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. 22, 2016
Filed:
Nov. 03, 2010
IN Yong Seo, Seoul, KR;
Byung Gwang JO, Gimpo-si, KR;
Yong Sik Jung, Seoul, KR;
Yun Hye Kim, Gwangyang-si, KR;
In Yong Seo, Seoul, KR;
Byung Gwang Jo, Gimpo-si, KR;
Yong Sik Jung, Seoul, KR;
Yun Hye Kim, Gwangyang-si, KR;
AMOGREENTECH CO., LTD., , KR;
Abstract
Provided is an ultrafine fibrous porous separator with heat resistance and high-strength and a manufacturing method thereof, which enables mass-production of a heat-resistant and high-strength ultrafine fibrous separator by using an air-electrospinning (AES) method, and to a secondary battery using the same. The method of manufacturing a heat-resistant and high-strength ultrafine fibrous porous separator includes the steps of: air-electrospinning a mixed solution of 50 to 70 wt % of a heat-resistant, polymer material and 30 to 50 wt % of a swelling polymer material, to thereby form a porous web of a heat-resistant ultrafine fiber in which the heat-resistant polymer material and the swelling polymer material are consolidated in an ultrafine fibrous form; performing drying to control a solvent and moisture that remain on the surface of the porous web; and performing thermal compression on the dried porous web at a temperature of between 170° C. and 210° C. so as to obtain the separator.