{"title":"用于先进钠离子电池的高熵 NASICON 型阴极的协同效应","authors":"Shouyue Wang, Taiding Xu, Huitao Leng, Shengyu Liang, Wei Zhang, Yuheng Jin, Jingxia Qiu, Sheng Li","doi":"10.1039/d4ta06950a","DOIUrl":null,"url":null,"abstract":"Na3V2(PO4)3 (NVP) is recognized as one of the most promising NASICON-type cathodes for sodium-ion storage. Enhancing electronic conductivity and further ensuring long-term structural stability when activating the high-voltage V⁴⁺/V⁵⁺ redox reaction is crucial for the practical application of NVP cathodes. In this study, a high-entropy NVP with carbon coating (Na3V1.5(CrMnFeMgAl)0.5(PO4)3@C, HE-NVMP@C) has been designed and synthesized. Due to the enhanced electronic/ionic conductivity facilitated by the carbon coating and lattice distortion from the high-entropy effect, the HE-NVMP@C exhibits improved high-rate performance. Additionally, benefiting from the collaboration between the doped heteroatoms, the HE-NVMP@C can effectively activate V3+/V4+/V5+ redox reactions within the 2.5-4.3 V voltage window while maintaining excellent structural stability over extended cycles. This work provides an efficient approach to enhance the electrochemical performances of NASICON-type cathodes for sodium-ion batteries.","PeriodicalId":82,"journal":{"name":"Journal of Materials Chemistry A","volume":"25 1","pages":""},"PeriodicalIF":10.7000,"publicationDate":"2024-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Synergetic Effects from a High-Entropy NASICON-type Cathode for Advanced Sodium-Ion Batteries\",\"authors\":\"Shouyue Wang, Taiding Xu, Huitao Leng, Shengyu Liang, Wei Zhang, Yuheng Jin, Jingxia Qiu, Sheng Li\",\"doi\":\"10.1039/d4ta06950a\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Na3V2(PO4)3 (NVP) is recognized as one of the most promising NASICON-type cathodes for sodium-ion storage. Enhancing electronic conductivity and further ensuring long-term structural stability when activating the high-voltage V⁴⁺/V⁵⁺ redox reaction is crucial for the practical application of NVP cathodes. In this study, a high-entropy NVP with carbon coating (Na3V1.5(CrMnFeMgAl)0.5(PO4)3@C, HE-NVMP@C) has been designed and synthesized. Due to the enhanced electronic/ionic conductivity facilitated by the carbon coating and lattice distortion from the high-entropy effect, the HE-NVMP@C exhibits improved high-rate performance. Additionally, benefiting from the collaboration between the doped heteroatoms, the HE-NVMP@C can effectively activate V3+/V4+/V5+ redox reactions within the 2.5-4.3 V voltage window while maintaining excellent structural stability over extended cycles. This work provides an efficient approach to enhance the electrochemical performances of NASICON-type cathodes for sodium-ion batteries.\",\"PeriodicalId\":82,\"journal\":{\"name\":\"Journal of Materials Chemistry A\",\"volume\":\"25 1\",\"pages\":\"\"},\"PeriodicalIF\":10.7000,\"publicationDate\":\"2024-11-12\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Materials Chemistry A\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://doi.org/10.1039/d4ta06950a\",\"RegionNum\":2,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"CHEMISTRY, PHYSICAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Materials Chemistry A","FirstCategoryId":"88","ListUrlMain":"https://doi.org/10.1039/d4ta06950a","RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}
Synergetic Effects from a High-Entropy NASICON-type Cathode for Advanced Sodium-Ion Batteries
Na3V2(PO4)3 (NVP) is recognized as one of the most promising NASICON-type cathodes for sodium-ion storage. Enhancing electronic conductivity and further ensuring long-term structural stability when activating the high-voltage V⁴⁺/V⁵⁺ redox reaction is crucial for the practical application of NVP cathodes. In this study, a high-entropy NVP with carbon coating (Na3V1.5(CrMnFeMgAl)0.5(PO4)3@C, HE-NVMP@C) has been designed and synthesized. Due to the enhanced electronic/ionic conductivity facilitated by the carbon coating and lattice distortion from the high-entropy effect, the HE-NVMP@C exhibits improved high-rate performance. Additionally, benefiting from the collaboration between the doped heteroatoms, the HE-NVMP@C can effectively activate V3+/V4+/V5+ redox reactions within the 2.5-4.3 V voltage window while maintaining excellent structural stability over extended cycles. This work provides an efficient approach to enhance the electrochemical performances of NASICON-type cathodes for sodium-ion batteries.
期刊介绍：
The Journal of Materials Chemistry A, B & C covers a wide range of high-quality studies in the field of materials chemistry, with each section focusing on specific applications of the materials studied. Journal of Materials Chemistry A emphasizes applications in energy and sustainability, including topics such as artificial photosynthesis, batteries, and fuel cells. Journal of Materials Chemistry B focuses on applications in biology and medicine, while Journal of Materials Chemistry C covers applications in optical, magnetic, and electronic devices. Example topic areas within the scope of Journal of Materials Chemistry A include catalysis, green/sustainable materials, sensors, and water treatment, among others.
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