Achieving High Aqueous Energy Storage via Hydrogen-Generation Passivation

Yuhang Wang; Xiaoqi Cui; Yueyu Zhang; Lijuan Zhang; Xingao Gong; Gengfeng Zheng

doi:10.1002/adma.201602583

Achieving High Aqueous Energy Storage via Hydrogen-Generation Passivation

Adv Mater. 2016 Sep;28(35):7626-32. doi: 10.1002/adma.201602583. Epub 2016 Jul 4.

Authors

Yuhang Wang¹, Xiaoqi Cui¹, Yueyu Zhang², Lijuan Zhang¹, Xingao Gong³, Gengfeng Zheng⁴

Affiliations

¹ Laboratory of Advanced Materials, Department of Chemistry, Collaborative Innovation Center of Chemistry for Energy Materials, Fudan University, Shanghai, 200433, China.
² Department of Physics, Fudan University, Shanghai, 200433, China.
³ Department of Physics, Fudan University, Shanghai, 200433, China. xggong@fudan.edu.cn.
⁴ Laboratory of Advanced Materials, Department of Chemistry, Collaborative Innovation Center of Chemistry for Energy Materials, Fudan University, Shanghai, 200433, China. gfzheng@fudan.edu.cn.

PMID: 27375288
DOI: 10.1002/adma.201602583

Abstract

A new design strategy for polyimides/carbon nanotube networks is reported, aiming to passivate the hydrogen-evolution mechanism on the molecular structures of electrodes, thus substantially boosting their aqueous energy-storage capabilities. The intrinsic sluggish hydrogen-evolution activity of polyimides is further passivated via Li(+) association during battery charging, leading to a much wider voltage window and exceptional energy-storage capability.

Keywords: aqueous batteries; passivated HER activity; polyimides; power density; voltage window.