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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.

Patent No.:

US 11128020 B1

PDFFull Text
Date of Patent:
Sep. 21, 2021

Filed:

Nov. 15, 2018

Electrode assembly, secondary battery, and method of manufacture

Applicant:

Enovix Corporation, Fremont, CA (US);

Inventors:

Robert S. Busacca, San Francisco, CA (US);

Ashok Lahiri, Cupertino, CA (US);

Murali Ramasubramanian, Fremont, CA (US);

Bruno A. Valdes, Sunnyvale, CA (US);

Gardner Cameron Dales, Los Gatos, CA (US);

Christopher J. Spindt, Menlo Park, CA (US);

Geoffrey Matthew Ho, San Ramon, CA (US);

Harrold J. Rust, III, Alamo, CA (US);

James D. Wilcox, Pleasanton, CA (US);

John F. Varni, Los Gatos, CA (US);

Kim Han Lee, Pleasanton, CA (US);

Nirav S. Shah, Pleasanton, CA (US);

Richard J. Contreras, Campbell, CA (US);

Lynn Van Erden, Pollock Pines, CA (US);

Ken S. Matsubayashi, Fremont, CA (US);

Jeremie J. Dalton, San Jose, CA (US);

Jason Newton Howard, Alpharetta, CA (US);

Robert Keith Rosen, Rocklin, CA (US);

Jonathan C. Doan, Pleasanton, CA (US);

Michael J. Armstrong, Danville, CA (US);

Anthony Calcaterra, Milpitas, CA (US);

Benjamin L. Cardozo, Palo Alto, CA (US);

Joshua David Winans, Mountain View, CA (US);

Neelam Singh, Fremont, CA (US);

Jeffrey Glenn Buck, Salinas, CA (US);

Thomas John Schuerlein, Pleasanton, CA (US);

Kim Lester Fortunati, Pleasanton, CA (US);

Neal Sarswat, Pleasanton, CA (US);

Assignee:

Enovix Corporation, Fremont, CA (US);

Attorney:

Bryan Cave Leighton Paisner LLP

Primary Examiner:

Osei K Amponsah

Int. Cl.
CPC ...
H01M 10/0585 (2010.01); H01M 2/02 (2006.01); H01M 2/26 (2006.01); H01M 10/04 (2006.01); H01M 10/0525 (2010.01); H01M 10/054 (2010.01); H01M 50/54 (2021.01); H01M 4/134 (2010.01); H01M 4/38 (2006.01); H01M 4/48 (2010.01); H01M 4/525 (2010.01); H01M 4/66 (2006.01); H01M 10/0565 (2010.01); H01M 50/46 (2021.01); H01M 50/103 (2021.01); H01M 4/02 (2006.01);
U.S. Cl.
CPC ...
H01M 50/54 (2021.01); H01M 4/134 (2013.01); H01M 4/386 (2013.01); H01M 4/483 (2013.01); H01M 4/525 (2013.01); H01M 4/661 (2013.01); H01M 4/669 (2013.01); H01M 10/0436 (2013.01); H01M 10/054 (2013.01); H01M 10/0525 (2013.01); H01M 10/0565 (2013.01); H01M 10/0585 (2013.01); H01M 50/103 (2021.01); H01M 50/46 (2021.01); H01M 2004/027 (2013.01); H01M 2004/028 (2013.01);
Abstract

Secondary batteries and methods of manufacture thereof are provided. A secondary battery can comprise an offset between electrode and counter-electrode layers in a unit cell. Secondary batteries can be prepared by removing a population of negative electrode subunits from a negative electrode sheet, the negative electrode sheet comprising a negative electrode sheet edge margin and at least one negative electrode sheet weakened region that is internal to the negative electrode sheet edge margin, removing a population of separator layer subunits from a separator sheet, and removing a population of positive electrode subunits from a positive electrode sheet, the positive electrode sheet comprising a positive electrode edge margin and at least one positive electrode sheet weakened region that is internal to the positive electrode sheet edge margin, and stacking members of the negative electrode subunit population, the separator layer subunit population and the positive electrode subunit population.

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