Anode active material and anode using same, electrochemical device and electronic device
AssigneeNingde Amperex Technology Limited
InventorsDaoyi Jiang, Hang Cui, Yuansen Xie
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Abstract
The present application relates to an anode active material and an anode, an electrochemical device and an electronic device using same. Specifically, the present application provides an anode active material, including a lithiated silicon-oxygen material and a coating layer, where there is at least a Si—O-M bond between the coating layer and the lithiated silicon-oxygen material, where M is selected from one or more of an aluminum element, a boron element and a phosphorus element. The anode active material of the present application has high stability and is suitable for aqueous processing to be prepared into an anode.
Claims18
An anode active material, comprising a lithiated silicon-oxygen material and a coating layer formed on the lithiated silicon-oxygen material,
- wherein there is at least a Si—O-M bond between the coating layer and the lithiated silicon-oxygen material,
- wherein M is selected from one or more of an aluminum element, a boron element, and a phosphorus element, and
- wherein the coating layer comprises a compound containing one or more of a phosphorous element, an aluminum element, or a boron.
An anode, comprising a substrate and an anode active material comprising a lithiated silicon-oxygen material and a coating layer formed on the lithiated silicon-oxygen material,
- wherein there is at least a Si—O-M bond between the coating layer and the lithiated silicon-oxygen material,
- wherein M is selected from one or more of an aluminum element, a boron element, and a phosphorus element, and
- wherein the coating layer comprises a compound containing one or more of a phosphorous element, an aluminum element, or a boron element.
Dependencies are inferred from the claim text.