Anode and battery
AssigneeSony Corporation
InventorsTakakazu Hirose, Kenichi Kawase, Isamu Konishiike, Masayuki Iwama
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Abstract
An anode capable of preventing expansion of an anode active material layer and a battery using it are provided. The anode includes an anode current collector, and an anode active material layer containing silicon (Si) as an element, wherein the anode active material layer therein contains at least one selected from the group consisting of a fluoride of an alkali metal and a fluoride of an alkali earth metal.
Claims20
A battery comprising:
- a cathode;
- an anode;
- and
- an electrolyte,
- wherein,
- the anode comprises an anode active material layer, and
- the anode active material layer comprises silicon and a fluoride of an alkali metal, where a content of the fluoride is in an amount from 1 atomic % to 40 atomic %, inclusive, as a total amount of the alkali metal and fluorine, the fluoride of the alkali metal being in the anode active material layer.
A battery comprising:
- a cathode;
- an anode;
- and
- an electrolyte,
- wherein,
- the anode comprises an anode active material layer,
- the anode active material layer comprises silicon and a fluoride of an alkali earth metal, where a content of the fluoride is in an amount from 0.5 atomic % to 30 atomic %, inclusive, as a total amount of the alkali earth metal and fluorine, the fluoride of the alkali earth metal being in the anode active material layer.
An anode active material comprising silicon and a fluoride of an alkali metal, where a content of the fluoride is in an amount from 1 atomic % to 40 atomic %, inclusive, as a total abundance of the alkali metal and fluorine.
An anode active material comprising silicon and a fluoride of an alkali earth metal, where a content of the fluoride is in an amount from 0.5 atomic % to 30 atomic %, inclusive, as a total abundance of the alkali earth metal and fluorine.
Dependencies are inferred from the claim text.