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:
Jun. 27, 2023
Filed:
Jun. 30, 2020
Umicore, Brussels, BE;
Umicore Korea Ltd., Chungnam, KR;
Xin Xia, Cheonan, KR;
Maxime Blangero, Cheonan, KR;
Jing Zhang, Cheonan, KR;
Wenlong Yang, Cheonan, KR;
Jens Paulsen, Daejeon, KR;
UMICORE, Brussels, BE;
UMICORE KOREA, LTD., Chungnam, KR;
Abstract
A lithium secondary cell having an operating voltage ≥4.35V, comprising a cathode comprising a doped LiCoOactive material, an anode comprising graphite, and an electrolyte comprising a carbonate-based solvent, a lithium salt and both a succinonitrile (SN) and a lithium bis(oxalato)borate (LiBOB) additive wherein during the discharge at 45° C. from a state of charge (SOC) of 100% at 4.5V to a SOC of 0 at 3V at a C/10 rate the difference of the SOC at 4.42V and 4.35V is at least 7% but less than 14%, and wherein the active material is doped by at least 0.5 mole % of either one or more of Mn, Mg and Ti.