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TiFeNb10O29−δ anode for high-power and durable lithium-ion batteries.
- Source :
- Chemical Communications; 6/4/2023, Vol. 59 Issue 44, p6710-6713, 4p
- Publication Year :
- 2023
-
Abstract
- A new Fe-substituted TiFeNb<subscript>10</subscript>O<subscript>29−δ</subscript> (TFNO) anode is proposed. TFNO possesses a defective and polycrystalline ReO<subscript>3</subscript> Roth–Wadsley shear structure with a slightly larger lattice volume. Electrochemical behavior results and density functional theory (DFT) calculations show that TFNO can facilitate the kinetics of electron/Li<superscript>+</superscript> transportation and demonstrates pseudocapacitive behavior. Consequently, TFNO exhibits superior high rate capacity and cycling stability compared to pristine TNO, offering 100 mA h g<superscript>−1</superscript> at an ultrahigh rate of 50C and a high capacity retention of 86.7% over 1000 cycles at 10C. This work reveals that TFNO could be a promising anode material for fast-charging, stable, and safe LIBs. [ABSTRACT FROM AUTHOR]
- Subjects :
- LITHIUM-ion batteries
DENSITY functional theory
ANODES
Subjects
Details
- Language :
- English
- ISSN :
- 13597345
- Volume :
- 59
- Issue :
- 44
- Database :
- Complementary Index
- Journal :
- Chemical Communications
- Publication Type :
- Academic Journal
- Accession number :
- 163983700
- Full Text :
- https://doi.org/10.1039/d3cc00678f