Anode compositions for lithium secondary batteries
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United States of America Patent
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Feb 24, 2015
Grant Date -
Jul 7, 2011
app pub date -
Jan 7, 2010
filing date -
Jan 7, 2010
priority date (Note) -
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Abstract
A lithium secondary battery comprising a cathode, an anode, and a separator-electrolyte assembly or electrolyte layer disposed between the cathode and the anode, wherein the anode comprises: (a) an integrated nano-structure of electrically conductive nanometer-scaled filaments that are interconnected to form a porous network of electron-conducting paths comprising interconnected pores, wherein the filaments have a transverse dimension less than 500 nm; and (b) a foil of lithium or lithium alloy as an anode active material. The battery exhibits an exceptionally high specific capacity, an excellent reversible capacity, and a long cycle life.
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