Title:
CARBON-COATED NITROGEN-DOPED CU9S5, AND PREPARATION METHOD THEREFOR AND USE THEREOF
Document Type and Number:
WIPO Patent Application WO/2023/160102
Kind Code:
A1
Abstract:
The present application belongs to the technical field of battery materials. Disclosed are a carbon-coated nitrogen-doped Cu9S5 as well as a preparation method therefor and the use thereof. The chemical formula of the carbon-coated nitrogen-doped Cu9S5 is Cu9S5@NC, and the structure of the carbon-coated nitrogen-doped Cu9S 5 is of a bullet-like hollow nanostructure. The Cu9S5@NC prepared by the present application has a high surface area and a unique bullet-like hollow nanostructure, and shows good performance in a high-performance sodium ion battery. The hollow nanostructure can effectively adapt to the volume expansion change in processes of sodium intercalation and sodium deintercalation; and the construction of the bullet-like nanostructure can expand the contact area between an electrode and an electrolyte, so as to improve the electrochemical kinetic performance.
Inventors:
SHENG TIANDOU (CN)
LIU YONGQI (CN)
CAO KAIFENG (CN)
PENG HAILONG (CN)
LI CHANGDONG (CN)
LIU YONGQI (CN)
CAO KAIFENG (CN)
PENG HAILONG (CN)
LI CHANGDONG (CN)
Application Number:
PCT/CN2022/135945
Publication Date:
August 31, 2023
Filing Date:
December 01, 2022
Export Citation:
Assignee:
GUANGDONG BRUNP RECYCLING TECHNOLOGY CO LTD (CN)
HUNAN BRUNP RECYCLING TECH CO LTD (CN)
HUNAN BRUNP EV RECYCLING CO LTD (CN)
HUNAN BRUNP RECYCLING TECH CO LTD (CN)
HUNAN BRUNP EV RECYCLING CO LTD (CN)
International Classes:
H01M4/58; H01M4/62
Foreign References:
| CN114613995A | 2022-06-10 | |||
| CN111900346A | 2020-11-06 | |||
| CN111977691A | 2020-11-24 | |||
| CN113241431A | 2021-08-10 | |||
| US20170125800A1 | 2017-05-04 |
Other References:
YONGJIN FANG; XIN‐YAO YU; XIONG WEN (DAVID) LOU: "Bullet‐like Cu9S5 Hollow Particles Coated with Nitrogen‐Doped Carbon for Sodium‐Ion Batteries", ANGEWANDTE CHEMIE INTERNATIONAL EDITION, VERLAG CHEMIE, HOBOKEN, USA, vol. 58, no. 23, 2 May 2019 (2019-05-02), Hoboken, USA, pages 7744 - 7748, XP072093046, ISSN: 1433-7851, DOI: 10.1002/anie.201902988
Attorney, Agent or Firm:
BEIJING YZH IP FIRM (CN)
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