US 11,811,098 B2
Three-dimensional folded battery unit and methods for manufacturing the same
Guangyi Sun, Los Angeles, CA (US); Janet Hur, Los Angeles, CA (US); Cheolwoong Lim, Los Angeles, CA (US); and Leland Smith, Los Angeles, CA (US)
Assigned to Millibatt, Inc., Los Angeles, CA (US)
Filed by Millibatt, Inc., Los Angeles, CA (US)
Filed on Sep. 7, 2022, as Appl. No. 17/939,866.
Application 17/939,866 is a continuation of application No. 17/407,109, filed on Aug. 19, 2021, granted, now 11,476,549.
Claims priority of provisional application 63/135,203, filed on Jan. 8, 2021.
Claims priority of provisional application 63/067,773, filed on Aug. 19, 2020.
Prior Publication US 2023/0070669 A1, Mar. 9, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. H01M 50/109 (2021.01); H01M 50/417 (2021.01); H01M 50/463 (2021.01); H01M 10/058 (2010.01); H01M 50/534 (2021.01); H01M 4/587 (2010.01); H01M 10/0525 (2010.01); H01M 50/403 (2021.01); H01M 10/0583 (2010.01); H01M 50/411 (2021.01); H01M 4/04 (2006.01); H01M 10/052 (2010.01); H01M 4/02 (2006.01); H01M 50/54 (2021.01)
CPC H01M 50/54 (2021.01) [H01M 4/0404 (2013.01); H01M 4/0419 (2013.01); H01M 4/587 (2013.01); H01M 10/052 (2013.01); H01M 10/058 (2013.01); H01M 10/0525 (2013.01); H01M 10/0583 (2013.01); H01M 50/109 (2021.01); H01M 50/403 (2021.01); H01M 50/411 (2021.01); H01M 50/417 (2021.01); H01M 50/463 (2021.01); H01M 50/534 (2021.01); H01M 2004/027 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A system comprising:
a series of anode collectors;
a set of anode electrodes comprising an anode material arranged on first sides and second sides of anode collectors in the series of anode collectors;
a set of anode interconnects interposed between and electrically coupling adjacent anode collectors, in the series of anode collectors, and folded to locate the series of anode collectors in an anode stack;
a series of cathode collectors;
a set of cathode electrodes comprising a cathode material arranged on first sides and second sides of cathode collectors in the series of cathode collectors;
a set of cathode interconnects:
interposed between and electrically coupling adjacent cathode collectors, in the series of cathode collectors, and
folded to locate cathode collectors, in the series of cathode collectors, in a cathode stack with cathode collectors interdigitated between anode collectors, in the series of anode collectors, in the anode stack; and
a set of separators, each separator, in the set of separators:
arranged between an anode electrode, in the set of anode electrodes, and an adjacent cathode electrode, in the set of cathode electrodes;
defining a discrete structure physically distinct from each other separator in the set of separators; and
configured to transport solvated ions between the anode electrode and the adjacent cathode electrode.