Invention Grant
- Patent Title: Binder for manufacturing positive electrode of lithium secondary battery and method for manufacturing positive electrode by using same
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Application No.: US16768263Application Date: 2018-11-16
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Publication No.: US11563215B2Publication Date: 2023-01-24
- Inventor: Choonghyeon Lee , Doo Kyung Yang , Taek Gyoung Kim , Joo Hyeong Lee
- Applicant: LG CHEM, LTD.
- Applicant Address: KR Seoul
- Assignee: LG CHEM, LTD.
- Current Assignee: LG CHEM, LTD.
- Current Assignee Address: KR Seoul
- Agency: Birch, Stewart, Kolasch & Birch, LLP
- Priority: KR10-2017-0162681 20171130,KR10-2018-0095216 20180816
- International Application: PCT/KR2018/014138 WO 20181116
- International Announcement: WO2019/107815 WO 20190606
- Main IPC: H01M4/00
- IPC: H01M4/00 ; H01M4/62 ; C08L33/02 ; H01M4/36 ; H01M4/38 ; H01M4/587 ; H01M10/0525 ; H01M4/02
Abstract:
A binder for preparing a positive electrode of a lithium secondary battery, and a method for preparing a positive electrode using the same. The binder includes two or more different lithium-substituted polyacrylic acids with different molecular weights. The lithium-substituted polyacrylic acids include two different lithium-substituted polyacrylic acids differing in weight average molecular weight by 500,000 or more from each other.
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