Invention Grant
- Patent Title: Method for preparing iron oxide-hydroxide (FeOOH) and positive electrode for lithium-sulfur battery comprising iron oxide-hydroxide
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Application No.: US16324249Application Date: 2018-05-28
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Publication No.: US11038174B2Publication Date: 2021-06-15
- Inventor: Suenghoon Han , Kwonnam Sohn , Doo Kyung Yang , Dongwook Lee , Jungmi Moon
- 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: KR10-2017-0078017 20170620,KR10-2017-0089104 20170713,KR10-2018-0059572 20180525
- International Application: PCT/KR2018/006003 WO 20180528
- International Announcement: WO2018/236060 WO 20181227
- Main IPC: H01M4/62
- IPC: H01M4/62 ; H01M10/052 ; H01M4/38 ; H01M4/583 ; H01M4/36 ; C01G49/02 ; H01M4/02
Abstract:
A method for preparing Iron Oxide-hydroxide (FeOOH), and a positive electrode for a lithium-sulfur battery including Iron Oxide-hydroxide. In particular, the preparation of crystalline Iron Oxide-hydroxide, particularly, lepidocrocite (γ-FeOOH), by controlling a reaction time and a reaction temperature, and by using the prepared high purity Iron Oxide-hydroxide in a positive electrode of a lithium-sulfur battery, may enhance discharge capacity and lifetime properties of the battery.
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