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.:
Date of Patent:
Aug. 31, 2021
Filed:
Oct. 06, 2016
Applicant:
Arcactive Limited, Christchurch, NZ;
Inventors:
John Abrahamson, Christchurch, NZ;
Grigory Isaac Titelman, Christchurch, NZ;
Assignee:
ARCACTIVE LIMITED, Christchurch, NZ;
Primary Examiner:
Int. Cl.
CPC ...
H01M 4/14 (2006.01); H01M 4/68 (2006.01); H01M 10/06 (2006.01); H01M 4/66 (2006.01); H01M 4/62 (2006.01); H01M 4/20 (2006.01);
U.S. Cl.
CPC ...
H01M 4/14 (2013.01); H01M 4/20 (2013.01); H01M 4/625 (2013.01); H01M 4/627 (2013.01); H01M 4/663 (2013.01); H01M 4/68 (2013.01); H01M 10/06 (2013.01); H01M 2220/20 (2013.01); Y02E 60/10 (2013.01); Y02T 10/70 (2013.01);
Abstract
Lead-acid batteries with low water consumption and hydrogen gassing, comprise electrodes of a carbon fibre material having a surface area of less than 50 m/g. The carbon fibre material may also comprise non-carbon functional groups less than 22% by mass in the bulk fibre, and at least 78% carbon by mass in the bulk fibre. The carbon fibre material may be heated to a temperature of at least 1000° C. and cooled in an inert atmosphere to prevent non-carbon functional groups reforming on the carbonised carbon fibre material. The batteries are suitable for use in hybrid vehicles.