Advanced electrochemical investigations of niobium modified Li2ZnTi3O8 lithium ion battery anode materials

Firdous, Naila; Arshad, Nasima; Simonsen, Søren Bredmose; Prasanna, K.; Norby, Poul

doi:10.1016/j.jpowsour.2020.228186

Cited by 20 publications

(12 citation statements)

References 60 publications

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“…So far, doping with cations such as V +5 , Na 1+ , Al 3+ , Cu 2+ , Ag +, and so on has been done. For carbon coating, different precursors can be used, such as pitch, sucrose, citric acid, oxalic acid, etc. − In our previous study, niobium-doped Li 2 ZnTi 3 O 8 was reported, which likewise displayed outstanding electrochemical activity . To study the synergic effect of doping and carbon coating, this study is employed.…”

Section: Introductionmentioning

confidence: 99%

Synergic Effect of Niobium Doping and Carbon Coating on the Performance of a Li₂ZnTi₃O₈ Anode Candidate for Lithium Ion Batteries

2020

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This study designates the outcomes of niobium doping and carbon coating on the structural and electrochemical performance of Li2ZnTi3O8 as an anode electrode for use in Li-ion batteries. Nb-doped, carbon-coated Li2ZnTi2.95Nb0.05O8/C (LZTO-2) and pristine Li2ZnTi3O8 (LZTO-1) anode materials were synthesized using facile sonication-assisted solid-state synthesis using sucrose as the carbon source. The synthesized materials are characterized using X-ray diffraction (XRD), Raman spectroscopy, scanning electron microscopy (SEM), and transmission electron microscopy (TEM). Electrochemical investigations are carried out using galvanostatic cycling, cyclic voltammetry (CV), and electrochemical impedance spectroscopy (EIS). Structural analysis shows that the synthesized materials crystallize in the P4332 space group. It is observed through these studies that Nb doping (5%) and carbon (10%) coating have improved significantly the electrochemical performance of the (LZTO-2) as compared to (LZTO-1). LZTO-2 exhibits excellent cyclic performance and specific capacity (mA h g–1) at all C-rates. The excellent specific capacity of LZTO-2 at higher C-rates (5C, 10C, 20C, and 30C), i.e., 156, 135, 113, and 77 mA h g–1, respectively, as compared to LZTO-1, i.e., 127, 89, 48, and 26 mA h g–1, respectively, can be attributed to low charge transfer resistance resulting from having the proper amount of dopant and carbon content. Higher specific capacities, low charge transfer resistance, and higher values of Li-ion diffusion coefficient indicate that LZTO-2 is a magnificent anode electrode for commercial Li-ion batteries.

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Section: Introductionmentioning

confidence: 99%

Synergic Effect of Niobium Doping and Carbon Coating on the Performance of a Li₂ZnTi₃O₈ Anode Candidate for Lithium Ion Batteries

2020

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“…Cubic Li 2 ZnTi 3 O 8 (LZTO) has been investigated as a potential anode material due to its lack of toxicity, high safety, low cost, relatively high theoretical capacity and low discharge voltage plateau of approximately 0.5 V ( vs. Li/Li + ). 4–6 But its poor electronic conductivity has restricted its practical applications. 7–10 Therefore, finding methods to improve the electronic and ionic conductivities of LZTO is extremely important.…”

Section: Introductionmentioning

confidence: 99%

K-doped Li₂ZnTi₃O₈/C as an efficient anode material with high performance for Li-ion batteries

Jing

Zeng

Zhu³

et al. 2022

RSC Adv.

