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1. (WO2016088837) LITHIUM SECONDARY BATTERY
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2016/088837    International Application No.:    PCT/JP2015/084027
Publication Date: 09.06.2016 International Filing Date: 03.12.2015
IPC:
H01M 4/13 (2010.01), H01M 4/134 (2010.01), H01M 4/38 (2006.01), H01M 4/48 (2010.01), H01M 4/505 (2010.01), H01M 4/525 (2010.01), H01M 4/58 (2010.01), H01M 10/052 (2010.01), H01M 10/0567 (2010.01), H01M 10/0569 (2010.01), H01M 10/058 (2010.01)
Applicants: NEC CORPORATION [JP/JP]; 7-1, Shiba 5-chome, Minato-ku, Tokyo 1088001 (JP)
Inventors: TAKAHASHI, Makiko; (JP).
NOGUCHI, Takehiro; (JP).
KATOU, Yuukou; (JP)
Agent: ITO, Katsuhiro; (JP)
Priority Data:
2014-246181 04.12.2014 JP
Title (EN) LITHIUM SECONDARY BATTERY
(FR) BATTERIE RECHARGEABLE AU LITHIUM
(JA) リチウム二次電池
Abstract: front page image
(EN)Provided is a lithium secondary battery having excellent high-temperature cycle characteristics, which comprises a positive electrode that is capable of absorbing and desorbing lithium, a negative electrode, and an electrolyte solution that contains a nonaqueous electrolyte solvent. This lithium secondary battery is characterized in that: a negative electrode active material contains a compound containing elemental silicon; and the surface of the negative electrode contains a phosphorus compound having a cyclic phosphoric acid ester structure wherein -O-P-O- constitutes a part of the ring structure.
(FR)L'invention concerne une batterie rechargeable au lithium présentant d'excellentes caractéristiques de cycle à haute température, qui comprend une électrode positive qui peut absorber et désorber le lithium, une électrode négative, et une solution électrolytique qui contient un solvant d'électrolyte non aqueux. Cette batterie rechargeable au lithium est caractérisée en ce que : un matériau actif d'électrode négative contient un composé contenant du silicium élémentaire; et la surface de l'électrode négative contient un composé phosphoré ayant une structure d'ester d'acide phosphorique cyclique dans laquelle -O-P-O- constitue une partie de la structure cyclique.
(JA)リチウムを吸蔵・放出することが可能な正極と、負極と、非水電解溶媒を含む電解液と、を有する二次電池であって、負極活物質がシリコン元素を含む化合物を含み、前記負極表面に-O-P-O-を環構成の一部とした環状リン酸エステル構造を有するリン化合物を含有することを特徴とし、高温サイクル特性に優れるリチウム二次電池を提供する。
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 (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: Japanese (JA)
Filing Language: Japanese (JA)