Invention Publication
- Patent Title: NEGATIVE ELECTRODE ACTIVE SUBSTANCE FOR SODIUM ION SECONDARY BATTERY
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Application No.: US18273284Application Date: 2022-02-14
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Publication No.: US20240313211A1Publication Date: 2024-09-19
- Inventor: Tsuyoshi HONMA , Aoi ODA , Hideo YAMAUCHI , Ayumu TANAKA , Kei TSUNODA , Yoshinori YAMAZAKI
- Applicant: NIPPON ELECTRIC GLASS CO., LTD. , NATIONAL UNIVERSITY CORPORATION NAGAOKA UNIVERSITY OF TECHNOLOGY
- Applicant Address: JP Otsu-shi, Shiga
- Assignee: NIPPON ELECTRIC GLASS CO., LTD.,NATIONAL UNIVERSITY CORPORATION NAGAOKA UNIVERSITY OF TECHNOLOGY
- Current Assignee: NIPPON ELECTRIC GLASS CO., LTD.,NATIONAL UNIVERSITY CORPORATION NAGAOKA UNIVERSITY OF TECHNOLOGY
- Current Assignee Address: JP Otsu-shi, Shiga
- Priority: JP 21026016 2021.02.22
- International Application: PCT/JP2022/005537 2022.02.14
- Date entered country: 2023-07-20
- Main IPC: H01M4/52
- IPC: H01M4/52 ; C03C4/14 ; C03C14/00 ; H01G11/04 ; H01G11/46 ; H01M10/054
Abstract:
A negative electrode active material for a sodium ion secondary battery is provided, in which the negative electrode active material has a low initial irreversible capacity. The negative electrode active material for a sodium ion secondary battery includes a crystallized glass formed by precipitation of metallic Bi in a matrix containing at least one compound selected from Fe2O3 and CuO, and SiO2.
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