DataVXACS Applied Materials & InterfacesPaper
journal article·2020-06-10

Revealing In Situ Li Metal Anode Surface Evolution upon Exposure to CO2 Using Ambient Pressure X-Ray Photoelectron Spectroscopy

Ane Etxebarria, Dong-Jin Yun, Monika Blum, Yifan Ye, Meiling Sun, Kyung-Jae Lee, Hongyang Su, Miguel Ángel Muñoz-Márquez, Philip N. Ross, Ethan J. Crumlin

ACS Applied Materials & Interfaces· Volume 12· Issue 23
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Source abstract

Abstract

Because they deliver outstanding energy density, next-generation lithium metal batteries (LMBs) are essential to the advancement of both electric mobility and portable electronic devices. However, the high reactivity of metallic lithium surfaces leads to the low electrochemical performance of many secondary batteries. Besides, Li deposition is not uniform, which has been attributed to the low ionic conductivity of the anode surface. In particular, lithium exposure to CO2 gas is considered detrimental due to the formation of carbonate on the solid electrolyte interphase (SEI). In this work, we explored the interaction of Li metal with CO2 gas as a function of time using ambient pressure X-ray photoelectron spectroscopy to clarify the reaction pathway and main intermediates involved in the process during which oxalate formation has been detected. Furthermore, when O2 gas is part of the surrounding environment with CO2 gas, the reaction pathway is bypassed to directly promote carbonate as a single product.
Source: openalex_inverted_index · Quality: baseline

Research context

Energy storageMaterials processing

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

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

Affiliations

Centre for Cooperative Research on Alternative Energies (CIC energiGUNE), Basque Research and Technology Alliance (BRTA), Alava Technology Park, Albert Einstein 48, 01510 Vitoria-Gasteiz, Spain

Departamento de Física de la Materia Condensada, Facultad de Ciencia y Tecnología, Universidad del País Vasco, UPV/EHU, P.O. Box 644, 48080 Bilbao, Spain

Analytical Engineering Group, Samsung Advanced Institute of Technology, Suwon 440-600, South Korea

Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, California 94720 United States

Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States

Joint Center for Artificial Photosynthesis, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States

Department of Physics and Photon Science, Gwangju Institute of Science and Technology (GIST), Gwangju 500-712, South Korea

Hefei National Laboratory for Physical Sciences at the Microscale, Key Laboratory of Strongly-Coupled Quantum Matter Physics of Chinese Academy of Sciences, Key Laboratory of Surface and Interface Chemistry and Energy Catalysis of Anhui Higher Education Institutes, Department of Chemical Physics, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China

Materials Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States

Funding

Basic Energy Sciences · Energy Biosciences Institute · Eusko Jaurlaritza · U.S. Department of Energy · China Scholarship Council

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