TY - JOUR
T1 - Molybdenum Incorporated O3‐type Sodium Layered Oxide Cathodes for High‐Performance Sodium‐Ion Batteries
AU - Moossa, Buzaina
AU - Abraham, Jeffin James
AU - Gayara, R. A. Harindi
AU - Ahmed, Abdul Moiz
AU - Shahzad, Rana Faisal
AU - Kahraman, Ramazan
AU - Al-Qaradawi, Siham
AU - Rasul, Shahid
AU - Shakoor, Rana Abdul
N1 - Funding information: The authors would like to acknowledge the financial support of QU internal grant-QUCG-CENG-20/21-2. This publication was also made possible by NPRP Grant #NPRP11S-1225-170128 from the Qatar National Research Fund (a member of the Qatar Foundation). The SEM, TEM, and elemental mapping of the samples studied in this research were accomplished in the central laboratories unit, at Qatar University. Statements made here are the responsibility of the authors.
PY - 2023/12/1
Y1 - 2023/12/1
N2 - Transition metal layered oxide materials with a general formula NaxMO2 (M=Ni, Mn, Co, Fe) are widely researched with various possible electrode configurations. A significant improvement in structural and electrochemical performance is required to broaden the future applications of sodium‐based layered oxide materials for Na‐ion batteries. In this work, O3‐type NaNi(1‐x)/2Mn(1‐x)/2MoxO2 (x=0, 0.05,0.1) layered oxide cathode materials were synthesized by solid‐state reaction method, and its structural, thermal and electrochemical performance in Sodium (Na) ion battery was investigated. The structural analysis reveals that a single phase highly crystalline O3‐type cathode material with irregular particle shape was formed. The introduction of molybdenum (Mo) improves the thermal stability of cathode materials, which can be attributed to the improved TMO2 layers that provide stability to the material. The addition of Mo to Na layered oxide cathode materials influences their electrochemical performance. In comparison, the developed cathode materials, the NaNi0.475Mn0.475Mo0.05O2, exhibited excellent specific discharge capacity (∽154mAh/g) at C/20 rate, (an increase of ∽20% when compared to the NaNi0.5Mn0.5O2) which can be attributed to the increased capacitance effect by the addition of Mo. The EIS study reveals that the diffusion of Na+ into/from the host structure is rapid during the first cycle and then gradually reduces with subsequent cycling due to the formation of the SEI layer, which hinders Na+ migration. This has a potential effect on the improved electrochemical performance of the material.This article is protected by copyright. All rights reserved.
AB - Transition metal layered oxide materials with a general formula NaxMO2 (M=Ni, Mn, Co, Fe) are widely researched with various possible electrode configurations. A significant improvement in structural and electrochemical performance is required to broaden the future applications of sodium‐based layered oxide materials for Na‐ion batteries. In this work, O3‐type NaNi(1‐x)/2Mn(1‐x)/2MoxO2 (x=0, 0.05,0.1) layered oxide cathode materials were synthesized by solid‐state reaction method, and its structural, thermal and electrochemical performance in Sodium (Na) ion battery was investigated. The structural analysis reveals that a single phase highly crystalline O3‐type cathode material with irregular particle shape was formed. The introduction of molybdenum (Mo) improves the thermal stability of cathode materials, which can be attributed to the improved TMO2 layers that provide stability to the material. The addition of Mo to Na layered oxide cathode materials influences their electrochemical performance. In comparison, the developed cathode materials, the NaNi0.475Mn0.475Mo0.05O2, exhibited excellent specific discharge capacity (∽154mAh/g) at C/20 rate, (an increase of ∽20% when compared to the NaNi0.5Mn0.5O2) which can be attributed to the increased capacitance effect by the addition of Mo. The EIS study reveals that the diffusion of Na+ into/from the host structure is rapid during the first cycle and then gradually reduces with subsequent cycling due to the formation of the SEI layer, which hinders Na+ migration. This has a potential effect on the improved electrochemical performance of the material.This article is protected by copyright. All rights reserved.
KW - cathode materials
KW - energy storage
KW - layered oxide battery materials
KW - sodium ion batteries
KW - solid-state
UR - http://www.scopus.com/inward/record.url?scp=85174615231&partnerID=8YFLogxK
U2 - 10.1002/ente.202300437
DO - 10.1002/ente.202300437
M3 - Article
SN - 2194-4288
VL - 11
JO - Energy Technology
JF - Energy Technology
IS - 12
M1 - 2300437
ER -