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. 29, 2022
Filed:
Jul. 23, 2019
Chongqing Jinkang Powertrain New Energy Co., Ltd., Chongqing, CN;
Saeed Khaleghi Rahimian, San Jose, CA (US);
Junzhe Shi, Santa Clara, CA (US);
Wenke Zhang, Santa Clara, CA (US);
Ying Liu, Santa Clara, CA (US);
Mehdi Forouzan, Santa Clara, CA (US);
Yifan Tang, Santa Clara, CA (US);
CHONGQING JINKANG POWERTRAIN NEW ENERGY CO., LTD., Chongqing, CN;
Abstract
A physics-based calendar life model for determining the state of health of a lithium ion battery cell. The model accounts for parasitic reactions on anode and cathode particles to accurately determine degradation of a battery. By incorporating electrolyte decomposition in a cathode, the present calendar model can predict capacity retention as well as the substantial rise of cell resistance at high state of charge (SOC) and temperatures. The present calendar model is a simple algorithm, utilizing only three parameters, and determines the capacity retention and resistance rise based on temperature, SOC and time.