Title:
セパレータ材料及びそれを用いた電池
Document Type and Number:
Japanese Patent JP5752462
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a separator material having high piercing strength and high resistance to short-circuiting.SOLUTION: Core-sheath composite fibers (100) contain a first component (1) composed of a thermoplastic resin, and a second component (2) composed of a thermoplastic resin having a melting point after spinning higher than the melting point of the first component after spinning. In a cross section of each composite fiber along a plane perpendicular to the longitudinal direction, the first component forms a sheath part constituting the whole surface of the fiber, and the second component forms a plurality of core parts, or one or more modified core parts. The separator material is obtained by manufacturing a fiber web by wet papermaking with slurry containing the core-sheath composite fibers (100), and applying a thermal bonding treatment and a thickness adjustment to the fiber web.
Inventors:
Koji Wakizaka
Hiroshi Okaya
Toshio Kamisasa
Yuki Nakahata
Hiroshi Okaya
Toshio Kamisasa
Yuki Nakahata
Application Number:
JP2011079949A
Publication Date:
July 22, 2015
Filing Date:
March 31, 2011
Export Citation:
Assignee:
Daiwabo Holdings Co., Ltd.
Daiwabo Polytech Co., Ltd.
Daiwabo Polytech Co., Ltd.
International Classes:
H01M2/16; D04H1/54
Domestic Patent References:
| JP2010097725A | ||||
| JP2001207362A | ||||
| JP2005116514A | ||||
| JP2007186813A | ||||
| JP5307947A | ||||
| JP2010251215A | ||||
| JP2011060429A |
Foreign References:
| WO2010027063A1 |
Attorney, Agent or Firm:
Samejima Mutsumi
Kyousei Tamura
Genban Sanae
Kyousei Tamura
Genban Sanae