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:
Nov. 04, 2025

Filed:

Aug. 04, 2021
Applicant:

Elevated Materials Us Llc, Santa Clara, CA (US);

Inventors:

Ezhiylmurugan Rangasamy, San Jose, CA (US);

Jean Delmas, Santa Clara, CA (US);

Bernard Frey, Livermore, CA (US);

Subramanya P. Herle, Mountain View, CA (US);

Girish Kumar Gopalakrishnan Nair, San Jose, CA (US);

Assignee:

Elevated Materials US LLC, Santa Clara, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 4/04 (2006.01); H01M 4/133 (2010.01); H01M 4/38 (2006.01); H01M 4/583 (2010.01); H01M 10/0525 (2010.01); H01M 4/02 (2006.01);
U.S. Cl.
CPC ...
H01M 4/0435 (2013.01); H01M 4/0402 (2013.01); H01M 4/133 (2013.01); H01M 4/382 (2013.01); H01M 4/583 (2013.01); H01M 10/0525 (2013.01); H01M 2004/027 (2013.01); H01M 2004/028 (2013.01);
Abstract

A method and system for fabricating a pre-lithiated electrode structure are provided. The method includes supplying a first continuous web substrate from an unwinder roller to a winder roller. The first continuous web substrate includes a layer of lithium metal. The method further includes supplying a second continuous web substrate comprising a layer of patterned anode material adjacent to the first continuous web substrate. The first continuous web substrate and the second continuous web substrate are wound together on the unwinder roller, wherein a surface of the layer of anode material contacts a surface of the layer of lithium metal. Pressure is applied to the first continuous web substrate and the second continuous web substrate to pre-lithiate the patterned anode material, wherein applying pressure comprises tensioning at least one of the unwinder roller and the winder roller.


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