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Polythiophosphonate
Electrolytes for Rechargeable Magnesium Batteries—Phoenix Innovation Inc.,
Dr. Brian G. Dixon, Principal
Investigator, bdixon@phoenixinnov.com
Mr. R.
DOE Grant No. DE-FG02-04ER84040
Amount: $749,669
Safety is a key concern in
the development of higher energy density rechargeable battery systems, such as
used in electric and hybrid electric vehicles.
This project will identify a superior non-aqueous, aprotic electrolyte that
can effectively support the development of practical, rechargeable magnesium
batteries. In Phase I, carbon-magnesium
composite anodes were fabricated and shown to be superior in performance to
metallic magnesium anodes. The intercalation
chemistry of advanced cathodes were adjusted to maximize the magnesium
loading. The components were assembled
into functional full cells, and the thermal and electrochemical properties
evaluated. In Phase II, the anode-cathode-electrolyte
combinations, identified during Phase I, will be optimized and scaled up to
real world battery systems. The complete
magneisum battery, either primary and secondary, will contain a nonflammable
electrolyte, and be safe to handle under ambient conditions. Performance at cold and hot temperatures will
be evaluated.
Commercial Applications and Other Benefits as described by the awardee: The technology should lead to the commercial development of new electrolytes and complete magnesium battery systems. Initial plans are to develop the materials for use in consumer batteries. Then, extensive testing would be conducted to develop prototype vehicular batteries.