An Asymmetric-Electrolyte Zn-Air Battery with Ultrahigh Power Density and Energy Density

被引：49

作者：

Cai, Pingwei ^{[1
]}

Li, Yan ^{[1
]}

Chen, Junxiang ^{[1
]}

Jia, Jingchun ^{[1
]}

Wang, Genxiang ^{[1
]}

Wen, Zhenhai ^{[1
]}

机构：

[1] Chinese Acad Sci, Fujian Inst Res Struct Matter, Fujian Prov Key Lab Nanomat, Key Lab Design & Assembly Funct Nanostruct, Fuzhou 350002, Fujian, Peoples R China

来源：

CHEMELECTROCHEM | 2018年 / 5卷 / 04期

关键词：

Zn-air batteries; bipolar membranes; electrochemical neutralization energy; asymmetric electrolytes; OXYGEN REDUCTION; LI-AIR; ALLOY NANOPARTICLES; CARBON NANOSHEETS; FUEL-CELL; CATHODE; ELECTROCATALYSTS; CATALYSTS; GRAPHENE; NANOTUBES;

D O I：

10.1002/celc.201701269

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

070208 [无线电物理];

摘要：

Zn-air batteries have attracted enormous research interest, driven by the promise for vehicle propulsion owing to their advantages of high-level safety, low cost, and high specific energy density. Here, we report an asymmetric-electrolyte Zn-air battery with acid catholyte and alkaline anolyte separated by a bipolar membrane. We demonstrate that the as-designed Zn-air battery, thanks to the as-formed concentration cell, can deliver a maximum power density of 380 mW cm(-2) and a specific energy density of 1522 Wh kg(-1) with an open-circuit voltage of 2.25 V. The as-proposed Zn-air battery performance is superior to the conventional Zn-air battery in terms of these pivotal performance parameters.

引用

页码：589 / 592

页数：4

共 59 条

[1]

[Anonymous], 2003, FUEL CELL SYSTEMS EX

[2]

Nanostructured materials for advanced energy conversion and storage devices [J].