US 12,451,476 B2
Electrochemically produced three-dimensional structures for battery electrodes
Moshiel Biton, Tel Aviv-Jaffa (IL); Vladimir Yufit, London (GB); and Farid Tariq, London (GB)
Assigned to Addionics IL Ltd., Tel Aviv-Jaffa (IL)
Appl. No. 17/614,202
Filed by Addionics IL Ltd, Tel Aviv-Jaffa (IL)
PCT Filed May 27, 2020, PCT No. PCT/IL2020/050581
§ 371(c)(1), (2) Date Nov. 24, 2021,
PCT Pub. No. WO2020/240553, PCT Pub. Date Dec. 3, 2020.
Claims priority of application No. 266910 (IL), filed on May 27, 2019.
Prior Publication US 2022/0223829 A1, Jul. 14, 2022
Int. Cl. H01M 10/052 (2010.01); H01M 4/04 (2006.01); H01M 10/0562 (2010.01); H01M 10/0567 (2010.01); H01M 4/80 (2006.01)
CPC H01M 4/0404 (2013.01) [H01M 4/045 (2013.01); H01M 10/052 (2013.01); H01M 10/0562 (2013.01); H01M 10/0567 (2013.01); H01M 4/808 (2013.01); H01M 2300/0068 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A continuous process for manufacturing electrical current collectors, comprising
i) providing a first roll and a second roll for winding a continuous electrically conductive substrate foil having first and second parallel sides;
ii) feeding said substrate to a space between an anode and a cathode, wherein said first side is capable of co-acting as a combined working electrode together with one of said anode and cathode, and a second side capable of co-acting as a combined counter electrode together with the other one of said anode and cathode to close a circuit;
iii) electrochemically depositing metal atoms on a first layer, electrochemically dissolving metal atoms from the first layer, or both, the first layer bondable to said first substrate side in accordance with electrical signals sent to said anode and said cathode by a central managing unit, thereby creating a continuous 3D electrode structure comprising said metal atoms on said substrate; and
iv) winding said 3D structure on said substrate onto said second roll,
thereby obtaining 3D current collectors.