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AssigneeNanotek Instruments, Inc.
InventorsAruna Zhamu, Bor Z. Jang
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A prelithiated and surface-stabilized anode active material for use in a lithium battery, comprising a protected anode active material particle comprising a surface-stabilizing layer embracing a core particle, wherein the surface-stabilizing layer comprises a lithium- or sodium-containing species chemically bonded to the core particle and the lithium- or sodium-containing species is selected from Li2CO3, Li2O, Li2C2O4, LiOH, LiX, ROCO2Li, HCOLi, ROLi, (ROCO2Li)2, (CH2OCO2Li)2, Li2S, LixSOy, Li4B, Na4B, Na2CO3, Na2O, Na2C2O4, NaOH, NaiX, ROCO2Na, HCONa, RONa, (ROCO2Na)2, (CH2OCO2Na)2, Na2S, NaxSOy, or a combination thereof, wherein X=F, Cl, I, or Br, R=a hydrocarbon group, 0<x≤1, and 1≤y≤4; wherein the lithium- or sodium-containing species is preferably derived from an electrochemical decomposition reaction and the core particle is prelithiated to contain an amount of lithium from 1% to 100% of the maximum lithium content that can be included in the core particle of anode active material.
A prelithiated and surface-stabilized anode active material for use in a lithium battery, comprising a protected anode active material particle comprising a surface-stabilizing layer embracing a core particle, wherein said surface-stabilizing layer comprises a lithium- or sodium-containing species chemically bonded to said core particle and said lithium- or sodium-containing species is selected from Li2CO3, Li2C2O4, LiOH, LiCl, LiI, LiBr, ROCO2Li, HCOLi, ROLi, (ROCO2Li)2, (CH2OCO2Li)2, Li2S, LixSOy, Li4B, Na4B, Na2CO3, Na2O, Na2C2O4, NaOH, NaX, ROCO2Na, HCONa, RONa, (ROCO2Na)2, (CH2OCO2Na)2, Na2S, NaxSOy, a combination thereof, a combination thereof with Li2O or LiF, or a combination of Li2O and LiF, wherein X=F, Cl, I, or Br, R=a hydrocarbon group, 0<x≤1, 1≤y≤4;
A surface-stabilized anode active material for use in a lithium-ion battery, comprising a protected anode active material particle comprising a surface-stabilizing layer embracing a core particle, wherein said surface-stabilizing layer comprises a lithium- or sodium-containing species chemically bonded to said core particle and said lithium- or sodium-containing species is selected from Li2CO3, Li2O, Li2C2O4, LiOH, LiX, ROCO2Li, HCOLi, ROLi, (ROCO2Li)2, (CH2OCO2Li)2, Li2S, LixSOy, Li4B, Na4B, Na2CO3, Na2O, Na2C2O4, NaOH, NaX, ROCO2Na, HCONa, RONa, (ROCO2Na)2, (CH2OCO2Na)2, Na2S, NaxSOy, or a combination thereof, wherein X=F, Cl, I, or Br, R=a hydrocarbon group, 0<x≤1, and 1≤y≤4.
A prelithiated and surface-stabilized anode active material for use in a lithium battery, comprising a protected anode active material particle comprising a surface-stabilizing layer embracing a core particle, wherein said surface-stabilizing layer comprises a lithium- or sodium-containing species chemically bonded to said core particle and said lithium- or sodium-containing species is selected from Li2CO3, Li2C2O4, LiOH, LiX, Li2O, ROCO2Li, HCOLi, ROLi, (ROCO2Li)2, (CH2OCO2Li)2, Li2S, LixSOy, Li4B, Na4B, Na2CO3, Na2O, Na2C2O4, NaOH, NaX, ROCO2Na, HCONa, RONa, (ROCO2Na)2, (CH2OCO2Na)2, Na2S, NaxSOy, or a combination thereof, wherein X=F, Cl, I, or Br, R=a hydrocarbon group, 0<x≤1, 1≤y≤4;
Dependencies are inferred from the claim text.