TY - JOUR
T1 - Na3.5(MnVFeTi)0.5(PO4)3
T2 - A Multi-Transition-Metal-Ion-Engineered NASICON-Type Cathodes for Sodium Ion Batteries
AU - Soundharrajan, Vaiyapuri
AU - Alfaza, Ghalib
AU - Arifiadi, Anindityo
AU - Feleke, Demelash
AU - Nithiananth, Subramanian
AU - Piao, JunJi
AU - Zeng, Zhiyuan
AU - Pham, Duong Tung
AU - Kim, Chunjoong
AU - Kim, Jaekook
PY - 2024/9/22
Y1 - 2024/9/22
N2 - Electrochemically active Na-superionic conductor (NASICON)-type cathodes have the structural flexibility to include various transition elements, thus enabling high power outputs benefited by multi-electron redox reactions. This study amalgamated multiple transition metal ions to construct a new NASICON-type cathode i. e., carbon coated Na3.5(MnVFeTi)0.5(PO4)3 (NMVFTP/C) for Na-ion batteries (NIBs). The NMVFTP/C cathode engineered in this study demonstrated stable Na+-storage capacity, including long-term cycling stability up to 4000 cycles at 3000 mA g−1 with 96 % capacity retention and a high-rate output capacity of 85.16 mAh g−1 at 2500 mA g−1. To elucidate the ion transport process within the cathode, density functional theory modeling was employed. The low energy barrier for the diffusion of Na+ in the NMVFTP/C materials was proved to be a key factor supporting our material's superior electrochemical performances. © 2024 Wiley-VCH GmbH.
AB - Electrochemically active Na-superionic conductor (NASICON)-type cathodes have the structural flexibility to include various transition elements, thus enabling high power outputs benefited by multi-electron redox reactions. This study amalgamated multiple transition metal ions to construct a new NASICON-type cathode i. e., carbon coated Na3.5(MnVFeTi)0.5(PO4)3 (NMVFTP/C) for Na-ion batteries (NIBs). The NMVFTP/C cathode engineered in this study demonstrated stable Na+-storage capacity, including long-term cycling stability up to 4000 cycles at 3000 mA g−1 with 96 % capacity retention and a high-rate output capacity of 85.16 mAh g−1 at 2500 mA g−1. To elucidate the ion transport process within the cathode, density functional theory modeling was employed. The low energy barrier for the diffusion of Na+ in the NMVFTP/C materials was proved to be a key factor supporting our material's superior electrochemical performances. © 2024 Wiley-VCH GmbH.
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U2 - 10.1002/batt.202400526
DO - 10.1002/batt.202400526
M3 - RGC 21 - Publication in refereed journal
SN - 2566-6223
JO - Batteries & Supercaps
JF - Batteries & Supercaps
M1 - e202400526
ER -
