当前位置：
X-MOL 学术
›
Energy Sci. Eng.
›
论文详情
Our official English website, www.x-mol.net, welcomes your
feedback! (Note: you will need to create a separate account there.)
Impacts of fluorine in NASICON-type materials as cathodes for aqueous zinc ion batteries
Energy Science & Engineering ( IF 3.5 ) Pub Date : 2021-05-30 , DOI: 10.1002/ese3.925 Ziyan Liu 1 , Xiaoxiao Jia 1 , Guozhong Cao 1
Energy Science & Engineering ( IF 3.5 ) Pub Date : 2021-05-30 , DOI: 10.1002/ese3.925 Ziyan Liu 1 , Xiaoxiao Jia 1 , Guozhong Cao 1
Affiliation
|
Sodium superionic conductor (NASICON)-type materials are getting more and more attention due to their high capacity and good cycling ability compared with other cathode materials in aqueous zinc ion batteries (AZIB). The present paper was to study the synthesis and electrochemical properties of two NASICON compounds of Na3V2(PO4)3 and Na3V2(PO4)2F3 and to understand the impacts of fluorine. Both Na3V2(PO4)3 and Na3V2(PO4)2F3 are synthesized by hydrothermal growth followed with annealing at 800°C in inert gas. With 3 mol/L Zn(CF3SO3)2 in water as electrolyte, Na3V2(PO4)3 offered a high storage capacity, while Na3V2(PO4)2F3 demonstrated a high discharge voltage though low storage capacity. It was also found that the storage capacity of Na3V2(PO4)2F3 increases with increased cycles; however, the compound undergoes a gradual phase transition. It is discussed possible approaches to attain both high discharge voltage and large capacity with good cycling stability.
中文翻译：
氟在 NASICON 型材料中作为水性锌离子电池正极的影响
钠超离子导体（NASICON）类材料由于在水性锌离子电池（AZIB）中与其他正极材料相比具有高容量和良好的循环能力而受到越来越多的关注。本论文旨在研究Na 3 V 2 (PO 4 ) 3和Na 3 V 2 (PO 4 ) 2 F 3两种NASICON化合物的合成和电化学性能，并了解氟的影响。Na 3 V 2 (PO 4 ) 3和 Na 3 V 2 (PO 4 )2 F 3是通过水热生长合成的，然后在惰性气体中在 800°C 下退火。以 3 mol/L Zn(CF 3 SO 3 ) 2水溶液作为电解质，Na 3 V 2 (PO 4 ) 3提供了高存储容量，而 Na 3 V 2 (PO 4 ) 2 F 3表现出高放电电压虽然存储容量低。还发现Na 3 V 2 (PO 4 ) 2 F 3的存储容量随着周期的增加而增加；然而，该化合物经历了逐渐的相变。讨论了获得高放电电压和大容量以及良好循环稳定性的可能方法。
更新日期：2021-07-01
中文翻译：
氟在 NASICON 型材料中作为水性锌离子电池正极的影响
钠超离子导体（NASICON）类材料由于在水性锌离子电池（AZIB）中与其他正极材料相比具有高容量和良好的循环能力而受到越来越多的关注。本论文旨在研究Na 3 V 2 (PO 4 ) 3和Na 3 V 2 (PO 4 ) 2 F 3两种NASICON化合物的合成和电化学性能，并了解氟的影响。Na 3 V 2 (PO 4 ) 3和 Na 3 V 2 (PO 4 )2 F 3是通过水热生长合成的，然后在惰性气体中在 800°C 下退火。以 3 mol/L Zn(CF 3 SO 3 ) 2水溶液作为电解质，Na 3 V 2 (PO 4 ) 3提供了高存储容量，而 Na 3 V 2 (PO 4 ) 2 F 3表现出高放电电压虽然存储容量低。还发现Na 3 V 2 (PO 4 ) 2 F 3的存储容量随着周期的增加而增加；然而，该化合物经历了逐渐的相变。讨论了获得高放电电压和大容量以及良好循环稳定性的可能方法。
京公网安备 11010802027423号