A Flexible Solid-State Aqueous Zinc Hybrid Battery with Flat and High-Voltage Discharge Plateau

Liu, Zhuoxin1; Yang, Qi2; Wang, Donghong2; Liang, Guojin2; Zhu, Youhuan3; Mo, Funian2; Huang, Zhaodong2; Li, Xinliang2; Ma, Longtao2; Tang, Tiancheng2; Lu, Zhouguang3; Zhi, Chunyi2,4

2019-10-30

10.1002/aenm.201902473

Advanced Energy Materials   影响因子和分区

1614-6832

1614-6840

The migration of zinc-ion batteries from alkaline electrolyte to neutral or mild acidic electrolyte promotes research into their flexible applications. However, discharge voltage of many reported zinc-ion batteries is far from satisfactory. On one hand, the battery voltage is substantially restricted by the narrow voltage window of aqueous electrolytes. On the other hand, many batteries yield a low-voltage discharge plateau or show no plateau but capacitor-like sloping discharge profiles. This impacts the battery's practicability for flexible electronics where stable and consistent high energy is needed. Herein, an aqueous zinc hybrid battery based on a highly concentrated dual-ion electrolyte and a hierarchically structured lithium-ion-intercalative LiVPO4F cathode is developed. This hybrid battery delivers a flat and high-voltage discharge plateau of nearly 1.9 V, ranking among the highest reported values for all aqueous zinc-based batteries. The resultant high energy density of 235.6 Wh kg(-1) at a power density of 320.8 W kg(-1) also outperforms most reported zinc-based batteries. A designed solid-state and long-lasting hydrogel electrolyte is subsequently applied in the fabrication of a flexible battery, which can be integrated into various flexible devices as powerful energy supply. The idea of designing such a hybrid battery offers a new strategy for developing high-voltage and high-energy aqueous energy storage systems.

flexible high voltage hybrid batteries hydrogel electrolyte zinc batteries

SCI ; EI

英语

其他

Science Technology and Innovation Committee of Shenzhen Municipality[JCYJ20170818103435068]

Chemistry ; Energy & Fuels ; Materials Science ; Physics

Chemistry, Physical ; Energy & Fuels ; Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter

WOS:000493161400001

WILEY-V C H VERLAG GMBH

20194607683103

Electric arcs ; Flexible electronics ; Fluorine compounds ; Hydrogels ; Ions ; Lithium compounds ; Lithium-ion batteries ; Phosphorus compounds ; Solid-State Batteries ; Vanadium compounds ; Zinc

Zinc and Alloys:546.3 ; Electricity: Basic Concepts and Phenomena:701.1 ; Electronic Equipment, General Purpose and Industrial:715 ; Chemical Agents and Basic Industrial Chemicals:803 ; Chemical Products Generally:804

Web of Science

1.Shenzhen Univ, Coll Mat Sci & Engn, Shenzhen 518055, Peoples R China
2.City Univ Hong Kong, Dept Mat Sci & Engn, Kowloon Tong, 83 Tat Chee Ave, Hong Kong 999077, Peoples R China
3.Southern Univ Sci & Technol, Dept Mat Sci & Engn, Shenzhen 518000, Peoples R China
4.City Univ Hong Kong, Shenzhen Res Inst, Shenzhen 518057, Peoples R China

Liu, Zhuoxin,Yang, Qi,Wang, Donghong,et al. A Flexible Solid-State Aqueous Zinc Hybrid Battery with Flat and High-Voltage Discharge Plateau[J]. Advanced Energy Materials,2019,9(46).

Liu, Zhuoxin.,Yang, Qi.,Wang, Donghong.,Liang, Guojin.,Zhu, Youhuan.,...&Zhi, Chunyi.(2019).A Flexible Solid-State Aqueous Zinc Hybrid Battery with Flat and High-Voltage Discharge Plateau.Advanced Energy Materials,9(46).

Liu, Zhuoxin,et al."A Flexible Solid-State Aqueous Zinc Hybrid Battery with Flat and High-Voltage Discharge Plateau".Advanced Energy Materials 9.46(2019).