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US 2024/0178374 A1Published application
Fast charging pre-lithiated silicon anode
AssigneeLivent USA Corp.
InventorsMarina Yakovleva, Kenneth Brian Fitch, Jian Xia
Life of this patent
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Abstract
A battery having a cathode and an anode with a three-dimensional porous framework. The anode includes an anode active material lithiated with a lithium source. The lithium particles from the lithium source are alloyed or intercalated with the anode active material during diffusion to form the three-dimensional porous framework. The porous framework provides reduced electrode deterioration due to volume expansion.
Claims8
A battery comprising:
- a cathode;
- and
- an anode comprising a silicon active material lithiated with a printable lithium composition comprised of a lithium metal powder, a polymer binder compatible with the lithium metal powder, a carbon-based rheology modifier compatible with the lithium metal powder, and a non-polar solvent compatible with the lithium metal powder and with the polymer binder;
- wherein a surface of the silicon active material is alloyed with lithium particles diffused from the printable lithium composition to form a porous structure within the anode that provides improved rate capability between about 20 to 50% at a 1 C charge rate compared to a non-lithiated silicon anode.
1 more element
Dependencies are inferred from the claim text.