Solar-enhanced hybrid lithium-oxygen batteries with a low voltage and superior long-life stability

Hao Gong; Hairong Xue; Bin Gao; Yang Li; Xingyu Yu; Xiaoli Fan; Songtao Zhang; Tao Wang; Jianping He

doi:10.1039/d0cc04155f

Solar-enhanced hybrid lithium-oxygen batteries with a low voltage and superior long-life stability

Chem Commun (Camb). 2020 Nov 14;56(88):13642-13645. doi: 10.1039/d0cc04155f. Epub 2020 Oct 16.

Authors

Hao Gong¹, Hairong Xue, Bin Gao, Yang Li, Xingyu Yu, Xiaoli Fan, Songtao Zhang, Tao Wang, Jianping He

Affiliation

¹ College of Materials Science and Technology, Jiangsu Key Laboratory of Electrochemical Energy-Storage Technologies, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, P. R. China. Xuehr@nuaa.edu.cn wangtao0729@nuaa.edu.cn jianph@nuaa.edu.cn.

PMID: 33063062
DOI: 10.1039/d0cc04155f

Abstract

Lithium-oxygen batteries (LOBs) can suffer from large charge overpotentials during the sluggish oxygen evolution reaction (OER). Here, a strategy used in the photo-electrochemical (PEC) water oxidation area is integrated into hybrid LOBs. Coating α-Fe₂O₃ with NiOOH results in enhanced electrochemical properties, and the as-assembled hybrid LOBs deliver a low charge voltage of 3.03 V, high energy efficiency of 88%, and long-term stability for over 350 hours.