Advanced Low-Cost, High-Voltage, Long-Life Aqueous Hybrid Sodium/Zinc Batteries Enabled by a Dendrite-Free Zinc Anode and Concentrated Electrolyte

被引：266

作者：

Li, Wei ^{[1
,2
]}

Wang, Kangli ^{[1
]}

Zhou, Min ^{[1
]}

Zhan, Houchao ^{[2
]}

Cheng, Shijie ^{[1
]}

Jiang, Kai ^{[1
]}

机构：

[1] Huazhong Univ Sci & Technol, Sch Elect & Elect Engn, State Key Lab Adv Electromagnet Engn & Technol, Wuhan 430074, Hubei, Peoples R China

[2] Huazhong Univ Sci & Technol, Sch Mat Sci & Engn, State Key Lab Mat Proc & Die & Mould Technol, Wuhan 430074, Hubei, Peoples R China

来源：

ACS APPLIED MATERIALS & INTERFACES | 2018年 / 10卷 / 26期

基金：

中国国家自然科学基金; 中国博士后科学基金;

关键词：

aqueous hybrid sodium/zinc batteries; Zn dendrite; concentrated electrolyte; NASICON-structured cathodes; high voltage; high energy density; LITHIUM-ION BATTERY; RECHARGEABLE BATTERY; PERFORMANCE; NA3V2(PO4)(3); CATHODE;

D O I：

10.1021/acsami.8b04085

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Aqueous batteries are promising energy storage systems but are hindered by the limited selection of anodes and narrow electrochemical window to achieve satisfactory cyclability and decent energy density. Here, we design aqueous hybrid Na-Zn batteries by using a carbon-coated Zn (Zn@C) anode, 8 M NaClO4 + 0.4 M Zn(CF3SO3)(2) concentrated electrolyte coupled with NASICON-structured cathodes. The Zn@C anode achieves stable Zn stripping/plating and improved kinetics without Zn dendrite formation due to the porous carbon film facilitating homogeneous current distribution and Zn deposition. Furthermore, the concentrated electrolyte offers a large electrochemical window (similar to 2.5 V) and permits stable cycling of cathodes. As a result, the hybrid batteries exhibit extraordinary performance including high voltage, high energy density (100-150 Wh kg(-1) for half battery and 71 Wh kg(-1) for full battery), and excellent cycling stability of 1000 cycles.

引用

页码：22059 / 22066

页数：8

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