Title:
MODIFIED PARA-ARAMID POLYMERIZATION LIQUID, COATING SLURRY, LITHIUM BATTERY SEPARATOR AND PREPARATION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2022/127148
Kind Code:
A1
Abstract:
Disclosed are a modified para-aramid polymerization liquid, a coating slurry, a lithium battery separator, and a preparation method therefor. The present invention belongs to the technical field of lithium battery materials. In the present invention, a modified para-aramid polymerization liquid is prepared. The polymerization liquid can be directly formulated into a coating slurry and used for coating a lithium battery separator. The present invention effectively solves the problem of traditional para-aramids being hard to dissolve in a polar solvent when preparing a coating film. In a prepared lithium battery separator, ceramic particles are wrapped in the three-dimensional network structure of a modified para-aramid, such that the defect of ceramic particles falling off is effectively ameliorated, and the thermal performance and usage safety of the lithium battery separator are improved. Compared with traditional methods, the present invention has significant advantages such as a high production efficiency, good product performance, and a low production cost.
Inventors:
CHEN QI (CN)
MA HAIBING (CN)
MA QIANLI (CN)
MA HAIBING (CN)
MA QIANLI (CN)
Application Number:
PCT/CN2021/112534
Publication Date:
June 23, 2022
Filing Date:
August 13, 2021
Export Citation:
Assignee:
YANTAI TAIHE NEW MAT CO LTD (CN)
International Classes:
C08G69/28; C09D177/00; H01M50/403; H01M50/423
Foreign References:
| CN112694610A | 2021-04-23 | |||
| CN110729437A | 2020-01-24 | |||
| CN110499542A | 2019-11-26 | |||
| CN104667846A | 2015-06-03 | |||
| CN110605079A | 2019-12-24 | |||
| CN109411680A | 2019-03-01 | |||
| CN108666501A | 2018-10-16 | |||
| CN108717964A | 2018-10-30 | |||
| CN110048063A | 2019-07-23 | |||
| JPS6346222A | 1988-02-27 | |||
| CN110055819A | 2019-07-26 | |||
| JPS61247735A | 1986-11-05 |
Attorney, Agent or Firm:
XI'AN TONG DA PATENT AGENCY CO., LTD. (CN)
Download PDF: