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. 23, 2022
Filed:
May. 21, 2019
Denso Corporation, Kariya, JP;
Yuta Shimonishi, Kariya, JP;
Shuhei Yoshida, Kariya, JP;
DENSO CORPORATION, Kariya, JP;
Abstract
To provide a battery service life estimation system capable of improving estimation accuracy, a new battery service life estimation system includes an intersection time estimation unit and a service life estimation unit. In view of a relation between a cumulative usage period and a capacity retention0 rate of a secondary battery containing a non-aqueous electrolyte, the intersection time estimation unit estimates a prediction line intersection time tx when an anode service life prediction line intersects with a cathode service life prediction line on a plane coordinate system. The service life estimation unit estimates a battery service life by using the anode service life prediction formula before a point of the prediction line intersection time tx and the cathode service life prediction formula described the prediction line intersection time tx.