{"title":"了解 K+ 对钠离子电池六氰合铁锰酸钠的稳定作用","authors":"","doi":"10.1016/j.nanoen.2024.110007","DOIUrl":null,"url":null,"abstract":"<div><p>The outstanding cycling performance of sodium manganese hexacyanoferrate (NaMnHCF) was obtained by applying NaPF<sub>6</sub>/KPF<sub>6</sub> mixed salt solution as an electrolyte. NaMnHCF and KMnHCF are composited at the nanoscale to form a high-quality NaMnHCF/KMnHCF composite, enabling an exceptional cycling performance with more than 90 % capacity retention after 500 cycles. The enhanced cycling performance is attributed to the high-quality NaMnHCF/KMnHCF composition and the pillar effect of KMnHCF. Furthermore, the superlattice of NaKMnHCF was also discovered after treatment in the mixed electrolyte, which may be partly responsible for the acquired stability. The crystal structure of the cathode material remains stable during cycling, and the cathode-electrolyte interface is more resistant to corrosion in the NaPF<sub>6</sub>/KPF<sub>6</sub> mixed electrolyte. Our work reports an effective strategy to achieve high-quality NaMnHCF/KMnHCF composites and articulates the mechanism of the stabilizing effect.</p></div>","PeriodicalId":394,"journal":{"name":"Nano Energy","volume":null,"pages":null},"PeriodicalIF":16.8000,"publicationDate":"2024-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Understanding the stabilizing effect of K+ on the sodium manganese hexacyanoferrate for sodium-ion batteries\",\"authors\":\"\",\"doi\":\"10.1016/j.nanoen.2024.110007\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>The outstanding cycling performance of sodium manganese hexacyanoferrate (NaMnHCF) was obtained by applying NaPF<sub>6</sub>/KPF<sub>6</sub> mixed salt solution as an electrolyte. NaMnHCF and KMnHCF are composited at the nanoscale to form a high-quality NaMnHCF/KMnHCF composite, enabling an exceptional cycling performance with more than 90 % capacity retention after 500 cycles. The enhanced cycling performance is attributed to the high-quality NaMnHCF/KMnHCF composition and the pillar effect of KMnHCF. Furthermore, the superlattice of NaKMnHCF was also discovered after treatment in the mixed electrolyte, which may be partly responsible for the acquired stability. The crystal structure of the cathode material remains stable during cycling, and the cathode-electrolyte interface is more resistant to corrosion in the NaPF<sub>6</sub>/KPF<sub>6</sub> mixed electrolyte. Our work reports an effective strategy to achieve high-quality NaMnHCF/KMnHCF composites and articulates the mechanism of the stabilizing effect.</p></div>\",\"PeriodicalId\":394,\"journal\":{\"name\":\"Nano Energy\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":16.8000,\"publicationDate\":\"2024-07-16\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Nano Energy\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S2211285524007572\",\"RegionNum\":1,\"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":"Nano Energy","FirstCategoryId":"88","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2211285524007572","RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}
Understanding the stabilizing effect of K+ on the sodium manganese hexacyanoferrate for sodium-ion batteries
The outstanding cycling performance of sodium manganese hexacyanoferrate (NaMnHCF) was obtained by applying NaPF6/KPF6 mixed salt solution as an electrolyte. NaMnHCF and KMnHCF are composited at the nanoscale to form a high-quality NaMnHCF/KMnHCF composite, enabling an exceptional cycling performance with more than 90 % capacity retention after 500 cycles. The enhanced cycling performance is attributed to the high-quality NaMnHCF/KMnHCF composition and the pillar effect of KMnHCF. Furthermore, the superlattice of NaKMnHCF was also discovered after treatment in the mixed electrolyte, which may be partly responsible for the acquired stability. The crystal structure of the cathode material remains stable during cycling, and the cathode-electrolyte interface is more resistant to corrosion in the NaPF6/KPF6 mixed electrolyte. Our work reports an effective strategy to achieve high-quality NaMnHCF/KMnHCF composites and articulates the mechanism of the stabilizing effect.
期刊介绍:
Nano Energy is a multidisciplinary, rapid-publication forum of original peer-reviewed contributions on the science and engineering of nanomaterials and nanodevices used in all forms of energy harvesting, conversion, storage, utilization and policy. Through its mixture of articles, reviews, communications, research news, and information on key developments, Nano Energy provides a comprehensive coverage of this exciting and dynamic field which joins nanoscience and nanotechnology with energy science. The journal is relevant to all those who are interested in nanomaterials solutions to the energy problem.
Nano Energy publishes original experimental and theoretical research on all aspects of energy-related research which utilizes nanomaterials and nanotechnology. Manuscripts of four types are considered: review articles which inform readers of the latest research and advances in energy science; rapid communications which feature exciting research breakthroughs in the field; full-length articles which report comprehensive research developments; and news and opinions which comment on topical issues or express views on the developments in related fields.