Title:
VINYLIDENE FLUORIDE POLYMER FOR LITHIUM ION POWER BATTERY BINDER, AND PREPARATION METHOD THEREFOR AND USE THEREOF
Document Type and Number:
WIPO Patent Application WO/2020/238246
Kind Code:
A1
Abstract:
Disclosed are a vinylidene fluoride polymer for a lithium ion power battery binder, and a preparation method therefor and a use thereof, belonging to the technical field of fluorine chemical polymer materials. The method specifically comprises the following three stages: a first stage: homopolymerizing a vinylidene fluoride monomer to obtain a vinylidene fluoride homopolymer resin with an ultra-high molecular weight; a second stage: copolymerizing the vinylidene fluoride monomer, a second monomer, and a third monomer to obtain a vinylidene fluoride copolymer resin with a high molecular weight; and a third stage: blending the vinylidene fluoride homopolymer resin and copolymer resin to obtain the vinylidene fluoride polymer. According to the vinylidene fluoride polymer for a lithium ion power battery binder, the preparation method therefor and the use thereof, the prepared vinylidene fluoride polymer resin not only has a very high molecular weight and solution viscosity, but also has an excellent bonding property and flexibility, and can be used in power battery binders.
Inventors:
CHEN WEI (CN)
MIAO GUOXIANG (CN)
MIAO GUOXIANG (CN)
Application Number:
PCT/CN2020/071414
Publication Date:
December 03, 2020
Filing Date:
January 10, 2020
Export Citation:
Assignee:
ZHEJIANG FLUORINE CHEMICAL NEW MAT CO LTD (CN)
International Classes:
C08F214/22; C08F216/14; C08F220/14; C08F220/20
Domestic Patent References:
| WO2019087652A1 | 2019-05-09 |
Foreign References:
| CN110183562A | 2019-08-30 | |||
| CN106711498A | 2017-05-24 | |||
| CN105811004A | 2016-07-27 |
Attorney, Agent or Firm:
HANGZHOU ZHONGGANG INTELLECTURE PROPERTY AGENCY CO., LTD (CN)
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