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:
Feb. 18, 2020
Filed:
Oct. 05, 2015
Sumitomo Electric Industries, Ltd., Osaka, JP;
Hideyuki Yamaguchi, Osaka, JP;
Katsuya Yamanishi, Osaka, JP;
Takashi Kanno, Osaka, JP;
Takefumi Ito, Osaka, JP;
Masahiro Kuwabara, Osaka, JP;
Kiyoaki Moriuchi, Osaka, JP;
Kiyoaki Hayashi, Osaka, JP;
Hayato Fujita, Osaka, JP;
Kousuke Shiraki, Osaka, JP;
Sumitomo Electric Industries, Ltd., Osaki-shi, JP;
Abstract
Provided are a battery cell that can be produced efficiently. A frame body of each cell frame of a battery cell includes an inner peripheral recessed portion formed by reducing a thickness of a peripheral portion that surrounds an entire perimeter of the penetrating window so that the peripheral portion has a smaller thickness than other portions of the frame body. A bipolar plate of the battery cell includes an outer peripheral engaging portion that engages with the inner peripheral recessed portion, the outer peripheral engaging portion being a portion having a particular width and extending throughout an entire outer periphery of the bipolar plate. The battery cell includes a disrupting structure that disrupts a leak channel that serves as an escape route for the electrolyte, the leak channel causing the inlet slit and the outlet slit to be in communication with each other and being formed between an outer periphery of the inner peripheral recessed portion and an outer periphery of the outer peripheral engaging portion when the cell frames are viewed from front.