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“…LZTO shows almost zero volumetric change during the cyclic electrochemical Li + ion insertion/extraction reactions ( Chen et al., 2015a ; Inamdar et al., 2018 ), and when compared with LTO, it enables to deliver a higher theoretical specific capacity of 229 mAh / g, thereby presenting a promising anode material of LIBs ( Hong et al, 2010 , 2011 ). Moreover, because of the lower discharge potential (0.5 V), the LZTO anode can effectively hinder the generation of lithium dendrites and show a better intrinsic safety over graphite ( Firdous et al., 2020 ).…”

Section: Introductionmentioning

confidence: 99%

“…The fluctuations between rising and falling are also found in MgSiO 3 ( Yang et al., 2019 ) and La 2 O 3 ( Meng et al., 2019 ) surface coatings. Alternatively, ion doping into the crystal lattice of LZTO is emerging recently as a facile strategy to enhance the electrical conductivity and the electrochemical performances of doped LZTO anodes ( Chen et al., 2018 , 2017 ; Firdous et al., 2020 ; Li et al., 2017a ; Qie and Tang, 2014 ; Shen et al., 2019 ; Tang et al., 2014a , 2014b ; Chen et al., 2015b ; Wang et al., 2019b ; Yang et al., 2018 ; Yi et al., 2015 ; Zhang et al., 2021 , 2020 ). Unfortunately, the underlying stability of the crystal structure of the ion-doped LZTO during the cyclic charge-discharge process, to our best knowledge, has not been well addressed.…”

Section: Introductionmentioning

confidence: 99%

Solid-state self-template synthesis of Ta-doped Li2ZnTi3O8 spheres for efficient and durable lithium storage

Yang

et al. 2021

iScience

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Summary Ta-doped Li 2 ZnTi 3 O 8 (LZTO) spheres (Li 2 ZnTi 3- x Ta x O 8 ; where x is the synthetic chemical input, x = 0, 0.03, 0.05, 0.07) are synthesized via solid-state reaction using mesoporous TiO 2 spheres as the self-template. The majority of Ta 5+ ions are uniformly doped into crystal lattices of LZTO through the Ti↔Ta substitution, and the rest forms the piezoelectric LiTaO 3 secondary phase on the surface, as confirmed by X-ray diffraction refinement, Raman spectroscopy, density functional theory, and electron microscopy. Electrochemical impedance spectroscopy demonstrates that the Ta 5+ doping creates rapid electronic transportation channels for high Li + ion diffusion kinetics; however, the LiTaO 3 surface coating is beneficial to improve the electronic conductivity. At the optimal x = 0.05, Li 2 ZnTi 3- x Ta x O 8 spheres exhibit a reversible capacity of 90.2 mAh / g after 2000 cycles with a high coulombic efficiency of ≈100% at 5.0 A/g, thus enabling a promising anode material for lithium-ion batteries with high power and energy densities.

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Advanced electrochemical investigations of niobium modified Li2ZnTi3O8 lithium ion battery anode materials

Cited by 20 publications

References 60 publications

Synergic Effect of Niobium Doping and Carbon Coating on the Performance of a Li₂ZnTi₃O₈ Anode Candidate for Lithium Ion Batteries

Synergic Effect of Niobium Doping and Carbon Coating on the Performance of a Li₂ZnTi₃O₈ Anode Candidate for Lithium Ion Batteries

K-doped Li₂ZnTi₃O₈/C as an efficient anode material with high performance for Li-ion batteries

Solid-state self-template synthesis of Ta-doped Li2ZnTi3O8 spheres for efficient and durable lithium storage

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Advanced electrochemical investigations of niobium modified Li2ZnTi3O8 lithium ion battery anode materials

Cited by 20 publications

References 60 publications

Synergic Effect of Niobium Doping and Carbon Coating on the Performance of a Li2ZnTi3O8 Anode Candidate for Lithium Ion Batteries

Synergic Effect of Niobium Doping and Carbon Coating on the Performance of a Li2ZnTi3O8 Anode Candidate for Lithium Ion Batteries

K-doped Li2ZnTi3O8/C as an efficient anode material with high performance for Li-ion batteries

Solid-state self-template synthesis of Ta-doped Li2ZnTi3O8 spheres for efficient and durable lithium storage

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Synergic Effect of Niobium Doping and Carbon Coating on the Performance of a Li₂ZnTi₃O₈ Anode Candidate for Lithium Ion Batteries

Synergic Effect of Niobium Doping and Carbon Coating on the Performance of a Li₂ZnTi₃O₈ Anode Candidate for Lithium Ion Batteries

K-doped Li₂ZnTi₃O₈/C as an efficient anode material with high performance for Li-ion batteries