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1. (WO2019025980) NOVEL BATTERY SYSTEMS BASED ON LITHIUM DIFLUOROPHOSPHATE
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Pub. No.: WO/2019/025980 International Application No.: PCT/IB2018/055745
Publication Date: 07.02.2019 International Filing Date: 31.07.2018
IPC:
H01M 10/056 (2010.01) ,H01M 10/0525 (2010.01)
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
M
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
10
Secondary cells; Manufacture thereof
05
Accumulators with non-aqueous electrolyte
056
characterized by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
M
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
10
Secondary cells; Manufacture thereof
05
Accumulators with non-aqueous electrolyte
052
Li-accumulators
0525
Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
Applicants:
TESLA MOTORS CANADA ULC [CA/CA]; 1325 Lawrence Avenue E North York, Ontario M3A 1C6, CA
Inventors:
MA, Lin; CA
MA, Xiaowei; CA
GLAZIER, Stephen, Laurence; CA
LI, Jing; CA
DAHN, Jeffery R.; CA
Agent:
TISDALL, Grant W.C.; Gowling WLG 100 King Street West, Suite 1600 Toronto M5X 1G5, CA
Priority Data:
15/663,97631.07.2017US
62/565,98529.09.2017US
Title (EN) NOVEL BATTERY SYSTEMS BASED ON LITHIUM DIFLUOROPHOSPHATE
(FR) NOUVEAUX SYSTÈMES DE BATTERIE À BASE DE DIFLUOROPHOSPHATE DE LITHIUM
Abstract:
(EN) A nonaqueous electrolyte for a lithium ion battery includes a lithium salt, a first nonaqueous solvent, and an additive mixture comprising a first operative additive of lithium difluorophosphate and a second operative additive of either fluoro ethylene carbonate or vinylene carbonate. A lithium-ion battery includes a negative electrode, a positive electrode comprising NMC with micrometer-scale grains, a nonaqueous electrolyte having lithium ions dissolved in a first nonaqueous solvent, and an additive mixture having a first operative additive of either fluoro ethylene carbonate or vinylene carbonate and a second operative additive of either 1,3,2-dioxathiolane-2,2-dioxide, another sulfur-containing additive, or lithium difluorophosphate.
(FR) Un électrolyte non aqueux pour une batterie au lithium-ion comprend un sel de lithium, un premier solvant non aqueux et un mélange d'additifs comprenant un premier additif fonctionnel de difluorophosphate de lithium et un second additif fonctionnel de carbonate d'éthylène fluoré ou de carbonate de vinylène. Une batterie au lithium-ion comprend une électrode négative, une électrode positive comprenant du NMC avec des grains à échelle micrométrique, un électrolyte non aqueux ayant des ions lithium dissous dans un premier solvant non aqueux, et un mélange d'additifs ayant un premier additif fonctionnel de carbonate d'éthylène fluoré ou de carbonate de vinylène et un second additif fonctionnel constitué soit de 1,3,2-dioxathiolane-2,2-dioxyde, d'un autre additif contenant du soufre, soit du difluorophosphate de lithium.
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)