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1. (WO2007098369) LOW TEMPERATURE ELECTROCHEMICAL CELL
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2007/098369    International Application No.:    PCT/US2007/062243
Publication Date: 30.08.2007 International Filing Date: 15.02.2007
IPC:
H01M 10/36 (2010.01)
Applicants: CALIFORNIA INSTITUTE OF TECHNOLOGY [US/US]; 1200 East California Boulevard, MC 201-85, Pasadena, CA 91125 (US) (For All Designated States Except US).
CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE (C.N.R.S.) [FR/FR]; 3 rue Michel-Ange, Cedex 16, F-75794 Paris (FR) (For All Designated States Except US).
UNIVERSITE BLAISE PASCAL [FR/FR]; 34, Avenue Carnot, BP 185 F-63006 Clermont-Ferrand Cedex 1 (FR) (For All Designated States Except US).
WHITACRE, Jay F. [US/US]; (US) (For US Only).
YAZAMI, Rachid [FR/US]; (US) (For US Only).
BUGGA, Ratnakumar V. [US/US]; (US) (For US Only).
PRAKASH, Surya G. [US/US]; (US) (For US Only).
SMART, Marshall C. [US/US]; (US) (For US Only).
WEST, William C. [US/US]; (US) (For US Only).
HAMWI, André [FR/FR]; (FR) (For US Only)
Inventors: WHITACRE, Jay F.; (US).
YAZAMI, Rachid; (US).
BUGGA, Ratnakumar V.; (US).
PRAKASH, Surya G.; (US).
SMART, Marshall C.; (US).
WEST, William C.; (US).
HAMWI, André; (FR)
Agent: BARONE, Stephen B.; Greenlee, Winner And Sullivan, P.C., 4875 Pearl East Circle, Suite 200, Boulder, CO 80301 (US)
Priority Data:
60/774,262 16.02.2006 US
60/784,960 20.03.2006 US
60/784,957 21.03.2006 US
60/798,532 08.05.2006 US
60/900,409 09.02.2007 US
Title (EN) LOW TEMPERATURE ELECTROCHEMICAL CELL
(FR) PILE ÉLECTROCHIMIQUE BASSE TEMPÉRATURE
Abstract: front page image
(EN)The present invention provides electrochemical cells providing good electronic performance at low temperatures. Electrochemical cells of the present invention include lithium batteries capable of providing useful specific capacities under significant discharge rates for temperatures as low as -60 degrees Celsius. The present invention also provides methods for making electrochemical cells including a room temperature predischarge step preceding low temperature operation that enhances the performance of batteries having subfluorinated carbonaceous positive electrode active materials at low temperatures.
(FR)L'invention concerne des piles électrochimiques d'une bonne efficacité électronique à basses températures. Ces piles électrochimiques comportent des accumulateurs au lithium pouvant fournir des capacités spécifiques utiles à des vitesses de décharge importantes à des températures aussi basses que -60°C. L'invention concerne également des procédés de fabrication de piles électrochimiques comportant une étape de décharge préalable à température ambiante précédant le fonctionnement à basse température qui améliore l'efficacité des accumulateurs ayant des matériaux actifs d'électrodes positives carbonées sous-fluorées à basses températures.
Designated States: AE, AG, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BW, BY, BZ, CA, CH, CN, CO, CR, CU, CZ, DE, DK, DM, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LV, LY, MA, MD, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PG, PH, PL, PT, RO, RS, RU, SC, SD, SE, SG, SK, SL, SM, SV, SY, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW.
African Regional Intellectual Property Organization (BW, GH, GM, KE, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HU, IE, IS, IT, LT, LU, LV, MC, NL, PL, PT, RO, SE, SI, SK, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG).
Publication Language: English (EN)
Filing Language: English (EN)