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. 11, 2001
Filed:
Mar. 16, 1999
Tetsuo Oyama, Takahagi, JP;
Tadahiko Miyoshi, Hitachi, JP;
Manabu Madokoro, Hitachi, JP;
Hisamitsu Hatoh, Hitachi, JP;
Shigeoki Nishimura, Hitachinaka, JP;
Katsuhiko Shiota, Tokai-mura, JP;
Kiyoshi Otaka, Takahagi, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A highly reliable sodium-sulfur battery includes a cell container for the positive electrode which is hardly deteriorated by corrosion. The cell container for the positive electrode is assembled by integrating plural members made of a high corrosion resistant alloy containing Cr, or a Co base alloy containing Cr, Ni and Mo, wherein carbide containing at least one of Cr, W and Mo is precipitated, and a readily deformable portion is provided to the cell container for the positive electrode, whereby reliability of the sodium-sulfur battery can be significantly improved.