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. 11, 2020
Filed:
Feb. 22, 2017
Toyota Motor Europe, Brussels, BE;
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, Aichi-ken, JP;
TOYOTA MOTOR EUROPE, Brussels, BE;
TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota-shi, Aichi-ken, JP;
Abstract
A method of preparing a lithium-ion cell (), the method including providing to an electrolyte () of the cell, an additive configured to improve formation of a solid electrolyte interface () on an anode (), charging the cell () at a first predetermined charge rate (C) up to a first predetermined voltage (V), wherein the first predetermined voltage (V) corresponds to a voltage at which the additive begins formation of the solid electrolyte interface (), charging the cell () at a second predetermined rate (C) to a second predetermined voltage (V), wherein the second predetermined voltage (V) corresponds to a voltage at which the electrolyte () begins formation of the solid electrolyte interface (); and charging the cell () to a fully charged capacity at a third predetermined charge rate (C), the third charge rate (C) being greater than the second charge rate (C).