Anode and battery
AssigneeSony Corporation
InventorsTakakazu Hirose, Kenichi Kawase, Isamu Konishiike, Masayuki Iwama, Koichi Matsumoto
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Abstract
An anode capable of relaxing the stress due to expansion and shrinkage and a battery using the anode are provided. In the anode, an anode active material layer containing at least one of silicon and tin as an element is provided on both faces of a strip-shaped anode current collector. In the anode current collector and the anode active material layer, at least one penetrating portion that is cut out or slit to penetrate the anode current collector and the anode active material layer is formed to extend to include a longitudinal component of the anode current collector.
Claims22
An anode in which an anode active material layer containing at least one of silicon (Si) and tin (Sn) as an element is provided on both faces of a strip-shaped anode current collector, wherein
- in the anode current collector and the anode active material layer, at least one penetrating portion that is cut out or slit to penetrate the anode current collector and the anode active material layer is formed to extend to include a longitudinal component of the anode current collector.
A battery comprising:
- a cathode;
- an anode;
- and an electrolyte,
- wherein the anode has a strip-shaped anode current collector and an anode active material layer that is provided on both faces of the anode current collector and contains at least one of silicon (Si) and tin (Sn) as an element, and
- in the anode current collector and the anode active material layer, at least one penetrating portion that is cut out or slit to penetrate the anode current collector and the anode active material layer is formed to extend to include a longitudinal component of the anode current collector.
Dependencies are inferred from the claim text.