Universität zu Köln

Pandit, Bidhan ORCID: 0000-0003-4656-9289, Rondiya, Sachin R., Dzade, Nelson Y., Shaikh, Shoyebmohamad F., Kumar, Nitish, Goda, Emad S., Al-Kahtani, Abdullah A., Mane, Rajaram S., Mathur, Sanjay and Salunkhe, Rahul R. ORCID: 0000-0001-7629-8833 (2021). High Stability and Long Cycle Life of Rechargeable Sodium-Ion Battery Using Manganese Oxide Cathode: A Combined Density Functional Theory (DFT) and Experimental Study. ACS Appl. Mater. Interfaces, 13 (9). S. 11433 - 11442. WASHINGTON: AMER CHEMICAL SOC. ISSN 1944-8252

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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 (alpha-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 alpha-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.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Pandit, Bidhan UNSPECIFIED orcid.org/0000-0003-4656-9289 UNSPECIFIED Rondiya, Sachin R. UNSPECIFIED UNSPECIFIED UNSPECIFIED Dzade, Nelson Y. UNSPECIFIED UNSPECIFIED UNSPECIFIED Shaikh, Shoyebmohamad F. UNSPECIFIED UNSPECIFIED UNSPECIFIED Kumar, Nitish UNSPECIFIED UNSPECIFIED UNSPECIFIED Goda, Emad S. UNSPECIFIED UNSPECIFIED UNSPECIFIED Al-Kahtani, Abdullah A. UNSPECIFIED UNSPECIFIED UNSPECIFIED Mane, Rajaram S. UNSPECIFIED UNSPECIFIED UNSPECIFIED Mathur, Sanjay UNSPECIFIED UNSPECIFIED UNSPECIFIED Salunkhe, Rahul R. UNSPECIFIED orcid.org/0000-0001-7629-8833 UNSPECIFIED
URN:	urn:nbn:de:hbz:38-599316
DOI:	10.1021/acsami.0c21081
Journal or Publication Title:	ACS Appl. Mater. Interfaces
Volume:	13
Number:	9
Page Range:	S. 11433 - 11442
Date:	2021
Publisher:	AMER CHEMICAL SOC
Place of Publication:	WASHINGTON
ISSN:	1944-8252
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language Nanoscience & Nanotechnology; Materials Science, Multidisciplinary Multiple languages
URI:	http://kups.ub.uni-koeln.de/id/eprint/59931