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US 12,469,841 B2Granted
Lithium ion battery anodes including graphenic carbon particles
AssigneePPG Industries Ohio, Inc.
InventorsNoel R. Vanier, David B. Asay, Kurt G. Olson, Edward F. Rakiewicz, Donghai Wang, Ran Yi
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Abstract
Lithium ion battery anodes including graphenic carbon particles are disclosed. Lithium ion batteries containing such anodes are also disclosed. The anodes include mixtures of lithium-reactive metal particles such as silicon, graphenic carbon particles, and a binder. The use of graphenic carbon particles in the anodes results in improved performance of the lithium ion batteries.
Claims20
A lithium ion battery anode material comprising:
- lithium-reactive metal particles;
- graphenic carbon particles comprising substantially flat planar sheets having aspect ratios of greater than 3:1, having at least 3 stacked atom layers, and having a Raman spectroscopy 2D/G peak ratio of at least 1:1;
- and
- a binder.
1 more element
A lithium ion battery comprising:
- an anode;
- a cathode;
- a separator between the anode and the cathode;
- and
- an electrolyte in contact with the anode and the cathode, wherein the anode comprises lithium-reactive metal particles, graphenic carbon particles comprising substantially flat planar sheets having aspect ratios of greater than 3:1, having at least 3 stacked atom layers, and having a Raman spectroscopy 2D/G peak ratio of at least 1:1, and a binder.
2 more elements
Dependencies are inferred from the claim text.