Reaction kinetics to infer the effect of dopants on ion transport - A case study for Mo+6 doped lithium titanates (Li2TiO3-δ and Li4Ti5O12-δ)

Maiti, Sanat Chandra; Ghadkolai, Milad Azami; Bordia, Rajendra K.; Ghoroi, Chinmay

doi:10.1016/j.ceramint.2018.04.055

Cited by 5 publications

(2 citation statements)

References 52 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…LTO material has a low electronic conductivity, and an inherent electron conductivity of 10 −9 S cm −1 , which gives the electrode a large resistance and poor rate of performance [9,10]. To solve the above problems, ion doping [11][12][13], coating modification [14][15][16][17][18], and morphological changes [19] to enhance the electrochemical performance of LTO materials have become an attractive topic in current research.…”

Section: Introductionmentioning

confidence: 99%

Preparation and electrochemical performance of P⁵⁺-doped Li₄Ti₅O₁₂ as anode material for lithium-ion batteries

Yan

Zhang

et al. 2020

Nanotechnology

View full text Add to dashboard Cite

Li4Ti5−xPxO12 (x = 0, 0.1, 0.2, 0.3, 0.4, 0.5) as an anode material was synthesized using a sol-gel method with Ti(C4H9O)4, Li2CO3, and NH4H2PO4, followed by a calcination treatment. The influences of P5+ doping on the crystal structure, phase composition, and morphology of Li4Ti5−xPxO12 were analyzed by x-ray diffraction and scanning electron microscopy. The electrochemical properties of Li4Ti5−xPxO12 were characterized using galvanostatic charge–discharge cycles, cyclic voltammetry, and alternating current impedance experiments. The results indicate that when x = 0.2, the Li4Ti4.8P0.2O12 sample exhibits the best initial discharge specific capacity of 132.1 mAh g−1 at first cycle, and the discharge specific capacity remains at 128.3 mAh g−1 after 500 cycles.

show abstract

Section: Introductionmentioning

confidence: 99%

Preparation and electrochemical performance of P⁵⁺-doped Li₄Ti₅O₁₂ as anode material for lithium-ion batteries

Yan

Zhang

et al. 2020

Nanotechnology

View full text Add to dashboard Cite

show abstract

“…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

Small

View full text Add to dashboard Cite

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

show abstract

Nano-structure and characterization of carbon composite with Al3+ and Mn4+ co-doped Li4Ti5O12 as anodes for Li-ion batteries

Shuai

Wang

Zhang

et al. 2020

Journal of Alloys and Compounds

View full text Add to dashboard Cite

Reaction kinetics to infer the effect of dopants on ion transport - A case study for Mo+6 doped lithium titanates (Li2TiO3-δ and Li4Ti5O12-δ)

Cited by 5 publications

References 52 publications

Preparation and electrochemical performance of P⁵⁺-doped Li₄Ti₅O₁₂ as anode material for lithium-ion batteries

Preparation and electrochemical performance of P⁵⁺-doped Li₄Ti₅O₁₂ as anode material for lithium-ion batteries

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

Nano-structure and characterization of carbon composite with Al3+ and Mn4+ co-doped Li4Ti5O12 as anodes for Li-ion batteries

Contact Info

Product

Resources

About

Reaction kinetics to infer the effect of dopants on ion transport - A case study for Mo+6 doped lithium titanates (Li2TiO3-δ and Li4Ti5O12-δ)

Cited by 5 publications

References 52 publications

Preparation and electrochemical performance of P5+-doped Li4Ti5O12 as anode material for lithium-ion batteries

Preparation and electrochemical performance of P5+-doped Li4Ti5O12 as anode material for lithium-ion batteries

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

Nano-structure and characterization of carbon composite with Al3+ and Mn4+ co-doped Li4Ti5O12 as anodes for Li-ion batteries

Contact Info

Product

Resources

About

Preparation and electrochemical performance of P⁵⁺-doped Li₄Ti₅O₁₂ as anode material for lithium-ion batteries

Preparation and electrochemical performance of P⁵⁺-doped Li₄Ti₅O₁₂ as anode material for lithium-ion batteries

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