Title:
NONAQUEOUS SECONDARY BATTERY
Document Type and Number:
Japanese Patent JP3704780
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To obtain high discharging voltage to improve charging/ discharging cycle characteristic, by using negative and/or positive electrodes, containing the solid fine particle of an insulator having the specific surface area by a BET method of specific m2/g, and a nonaqueous electrolyte containing lithium salt.
SOLUTION: A scalelike graphite and acetylen black, etc., are mixed into a compound containing a solid fine particle such as &phiv , α, active alumina, and TiO2, etc., having a specific surface area by a BET method of 30-300m2/g or less. Slurry, wherein a binding agent and water are kneaded into the compund, is applied onto copper foil to be dried, thereby obtaining a negative electrode sheet 9. Also, slurry, wherein LICoO2, scalelike graphite, acetylene black, the binding agent, and water are kneaded, is applied onto the Al foil to be dried thereby obtaining a positive electrode sheet 8. A fine porous separator 10 is interposed, between sheats 8 and 9, to be spirally wound to be housed in a battery can 11, and then a nonaqueous electrolyte, containing lithium salt, is injected to seal the battery can 11 by a battery lid 12. This can obtain a nonaqueous secondary battery having high discharge operating voltage, large discharge capacity, and an excellent charging/discharging characteristic and an high- current aptitude.
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Inventors:
Noriyuki Inoue
Hiroshi Inoue
Akihiro Matsufuji
Masa Ishiyama
Hiroshi Inoue
Akihiro Matsufuji
Masa Ishiyama
Application Number:
JP2355696A
Publication Date:
October 12, 2005
Filing Date:
February 09, 1996
Export Citation:
Assignee:
Ube Industries,Ltd.
International Classes:
H01M4/62; H01M10/05; (IPC1-7): H01M4/62; H01M4/02; H01M4/58; H01M10/40
Domestic Patent References:
| JP7220759A | ||||
| JP4206168A |