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US 2020/0052292 A1Published application
Layered high capacity electrodes
AssigneeSouth Dakota Board of Regents
InventorsDavid R. Salem, Chunhui Chen, Abdulmenan Hussein
Life of this patent
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Abstract
This application relates to anode compositions and methods of making and using the same. In particular, the anode compositions are preferably layered. Preferably, the methods of making the anode compositions comprise a surfactant mediated assembly of layers. The anode compositions have improved structural integrity and capacity while reducing capacity fade due to cycling.
Claims20
An anode composition comprising:
- a graphite core having a surface, wherein the graphite core comprises a graphite particle having a mean diameter in at least one direction of between about 400 nm and about 60 μm;
- a first layer comprising electrochemically active particles attached to the surface of the graphite core.
An anode composition comprising:
- a silicon core having a surface, wherein the silicon core comprises a silicon particle having a mean diameter in at least one direction of between about 400 nm and about 60 μm;
- a first layer comprising graphene particles attached to the surface of the silicon core, wherein the first layer is attached to and partially or fully covering the surface of the silicon core;
- a second layer comprising electrochemically active and/or electronically conductive particles attached to the first layer.
Dependencies are inferred from the claim text.