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:
Dec. 22, 2009
Filed:
Oct. 29, 2008
Kenro Mitsuda, Tokyo, JP;
Yoshiyuki Takuma, Tokyo, JP;
Daigo Takemura, Tokyo, JP;
Kazuki Kubo, Tokyo, JP;
Tetsuo Mitani, Tokyo, JP;
Fumiyuki Miyamoto, Tokyo, JP;
Takashi Masuda, Tokyo, JP;
Kenro Mitsuda, Tokyo, JP;
Yoshiyuki Takuma, Tokyo, JP;
Daigo Takemura, Tokyo, JP;
Kazuki Kubo, Tokyo, JP;
Tetsuo Mitani, Tokyo, JP;
Fumiyuki Miyamoto, Tokyo, JP;
Takashi Masuda, Tokyo, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
A porous electrolytic solution reservoir which is capable of being impregnated with an electrolytic solution is provided in an exterior case so as to make contact with a separator. The average diameter of the pores in the electrolytic solution reservoir is greater than the average diameter of pores in the separator. The electrolytic solution reservoir is impregnated with a predetermined amount of electrolytic solution, so that the occupation ratio of electrolytic solution within the pores in the separator becomes 50% or more when fully charged, and the occupation ratio of electrolytic solution within the pores in the electrolytic solution reservoir becomes 100% or less when fully discharged.