Suppressing corrosion and hydrogen gas evolution in aluminum-air batteries via conductive nanocomposites

被引：16

作者：

Deyab, M. A. ^{[1
]}

Mohsen, Q. ^{[2
]}

机构：

[1] Egyptian Petr Res Inst EPRI, Cairo, Egypt

[2] Taif Univ, Dept Chem, Coll Sci, At Taif, Saudi Arabia

来源：

JOURNAL OF POWER SOURCES | 2021年 / 506卷

关键词：

Al-air battery; Conductive nanocomposites; Hydrogen gas; Polyaniline; Carbon nanofibers; AA5052 ALLOY ANODE; PERFORMANCE EVALUATION; ALKALINE ELECTROLYTE; COMPLEX ADDITIVES; BEHAVIOR; INHIBITOR; PROTECTION; COATINGS;

D O I：

10.1016/j.jpowsour.2021.230171

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Alternative energy sources such as Al-air batteries appear to be promising. However, the formation of a passive layer and the evolution of hydrogen gas during battery operation reduce capacity retention and cyclability. To address these issues, we used conductive nanocomposites (PANI@CNF) based on polyaniline (PANI) and carbon nanofibers to coat the Al electrode. The findings show that the PANI@CNF nanocomposites are able to reduce corrosion in Al electrode and prevent 92% hydrogen gas evolution. A battery with Al/PANI@0.8CNF electrode produces a high capacity density (2730 mAh g(-1)) and a high energy density (4067 Wh kg(-1)) at a current density of 10 mA cm(-2). This study proposes a new strategy for improving the performance of Al-air batteries based on conductive nanocomposites.

引用

页数：6

共 48 条

[1] A facile and scalable approach to fabricating free-standing polymer-Carbon nanotube composite electrodes [J].