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1. (WO2017131676) ANNEALED GARNET ELECTROLYTE SEPARATORS
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/2017/131676 International Application No.: PCT/US2016/015209
Publication Date: 03.08.2017 International Filing Date: 27.01.2016
IPC:
H01M 2/14 (2006.01) ,H01M 2/16 (2006.01) ,H01M 10/0562 (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
2
Constructional details, or processes of manufacture, of the non-active parts
14
Separators; Membranes; Diaphragms; Spacing elements
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
M
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
2
Constructional details, or processes of manufacture, of the non-active parts
14
Separators; Membranes; Diaphragms; Spacing elements
16
characterised by the material
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
0561
the electrolyte being constituted of inorganic materials only
0562
Solid materials
Applicants:
QUANTUMSCAPE CORPORATION [US/US]; 1730 Technology Drive San Jose, California 95110, US
Inventors:
CHENG, Lei; US
IYER, Sriram; US
GARDNER, Will; US
HOLME, Tim; US
LI, Shuang; US
CHAO, Cheng-chieh; US
DONNELLY, Niall; US
ALLENIC, Arnold; US
Agent:
OSTOMEL, Todd; US
Priority Data:
Title (EN) ANNEALED GARNET ELECTROLYTE SEPARATORS
(FR) SÉPARATEURS D’ÉLECTROLYTE À GRENAT RECUIT
Abstract:
(EN) Set forth herein are pellets, thin films, and monoliths of lithium-stuffed garnet electrolytes having engineered surfaces. These engineered surfaces have a list of advantageous properties including, but not limited to, low surface area resistance, high Li+ ion conductivity, low tendency for lithium dendrites to form within or thereupon when the electrolytes are used in an electrochemical cell. Other advantages include voltage stability and long cycle life when used in electrochemical cells as a separator or a membrane between the positive and negative electrodes. Also set forth herein are methods of making these electrolytes including, but not limited to, methods of annealing these electrolytes under controlled atmosphere conditions. Set forth herein, additionally, are methods of using these electrolytes in electrochemical cells and devices. The instant disclosure further includes electrochemical cells which incorporate the lithium-stuffed garnet electrolytes set forth herein.
(FR) L’invention concerne des pastilles, des films minces et des monolithes d’électrolytes à grenat remplis au lithium, ayant des surfaces travaillées. Ces surfaces travaillées ont différentes propriétés avantageuses telles que, entre autres, une faible résistance de surface, une conductivité élevée des ions Li +, une tendance à la formation de dendrites de lithium dans ou sur ces surfaces qui reste faible lorsque les électrolytes sont utilisés dans une cellule électrochimique. D’autres avantages sont la stabilité de tension et une longue durée de vie lors d’une utilisation dans des cellules électrochimiques comme séparateurs ou comme membranes entre les électrodes positive et négative. L’invention concerne également des procédés de fabrication de ces électrolytes comprenant, entre autres, des procédés de recuit de ces électrolytes sous atmosphère contrôlée. L’invention concerne également des procédés d’utilisation de ces électrolytes dans des cellules électrochimiques et des dispositifs. La présente invention comprend en outre des cellules électrochimiques qui contiennent les électrolytes à grenat remplis au lithium décrits ici.
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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, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JP, KE, KG, KN, KP, KR, 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 Organization (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (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)
Also published as:
EP3411914