Effect of coating thickness of Al-doped Li4Ti5O12 (LTO) on the electrochemical performance of half cell battery

Priyono, Slamet; Marpaung, G F; Simbolon, Tua Raja; Subhan, Achmad

doi:10.1088/1742-6596/817/1/012016

Cited by 3 publications

(3 citation statements)

References 11 publications

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“…1,4,[19][20][21][22] Ion doping is another adoptable method to improve the transportation of electrons and ions within the crystals. 7,23 The introduction of extraneous heteroatoms (Al 3+ , Mn 4+ , Zr 4+ , N 3− , et al) will deteriorate the crystal stability and thus reduce the cycle performance. 7,9,11,24,25 Nevertheless, self-doping of Ti 3+ ions with the coexistence of oxygen defects in the LTO structure will partially relieve the lattice distortion of the spinel structure.…”

Section: Introductionmentioning

confidence: 99%

“…For example, nano‐LTO particles tend to aggregate severely to deteriorate the performance, while preparing a uniform conductive coating on the LTO particles is also a challenge 1,4,19–22 . Ion doping is another adoptable method to improve the transportation of electrons and ions within the crystals 7,23 . The introduction of extraneous heteroatoms (Al 3+ , Mn 4+ , Zr 4+ , N 3− , et al) will deteriorate the crystal stability and thus reduce the cycle performance 7,9,11,24,25 .…”

Section: Introductionmentioning

confidence: 99%

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Chemically driven synthesis of Ti³⁺ self‐doped Li₄Ti₅O₁₂ spinel in molten salt

et al. 2020

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Surface doping of Li 4 Ti 5 O 12 (LTO) with Ti 3+ ions is an effective way to enhance its electrochemical properties for lithium ion batteries (LIBs). Herein, a molten salt approach was reported to synthesize Ti 3+ self-doped LTO powder. The reaction mechanism and the role of molten salt for the synthesis have been systemically discussed. Finally, electrochemical performance of the LTO powder was preliminarily evaluated as anode material of LIBs. The molten salt accelerated the mass transportation for the formation of LTO by transferring a solid diffusion to the diffusion of ions in a liquid media. Self-doping of Ti 3+ ions on the surface of LTO particles was achieved by controlling equilibriums of chemical reactions in the reactor. Electrochemical performance of the LTO powders was effectively promoted by doping Ti 3+ ions on the surface. The discharge capacity of the Ti 3+ self-doped LTO powder prepared at 850°C was 171 mAhg −1 , and the capacity dacayed 9.9% after 200 cycles at a rate of 0.5 C. K E Y W O R D S kinetics, Li 4 Ti 5 O 12 , Li-ion batteries, molten salt, Ti 3+ doping 754 | XIE Et al.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Chemically driven synthesis of Ti³⁺ self‐doped Li₄Ti₅O₁₂ spinel in molten salt

et al. 2020

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“…Ion doping can enhance the intrinsic properties of LTO through influencing the lattice structure and chemical bond and thereby facilitate the electron/ion transport within the crystal . Till now, a variety kind of ions have been studied, such as N 3− , F − , Al 3+ , Mn 4+ , and Mo 6+ . Nonetheless, extraneous heteroatom may reduce the crystal stability thus affecting the cycle performance.…”

Section: Introductionmentioning

confidence: 99%

Ti³⁺ Self‐Doped Li₄Ti₅O₁₂ Anchored on N‐Doped Carbon Nanofiber Arrays for Ultrafast Lithium‐Ion Storage

Yao

Yin

Zhou

et al. 2019

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The ORCID identification number(s) for the author(s) of this article can be found under https://doi.org/10.1002/smll.201905296. Omnibearing acceleration of charge/ion transfer in Li 4 Ti 5 O 12 (LTO) electrodes is of great significance to achieve advanced high-rate anodes in lithium-ion batteries. Here, a synergistic combination of hydrogenated LTO nanoparticles (H-LTO) and N-doped carbon fibers (NCFs) prepared by an electrodepositionatomic layer deposition method is reported. Binder-free conductive NCFs skeletons are used as strong support for H-LTO, in which Ti 3+ is self-doped along with oxygen vacancies in LTO lattice to realize enhanced intrinsic conductivity. Positive advantages including large surface area, boosted conductivity, and structural stability are obtained in the designed H-LTO@NCF electrode, which is demonstrated with preeminent high-rate capability (128 mAh g −1 at 50 C) and long cycling life up to 10 000 cycles. The full battery assembled by H-LTO@NCFs anode and LiFePO 4 cathode also exhibits outstanding electrochemical performance revealing an encouraging application prospect. This work further demonstrates the effectiveness of self-doping of metal ions on reinforcing the high-rate charge/discharge capability of batteries. www.advancedsciencenews.com

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Micro-nano structured VNb9O25 anode with superior electronic conductivity for high-rate and long-life lithium storage

Liang

Huang

Lin

et al. 2021

Journal of Materials Science & Technology

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Effect of coating thickness of Al-doped Li₄Ti₅O₁₂ (LTO) on the electrochemical performance of half cell battery

Cited by 3 publications

References 11 publications

Chemically driven synthesis of Ti³⁺ self‐doped Li₄Ti₅O₁₂ spinel in molten salt

Chemically driven synthesis of Ti³⁺ self‐doped Li₄Ti₅O₁₂ spinel in molten salt

Ti³⁺ Self‐Doped Li₄Ti₅O₁₂ Anchored on N‐Doped Carbon Nanofiber Arrays for Ultrafast Lithium‐Ion Storage

Micro-nano structured VNb9O25 anode with superior electronic conductivity for high-rate and long-life lithium storage

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Effect of coating thickness of Al-doped Li4Ti5O12 (LTO) on the electrochemical performance of half cell battery

Cited by 3 publications

References 11 publications

Chemically driven synthesis of Ti3+ self‐doped Li4Ti5O12 spinel in molten salt

Chemically driven synthesis of Ti3+ self‐doped Li4Ti5O12 spinel in molten salt

Ti3+ Self‐Doped Li4Ti5O12 Anchored on N‐Doped Carbon Nanofiber Arrays for Ultrafast Lithium‐Ion Storage

Micro-nano structured VNb9O25 anode with superior electronic conductivity for high-rate and long-life lithium storage

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Effect of coating thickness of Al-doped Li₄Ti₅O₁₂ (LTO) on the electrochemical performance of half cell battery

Chemically driven synthesis of Ti³⁺ self‐doped Li₄Ti₅O₁₂ spinel in molten salt

Chemically driven synthesis of Ti³⁺ self‐doped Li₄Ti₅O₁₂ spinel in molten salt

Ti³⁺ Self‐Doped Li₄Ti₅O₁₂ Anchored on N‐Doped Carbon Nanofiber Arrays for Ultrafast Lithium‐Ion Storage