Layered titanate nanostructures and their derivatives as negative electrode materials for lithium-ion batteries

Hong, Zhensheng; Wei, Mingdeng

doi:10.1039/c2ta01312f

Cited by 85 publications

(52 citation statements)

References 74 publications

(92 reference statements)

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“…Chen et al synthesized Ti 3þ doped TiO 2 via a solvothermal batch method and suggested that the Ti 3þ increased electronic conductivity, resulting in an improved rate performance with a capacity of 81 mAh g À1 at an applied current of 3 A g À1 [39]. Recently, it has been reported that rutile TiO 2 can exhibit good rate capability [32,40]. Hong et al investigated self-assembled nanoporous rutile TiO 2 mesocrystals, which retained a capacity of 77 mAh g À1 at an applied current of 3.4 A g À1 [41].…”

Section: Resultsmentioning

confidence: 98%

High power TiO2 and high capacity Sn-doped TiO2 nanomaterial anodes for lithium-ion batteries

Lübke

Johnson

Makwana

et al. 2015

Journal of Power Sources

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h i g h l i g h t sPhase-pure and Sn-doped TiO 2 nanoparticles (<7 nm) are synthesized via CHFS. The nanomaterial can be used directly after synthesis as a Li-ion battery anode. TiO 2 retains excellent high power performance at current rates up to 10 A g À1 . Doped Sn 4þ in the TiO 2 is electrochemically active. Keywords:Tin doped titania Continuous hydrothermal flow synthesis Lithium ion battery Anatase Anode High power a b s t r a c t A range of phase-pure anatase TiO 2 (~5 nm) and Sn-doped TiO 2 nanoparticles with the formula Ti 1-x Sn x O 2 (where x ¼ 0, 0.06, 0.11 and 0.15) were synthesized using a continuous hydrothermal flow synthesis (CHFS) reactor. Charge/discharge cycling tests were carried out in two different potential ranges of 3 to 1 V and also a wider range of 3 to 0.05 V vs Li/Li þ . In the narrower potential range, the undoped TiO 2 nanoparticles display superior electrochemical performance to all the Sn-doped titania crystallites. In the wider potential range, the Sn-doped samples perform better than undoped TiO 2 . The sample with composition Ti 0.85 Sn 0.15 O 2 , shows a capacity of ca. 350 mAh g À1 at an applied constant current of 100 mA g À1 and a capacity of 192.3 mAh g À1 at a current rate of 1500 mA g À1 . After 500 charge/ discharge cycles (at a high constant current rate of 382 mA g À1 ), the same nanomaterial anode retains a relatively high specific capacity of 240 mAh g À1 . The performance of these nanomaterials is notable, particularly as they are processed into electrodes, directly from the CHFS process (after drying) without any post-synthesis heat-treatment, and they are made without any conductive surface coating.

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Section: Resultsmentioning

confidence: 98%

High power TiO2 and high capacity Sn-doped TiO2 nanomaterial anodes for lithium-ion batteries

Lübke

Johnson

Makwana

et al. 2015

Journal of Power Sources

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“…4,6,7 Titanium dioxide materials have attracted increasing attention as promising LIB anode materials for replacing conventional graphite anodes owing to their superior features such as safety improvement, low cost, cycling stability, and satisfactory chemical and thermal stabilities. 3,[7][8][9][10][11][12][13][14] Particularly, TiO 2 exhibits very small volume expansion (<4%) and, more importantly, operates at a relatively high working voltage (1.7 V vs. Li/Li + ) during Li + insertion/extraction, which eliminates the influence of the solid electrolyte interface layer and avoids the risk of lithium electrodeposition from electrolytes in LIBs, thus further ensuring the cycling stability and safety of batteries. However, the poor Li ion diffusivity and low electronic conductivity of TiO 2 materials (10 −11 -10 −12 −1 m −1 ) limit the reversible capacity and fast charge/discharge rate for practical applications in high-power LIBs.…”

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confidence: 99%

Tailoring of Morphology and Crystalline Structure of Nanoporous TiO₂–TiO–TiN Composite Films for Enhanced Capacity as Anode Materials of Lithium-Ion Batteries

