An all-aqueous redox flow battery with unprecedented energy density

被引：205

作者：

Zhang, Jing ^{[1
]}

Jiang, Gaopeng ^{[1
]}

Xu, Pan ^{[1
]}

Kashkooli, Ali Ghorbani ^{[1
]}

Mousavi, Mahboubeh ^{[1
]}

Yu, Aiping ^{[1
]}

Chen, Zhongwei ^{[1
]}

机构：

[1] Univ Waterloo, Waterloo Inst Sustainable Energy, Waterloo Inst Nanotechnol, Dept Chem Engn, Waterloo, ON N2L 3G1, Canada

来源：

ENERGY & ENVIRONMENTAL SCIENCE | 2018年 / 11卷 / 08期

基金：

加拿大自然科学与工程研究理事会;

关键词：

POROUS MEMBRANES; METAL-FREE; ELECTROLYTE; STORAGE; IODIDE; POLYIODIDE; ZINC;

D O I：

10.1039/c8ee00686e

中图分类号：

O6 [化学];

学科分类号：

070301 [无机化学];

摘要：

Redox flow batteries are of particular interest because of the flexible power and energy storage originating from their unique architecture, but their low energy density has inhibited their widespread dissemination. In this work, a novel strategy of tuning the pH of the electrolyte environment is put forward to enhance the battery voltage, and eventually achieve the goal of high energy density for all-aqueous redox flow batteries. With this strategy, a hybrid alkaline zinc-iodine redox flow battery has been designed with a 0.47 V potential enhancement by switching the anolyte from acidic to basic, thus inspiring an experimental high energy density of 330.5 W h L-1. This is an unprecedented record to date for an all-aqueous redox flow battery.

引用

页码：2010 / 2015

页数：6

共 46 条

[1]

A Neutral pH Aqueous Organic-Organometallic Redox Flow Battery with Extremely High Capacity Retention [J].