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1. (WO2007007542) LITHIUM ION SECONDARY BATTERY
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/2007/007542 International Application No.: PCT/JP2006/312728
Publication Date: 18.01.2007 International Filing Date: 26.06.2006
IPC:
H01M 4/02 (2006.01) ,H01M 10/05 (2010.01) ,H01M 4/36 (2006.01) ,H01M 4/505 (2010.01) ,H01M 4/525 (2010.01)
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
M
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
4
Electrodes
02
Electrodes composed of, or comprising, active material
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
M
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
10
Secondary cells; Manufacture thereof
05
Accumulators with non-aqueous electrolyte
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
M
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
4
Electrodes
02
Electrodes composed of, or comprising, active material
36
Selection of substances as active materials, active masses, active liquids
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
M
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
4
Electrodes
02
Electrodes composed of, or comprising, active material
36
Selection of substances as active materials, active masses, active liquids
48
of inorganic oxides or hydroxides
50
of manganese
505
of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
M
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
4
Electrodes
02
Electrodes composed of, or comprising, active material
36
Selection of substances as active materials, active masses, active liquids
48
of inorganic oxides or hydroxides
52
of nickel, cobalt or iron
525
of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
Applicants:
松下電器産業株式会社 Matsushita Electric Industrial Co., Ltd. [JP/JP]; 〒5718501 大阪府門真市大字門真1006番地 Osaka 1006, Oaza Kadoma, Kadoma-shi Osaka 5718501, JP (AllExceptUS)
名倉 健祐 NAKURA, Kensuke; null (UsOnly)
Inventors:
名倉 健祐 NAKURA, Kensuke; null
Agent:
石井 和郎 ISHII, Kazuo; 〒5410041 大阪府大阪市中央区北浜2丁目3番6号 北浜山本ビル Osaka Kitahama-Yamamoto Building 3-6, Kitahama 2-chome Chuo-ku, Osaka-shi, Osaka 5410041, JP
Priority Data:
2005-20201311.07.2005JP
Title (EN) LITHIUM ION SECONDARY BATTERY
(FR) BATTERIE SECONDAIRE AU LITHIUM
(JA) リチウムイオン二次電池
Abstract:
(EN) Disclosed is a lithium ion secondary battery ensuring safety during overcharge and safety at a time when a short circuit occurs due to nail penetration or the like. Specifically disclosed is a lithium ion secondary battery comprising a positive electrode, a negative electrode and a nonaqueous electrolyte solution. The positive electrode contain active material particles containing secondary particles of a lithium complex oxide, and at least some of the secondary particles have a crack. At least the surface layers of the active material particles contain at least one element Me selected from the group consisting of Mn, Al, Mg, Ca, Zr, B, W, Nb, Ta, In, Mo and Sn. The element Me is distributed more in the surface layers of the active material particles than in the inner parts of the particles.
(FR) La présente invention concerne une batterie secondaire au lithium garantissant une sûreté lors de la surcharge et une sûreté au moment où un court-circuit se produit en raison d'une pénétration d'un clou ou analogue. L'invention décrit en particulier une batterie secondaire au lithium comprenant une électrode positive, une électrode négative et une solution d'électrolyte non aqueux. L'électrode positive contient des particules de matière active contenant des particules secondaires d'un oxyde de complexe de lithium, et au moins certaines des particules secondaires présentent une fissure. Au moins les couches superficielles des particules de matière active contiennent au moins un élément Me sélectionné dans le groupe constitué par Mn, Al, Mg, Ca, Zr, B, W, Nb, Ta, In, Mo et Sn. L'élément Me est davantage réparti dans les couches superficielles des particules de matière active que dans les parties internes des particules.
(JA) not available
front page image
Designated States: AE, AG, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BW, BY, BZ, CA, CH, CN, CO, CR, CU, CZ, DE, DK, DM, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, HN, HR, HU, ID, IL, IN, IS, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LV, LY, MA, MD, MG, MK, MN, MW, MX, MZ, NA, NG, NI, NO, NZ, OM, PG, PH, PL, PT, RO, RS, RU, SC, SD, SE, SG, SK, SL, SM, SY, 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, 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, HU, IE, IS, IT, LT, LU, LV, MC, NL, 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)
Also published as:
KR1020080022188US20090081547CN101218698