High-voltage deprotonation of layered-type materials as a newly identified cause of electrode degradation

Author:

Yang Junghoon12,Park Sungwon3,Lee Sungsik4,Kim Jungpil2ORCID,Huang Di1,Gim Jihyeon5ORCID,Lee Eungje5ORCID,Kim Gilseob6,Park Kyusung1,Kang Yong-Mook67,Paek Eunsu3,Han Sang-Don1ORCID

Affiliation:

1. Materials, Chemical, and Computational Science Directorate, National Renewable Energy Laboratory, Golden, CO 80401, USA

2. Carbon and Light Materials Application R&D Group, Korea Institute of Industrial Technology, Jeonju, 54853, Republic of Korea

3. Department of Chemical & Biomolecular Engineering, Clarkson University, Potsdam, NY 13699, USA

4. X-ray Science Division, Argonne National Laboratory, Lemont, IL 60439, USA

5. Chemical Sciences and Engineering Division, Argonne National Laboratory, Lemont, IL 60439, USA

6. Department of Materials Science and Engineering, Korea University, Seoul, 02841, Republic of Korea

7. KU-KIST Graduate School of Converging Science and Technology, Korea University, Seoul, 02841, Republic of Korea

Abstract

Herein, we report the transition metal dependent deprotonation of layered type materials during their high voltage (>4.5 V vs. Li/Li+) operation as a potential degradation cause in an electrochemical system.

Funder

U.S. Department of Energy

National Research Foundation of Korea

Korea Institute of Industrial Technology

Publisher

Royal Society of Chemistry (RSC)

Subject

General Materials Science,Renewable Energy, Sustainability and the Environment,General Chemistry

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