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:
Nov. 25, 2025
Filed:
May. 02, 2019
Umicore, Brussels, BE;
Syensqo SA, Brussels, BE;
Jihye Kim, Cheonan, KR;
Jens Paulsen, Cheonan, KR;
Areum Park, Cheonan, KR;
Dae-Hyun Kim, Cheonan, KR;
Hee-Sung Gil, Cheonan, KR;
Jean-Sébastien Bridel, Cheonan, KR;
Ji-Hye Won, Brussels, BE;
Moon-Hyung Choi, Brussels, BE;
Mi-Soon Oh, Brussels, BE;
Hyuncheol Lee, Brussels, BE;
Lawrence Alan Hough, Brussels, BE;
Hae-Young Kim, Brussels, BE;
UMICORE, Brussels, BE;
SYENSQO SA, Brussels, BE;
Abstract
A liquid electrolyte lithium secondary battery cell comprising: —a positive electrode material comprising a lithium transition metal-based oxide powder having a general formula Li((Ni(NiMn)Co)A)O, wherein A is a dopant, −0.025≤a≤0.025, 0.18≤x≤0.22, 0.42≤z≤0.52, 1.075<z/y<1.625, x+y+z=1 and k≤0.01; and—an electrolyte composition comprising: a) at least one cyclic carbonate, b) at least one fluorinated acyclic carboxylic acid ester, c) at least one electrolyte salt, d) at least one lithium compound selected from lithium phosphate compounds, lithium boron compounds, lithium sulfonate compounds and mixtures thereof, e) at least one cyclic sulfur compound, and f) optionally at least one cyclic carboxylic acid anhydride.