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Huang C, Yu J, Zhang CY, Cui Z, Chen J, Lai WH, Lei YJ, Nan B, Lu X, He R, Gong L, Li J, Li C, Qi X, Xue Q, Zhou JY, Qi X, Balcells L, Arbiol J, Cabot A. Electronic Spin Alignment within Homologous NiS 2/NiSe 2 Heterostructures to Promote Sulfur Redox Kinetics in Lithium-Sulfur Batteries. Adv Mater 2024:e2400810. [PMID: 38569213 DOI: 10.1002/adma.202400810] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/16/2024] [Revised: 03/08/2024] [Indexed: 04/05/2024]
Abstract
The catalytic activation of the Li-S reaction is fundamental to maximize the capacity and stability of Li-S batteries (LSBs). Current research on Li-S catalysts mainly focuses on optimizing the energy levels to promote adsorption and catalytic conversion, while frequently overlooking the electronic spin state influence on charge transfer and orbital interactions. Here, hollow NiS2/NiSe2 heterostructures encapsulated in a nitrogen-doped carbon matrix (NiS2/NiSe2@NC) are synthesized and used as a catalytic additive in sulfur cathodes. The NiS2/NiSe2 heterostructure promotes the spin splitting of the 3d orbital, driving the Ni3+ transformation from low to high spin. This high spin configuration raises the electronic energy level and activates the electronic state. This accelerates the charge transfer and optimizes the adsorption energy, lowering the reaction energy barrier of the polysulfides conversion. Benefiting from these characteristics, LSBs based on NiS2/NiSe2@NC/S cathodes exhibit high initial capacity (1458 mAh·g⁻1 at 0.1C), excellent rate capability (572 mAh·g⁻1 at 5C), and stable cycling with an average capacity decay rate of only 0.025% per cycle at 1C during 500 cycles. Even at high sulfur loadings (6.2 mg·cm⁻2), high initial capacities of 1173 mAh·g⁻1 (7.27 mAh·cm⁻2) are measured at 0.1C, and 1058 mAh·g⁻1 is retained after 300 cycles.
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Affiliation(s)
- Chen Huang
- Catalonia Institute for Energy Research-IREC, Sant Adrià de Besòs, Barcelona, 08930, Spain
- Department of Chemistry, University of Barcelona, Barcelona, 08028, Spain
| | - Jing Yu
- Catalonia Institute for Energy Research-IREC, Sant Adrià de Besòs, Barcelona, 08930, Spain
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST, Campus UAB, Bellaterra, Barcelona, Catalonia, 08193, Spain
| | - Chao Yue Zhang
- Key Laboratory for Magnetism and Magnetic Materials of the Ministry of Education & School of Physical Science & Technology, Lanzhou University, Lanzhou, 730000, China
| | - Zhibiao Cui
- School of Chemistry, South China Normal University, Guangzhou, 510006, P. R. China
| | - Jiakun Chen
- Analysis and Testing Center, South China Normal University, Guangzhou, 510006, China
| | - Wei-Hong Lai
- Institute for Superconducting and Electronic Materials, Australian Institute of Innovative Materials, Innovation Campus, University of Wollongong, Wollongong, NSW, 2500, Australia
| | - Yao-Jie Lei
- Institute for Superconducting and Electronic Materials, Australian Institute of Innovative Materials, Innovation Campus, University of Wollongong, Wollongong, NSW, 2500, Australia
| | - Bingfei Nan
- Catalonia Institute for Energy Research-IREC, Sant Adrià de Besòs, Barcelona, 08930, Spain
| | - Xuan Lu
- Catalonia Institute for Energy Research-IREC, Sant Adrià de Besòs, Barcelona, 08930, Spain
| | - Ren He
- Catalonia Institute for Energy Research-IREC, Sant Adrià de Besòs, Barcelona, 08930, Spain
| | - Li Gong
- Catalonia Institute for Energy Research-IREC, Sant Adrià de Besòs, Barcelona, 08930, Spain
- Department of Chemistry, University of Barcelona, Barcelona, 08028, Spain
| | - Junshan Li
- Institute for Advanced Study, Chengdu University, Chengdu, 610106, China
| | - Canhuang Li
- Catalonia Institute for Energy Research-IREC, Sant Adrià de Besòs, Barcelona, 08930, Spain
- Department of Chemistry, University of Barcelona, Barcelona, 08028, Spain
| | - Xuede Qi
- College of Chemistry and Chemical Engineering, Chongqing University of Technology, Chongqing, 400054, China
| | - Qian Xue
- College of Chemistry and Chemical Engineering, Chongqing University of Technology, Chongqing, 400054, China
| | - Jin Yuan Zhou
- Key Laboratory for Magnetism and Magnetic Materials of the Ministry of Education & School of Physical Science & Technology, Lanzhou University, Lanzhou, 730000, China
| | - Xueqiang Qi
- College of Chemistry and Chemical Engineering, Chongqing University of Technology, Chongqing, 400054, China
| | - Lluís Balcells
- Institut de Ciència de Materials de Barcelona, Campus de la UAB, Bellaterra, Catalonia, 08193, Spain
| | - Jordi Arbiol
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST, Campus UAB, Bellaterra, Barcelona, Catalonia, 08193, Spain
- ICREA Pg. Lluis Companys, Barcelona, Catalonia, 08010, Spain
| | - Andreu Cabot
- Catalonia Institute for Energy Research-IREC, Sant Adrià de Besòs, Barcelona, 08930, Spain
- ICREA Pg. Lluis Companys, Barcelona, Catalonia, 08010, Spain
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