Engineering the Undercoordinated Edge-Rich Single-Crystal Microreactors for High-Performance Lithium─Sulfur Batteries
Mengdi Sun
Key Laboratory of Hubei Province for Coal Conversion and New Carbon Materials, School of Chemistry and Chemical Engineering, Wuhan University of Science and Technology, Wuhan, 430081 China
Institute of Carbon Neutrality, Zhejiang Wanli University, Ningbo, 315100 China
Search for more papers by this authorXincheng Lei
Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing, 100190 China
Search for more papers by this authorCorresponding Author
Jiayi Wang
Institute of Carbon Neutrality, Zhejiang Wanli University, Ningbo, 315100 China
E-mail: [email protected]; [email protected]; [email protected]; [email protected]
Search for more papers by this authorZhangyong Yan
Key Laboratory of Hubei Province for Coal Conversion and New Carbon Materials, School of Chemistry and Chemical Engineering, Wuhan University of Science and Technology, Wuhan, 430081 China
Institute of Carbon Neutrality, Zhejiang Wanli University, Ningbo, 315100 China
Search for more papers by this authorChenglin Wei
Key Laboratory of Hubei Province for Coal Conversion and New Carbon Materials, School of Chemistry and Chemical Engineering, Wuhan University of Science and Technology, Wuhan, 430081 China
Institute of Carbon Neutrality, Zhejiang Wanli University, Ningbo, 315100 China
Search for more papers by this authorZefeng Yuan
Key Laboratory of Hubei Province for Coal Conversion and New Carbon Materials, School of Chemistry and Chemical Engineering, Wuhan University of Science and Technology, Wuhan, 430081 China
Search for more papers by this authorXueyang Gu
Key Laboratory of Hubei Province for Coal Conversion and New Carbon Materials, School of Chemistry and Chemical Engineering, Wuhan University of Science and Technology, Wuhan, 430081 China
Search for more papers by this authorLin Wu
Key Laboratory of Hubei Province for Coal Conversion and New Carbon Materials, School of Chemistry and Chemical Engineering, Wuhan University of Science and Technology, Wuhan, 430081 China
Search for more papers by this authorCorresponding Author
Ya Hu
Key Laboratory of Hubei Province for Coal Conversion and New Carbon Materials, School of Chemistry and Chemical Engineering, Wuhan University of Science and Technology, Wuhan, 430081 China
E-mail: [email protected]; [email protected]; [email protected]; [email protected]
Search for more papers by this authorLin Yang
Institute of Carbon Neutrality, Zhejiang Wanli University, Ningbo, 315100 China
Search for more papers by this authorCorresponding Author
Xin Wang
Institute of Carbon Neutrality, Zhejiang Wanli University, Ningbo, 315100 China
E-mail: [email protected]; [email protected]; [email protected]; [email protected]
Search for more papers by this authorDong Su
Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing, 100190 China
Search for more papers by this authorCorresponding Author
Zhongwei Chen
Power Battery and System Research Center, State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023 China
E-mail: [email protected]; [email protected]; [email protected]; [email protected]
Search for more papers by this authorMengdi Sun
Key Laboratory of Hubei Province for Coal Conversion and New Carbon Materials, School of Chemistry and Chemical Engineering, Wuhan University of Science and Technology, Wuhan, 430081 China
Institute of Carbon Neutrality, Zhejiang Wanli University, Ningbo, 315100 China
Search for more papers by this authorXincheng Lei
Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing, 100190 China
Search for more papers by this authorCorresponding Author
Jiayi Wang
Institute of Carbon Neutrality, Zhejiang Wanli University, Ningbo, 315100 China
E-mail: [email protected]; [email protected]; [email protected]; [email protected]
Search for more papers by this authorZhangyong Yan
Key Laboratory of Hubei Province for Coal Conversion and New Carbon Materials, School of Chemistry and Chemical Engineering, Wuhan University of Science and Technology, Wuhan, 430081 China
Institute of Carbon Neutrality, Zhejiang Wanli University, Ningbo, 315100 China
Search for more papers by this authorChenglin Wei
Key Laboratory of Hubei Province for Coal Conversion and New Carbon Materials, School of Chemistry and Chemical Engineering, Wuhan University of Science and Technology, Wuhan, 430081 China
Institute of Carbon Neutrality, Zhejiang Wanli University, Ningbo, 315100 China
Search for more papers by this authorZefeng Yuan
Key Laboratory of Hubei Province for Coal Conversion and New Carbon Materials, School of Chemistry and Chemical Engineering, Wuhan University of Science and Technology, Wuhan, 430081 China
Search for more papers by this authorXueyang Gu
Key Laboratory of Hubei Province for Coal Conversion and New Carbon Materials, School of Chemistry and Chemical Engineering, Wuhan University of Science and Technology, Wuhan, 430081 China
Search for more papers by this authorLin Wu
Key Laboratory of Hubei Province for Coal Conversion and New Carbon Materials, School of Chemistry and Chemical Engineering, Wuhan University of Science and Technology, Wuhan, 430081 China
Search for more papers by this authorCorresponding Author
Ya Hu
Key Laboratory of Hubei Province for Coal Conversion and New Carbon Materials, School of Chemistry and Chemical Engineering, Wuhan University of Science and Technology, Wuhan, 430081 China
E-mail: [email protected]; [email protected]; [email protected]; [email protected]
Search for more papers by this authorLin Yang
Institute of Carbon Neutrality, Zhejiang Wanli University, Ningbo, 315100 China
Search for more papers by this authorCorresponding Author
Xin Wang
Institute of Carbon Neutrality, Zhejiang Wanli University, Ningbo, 315100 China
E-mail: [email protected]; [email protected]; [email protected]; [email protected]
Search for more papers by this authorDong Su
Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing, 100190 China
Search for more papers by this authorCorresponding Author
Zhongwei Chen
Power Battery and System Research Center, State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023 China
E-mail: [email protected]; [email protected]; [email protected]; [email protected]
Search for more papers by this authorAbstract
Lithium─sulfur (Li─S) batteries have garnered extensive research interest due to their high theoretical capacity and cost-effectiveness. However, their practical application is hindered by severe shuttle effects and sluggish conversion kinetics. Here, the development of a novel microreactor composed of undercoordinated edge-rich single-crystal nickel─cobalt bimetallic oxides embedded within a conductive carbon nanotube network (NCO/CNT), as an electrocatalyst for Li─S batteries is reported. The single-crystal bimetallic oxide matrix ensures high structural stability during reactions, while its abundant edge sites provide abundant active catalytic centers. Structural analyses reveal pronounced oxygen undercoordination within NCO/CNT, with these unsaturated sites demonstrating strong adsorption and catalytic activity, effectively promoting sulfur species immobilization and conversion. Complementary theoretical calculations indicate that the unique edge-rich undercoordinated design optimizes the electronic configuration of metal atoms, enhancing electron exchange with sulfur species. Benefiting from these features, Li─S batteries incorporating NCO/CNT achieve an initial discharge capacity of 1327.1 mAh g−1 at 0.2C, and a high areal capacity of 5.4 mAh cm−2 under a sulfur loading of 5.83 mg cm−2, with 96.3% capacity retention after 50 cycles. This work offers insights into the design of high-performance sulfur microreactors, paving the way for efficient and sustainable sulfur electrochemistry.
Conflict of Interest
The authors declare no conflict of interest.
Open Research
Data Availability Statement
The data that support the findings of this study are available from the corresponding author upon reasonable request.
Supporting Information
| Filename | Description |
|---|---|
| smll202501965-sup-0001-SuppMat.docx5 MB | Supporting Information |
Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.
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