Invention Grant
- Patent Title: Cathode including sintered polycrystalline material, secondary battery including the cathode, and method of manufacturing the cathode
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Application No.: US16170581Application Date: 2018-10-25
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Publication No.: US11133502B2Publication Date: 2021-09-28
- Inventor: Kyunghoon Cho , Seunghoon Nam , Hwiyeol Park , Hojung Yang , Huisu Jeong , Jin S. Heo
- Applicant: SAMSUNG ELECTRONICS CO., LTD.
- Applicant Address: KR Suwon-si
- Assignee: SAMSUNG ELECTRONICS CO., LTD.
- Current Assignee: SAMSUNG ELECTRONICS CO., LTD.
- Current Assignee Address: KR Suwon-si
- Agency: Cantor Colburn LLP
- Priority: KR1020150110232 20150804
- Main IPC: H01M4/525
- IPC: H01M4/525 ; H01M4/131 ; H01M4/04 ; H01M4/505 ; H01M4/1391 ; C30B28/02 ; C30B29/22 ; H01M4/134 ; H01M4/1395 ; H01M4/38 ; H01M10/0525 ; H01M10/0562 ; H01M10/052 ; H01M10/0583 ; H01M4/02
Abstract:
A cathode includes a cathode collector layer, and a cathode active material layer on a surface of the cathode collector layer. The cathode active material layer includes a sintered polycrystalline material having a plurality of crystal grains of a lithium-based oxide, and each of the plurality of crystal grains includes a seed template, and a matrix crystal around the seed template, where the seed template is a single crystal and having a shape of a plate.
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