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:
Mar. 24, 2026

Filed:

Jun. 11, 2024
Applicant:

South 8 Technologies, Inc., San Diego, CA (US);

Inventors:

Cyrus S. Rustomji, San Diego, CA (US);

Josh Lukens, San Diego, CA (US);

Nick Wayland, Encinitas, CA (US);

Assignee:

South 8 Technologies, Inc., San Diego, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 50/534 (2021.01); H01M 50/107 (2021.01); H01M 50/179 (2021.01); H01M 50/342 (2021.01); H01M 50/545 (2021.01); H01M 50/548 (2021.01); H01M 50/567 (2021.01); H01M 50/578 (2021.01);
U.S. Cl.
CPC ...
H01M 50/534 (2021.01); H01M 50/107 (2021.01); H01M 50/3425 (2021.01); H01M 50/545 (2021.01); H01M 50/548 (2021.01); H01M 50/578 (2021.01); H01M 50/179 (2021.01); H01M 50/567 (2021.01); H01M 2200/20 (2013.01);
Abstract

Disclosed herein is a design for an electrochemical energy-storage device. The device includes an electrode assembly with a separator that separates a positive electrode and a negative electrode. These electrodes and separator are radially coiled about a central axis to form a central void. A positive electrode current collector is in electrical contact with the positive electrode, while a negative electrode current collector is in electrical contact with the negative electrode. A conductive power rod is positioned in the central void and provides structural support to prevent the collapse of the central void. The rod is either: (a) in electrical contact with the positive electrode current collector and provides a low-resistance current path with a positive terminal; or (b) in electrical contact with the negative electrode current collector and provides a low-resistance current path with a negative terminal. Both terminals are electrically isolated from each other.


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