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:
Nov. 29, 2016
Filed:
Aug. 07, 2014
Applicant:
Motorola Solutions, Inc, Schaumburg, IL (US);
Inventors:
Tee Howe Peh, Butterworth, MY;
Modh Hisham Muddin Bin Che At, Bandar Baharu, MY;
Kah Kheng Khoo, Butterworth, MY;
MacWien Krishnamurthi, Shah Alam, MY;
Poh Huat Low, Bukit Mertajam, MY;
Assignee:
MOTOROLA SOLUTIONS, INC., Chicago, IL (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H02J 7/00 (2006.01); H01M 10/6571 (2014.01); H01M 10/052 (2010.01); H01M 10/48 (2006.01); H01M 10/63 (2014.01); H01M 10/615 (2014.01); H01M 10/623 (2014.01);
U.S. Cl.
CPC ...
H02J 7/0013 (2013.01); H01M 10/052 (2013.01); H01M 10/486 (2013.01); H01M 10/615 (2015.04); H01M 10/623 (2015.04); H01M 10/63 (2015.04); H01M 10/6571 (2015.04); H01M 2220/30 (2013.01); Y02E 60/122 (2013.01);
Abstract
A method and apparatus for a self-heating battery pack uses a battery cells of a first battery cell circuit to power a device. However these battery cells become substantially inoperative below a very cold temperature, so a second battery cell circuit, having a second type of battery cells which can operate at the cold temperature, is used to power a heating element to warm up the first battery cells to a temperature at which they can operate.