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:
May. 14, 2019
Filed:
Mar. 11, 2011
Naoto Hagiwara, Tokyo, JP;
Katsuei Ishida, Tokyo, JP;
Naoto Hagiwara, Tokyo, JP;
Katsuei Ishida, Tokyo, JP;
TAIYO YUDEN CO., LTD., Tokyo, JP;
Abstract
One object is to provide an electric storage element for electrochemical devices that can prevent fall of active material powder from an outer edge of an active material layer, thereby preventing functional disorders due to the fall of the active material powder. In accordance with one aspect, an electric storage element has laminated structure wherein active material layers (first active material layer and second active material layer) are placed between an ion permeable layer and a first collector layer and between the ion permeable layer and a second collector layer. The active material layers have a smaller outline than the ion permeable layer and are tightly enclosed with insulating layers (first insulating layer and second insulating layer) filling the respective ambient regions corresponding to the difference in outlines from the ion permeable layer.