	US 11,757,133 B2
	Lithium salt mixture and uses thereof as a battery electrolyte
Grégory Schmidt, St Andéol le Château (FR)
Assigned to Arkema France, Colombes (FR)
Appl. No. 16/630,223
Filed by Arkema France, Colombes (FR)
PCT Filed Jul. 26, 2018, PCT No. PCT/FR2018/051912 § 371(c)(1), (2) Date Jan. 10, 2020, PCT Pub. No. WO2019/030440, PCT Pub. Date Feb. 14, 2019.
Claims priority of application No. 1757559 (FR), filed on Aug. 7, 2017.
Prior Publication US 2021/0151798 A1, May 20, 2021
Int. Cl. H01M 10/0568 (2010.01); H01M 10/0525 (2010.01); H01M 10/0567 (2010.01); H01M 10/0569 (2010.01)

CPC H01M 10/0568 (2013.01) [H01M 10/0525 (2013.01); H01M 10/0567 (2013.01); H01M 10/0569 (2013.01); H01M 2300/0037 (2013.01); Y02E 60/10 (2013.01)]

12 Claims

1. An electrolyte composition, comprising:

(i) at least three lithium salts, the at least three lithium salts being:

lithium bis(fluorosulfonyl)imide;

from 5 mol % to 40 mol % lithium 2-trifluoromethyl-4,5-dicyanoimidazolate; and

lithium hexafluorophosphate;

(ii) only one solvent or solvent mixture consisting of ethers, carbonates, esters, ketones, partially hydrogenated hydrocarbons, nitriles, amides, alcohols, nitromethane, 1,3-dimethyl-2-imidazolidinone, 1,3-dimethyl-3,4,5,6-tetrahydro-2(1H)-pyrimidinone and 3-methyl-2-oxazolidinone; and

(iii) optionally at least one electrolytic additive.