Anode and battery
First Claim
Patent Images
1. An anode comprising:
- an anode current collector; and
an anode active material layer,wherein,the anode active material layer contains -silicon and a fluoride of an alkali metal where a content of fluoride is in an amount from 1 atomic % to 40 atomic %, inclusive, as a total abundance of the alkali metal and fluorine,the anode active material layer has a plurality of active material particles, andthe anode active material layer contains oxygen in an amount from 3 atomic % to 15 atomic % inclusive.
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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.
8 Citations
22 Claims
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1. An anode comprising:
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an anode current collector; and an anode active material layer, wherein, the anode active material layer contains -silicon and a fluoride of an alkali metal where a content of fluoride is in an amount from 1 atomic % to 40 atomic %, inclusive, as a total abundance of the alkali metal and fluorine, the anode active material layer has a plurality of active material particles, and the anode active material layer contains oxygen in an amount from 3 atomic % to 15 atomic % inclusive. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An anode comprising:
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an anode current collector; and an anode active material layer, wherein, the anode includes an anode current collector and an anode active material layer, the anode active material layer contains silicon and a fluoride of an alkali earth metal, where a content of the fluoride of the alkali earth metal in the anode active material layer is within the range from 0.5 atomic % to 30 atomic %, inclusive, as a total abundance of the alkali earth metal and fluorine, the anode active material layer has a plurality of active material particles, and the anode active material layer contains oxygen in an amount from 3 atomic % to 15 atomic % inclusive. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A battery comprising:
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a cathode; an anode; and an electrolyte, wherein, the anode includes an anode current collector and an anode active material layer, the anode active material layer contains silicon and a fluoride of an alkali earth metal, where a content of the fluoride of the alkali earth metal in the anode active material layer is within the range from 0.5 atomic % to 30 atomic %, inclusive, as a total abundance of the alkali earth metal and fluorine, the anode active material layer has a plurality of active material particles, and the anode active material layer contains oxygen in an amount from 3 atomic % to 15 atomic % inclusive.
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22. A battery comprising:
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a cathode; an anode; and an electrolyte, wherein, the anode includes an anode current collector and an anode active material layer, the anode active material layer contains silicon and a flouride of an alkali metal where a content of fluoride is in an amount from 1 atomic % to 40 atomic %, inclusive, as a total abundance of the alkali metal and fluorine the anode active material layer has a plurality of active material particles, and the anode active material layer contains oxygen in an amount from 3 atomic % to 15 atomic % inclusive.
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Specification