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 11120952 B1

PDF
Full Text
Expired
Date of Patent:
Sep. 14, 2021

Filed:

Jul. 14, 2017
Applicant:

Nanotek Instruments, Inc., Dayton, OH (US);

Inventors:

Aruna Zhamu, Springboro, OH (US);

Bor Z. Jang, Centerville, OH (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01G 11/70 (2013.01); H01G 11/32 (2013.01); H01G 11/28 (2013.01); H01G 11/86 (2013.01); H01G 11/24 (2013.01); H01G 11/02 (2013.01); H01G 11/36 (2013.01); H01G 11/46 (2013.01);
U.S. Cl.
CPC ...
H01G 11/86 (2013.01); H01G 11/02 (2013.01); H01G 11/24 (2013.01); H01G 11/28 (2013.01); H01G 11/32 (2013.01); H01G 11/36 (2013.01); H01G 11/46 (2013.01); H01G 11/70 (2013.01); Y02E 60/13 (2013.01); Y02T 10/70 (2013.01);
Abstract

A process for producing a supercapacitor cell, comprising (a) Assembling a porous cell framework composed of a first conductive foam structure, a second conductive foam structure, and a porous separator, wherein the first and/or second conductive foam structure has a thickness no less than 200 μm and at least 80% by volume of pores; (b) Preparing a first suspension of an anode active material dispersed in a liquid electrolyte and a second suspension of a cathode active material (e.g. graphene sheets) dispersed in a liquid electrolyte; and (c) Injecting the first suspension into pores of the first conductive foam structure to form an anode and injecting second suspension into pores of the second conductive foam structure to form a cathode, wherein the anode active material or the cathode active material constitutes an electrode active material loading >10 mg/cm, preferably >15 mg/cm, more preferably >20 mg/cm.


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