The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 26, 2000
Filed:
Dec. 03, 1997
Kouji Hamano, Tokyo, JP;
Yasuhiro Yoshida, Tokyo, JP;
Hisashi Shiota, Tokyo, JP;
Shou Shiraga, Tokyo, JP;
Shigeru Aihara, Tokyo, JP;
Michio Murai, Tokyo, JP;
Takayuki Inuzuka, Tokyo, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
To obtain a lithium ion secondary battery having excellent charge and discharge characteristics in which electric connection between electrodes can be maintained without requiring a strong armor metal case, so that it can be made into thin forms having large energy density. A positive electrode 3 prepared by bonding a positive electrode active material layer 7 to a positive electrode collector 6, a negative electrode 5 prepared by bonding a negative electrode active material layer 9 to a negative electrode collector 10 and a separator 4 which is arranged between these two electrodes and keeps a lithium ion-containing electrolytic solution are closely adhered by bonding the positive electrode active material layer 7 and the negative electrode active material layer 9 to the separator 4 by a porous adhesive resin layer 11, and an electrolytic solution is kept in through holes 12 formed in the adhesive resin layer 11, which communicate the positive electrode active material layer 7 and the negative electrode active material layer 9 with the separator 4.