H01M 4/0404 (20130101); H01M 4/1395 (20130101); H01M 4/366 (20130101); H01M 4/386 (20130101); H01M 4/625 (20130101); Y02E 60/122 (20130101); Y02P 70/54 (20151101)
A silicon-based anode comprising silicon, a carbon coating that coats the surface of the silicon, a polyvinyl acid that binds to at least a portion of the silicon, and vinylene carbonate that seals the interface between the silicon and the polyvinyl acid. Because of its properties, polyvinyl acid binders offer improved anode stability, tunable properties, and many other attractive attributes for silicon-based anodes, which enable the anode to withstand silicon cycles of expansion and contraction during charging and discharging.
Georgia Tech Research Corporation (Atlanta, GA) Clemson University (Clemson, SC)
November 16, 2010