US 12,255,315 B2
Anode structures having a multiple supplemental layers
Robert G. Anstey, Tonawanda, NY (US); William P. McKenna, Rochester, NY (US); John M. Pochan, Penfield, NY (US); Bernard Philip Gridley, Walworth, NY (US); John C. Brewer, Rochester, NY (US); Paul D. Garman, Westerville, OH (US); and Kevin Tanzil, Rochester, NY (US)
Assigned to Graphenix Development, Inc., Williamsville, NY (US)
Filed by Graphenix Development, Inc., Williamsville, NY (US)
Filed on Jan. 12, 2022, as Appl. No. 17/573,886.
Claims priority of provisional application 63/137,440, filed on Jan. 14, 2021.
Prior Publication US 2022/0223841 A1, Jul. 14, 2022
Int. Cl. H01M 4/38 (2006.01); H01M 4/04 (2006.01); H01M 4/36 (2006.01); H01M 4/58 (2010.01); H01M 4/62 (2006.01); H01M 10/0525 (2010.01); H01M 4/02 (2006.01)
CPC H01M 4/366 (2013.01) [H01M 4/0428 (2013.01); H01M 4/386 (2013.01); H01M 4/58 (2013.01); H01M 4/626 (2013.01); H01M 10/0525 (2013.01); H01M 2004/021 (2013.01); H01M 2004/025 (2013.01); H01M 2004/027 (2013.01)] 21 Claims
OG exemplary drawing
 
1. An anode for an energy storage device comprising:
a current collector comprising an electrically conductive layer;
a plurality of lithium storage filamentary structures in contact with the electrically conductive layer; and
a plurality of supplemental layers for each lithium storage filamentary structure of the plurality of lithium storage filamentary structures, wherein:
a first supplemental layer overlays at least a portion of the respective filamentary structure, the first supplemental layer comprising silicon nitride or a first metal compound, wherein the first metal compound comprises a metal oxide, a metal nitride, a metal oxynitride, a lithium-containing material, or a metalcone,
a second supplemental layer overlays at least a portion of the first supplemental layer, the second supplemental layer having a composition different from the first supplemental layer and comprising silicon nitride or a second metal compound, wherein the second metal compound comprises a metal oxide, a metal nitride, a metal oxynitride, a lithium-containing material, or a metalcone, and
a third supplemental layer overlaying at least a portion of the second supplemental layer, the third supplemental layer having a composition different from the second supplemental layer and comprising silicon nitride or a third metal compound.