US 12,355,072 B2
Multilayer anodes for lithium-based energy storage devices
John C. Brewer, Rochester, NY (US); Paul D. Garman, Pittsford, NY (US); Bernard Philip Gridley, Rochester, NY (US); Robert G. Anstey, Tonawanda, NY (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 Jul. 8, 2024, as Appl. No. 18/765,573.
Application 18/765,573 is a continuation of application No. 17/953,588, filed on Sep. 27, 2022, granted, now 12,068,476.
Application 17/953,588 is a continuation of application No. 16/997,110, filed on Aug. 19, 2020, granted, now 11,489,154, issued on Nov. 1, 2022.
Claims priority of provisional application 62/889,119, filed on Aug. 20, 2019.
Prior Publication US 2024/0363842 A1, Oct. 31, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. H01M 4/36 (2006.01); H01M 4/02 (2006.01); H01M 4/13 (2010.01); H01M 4/38 (2006.01); H01M 4/62 (2006.01); H01M 4/66 (2006.01); H01M 10/0525 (2010.01)
CPC H01M 4/366 (2013.01) [H01M 4/13 (2013.01); H01M 4/38 (2013.01); H01M 4/62 (2013.01); H01M 4/664 (2013.01); H01M 10/0525 (2013.01); H01M 2004/021 (2013.01)] 18 Claims
OG exemplary drawing
 
1. An anode for an energy storage device comprising:
a current collector;
a first lithium storage layer overlaying the current collector;
a first intermediate layer overlaying at least a portion of the first lithium storage layer; and
a second lithium storage layer overlaying the first intermediate layer,
wherein the first lithium storage layer is a continuous porous lithium storage layer comprising a total content of silicon, germanium, or a combination thereof, of at least 40 atomic %,
and wherein the first intermediate layer comprises a first sublayer in contact with an underlying lithium storage layer and a second sublayer overlaying the first sublayer and in contact with an overlying lithium storage layer, the first sublayer having different a chemical composition than the second sublayer.