DataVXAdvanced Energy MaterialsPaper
journal article·2019-11

Taming Interfacial Instability in Lithium–Oxygen Batteries: A Polymeric Ionic Liquid Electrolyte Solution

Zhenjie Liu, Jun Huang, Yantao Zhang, Bo Tong, Feng Guo, Jiawei Wang, Yang Shi, Rui Wen, Zhibin Zhou, Limin Guo, Zhangquan Peng

Advanced Energy Materials· Volume 9· Issue 41
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Source abstract

Abstract

Abstract There is a growing concern about the cyclability and safety, in particular, of the high‐energy density lithium–metal batteries. This concern is even greater for Li–O2 batteries because O2 that is transported from the cathode to the anode compartment, can exacerbate side reactions and dendrite growth of the lithium metal anode. The key to solving this dilemma lays in tailoring the solid electrolyte interphase (SEI) formed on the lithium metal anode in Li–O2 batteries. Here it is reported that a new electrolyte, formed from LiFSI as the salt and a mixture of tetraethylene glycol dimethyl ether and polymeric ionic liquid of P[C5O2NMA,11]FSI as the solvent, can produce a stable electrode (both cathode and anode)|electrolyte interface in Li–O2 batteries. Specifically, this new electrolyte, when in contact with lithium metal anodes, has the ability to produce a uniform SEI with high ionic conductivity for Li+ transport and desired mechanical property for suppression of dendritic lithium growth. Moreover, the electrolyte possesses a high oxidation tolerance that is very beneficial to the oxygen electrochemistry on the cathode of Li–O2 batteries. As a result, enhanced reversibility and cycle life are realized for the resultant Li–O2 batteries.
Source: crossref · Quality: baseline

Research context

Energy storagePolymers

OpenAlex topics: Advanced Battery Materials and Technologies · Advancements in Battery Materials · Advanced Battery Technologies Research

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

State Key Laboratory of Electroanalytical Chemistry Changchun Institute of Applied Chemistry Chinese Academy of Science Changchun 130022 China

School of Applied Chemistry and Engineering University of Science and Technology of China Hefei 230026 China

College of Chemistry and Chemical Engineering Central South University Changsha 410083 China

School of Chemistry and Chemical Engineering Huazhong University of Science and Technology Wuhan 430074 China

i‐Lab CAS Center for Excellence in Nanoscience Suzhou Institute of Nano‐Tech and Nano‐Bionics Chinese Academy of Science Suzhou 215123 China

Key Laboratory of Molecular Nanostructure and Nanotechnology and Beijing National Laboratory for Molecular Science CAS Research/Education Center for Excellence in Molecular Sciences Institute of Chemistry Chinese Academy of Sciences Beijing 100190 China

Institute of Biomass Functional Materials Interdisciplinary Studies Jilin Engineering Normal University Changchun 130052 China

School of Applied Physics and Materials Wuyi University Jiangmen 529020 China

Funding

Education Department of Jilin Province · National Natural Science Foundation of China · Ministry of Science and Technology of the People's Republic of China

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