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Pub. No.:    WO/2016/098708    International Application No.:    PCT/JP2015/084827
Publication Date: 23.06.2016 International Filing Date: 11.12.2015
H01M 4/525 (2010.01), H01M 4/36 (2006.01), H01M 4/505 (2010.01), H01M 4/587 (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: AZAMI, Takeshi; (JP)
Agent: ITO, Katsuhiro; (JP)
Priority Data:
2014-254122 16.12.2014 JP
2015-061426 24.03.2015 JP
(JA) リチウムイオン二次電池
Abstract: front page image
(EN)Provided is a lithium-ion secondary cell in which a lithium-nickel composite oxide having a high Ni content is included in a positive electrode, wherein the lithium-ion secondary cell has excellent cycle characteristics at high temperatures. This lithium-ion secondary cell is provided with a positive electrode, a negative electrode, and an electrolyte, and is characterized in that the positive electrode contains the lithium-nickel composite oxide represented by general formula LiNixCoyMnzO2 (x, y, and z are within the ranges, respectively, 0.75 ≤ x ≤ 0.85, 0.05 ≤ y ≤ 0.15, and 0.10 ≤ z ≤ 0.20.)
(FR)L'invention concerne une batterie rechargeable au lithium-ion incluant un oxyde composite de lithium-nickel ayant une teneur élevée en Ni dans une électrode positive, laquelle batterie rechargeable au lithium-ion a d'excellentes caractéristiques de cycle à des températures élevées. Cette batterie rechargeable au lithium-ion est munie d'une électrode positive, d'une électrode négative, et d'un électrolyte, et est caractérisée en ce que l'électrode positive contient l'oxyde composite de lithium-nickel représenté par la formule générale LiNixCoyMnzO2 (x, y, et z sont respectivement dans les plages suivantes, 0,75 ≤ x ≤ 0,85, 0,05 ≤ y ≤ 0,15, et 0,10 ≤ z ≤ 0,20).
(JA) Ni含有量の高いリチウムニッケル複合酸化物を正極に含むリチウム二次電池において、高温度で優れたサイクル特性を有するリチウムイオン二次電池を提供する。本発明のリチウムイオン二次電池は、正極、負極および電解液を備えるリチウムイオン二次電池であって、正極が一般式LiNiCoMn(x、y、zはそれぞれ0.75≦x≦0.85、0.05≦y≦0.15、0.10≦z≦0.20の範囲である。)で表されるリチウムニッケル複合酸化物を含むことを特徴とする。
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)