Kure‐Chu

Sakuyama

Suzuki

et al. 2018

J. Electrochem. Soc.

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We report a novel three-dimensional nanoporous TiO 2 -TiO-TiN (Np-TTT) ternary composite film with cylindrical pores of diameter φ30-50 nm and laminated tier thickness of 10-30 nm, which was fabricated straightforwardly on a Ti foil via a one-step anodization in an aqueous nitric electrolyte. The Np-TTT composite films consisted of amorphous TiO 2 matrix, quasi-crystalline TiO, and a small amount of TiN (∼2 at% as N), which are formed simultaneously during anodization through electrochemical and/or chemical reactions in the nitric electrolyte. As a binder-free and auxiliary-component-free anode material for lithium-ion batteries, the capacity and rate performance of the Np-TTT anodes were dependent on both the anodizing conditions and crystalline structure. Particularly, the Np-TTT composite film (∼800 nm-thick) that was annealed at 250 • C for 1 h exhibited the highest areal specific capacity of 440 μAh cm −2 at the 1 st cycle, a high retention of 95% from the 2 nd to the 50 th cycles, and a Coulombic efficiency of approximately 100%. The enhanced capacities of the Np-TTT composite films can be primarily attributed to the synergetic effect of the inclusion of conductive TiN component in bulk TiO 2 matrix films, the active TiO with quasi-crystalline cubic phase, and nanoporous structure with high surface area. Rechargeable lithium-ion batteries (LIBs) are considered one of the most important energy storage device and widely used in various potable electronic devices like mobile phones, cameras, and laptops, owing to their superior energy densities (120-180 W h kg -1 ), low memory effect, long life cycle, and low environmental impacts. 1-3Currently, their applications are quickly expanding to electric vehicles (EVs) and plug-in hybrid electric vehicles (HEVs), where much higher energy densities (above 500 W h kg -1 ) are necessary to supply sufficient power for long-distance driving, accelerating a vehicle quickly, and recovering energy during braking. [4][5][6] However, the safety issue of LIBs is becoming a severe problem because the conventional graphite anode (0.1 V vs. Li + /Li) is prone to experience the growth of lithium dendrites after repetitive charge/discharge, which hinders the development of large-capacity LIBs in EV and HEV applications. 4,6,7 Titanium dioxide materials have attracted increasing attention as promising LIB anode materials for replacing conventional graphite anodes owing to their superior features such as safety improvement, low cost, cycling stability, and satisfactory chemical and thermal stabilities.3,7-14 Particularly, TiO 2 exhibits very small volume expansion (<4%) and, more importantly, operates at a relatively high working voltage (1.7 V vs. Li/Li + ) during Li + insertion/extraction, which eliminates the influence of the solid electrolyte interface layer and avoids the risk of lithium electrodeposition from electrolytes in LIBs, thus further ensuring the cycling stability and safety of batteries. However, the poor Li ion diffusivity and low electronic conductivity of TiO 2 ma...

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“…Lithium-ion batteries (LIBs) based on TiO 2 anodesh ave been widely investigated in recent decades due to the intrinsica dvantages of TiO 2 of low cost, good cycling performance, and high safety. [1,2] Among the variousp olymorphs of TiO 2 ,a natase, [3][4][5][6][7][8] bronze, [9][10][11][12][13][14][15][16] and rutile [17,18] are the most three common forms and have been considereda sm ost suitable candidates for active electrode materials in LIBs. The rutile phase is generally regarded as the most thermodynamically stable structure.…”

Section: Introductionmentioning

confidence: 99%

Nb‐Doped Rutile TiO₂ Mesocrystals with Enhanced Lithium Storage Properties for Lithium Ion Battery

Lan

Zhang

et al. 2017

Chemistry A European J

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A homogeneous Nb-doped rutile TiO mesocrystal material was synthesized successfully through a facile hydrothermal route. The incorporation of Nb not only promotes the crystallization of the building subunits of the rutile TiO mesocrystal, but also improves the electrochemical performance at higher current rates. A capacity of 96.3 mAh g at a current density as high as 40 C and an excellent long-term cycling stability with a capacity loss of approximately 0.006 % per cycle at 5 C could be achieved when an appropriate amount of Nb was doped into rutile TiO mesocrystal. The reasons for the improvement of rate capability may be attributed to the enhancement of electronic conductivity, Li-ion diffusion kinetics, and the surface storage property for the Nb-doped rutile TiO mesocrystal.

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Layered titanate nanostructures and their derivatives as negative electrode materials for lithium-ion batteries

Cited by 85 publications

References 74 publications

High power TiO2 and high capacity Sn-doped TiO2 nanomaterial anodes for lithium-ion batteries

High power TiO2 and high capacity Sn-doped TiO2 nanomaterial anodes for lithium-ion batteries

Tailoring of Morphology and Crystalline Structure of Nanoporous TiO₂–TiO–TiN Composite Films for Enhanced Capacity as Anode Materials of Lithium-Ion Batteries

Nb‐Doped Rutile TiO₂ Mesocrystals with Enhanced Lithium Storage Properties for Lithium Ion Battery

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Layered titanate nanostructures and their derivatives as negative electrode materials for lithium-ion batteries

Cited by 85 publications

References 74 publications

High power TiO2 and high capacity Sn-doped TiO2 nanomaterial anodes for lithium-ion batteries

High power TiO2 and high capacity Sn-doped TiO2 nanomaterial anodes for lithium-ion batteries

Tailoring of Morphology and Crystalline Structure of Nanoporous TiO2–TiO–TiN Composite Films for Enhanced Capacity as Anode Materials of Lithium-Ion Batteries

Nb‐Doped Rutile TiO2 Mesocrystals with Enhanced Lithium Storage Properties for Lithium Ion Battery

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Tailoring of Morphology and Crystalline Structure of Nanoporous TiO₂–TiO–TiN Composite Films for Enhanced Capacity as Anode Materials of Lithium-Ion Batteries

Nb‐Doped Rutile TiO₂ Mesocrystals with Enhanced Lithium Storage Properties for Lithium Ion Battery