLC representing Argonne National Laboratory.