Synthesis and characterization of Li2Zn0.6Cu0.4Ti3O8 anode material via a sol-gel method

Li, Yingying; Du, Chenqiang; Liu, Jie; Zhang, Fei; Xu, Qin; Qu, Deyang; Zhang, Xinhe; Tang, Zhiyuan

doi:10.1016/j.electacta.2015.03.138

Cited by 29 publications

(12 citation statements)

References 27 publications

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“…However, the low conductivity and poor lithium diffusion coefficient impede its practical application. Hence, many efforts have been devoted to modify Li 2 ZnTi 3 O 8 using an alien ion (such as Ag + , Ni 2+ , Cu 2+ , Al 3+ ), or by coating a other phases with high conductivity (such as carbon-based materials, , LiCoO 2 ), or reducing the diameter of particles . However, carbon-based material coating or nanocrystallization technology often reduces the volumetric specific energy of the battery due to the low powder tap density.…”

Section: Introductionmentioning

confidence: 99%

Rapid Lithiation and Delithiation Property of V-Doped Li₂ZnTi₃O₈ as Anode Material for Lithium-Ion Battery

Yuan

et al. 2015

ACS Sustainable Chem. Eng.

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Li 2−x V x ZnTi 3 O 8 (x = 0, 0.05, 0.1 and 0.15) anode (negative electrode) materials were successfully synthesized by a facile solid-state reaction method, and the structure, morphology, and electrochemical properties of the Li 2−x V x ZnTi 3 O 8 materials were investigated. Li 2−x V x ZnTi 3 O 8 (x = 0 and 0.05) samples show the pure phase structure with P4 3 32 space group, but several rutile TiO 2 peaks are founded in Li 2−x V x ZnTi 3 O 8 (x ≥ 0.1). V-doping does not change the electrochemical reaction mechanism and destroy the structure of Li 2 ZnTi 3 O 8 . All samples show a size distribution under 1 μm, but the V-doped powders show a narrower particle size distribution and less agglomeration than those of pristine Li 2 ZnTi 3 O 8 . Electrochemical kinetics results reveal that the V-doped Li 2 ZnTi 3 O 8 samples display higher reversibility, larger lithium diffusion coefficients and lower charge-transfer resistances than those of pristine Li 2 ZnTi 3 O 8 . Galvanostatic electrochemical tests show that the Li 1.95 V 0.05 ZnTi 3 O 8 /Li half cell delivers the highest lithiation capacities at various rates (213.3, 171.2, 132.5, and 84.7 mA h g −1 at 0.2, 1, 2, and 5 C rates, respectively), whereas the Li 2 ZnTi 3 O 8 /Li half cell delivers much less lithiation capacities at all rates (184.5, 129.5, 107.3, and 24 mA h g −1 at 0.2, 1, 2, and 5 C rates, respectively). The simple preparation process, low preparation cost, excellent cycling stability, and wide voltage range give the Li 1.95 V 0.05 ZnTi 3 O 8 potential for commercial application in the future.

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Section: Introductionmentioning

confidence: 99%

Rapid Lithiation and Delithiation Property of V-Doped Li₂ZnTi₃O₈ as Anode Material for Lithium-Ion Battery

Yuan

et al. 2015

ACS Sustainable Chem. Eng.

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“…As a result, so‐called tunnels are formed into which Li‐ions freely intercalate, whereas deformation changes are almost completely absent. Thus, such a structure causes increased stability with respect to the formation of Li dendrites 5 …”

Section: Introductionmentioning

confidence: 99%

“…Thus, such a structure causes increased stability with respect to the formation of Li dendrites. 5 For the potential metal (M) candidates for a Li 2 MTi 3 O 8 anode of ion batteries, we selected zinc (Zn), 6 cobalt (Co) 7 and copper (Cu). 8 In order to obtain Li titanates, a high-temperature solid-state synthesis method is used that provides the formation of dense ceramics by sintering a stoichiometric mixture of powders of titanium dioxide (TiO 2 ), lithium carbonate (Li 2 CO 3 ) and zinc oxide (ZnO) or acetate (synthesis of Li 2 ZnTi 3 O 8…”

Section: Introductionmentioning

confidence: 99%

Comparison of different methods for Li₂MTi₃O₈ (M – Co, Cu, Zn) synthesis

Мацукевич

Кулак

Palkhouskaya

et al. 2021

J of Chemical Tech & Biotech

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BACKGROUND Mesoporous powders of lithium titanates Li2MTi3O8 (M – Co, Cu, Zn) of spinel structure are promising as anode materials for Li‐ion batteries. RESULTS Li2MTi3O8 (M – Co, Cu, Zn) were obtained by the sol–gel method, using self‐propagating high‐temperature synthesis (SHS) from glycine–citrate–nitrate mixtures, and also by the SHS method from aqueous solutions. The crystal structure, phase composition, microstructure and dispersion of the obtained materials were studied. CONCLUSION It was established that the SHS method for the synthesis of lithium titanates has several advantages compared with the sol–gel method, including not requiring solvents, reduced aggregation of particles, a higher specific surface area and low bulk density of the obtained powders. The electrode obtained on the basis of Zn‐containing Li titanate by the SHS method from glycine–citrate–nitrate mixtures showed the highest charging capacity of 160 mAh g−1 and high cyclic stability. © 2021 Society of Chemical Industry (SCI).

