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Pub. No.:    WO/2009/142251    International Application No.:    PCT/JP2009/059301
Publication Date: 26.11.2009 International Filing Date: 14.05.2009
H01M 10/36 (2010.01)
Applicants: NEC Corporation [JP/JP]; 7-1, Shiba 5-chome, Minato-ku, Tokyo 1088001 (JP) (For All Designated States Except US).
NEC Energy Devices, Ltd. [JP/JP]; 1120, Shimokuzawa, Chuo-ku, Sagamihara-shi, Kanagawa 2525298 (JP) (For All Designated States Except US).
MATSUMOTO, Kazuaki [JP/JP]; (JP) (For US Only).
NAKAHARA, Kentaro [JP/JP]; (JP) (For US Only).
IWASA, Shigeyuki [JP/JP]; (JP) (For US Only).
ISHIKAWA, Hitoshi [JP/JP]; (JP) (For US Only).
KANEKO, Shinako [JP/JP]; (JP) (For US Only).
UTSUGI, Koji [JP/JP]; (JP) (For US Only)
Inventors: MATSUMOTO, Kazuaki; (JP).
NAKAHARA, Kentaro; (JP).
IWASA, Shigeyuki; (JP).
ISHIKAWA, Hitoshi; (JP).
KANEKO, Shinako; (JP).
UTSUGI, Koji; (JP)
Agent: IKEDA, Noriyasu; Hibiya Daibiru Bldg., 2-2, Uchisaiwaicho 1-chome, Chiyoda-ku, Tokyo 1000011 (JP)
Priority Data:
2008-131050 19.05.2008 JP
2008-233574 11.09.2008 JP
(JA) 二次電池
Abstract: front page image
(EN)Disclosed is a highly safe secondary battery.  In the secondary battery, a positive electrode is composed of an oxide which adsorbs/desorbs lithium ions; a negative electrode is composed of a carbon material which adsorbs/desorbs lithium ions; and an electrolyte solution is composed of an ionic liquid and a phosphate ester derivative.  Consequently, the secondary battery can be highly safe.  Since a phosphate ester and an ionic liquid are contained at the same time, high discharge capacity can be maintained even when the phosphate ester is used at a high concentration.
(FR)L'invention porte sur une batterie secondaire très sûre. Dans la batterie secondaire, une électrode positive est composée d'un oxyde qui adsorbe/désorbe des ions lithiums ; une électrode négative est composée d'un matériau carboné qui adsorbe/désorbe des ions lithiums ; et une solution électrolytique est composée d'un liquide ionique et d'un dérivé d'ester de phosphate. En conséquence, la batterie secondaire peut être très sûre. Etant donné qu'un ester de phosphate et qu'un liquide ionique sont contenus en même temps, une capacité de décharge élevée peut être maintenue même lorsque l'ester de phosphate est utilisé à une concentration élevée.
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BR, BW, BY, BZ, CA, CH, 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, IS, JP, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LY, MA, MD, ME, 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, ST, 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, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, 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: Japanese (JA)
Filing Language: Japanese (JA)