Rechargeable Aqueous Zinc-Ion Batteries in MgSO4/ZnSO4 Hybrid Electrolytes

被引：83
|
作者：
Zhang, Yingmeng [1 ,2 ,3 ]
Li, Henan [4 ]
Huang, Shaozhuan [5 ]
Fan, Shuang [5 ]
Sun, Lingna [1 ]
Tian, Bingbing [2 ]
Chen, Fuming [6 ]
Wang, Ye [7 ]
Shi, Yumeng [2 ,3 ]
Yang, Hui Ying [5 ]
机构：
[1] Shenzhen Univ, Coll Chem & Environm Engn, Shenzhen 518060, Guangdong, Peoples R China
[2] Shenzhen Univ, Inst Microscale Optoelect, Minist Educ, Int Collaborat Lab 2D Mat Optoelect Sci & Technol, Shenzhen 518060, Peoples R China
[3] Engn Technol Res Ctr 2D Mat Informat Funct Device, Shenzhen, Peoples R China
[4] Shenzhen Univ, Inst Microscale Optoelect, Shenzhen 518060, Peoples R China
[5] Singapore Univ Technol & Design, Pillar Engn Prod Dev, 8 Somapah Rd, Singapore 487372, Singapore
[6] South China Normal Univ, Sch Phys & Telecommun Engn, Guangzhou 510006, Peoples R China
[7] Zhengzhou Univ, Sch Phys & Engn, Minist Educ, Key Lab Mat Phys, Zhengzhou 450052, Peoples R China
来源：
NANO-MICRO LETTERS | 2020年 / 12卷 / 01期
基金：
中国国家自然科学基金;
关键词：
Aqueous zinc-ion batteries; Hybrid electrolytes; Electrolyte additives; Magnesium ions; Vanadates; CATHODE MATERIAL; PERFORMANCE; CYCLE; INSERTION;
D O I：
10.1007/s40820-020-0385-7
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
MgSO4 is chosen as an additive to address the capacity fading issue in the rechargeable zinc-ion battery system of MgxV2O5 center dot nH(2)O//ZnSO4//zinc. Electrolytes with different concentration ratios of ZnSO4 and MgSO4 are investigated. The batteries measured in the 1 M ZnSO4-1 M MgSO4 electrolyte outplay other competitors, which deliver a high specific capacity of 374 mAh g(-1) at a current density of 100 mA g(-1) and exhibit a competitive rate performance with the reversible capacity of 175 mAh g(-1) at 5 A g(-1). This study provides a promising route to improve the performance of vanadium-based cathodes for aqueous zinc-ion batteries with electrolyte optimization in cost-effective electrolytes.
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收藏
页数：16
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