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1. (WO2001003228) NONAQUEOUS ELECTROLYTE SECONDARY CELL
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2001/003228    International Application No.:    PCT/JP2000/004293
Publication Date: 11.01.2001 International Filing Date: 29.06.2000
Chapter 2 Demand Filed:    02.11.2000    
IPC:
H01M 10/05 (2010.01), H01M 10/0525 (2010.01), H01M 10/0567 (2010.01), H01M 10/0569 (2010.01), H01M 6/16 (2006.01)
Applicants: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. [JP/JP]; 1006, Oaza Kadoma, Kadoma-shi, Osaka 571-8501 (JP) (For All Designated States Except US).
MITSUBISHI CHEMICAL CORPORATION [JP/JP]; 5-2, Marunouchi 2-chome, Chiyoda-ku, Tokyo 100-0005 (JP) (For All Designated States Except US).
OURA, Takafumi [JP/JP]; (JP) (For US Only).
IWAMOTO, Kazuya [JP/JP]; (JP) (For US Only).
NAKANISHI, Shinji [JP/JP]; (JP) (For US Only).
UEDA, Atsushi [JP/JP]; (JP) (For US Only).
KOSHINA, Hizuru [JP/JP]; (JP) (For US Only)
Inventors: OURA, Takafumi; (JP).
IWAMOTO, Kazuya; (JP).
NAKANISHI, Shinji; (JP).
UEDA, Atsushi; (JP).
KOSHINA, Hizuru; (JP)
Agent: ASAMURA, Kiyoshi; New Ohtemachi Building, Room 331, 2-1, Ohtemachi 2-chome, Chiyoda-ku, Tokyo 100-0004 (JP)
Priority Data:
11/188740 02.07.1999 JP
Title (EN) NONAQUEOUS ELECTROLYTE SECONDARY CELL
(FR) ELEMENT D'ACCUMULATEUR SECONDAIRE A ELECTROLYTE NON AQUEUX
Abstract: front page image
(EN)A nonaqueous electrolyte secondary cell, wherein an electrolyte comprises a cyclic carboxylic acid ester as a nonaqueous solvent and further comprises a cyclic carbonic acid ester having at least one carbon-carbon unsaturated bond. A cyclic carboxylic acid ester exhibits a high electrical conductivity under low temperature circumstances and the cyclic carbonic acid ester is added for the purpose of suppressing the reduction decomposition of the cyclic carboxylic acid ester.
(FR)Cette invention se rapporte à un élément d'accumulateur secondaire à électrolyte non aqueux, dont l'électrolyte comprend un ester d'acide carboxylique cyclique comme solvant non aqueux et contient en outre un ester d'acide carbonique cyclique ayant au moins une liaison insaturée carbone-carbone. Un ester d'acide carboxylique cyclique possède une conductivité électrique élevée dans des conditions de basse température et l'ester d'acide carbonique cyclique est ajouté afin de supprimer la décomposition par réduction de l'ester d'acide carboxylique cyclique.
Designated States: CN, KR, US.
European Patent Office (AT, BE, CH, CY, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE).
Publication Language: Japanese (JA)
Filing Language: Japanese (JA)