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:
Mar. 13, 2018
Filed:
Aug. 28, 2015
Apple Inc., Cupertino, CA (US);
Daniel W. Jarvis, Cupertino, CA (US);
David M. DeMuro, Cupertino, CA (US);
Hongli Dai, Cupertino, CA (US);
Julian Malinski, Miami Beach, FL (US);
Julien Marcil, Cupertino, CA (US);
Meng Chi Lee, Cupertino, CA (US);
Richard Hung Minh Dinh, Cupertino, CA (US);
Rishabh Bhargava, Oakland, CA (US);
Steven D. Sterz, Cupertino, CA (US);
Richard M. Mank, Cupertino, CA (US);
Soundararajan Manthiri, Cupertino, CA (US);
Vijayasekaran Boovaragavan, Cupertino, CA (US);
APPLE INC., Cupertino, CA (US);
Abstract
Methods and systems for detecting and compensating for expansion of rechargeable batteries over time. An expansion detector may be coupled to or positioned proximate a rechargeable battery to monitor for expansion thereof. After expansion exceeding a selected threshold is detected, the expansion detector may report the expansion to an associated processing unit. The processing unit may undertake to arrest further rechargeable battery expansion by modifying or changing one or more characteristics of charging and/or discharging circuitry coupled to the rechargeable battery. For example, the processing unit may charge the rechargeable battery at a lower rate or with reduced voltage after detecting expansion.