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. 29, 2022

Filed:

Feb. 26, 2019
Applicant:

Robert Bosch Gmbh, Stuttgart, DE;

Inventors:

Ram Subbaraman, Sunnyvale, CA (US);

Saravanan Kuppan, Sunnyvale, CA (US);

Assignee:

Robert Bosch GmbH, Stuttgart, DE;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 4/04 (2006.01); H01M 10/0585 (2010.01); H01M 50/406 (2021.01); H01M 50/46 (2021.01); H01M 50/449 (2021.01); H01M 4/139 (2010.01);
U.S. Cl.
CPC ...
H01M 10/0585 (2013.01); H01M 4/0411 (2013.01); H01M 4/0435 (2013.01); H01M 4/0483 (2013.01); H01M 4/139 (2013.01); H01M 50/406 (2021.01); H01M 50/449 (2021.01); H01M 50/46 (2021.01);
Abstract

A method of co-extruding battery components includes forming a first thin film battery component via hot melt extrusion, and forming a second thin film battery component via hot melt extrusion. A surface treatment is applied to a surface region of at least one of the first and second components so that, relative to a remainder of the at least one component, the surface region has at least one of a decreased inter-particle distance, a decreased amount of polymer binder material, and an increased amount of exposed ionically conductive material. The first and second components are fed through a co-extrusion die to form a co-extruded multilayer thin film.


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