Template-free synthesis of mesoporous spinel lithium titanate microspheres and their application in high-rate lithium ion batteries

Tang, Yufeng; Yang, Li; Zheng, Qiang; Jianshu, Huang

doi:10.1039/b907480e

Cited by 130 publications

(92 citation statements)

References 27 publications

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“…Unfortunately, downsizing the LTO particle to the nanoscale inevitably diminishes the powder tap density and volumetric energy density of the cell [21,22]. Mesoporous material, assembled with wellcrystalline nanoparticles, is an ideal structure to resolve the above-mentioned problems and still can keep a favorable electrode-electrolyte interface for the rapid lithium-ion diffusion [23,24]. The key challenge is the construction of an efficient conducting pathway in such structure to quickly transfer electrons throughout the mesoporous spheres [21,22].…”

Section: Introductionmentioning

confidence: 99%

Nitridated mesoporous Li4Ti5O12 spheres for high-rate lithium-ion batteries anode material

Zhao

Pang

Zhang

et al. 2013

J Solid State Electrochem

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Nitridated mesoporous Li 4 Ti 5 O 12 spheres were synthesized by a simple ammonia treatment of Li 4 Ti 5 O 12 derived from mesoporous TiO 2 particles and lithium acetate dihydrate via a solid state reaction in the presence of polyethylene glycol 20000. The carbonization of polyethylene glycol could effectively restrict the growth of primary particles, which was favorable for lithium ions diffusing into the nanosized TiO 2 lattice during the solid state reaction to form a pure phase Li 4 Ti 5 O 12 . After a subsequent thermal nitridation treatment, a high conductive thin TiO x N y layer was in situ constructed on the surface of the primary nanoparticles. As a result, the nitridated mesoporous Li 4 Ti 5 O 12 structure, possessing shorter lithium-ion diffusion path and better electrical conductivity, displays significantly improved rate capability. The discharge capacity reaches 138 mAhg −1 at 10 C rate and 120 mAhg −1 at 20 C rate in the voltage range of 1-3 V.

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Section: Introductionmentioning

confidence: 99%

Nitridated mesoporous Li4Ti5O12 spheres for high-rate lithium-ion batteries anode material

Zhao

Pang

Zhang

et al. 2013

J Solid State Electrochem

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“…The invention of Li 4 Ti 5 O 12 anode material supports the idea of constructing low toxic, environmentfriendly, structurally stable, low cost battery [32]. Li 4 Ti 5 O 12 is well known as a ''zero-strain'' insertion material, structural stability and good lithium ion mobility in the chargedischarge process [33]. Spinel lithium titanate has a high lithium intercalation voltage of 1.55 V against a lithium electrode with a theoretical capacity of 170 mAh g -1 and an actual discharge capacity of over 160 mAh g -1 [34].…”

Section: Introductionmentioning

confidence: 99%

Synthesis and characterization of nanostructured lithium titanate by simple peroxo route

Selvamurugan

Hirankumar²,

Karuppuchamy

2016

J Mater Sci: Mater Electron

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Li 4 Ti 5 O 12 nanopowder was successfully synthesized by simple peroxo-solution growth technique. The physicochemical properties of synthesized powders were studied by powder X-ray diffraction spectroscopy, Fourier transform infrared spectroscopy, Raman spectroscopy and Scanning electron microscopy. The effect of calcination on structure, morphology and the electrochemical performances of Li 4 Ti 5 O 12 have also been investigated. The electrochemical property of the Li 4 Ti 5 O 12 was analyzed by galvanostatic charge/discharge test. The storage capacity of 90.27 mAh g -1 was achieved for Li 4 Ti 5 O 12 nanopowder.

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“…[7][8][9][10][11][12] It is well known that the morphology of Li 4 Ti 5 O 12 plays an important role in lithium intercalating activity and cycling stability of electrode materials. 13 Thus, suitable morphology, structure and particle size are indispensable for Li 4 Ti 5 O 12 to be regarded as an anode material for lithium ion batteries.…”

Section: Introductionmentioning

confidence: 99%

Low‐temperature Synthesis of Peony‐like Spinel Li₄Ti₅O₁₂ as a High‐performance Anode Material for Lithium Ion Batteries

Xia

Jiao

et al. 2011

Chin. J. Chem.

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Peony-like spinel Li 4 Ti 5 O 12 was synthesized via calcination of precursor at the temperature of 400 ℃, and the precursor was prepared through a hydrothermal process in which the reaction of hydrous titanium oxide with lithium hydroxide was conducted at 180 ℃. The as-prepared product was investigated by SEM, TEM and XRD, respectively. As anode material for lithium ion battery, the Li 4 Ti 5 O 12 obtained was also characterized by galvanostatic tests and cyclic voltammetry measurements. It is found that the peony-like Li 4 Ti 5 O 12 exhibited high rate capability of 119.7 mAh•g -1 at 10 C and good capacity retention of 113.8 mAh•g -1 after 100 cycles at 5 C, and these results indicate the peony-like Li 4 Ti 5 O 12 has promising applications for lithium ion batteries with high performance.

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Template-free synthesis of mesoporous spinel lithium titanate microspheres and their application in high-rate lithium ion batteries

Cited by 130 publications

References 27 publications

Nitridated mesoporous Li4Ti5O12 spheres for high-rate lithium-ion batteries anode material

Nitridated mesoporous Li4Ti5O12 spheres for high-rate lithium-ion batteries anode material

Synthesis and characterization of nanostructured lithium titanate by simple peroxo route

Low‐temperature Synthesis of Peony‐like Spinel Li₄Ti₅O₁₂ as a High‐performance Anode Material for Lithium Ion Batteries

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Template-free synthesis of mesoporous spinel lithium titanate microspheres and their application in high-rate lithium ion batteries

Cited by 130 publications

References 27 publications

Nitridated mesoporous Li4Ti5O12 spheres for high-rate lithium-ion batteries anode material

Nitridated mesoporous Li4Ti5O12 spheres for high-rate lithium-ion batteries anode material

Synthesis and characterization of nanostructured lithium titanate by simple peroxo route

Low‐temperature Synthesis of Peony‐like Spinel Li4Ti5O12 as a High‐performance Anode Material for Lithium Ion Batteries

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Low‐temperature Synthesis of Peony‐like Spinel Li₄Ti₅O₁₂ as a High‐performance Anode Material for Lithium Ion Batteries