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“…So far, the synthetic methods of LZTO mainly include solid-state and liquid-state routes. ,− The solid-state method is easy for large-scale production. In the work, Nb-doped LZTO was synthesized by a simple one-step solid-state method (Scheme ) at 700 °C for 3 h according to the TG results shown in Figure S1 of the Supporting Information (SI).…”

Section: Introductionmentioning

confidence: 99%

Synthesis of Nb-Doped Li₂ZnTi₃O₈ Anode with Long Cycle Life and Applications in the LiMn₂O₄/Li₂ZnTi₃O₈ Full Cell

Zhang

Xun

Shen

et al. 2020

ACS Sustainable Chem. Eng.

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An easy solid-state method is used to prepare Li2ZnTi3O8 (LZTO) doped by the Nb element (LZTN1O). Nb-doping not only improves the specific surface area, total pore volume, and ionic conductivity but also reduces the particle size and transfer resistance of LZTN1O. In addition, the structure has been stabilized, and good electrical contact has been obtained for the LZTN1O electrode via Nb-doping. Compared with LZTO, the electrochemical performance of LZTN1O at 0–55 °C is greatly improved. After 600 cycles, 99.1% of the capacity for the second cycle is obtained at 25 °C at 1 A g–1. For the current densities up to 2–4 A g–1, no capacity loss based on the specific capacity of the second cycle occurs at the 200th cycle at 25 °C. At 3 A g–1, 180.8 mA h g–1 is delivered at the 120th cycle. At 1 A g–1 for 55 °C, no capacity is lost (corresponding to the second cycle) after 100 cycles. At 0.8 A g–1 for 0 °C, 178.8 mA h g–1 can be obtained for the 60th cycle, and even no capacity is lost (corresponding to the second cycle) for the 500th cycle at 0.5 A g–1. Moreover, when LZTN1O was applied in the LiMn2O4/LZTN1O full cell, the initial discharge specific capacity based on the mass of LiMn2O4 is 90.2 mA h g–1 at 0.5 C in 2.1–3.8 V.

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Synthesis and characterization of Li2Zn0.6Cu0.4Ti3O8 anode material via a sol-gel method

Cited by 29 publications

References 27 publications

Rapid Lithiation and Delithiation Property of V-Doped Li₂ZnTi₃O₈ as Anode Material for Lithium-Ion Battery

Rapid Lithiation and Delithiation Property of V-Doped Li₂ZnTi₃O₈ as Anode Material for Lithium-Ion Battery

Comparison of different methods for Li₂MTi₃O₈ (M – Co, Cu, Zn) synthesis

Synthesis of Nb-Doped Li₂ZnTi₃O₈ Anode with Long Cycle Life and Applications in the LiMn₂O₄/Li₂ZnTi₃O₈ Full Cell

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Synthesis and characterization of Li2Zn0.6Cu0.4Ti3O8 anode material via a sol-gel method

Cited by 29 publications

References 27 publications

Rapid Lithiation and Delithiation Property of V-Doped Li2ZnTi3O8 as Anode Material for Lithium-Ion Battery

Rapid Lithiation and Delithiation Property of V-Doped Li2ZnTi3O8 as Anode Material for Lithium-Ion Battery

Comparison of different methods for Li2MTi3O8 (M – Co, Cu, Zn) synthesis

Synthesis of Nb-Doped Li2ZnTi3O8 Anode with Long Cycle Life and Applications in the LiMn2O4/Li2ZnTi3O8 Full Cell

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Rapid Lithiation and Delithiation Property of V-Doped Li₂ZnTi₃O₈ as Anode Material for Lithium-Ion Battery

Rapid Lithiation and Delithiation Property of V-Doped Li₂ZnTi₃O₈ as Anode Material for Lithium-Ion Battery

Comparison of different methods for Li₂MTi₃O₈ (M – Co, Cu, Zn) synthesis

Synthesis of Nb-Doped Li₂ZnTi₃O₈ Anode with Long Cycle Life and Applications in the LiMn₂O₄/Li₂ZnTi₃O₈ Full Cell