US 12,463,256 B2
Cell with a tabless electrode
Kunio Tsuruta, Mountain View, CA (US); Mikel Ehrlich Dermer, Santa Clara, CA (US); and Rajeev Dhiman, Pleasanton, CA (US)
Assigned to Tesla, Inc., Austin, TX (US)
Filed by Tesla, Inc., Austin, TX (US)
Filed on Jan. 13, 2023, as Appl. No. 18/154,748.
Application 18/154,748 is a continuation of application No. 16/673,464, filed on Nov. 4, 2019, granted, now 11,749,842.
Claims priority of provisional application 62/755,685, filed on Nov. 5, 2018.
Prior Publication US 2023/0155183 A1, May 18, 2023
Int. Cl. H01M 10/0587 (2010.01); H01M 4/04 (2006.01); H01M 4/62 (2006.01); H01M 50/538 (2021.01); H01M 50/534 (2021.01)
CPC H01M 10/0587 (2013.01) [H01M 4/0404 (2013.01); H01M 4/624 (2013.01); H01M 50/538 (2021.01); H01M 50/534 (2021.01)] 30 Claims
OG exemplary drawing
 
1. A cell of an energy storage device, the cell comprising:
a first substrate having a proximal end and a distal end, wherein the first substrate comprises a first portion and a second portion, the second portion comprises a conductive material located at the proximal end, the conductive material comprises a plurality of conductive portions, each of the conductive portions comprise a width, and each of the conductive portions are spaced apart from one another by a non-conductive portion;
a second substrate; and
an inner separator disposed between the first substrate and the second substrate;
wherein the first substrate, the inner separator, and the second substrate are rolled about a central axis to form the cell;
wherein each of the spaced apart conductive portions are bent; and
wherein the plurality of the spaced apart conductive portions of the first substrate form a concentric circular pattern.