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1. (WO2019042741) FLUORINATED LIQUID ELECTROLYTE FOR ELECTROCHEMICAL CELLS HAVING A LITHIUM METAL ANODE
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Pub. No.: WO/2019/042741 International Application No.: PCT/EP2018/071752
Publication Date: 07.03.2019 International Filing Date: 10.08.2018
IPC:
H01M 10/0569 (2010.01) ,H01M 10/052 (2010.01) ,H01M 10/0567 (2010.01) ,H01M 10/0568 (2010.01) ,H01M 10/42 (2006.01)
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
0564
the electrolyte being constituted of organic materials only
0566
Liquid materials
0569
characterised by the solvents
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
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
0564
the electrolyte being constituted of organic materials only
0566
Liquid materials
0567
characterised by the additives
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
0564
the electrolyte being constituted of organic materials only
0566
Liquid materials
0568
characterised by the solutes
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
42
Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
Applicants:
SOLVAY SA [BE/BE]; Rue de Ransbeek, 310 1120 Bruxelles, BE
Inventors:
MÜLLER, Guillaume; KR
WON, Ji-Hye; KR
LEE, So-Young; KR
LEE, Hyuncheol; KR
HOUGH, Lawrence, Alan; KR
Priority Data:
17189133.601.09.2017EP
Title (EN) FLUORINATED LIQUID ELECTROLYTE FOR ELECTROCHEMICAL CELLS HAVING A LITHIUM METAL ANODE
(FR) ÉLECTROLYTE LIQUIDE FLUORÉ POUR CELLULES ÉLECTROCHIMIQUES COMPORTANT UNE ANODE MÉTALLIQUE AU LITHIUM
Abstract:
(EN) An electrochemical cell comprising: a) at least one anode containing lithium metal as an electrochemically active material, and b) an electrolyte composition comprising: i) at least 50% by weight (wt%) of a solvent mixture with respect to the total weight of the electrolyte composition containing - from 5 to 95 wt% of at least one fluorinated acyclic compound; and - from 95 to 5 wt% of at least one fluorinated cyclic compound with respect to the total weight of the solvent mixture; and ii) at least one lithium salt. The use of said electrolyte composition in an electrochemical cell comprising one anode containing lithium metal as an electrochemically active material allows reducing or suppressing the growth of lithium dendrites on the anode surface and/or stabilizing the solid electrolyte interface layer on the anode surface.
(FR) L'invention concerne une cellule électrochimique comprenant : a) au moins une anode contenant un métal lithium en tant que matériau électrochimiquement actif, et b) une composition d'électrolyte. La composition d'électrolyte comprend : i) au moins 50 % en poids (% poids) d'un mélange de solvants par rapport au poids total de la composition d'électrolyte contenant de 5 à 95 % poids d'au moins un composé acyclique fluoré ; et de 95 à 5 % poids d'au moins un composé cyclique fluoré par rapport au poids total du mélange de solvants ; et ii) au moins un sel de lithium. L'utilisation de ladite composition d'électrolyte dans une cellule électrochimique comprenant une anode contenant un métal lithium en tant que matériau électrochimiquement actif permet de réduire ou de supprimer la croissance de dendrites de lithium sur la surface d'anode et/ou de stabiliser la couche d'interface d'électrolyte solide sur la surface d'anode.
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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)