Invention Grant
- Patent Title: Polymer binder with high peel strength and application thereof in secondary lithium battery
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Application No.: US17059421Application Date: 2020-02-12
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Publication No.: US11777093B2Publication Date: 2023-10-03
- Inventor: Guanglei Cui , Huanrui Zhang , Peng Wang , Hongxia Xu , Rongxiang Hu
- Applicant: QINGDAO INSTITUTE OF BIOENERGY AND BIOPROCESS TECHNOLOGY, CHINESE ACADEMY OF SCIENCES
- Applicant Address: CN Shandong
- Assignee: QINGDAO INSTITUTE OF BIOENERGY AND BIOPROCESS TECHNOLOGY, CHINESE ACADEMY OF SCIENCES
- Current Assignee: QINGDAO INSTITUTE OF BIOENERGY AND BIOPROCESS TECHNOLOGY, CHINESE ACADEMY OF SCIENCES
- Current Assignee Address: CN Shandong
- Agency: NKL Law
- Agent Allen Xue
- Priority: CN 1910830990.4 2019.09.04
- International Application: PCT/CN2020/074827 2020.02.12
- International Announcement: WO2021/042671A 2021.03.11
- Date entered country: 2020-11-27
- Main IPC: H01M4/62
- IPC: H01M4/62 ; H01M4/04 ; H01M10/0525
Abstract:
A polymer binder with high peel strength is used in a secondary lithium battery. The polymer binder is obtained by a ring-opening reaction of polyvinylene carbonate by a nucleophile. The polyvinylene carbonate accounts for 10-90% of the total mass of the polymer binder while the nucleophile accounts for 10-90% of the total mass of the polymer binder. The polymer binder has high peel strength (0.02-0.6 N/mm) and high decomposition voltages (4.5-6.0 V), and can be used as an electrode material binder in a secondary lithium battery.
Public/Granted literature
- US20220238881A1 POLYMER BINDER WITH HIGH PEEL STRENGTH AND APPLICATION THEREOF IN SECONDARY LITHIUM BATTERY Public/Granted day:2022-07-28
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