| http://www.w3.org/ns/prov#value | - The present invention provides a composition of matter including a chemical compound of the formula Lix Niy COz Mn O2, where M is selected from the group consisting of aluminum, titanium, tungsten, chromium, molybdenum, magnesium, tantalum, silicon, and combinations thereof, x is between about 0 and about 1 and can be varied within this range by electrochemical insertion and extraction, the sum of
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