Electrolyte compositions
AssigneeDyson Technology Limited
InventorsMatthew Robert ROBERTS, Liyu JIN, Yu HU, Laís DIAS FERREIRA, Niccolo GUERRINI, Alex MADSEN
Life of this patent
Estimating the term…
Abstract
An electrolyte composition for a lithium ion battery. The composition includes 5-25 wt % of lithium salt, 2-10 wt % of additive and 65-93 wt % of solvent. The lithium salt includes 20-100 mol % lithium tetrafluoroborate, and 0-95 mol % lithium bis(trifluoromethanesulfonyl)imide; (b) the additive includes vinylene carbonate, and optionally 30-90 mol % fluoroethylene carbonate; and (c) the solvent includes 70-90 mol % ethylene carbonate and 10-30 mol % propylene carbonate.
Claims10
An electrolyte composition for a lithium ion battery, the composition comprising 5-25 wt % of lithium salt, 2-10 wt % of additive and 65-93 wt % of solvent;
- and wherein
- (a) the lithium salt comprises 20-100 mol % lithium tetrafluoroborate, and 0-95 mol % lithium bis(trifluoromethanesulfonyl)imide;
- (b) the additive comprises vinylene carbonate, and optionally 30-90 mol % fluoroethylene carbonate;
- and
- (c) the solvent comprises 70-90 mol % ethylene carbonate and 10-30 mol % propylene carbonate.
Dependencies are inferred from the claim text.