Title:
SOLID-PHASE POLYCONDENSATION POLYESTER FILM AND PREPARATION METHOD THEREFOR, AND COMPOSITE CURRENT COLLECTOR
Document Type and Number:
WIPO Patent Application WO/2024/036937
Kind Code:
A1
Abstract:
Disclosed in the present invention are a solid-phase polycondensation polyester film and a preparation method therefor, a composite current collector, an electrode plate and a battery. The preparation method comprises a heat treatment-solid-phase polycondensation reinforcement process, and the heat treatment-solid-phase polycondensation reinforcement process refers to feeding a polyester film into a heat treatment system to perform a solid-phase polycondensation reaction, such that the heat resistance and tensile strength of the polyester film can be improved, and when the reinforced solid phase polycondensation polyester film is used for preparing a composite current collector, the heat resistance is better.
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/CN2023/081038
Publication Date:
February 22, 2024
Filing Date:
March 13, 2023
Export Citation:
Assignee:
JIANGYIN NANOPORE INNOVATIVE MATERIALS TECH LTD (CN)
International Classes:
B29C71/02; B32B27/06
Foreign References:
| CN106087177A | 2016-11-09 | |||
| CN114497568A | 2022-05-13 | |||
| CN115320141A | 2022-11-11 |
Attorney, Agent or Firm:
ADVANCE CHINA IP LAW OFFICE (CN)
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