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:
Mar. 04, 2003
Filed:
Dec. 11, 2000
Kenjiro Kishimoto, Osaka, JP;
Toshio Kitami, Osaka, JP;
Masaaki Sasaki, Osaka, JP;
Tsuyoshi Kameda, Osaka, JP;
Makoto Kobayashi, Osaka, JP;
Other;
Abstract
A separator for sealed cells is provided which attains a high degree of intimate contact with electrode plates, enables the cell to have reduced internal resistance, is less apt to suffer a fatigue phenomenon even upon repetitions of charge/discharge, and improves the life of the cell. Fine rubber particles are adhered to the surface of fibers of a non-woven fabric constituting the separator so that the fine rubber particles are present among the fibers. These fine rubber particles function as elastic bodies to absorb relative positional changes of the fibers and improve the compressive repulsion of the separator.