A Cost-Effective Mixed Matrix Polyethylene Porous Membrane for Long-Cycle High Power Density Alkaline Zinc-Based Flow Batteries

被引：42

作者：

Chang, Nana ^{[1
,2
]}

Yin, Yanbin ^{[1
]}

Yue, Meng ^{[1
,2
]}

Yuan, Zhizhang ^{[1
]}

Zhang, Huamin ^{[1
,3
]}

Lai, Qinzhi ^{[1
]}

Li, Xianfeng ^{[1
,3
]}

机构：

[1] Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy, Div Energy Storage, Zhongshan Rd 457, Dalian 116023, Peoples R China

[2] Univ Chinese Acad Sci, Sch Chem Sci, Beijing 100049, Peoples R China

[3] Collaborat Innovat Ctr Chem Energy Mat iChEM, Dalian 116023, Peoples R China

来源：

ADVANCED FUNCTIONAL MATERIALS | 2019年 / 29卷 / 29期

关键词：

alkaline; anti-alkali hollow nanospheres; mixed matrix membranes; zinc-based flow batteries; ENERGY-STORAGE; PERFORMANCE; ZEOLITE; ELECTROLYTE;

D O I：

10.1002/adfm.201901674

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Alkaline zinc-based flow batteries (ZFBs) have received considerable interest for renewable energy storage due to their attractive features of low cost and high energy density. However, a membrane with high stability, high selectivity, and high ion conductivity is in urgent need. Herein, an economical mixed matrix membrane with highly anti-alkali microporous hollow spheres (denoted as DM-HM) is developed in this work. With excellent chemical and mechanical stability, DM-HM can achieve a high area capacity of 100 mA h cm(-2) for carbon felt (CF)||Zn@CF symmetrical flow battery, and thereby exhibits 500 stable cycles with a coulombic efficiency of 98.6% and an energy efficiency of 88.3% at 80 mA cm(-2) for alkaline zinc-iron flow battery. Additionally, with 44 wt% of hollow spheres inside matrix, DM-HM can dramatically shorten the ion transport pathway and results in a very high power density battery. A kilowatt stack assembled with DM-HM shows a very impressive performance, further confirming the practicability of this scalable mixed matrix membrane for alkaline ZFBs.

引用

页数：11

共 35 条

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