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1. (WO2015125610) LITHIUM ION SECONDARY BATTERY CATHODE AND LITHIUM ION SECONDARY BATTERY USING SAME
Latest bibliographic data on file with the International Bureau   

Pub. No.: WO/2015/125610 International Application No.: PCT/JP2015/053179
Publication Date: 27.08.2015 International Filing Date: 05.02.2015
IPC:
H01M 4/131 (2010.01) ,H01M 4/36 (2006.01) ,H01M 4/505 (2010.01) ,H01M 4/525 (2010.01) ,H01M 4/587 (2010.01) ,H01M 4/62 (2006.01) ,H01M 10/052 (2010.01) ,H01M 10/0567 (2010.01) ,H01M 10/0568 (2010.01)
Applicants: NEC ENERGY DEVICES, LTD.[JP/JP]; 1120, Shimokuzawa, Chuo-ku, Sagamihara-shi, Kanagawa 2525298, JP
Inventors: HAMANAKA, Nobuaki; JP
Agent: MIYAZAKI, Teruo; JP
Priority Data:
2014-03051120.02.2014JP
Title (EN) LITHIUM ION SECONDARY BATTERY CATHODE AND LITHIUM ION SECONDARY BATTERY USING SAME
(FR) CATHODE DE BATTERIE RECHARGEABLE AU LITHIUM-ION ET BATTERIE RECHARGEABLE AU LITHIUM-ION L'UTILISANT
(JA) リチウムイオン二次電池用正極およびそれを用いたリチウムイオン二次電池
Abstract:
(EN) Provided is a lithium ion secondary battery having high capacity retention rate across charge/discharge cycles. A lithium ion secondary battery cathode contains a cathode active material containing a compound indicated by formula (1), Lix(NiyCozAlw)O2 (in formula (1), 0.95 ≤ x ≤ 1.05, 0.70 ≤ y ≤ 0.85, 0.05 ≤ z ≤ 0.20, 0.00 ≤ w ≤ 0.10, and y+z+w = 1), and a compound indicated by formula (2), Li1+uMn2-u/3O4 (in formula (2), 0 ≤ u ≤ 0.05), the content of alkali metal hydroxides in the cathode active material being no greater than 0.15 mass%.
(FR) L'invention concerne une batterie rechargeable au lithium-ion ayant un taux de retenue de capacité élevé au cours de cycles de charge/décharge. Une cathode de batterie rechargeable au lithium-ion contient un matériau actif de cathode contenant un composé indiqué par la formule (1), Lix(NiyCozAlw)O2 (dans la formule (1), 0,95 ≤ x ≤ 1,05, 0,70 ≤ y ≤ 0,85, 0,05 ≤ z ≤ 0,20, 0,00 ≤ w ≤ 0,10, et y+z+w = 1)), et un composé indiqué par la formule (2), Li1+uMn2-u/3O4 (dans la formule (2), 0 ≤ u ≤ 0,05), la teneur en hydroxydes de métaux alcalins dans le matériau actif de cathode n'étant pas supérieure à 0,15 % en masse.
(JA)  充放電サイクルにおける容量維持率の高いリチウムイオン二次電池を提供する。下記式(1) Li(NiCoAl)O(式(1)において、0.95≦x≦1.05、0.70≦y≦0.85、0.05≦z≦0.20、0.00≦w≦0.10であり、y+z+w=1である)で示される化合物と、下記式(2) Li1+uMn2-u/3(式(2)において、0≦u≦0.05である)で示される化合物と、を含む正極活物質を含み、前記正極活物質中のアルカリ金属水酸化物の含有量が0.15質量%以下であるリチウムイオン二次電池用正極。
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, 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 Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (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)