The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jun. 17, 2025

Filed:

Jun. 12, 2024
Applicant:

24m Technologies, Inc., Cambridge, MA (US);

Inventors:

Junzheng Chen, Concord, MA (US);

Naoki Ota, Lexington, MA (US);

Chad Alan Hartzog, Columbus, IN (US);

Xiaoming Liu, Newton, MA (US);

Michelle Robyn Brouwer, Woburn, MA (US);

Anthony D'Angelo, Medford, MA (US);

Daniel Salazar, Brookline, MA (US);

Timothy Allen Hans, Perry, FL (US);

Junhua Song, Watertown, MA (US);

Assignee:

24M Technologies, Inc., Cambridge, MA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 10/42 (2006.01); H01M 10/0562 (2010.01); H01M 10/44 (2006.01); H01M 10/48 (2006.01); H01M 50/431 (2021.01); H01M 50/449 (2021.01); H02J 7/00 (2006.01);
U.S. Cl.
CPC ...
H01M 10/4235 (2013.01); H01M 10/0562 (2013.01); H01M 10/425 (2013.01); H01M 10/44 (2013.01); H01M 10/48 (2013.01); H01M 50/431 (2021.01); H01M 50/449 (2021.01); H02J 7/0047 (2013.01); H01M 2010/4271 (2013.01); H01M 2200/00 (2013.01); H01M 2300/0068 (2013.01);
Abstract

Embodiments described herein relate to electrochemical cells with dendrite prevention mechanisms. In some aspects, an electrochemical cell can include an anode disposed on an anode current collector, a cathode disposed on a cathode current collector, the cathode having a first thickness at a proximal end of the cathode and a second thickness at a distal end of the cathode, the second thickness greater than the first thickness, a first separator disposed on the anode, a second separator disposed on the cathode, an interlayer disposed between the first separator and the second separator, the interlayer including electroactive material and having a proximal end and a distal end, and a power source electrically connected to the proximal end of the cathode and the proximal end of the interlayer, the power source configured to maintain a voltage difference between the cathode and the interlayer below a threshold value.


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