Rechargeable lithium battery
AssigneeCanon Kabushiki Kaisha
InventorsSoichiro Kawakami, Shinya Mishina, Naoya Kobayashi, Masaya Asao
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Abstract
A rechargeable lithium cell comprising an anode, a separator, a cathode, and an electrolyte or an electrolyte solution, characterized in that said anode comprises (a) a metal capable of being alloyed with lithium and (b) a metal incapable of being alloyed with lithium, said anode contains lithium when charging is operated, and wherein an anode terminal is extended from a portion formed of said metal (b).
Claims27
In a rechargeable lithium battery containing an anode, the improvement which comprises:
- an anode comprising (a) a collector comprising a first metal incapable of being alloyed with lithium which is generated upon operating charging, and (b) a layer on said collector, comprising said first metal incapable of being alloyed with lithium which is generated upon operating charging and a second metal capable of being alloyed with lithium which is generated upon operating charging,
- wherein said first metal is selected from the group consisting of at least one of Ni, Ti, Cu, Ag, Au, Pt, Fe, Co, Cr, W and Mo, and said second metal is selected from the group consisting of at least one of Al, Mg, K, Na, Ca, Sr, Ba, Si, Ge, Sb, Pb, In and Zn and
- wherein said anode does not contain lithium prior to initial operating charging.
An anode for a rechargeable lithium battery, comprising:
- (a) a collector comprising a first metal incapable of being alloyed with lithium which is generated upon operating charging, and (b) a layer on said collector, comprising said first metal incapable of being alloyed with lithium which is generated upon operating charging and a second metal capable of being alloyed with lithium which is generated upon operating charging,
- wherein said first metal is selected from the group consisting of at least one of Ni, Ti, Cu, Ag, Au, Pt, Fe, Co, Cr, W and Mo, and said second metal is selected from the group consisting of at least one of Al, Mg, K, Na, Ca, Sr, Ba, Si, Ge, Sb, Pb, In and Zn;
- and
- wherein said anode does not contain lithium prior to initial operating charging.
A rechargeable lithium battery comprising an anode, a separator, a cathode, an anode terminal, and an electrolyte or an electrolyte solution, said anode terminal and said electrolyte or electrolyte solution being electrically contacted with said anode, wherein said anode has a layer comprising an alloy comprising (a) a first metal capable of being alloyed with lithium which is generated upon operating charging and (b) a second metal incapable of being alloyed with lithium which is generated upon operating charging, wherein said first metal is selected from the group consisting of at least one of Al, Mg, K, Na, Ca, Sr, Ba, Si, Ge, Sb, Pb, In and Zn, said second metal is selected from the group consisting of at least one of Ni, Ti, Cu, Ag, Au, Pt, Fe, Co, Cr, W and Mo, and said metal, and the content ratio of said first metal is 50% or more;
- and
- wherein said anode does not contain lithium prior to initial operating charging.
An anode for a rechargeable battery, having a layer comprising an alloy comprising (a) a first metal capable of being alloyed with lithium which is generated upon operating charging and (b) a second metal incapable of being alloyed with lithium which is generated upon operating charging, wherein said first metal is selected from the group consisting of at least one of Al, Mg, K, Na, Ca, Sr, Ba, Si, Ge, Sb, Pb, In and Zn, said second metal is selected from the group consisting of at least one of Ni, Ti, Cu, Ag, Au, Pt, Fe, Co, Cr, W and Mo, and the content ratio of said first metal is 50% or more;
- and
- wherein said anode does not contain lithium prior to initial operating charging.
Dependencies are inferred from the claim text.