Title:
HEAT-RESISTANT AND TENSILE-STRENGTH-ENHANCED POLYESTER FILM, PREPARATION METHOD THEREFOR AND COMPOSITE CURRENT COLLECTOR
Document Type and Number:
WIPO Patent Application WO/2024/036938
Kind Code:
A1
Abstract:
Disclosed in the present invention are a heat-resistant and tensile-strength-enhanced polyester film, a preparation method therefor and a composite current collector. Raw materials of the polyester film comprise a polyester macromolecule; the polyester film is formed by using melt extrusion, and longitudinal stretching and transverse stretching are performed after the film is formed. The tensile strength and heat resistance of the polyester film are significantly improved. A composite current collector is prepared by taking the polyester film as a base material; and the film rupture rate of the composite current collector is significantly reduced, and the mechanical properties and heat resistance thereof are significantly improved.
Inventors:
ZHU ZHONGYA (CN)
XIA JIANZHONG (CN)
LI XUEFA (CN)
ZHANG GUOPING (CN)
XIA JIANZHONG (CN)
LI XUEFA (CN)
ZHANG GUOPING (CN)
Application Number:
PCT/CN2023/081050
Publication Date:
February 22, 2024
Filing Date:
March 13, 2023
Export Citation:
Assignee:
JIANGYIN NANOPORE INNOVATIVE MATERIALS TECH LTD (CN)
International Classes:
C08L67/02; B29D7/01; C08J5/18; C08K3/22; C08K3/26; H01M4/66
Domestic Patent References:
| WO2000029470A1 | 2000-05-25 |
Foreign References:
| CN115433438A | 2022-12-06 | |||
| CN114805771A | 2022-07-29 | |||
| CN113524830A | 2021-10-22 | |||
| US20020102419A1 | 2002-08-01 | |||
| CN114103364A | 2022-03-01 | |||
| CN114497568A | 2022-05-13 | |||
| CN113717359A | 2021-11-30 | |||
| JPH1044234A | 1998-02-17 |
Attorney, Agent or Firm:
ADVANCE CHINA IP LAW OFFICE (CN)
Download PDF: