journal article·2021-03-10Open access

High Stability and Long Cycle Life of Rechargeable Sodium-Ion Battery Using Manganese Oxide Cathode: A Combined Density Functional Theory (DFT) and Experimental Study

Bidhan Pandit, Sachin R. Rondiya, Nelson Y. Dzade, Shoyebmohamad F. Shaikh, Nitish Kumar, Emad S. Goda, Abdullah A. Al-Kahtani, Rajaram S. Mane, Sanjay Mathur, Rahul R. Salunkhe

Abstract

Sodium-ion batteries (SIBs) can develop cost-effective and safe energy storage technology for substantial energy storage demands. In this work, we have developed manganese oxide (α-MnO2) nanorods for SIB applications. The crystal structure, which is crucial for high-performance energy storage, is examined systematically for the metal oxide cathode. The intercalation of sodium into the α-MnO2 matrix was studied using the theoretical density functional theory (DFT) studies. The DFT studies predict Na ions' facile diffusion kinetics through the MnO2 lattice with an attractively low diffusion barrier (0.21 eV). When employed as a cathode material for SIBs, MnO2 showed a moderate capacity (109 mAh·g-1 at C/20 current rate) and superior life cyclability (58.6% after 800 cycles) in NaPF6/EC+DMC (5% FEC) electrolyte. It shows a much higher capacity of 181 mAh·g-1 (C/20 current rate) in NaClO4/PC (5% FEC) electrolyte, though it suffers fast capacity fading (11.5% after 800 cycles). Our findings show that high crystallinity and hierarchical nanorod morphology of the MnO2 are responsible for better cycling performance in conjunction with fast and sustained charge-discharge behaviors.
Source: europepmc · Quality: candidate unverified · Source record ↗

Research context

OpenAlex topics: Advancements in Battery Materials · Advanced Battery Materials and Technologies · Supercapacitor Materials and Fabrication

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

Affiliations

Institut Charles Gerhardt Montpellier (ICGM), Université de Montpellier, Place Eugène Bataillon, Montpellier 34095, Cedex 5, France

Department of Materials Science and Engineering and Chemical Engineering, Universidad Carlos III de Madrid, Avda. Universidad 30, E-28911 Leganés, Madrid, Spain

School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff, CF10 3AT, Wales, United Kingdom

Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia

Department of Physics, Indian Institute of Technology Jammu Jagti, P.O. Nagrota, NH 44, Jammu 181221, J & K, India

Fire Protection Laboratory, National Institute of Standards, 136, Giza 12211, Egypt

Swami Ramanand Teerth Marathwada University, Nanded, 431606, M.S., India

Chemistry Department, Institute of Inorganic Chemistry, University of Cologne, Greinstr. 6, 50939, Cologne, Germany

Funding

Engineering and Physical Sciences Research Council · Science and Engineering Research Board · Universit?t zu K?ln · King Saud University

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