Anode and battery using the same
First Claim
1. An anode, comprising:
- an anode current collector having a projection on a substrate; and
an anode active material layer including at least one kind selected from the group consisting of tin (Sn) and compounds thereof, and being formed on the anode current collector, and being alloyed with the anode current collector in at least a portion of an interface with the anode current collector.
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Accused Products
Abstract
Provided is a battery capable of improving cycle characteristics without increasing the thickness of an anode current collector. An anode active material layer including at least one kind selected from the group consisting of Sn and compounds thereof is formed on an anode current collector having a projection on a substrate through a vapor deposition method, a liquid-phase deposition method or a sintering method, and the anode current collector and the anode active material layer are alloyed with each other in at least a portion of an interface therebetween. By a function of the projection, the anode current collector can be prevented from being cracked into small pieces due to expansion and shrinkage of the anode active material layer. Further, a stress on the anode active material layer due to the expansion and the shrinkage can be spread out so that cracks produced in the anode active material layer can be scattered in various directions to reduce the size of the cracks.
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Citations
18 Claims
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1. An anode, comprising:
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an anode current collector having a projection on a substrate; and
an anode active material layer including at least one kind selected from the group consisting of tin (Sn) and compounds thereof, and being formed on the anode current collector, and being alloyed with the anode current collector in at least a portion of an interface with the anode current collector. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A battery, comprising:
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a cathode;
an anode; and
an electrolyte, wherein the anode comprises;
an anode current collector having a projection on a substrate; and
an anode active material layer including at least one kind selected from the group consisting of tin (Sn) and compounds thereof, and being formed on the anode current collector, and being alloyed with the anode current collector in at least a portion of an interface with the anode current collector. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17, 18)
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Specification