US 12,255,305 B2
Atomic layer deposition on high-aspect-ratio electrode structures
Isabelle M. Darolles, Altadena, CA (US); Azin Fahimi, Pasadena, CA (US); Sean A. Mendoza, Alhambra, CA (US); Shannon C. Santana, San Marino, CA (US); Zarui S. Chikneyan, Altadena, CA (US); and Jeffrey L. Arias, Downey, CA (US)
Assigned to CALIFORNIA INSTITUTE OF TECHNOLOGY, Pasadena, CA (US); and SIENZA ENERGY INC., Pasadena, CA (US)
Filed by CALIFORNIA INSTITUTE OF TECHNOLOGY, Pasadena, CA (US); and SIENZA ENERGY INC., Pasadena, CA (US)
Filed on Oct. 12, 2021, as Appl. No. 17/499,181.
Application 17/499,181 is a continuation of application No. PCT/US2020/028309, filed on Apr. 15, 2020.
Claims priority of provisional application 62/957,474, filed on Jan. 6, 2020.
Claims priority of provisional application 62/835,308, filed on Apr. 17, 2019.
Claims priority of provisional application 62/835,344, filed on Apr. 17, 2019.
Prior Publication US 2022/0140307 A1, May 5, 2022
Int. Cl. H01M 4/04 (2006.01); H01M 4/36 (2006.01); H01M 4/505 (2010.01); H01M 4/525 (2010.01); H01M 4/583 (2010.01); H01M 4/62 (2006.01); H01M 4/66 (2006.01); H01M 4/80 (2006.01)
CPC H01M 4/0428 (2013.01) [H01M 4/366 (2013.01); H01M 4/505 (2013.01); H01M 4/525 (2013.01); H01M 4/583 (2013.01); H01M 4/0404 (2013.01); H01M 4/625 (2013.01); H01M 4/663 (2013.01); H01M 4/808 (2013.01)] 16 Claims
OG exemplary drawing
 
1. An anode of a lithium ion battery, comprising:
a substrate, wherein the substrate comprises at least one hole or void, wherein the plurality of vertically aligned carbon nanotubes are not grown in the at least one hole or void, and wherein a perimeter of the at least one hole or void defines an area between 10 and 500 μm2;
a current collector comprising a plurality of vertically aligned carbon nanotubes in a pattern on the substrate, wherein each nanotube of the plurality of vertically aligned carbon nanotubes has an outer surface and a first end, wherein the first end is coupled to the substrate;
an active material layer located on the outer surface of each nanotube of the plurality of vertically aligned carbon nanotubes.