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Pub. No.:    WO/2011/162169    International Application No.:    PCT/JP2011/063869
Publication Date: 29.12.2011 International Filing Date: 17.06.2011
H01M 10/0569 (2010.01), H01M 4/505 (2010.01), H01M 4/525 (2010.01), H01M 10/052 (2010.01)
Applicants: NEC ENERGY DEVICES, LTD. [JP/JP]; 1120, Shimokuzawa, Chuo-ku, Sagamihara-shi, Kanagawa 2525298 (JP) (For All Designated States Except US).
SASAKI, Hideaki [JP/JP]; (JP) (For US Only).
NOGUCHI, Takehiro [JP/JP]; (JP) (For US Only).
KANEKO, Shinako [JP/JP]; (JP) (For US Only)
Inventors: SASAKI, Hideaki; (JP).
NOGUCHI, Takehiro; (JP).
KANEKO, Shinako; (JP)
Agent: MIYAZAKI, Teruo; 8th Floor, 16th Kowa Bldg., 9-20, Akasaka 1-chome, Minato-ku, Tokyo 1070052 (JP)
Priority Data:
2010-144957 25.06.2010 JP
(JA) リチウムイオン二次電池
Abstract: front page image
(EN)A lithium ion secondary battery which meets the requirement [1] of satisfying the formulae (a) to (c) or the requirement [2] of satisfying the formulae (b), (d) and (e), wherein A (μm) represents the average particle diameter of a positive electrode active material, B (vol.%) represents the volume concentration of a fluorinated ether contained in a non-aqueous electrolytic solution, and C (m2/g) represents the specific surface area of the positive electrode active material: (a) 5 ≤ A ≤ 25; (b) 10 ≤ B ≤ 60; (c) 40 ≤ 2A+B ≤ 90; (d) 0.2 ≤ C ≤ 1.2; and (e) -80 ≤ 200C-3B ≤ 150.
(FR)La présente invention concerne une batterie secondaire au lithium-ion, qui satisfait aux conditions [1] des formules (a) à (c) ou aux conditions [2] des formules (b), (d), et (e), A (μm) représentant le diamètre moyen de particule d'un matériau actif d'électrode positive, B (% en volume) représentant la concentration volumique d'un éther fluoré dans une solution d'électrolyte non aqueux, et (C) (m2/g) représentant la surface spécifique du matériau actif d'électrode positive : (a) 5 ≤ A ≤ 25 ; (b) 10 ≤ B ≤ 60 ; (c) 40 ≤ 2A + B ≤ 90 ; (d) 0,2 ≤ C ≤ 1,2 ; et (e) -80 ≤ 200C - 3B ≤ 150.
(JA) 正極活物質の平均粒径をA(μm)、非水電解液中のフッ素化エーテルの体積濃度をB(vol.%)、正極活物質の比表面積をC(m/g)としたとき、条件[1]:下記式(a)~(c)を満たす;または条件[2]:下記式(b)、(d)および(e)を満たす。 5≦A≦25 (a) 10≦B≦60 (b) 40≦2A+B≦90 (c) 0.2≦C≦1.2 (d) -80≦200C-3B≦150 (e)
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, 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, 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, PE, PG, PH, PL, PT, RO, RS, RU, 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, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, 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, ML, MR, NE, SN, TD, TG).
Publication Language: Japanese (JA)
Filing Language: Japanese (JA)