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:
Aug. 12, 2014
Filed:
Mar. 07, 2012
Tomohiro Hayakawa, Okayama, JP;
Hideo Hayashi, Okayama, JP;
Hideki Kamada, Okayama, JP;
Takayoshi Hosoya, Okayama, JP;
Hiroyuki Kawai, Okayama, JP;
Tomohiro Hayakawa, Okayama, JP;
Hideo Hayashi, Okayama, JP;
Hideki Kamada, Okayama, JP;
Takayoshi Hosoya, Okayama, JP;
Hiroyuki Kawai, Okayama, JP;
Kuraray Co., Ltd., Kurashiki-shi, JP;
Abstract
Provided is a separator for non-aqueous batteries not only having shutdown property but also achieving both higher output and short-circuit resistance. The separator comprising a laminate comprising: a low melting-point polymer fiber layer (A) having a melting point of 100 to 200° C., the low melting-point polymer fiber layer (A) comprising nanofibers having a fiber diameter of 1000 nm or smaller and formed from the low melting-point polymer; and a heat-resistant polymer fiber layer (B) positioned on the low melting-point polymer fiber layer (A) and comprising a high melting-point polymer having a melting point over 200° C. or a heat infusible polymer, the heat-resistant polymer fiber layer (B) comprising a mixture of nanofibers having a fiber diameter of 1000 nm or smaller and non-nanofibers having a fiber diameter over 1000 nm and both formed from heat-resistant polymer.