Synthesis and characterization of mesoporous titanium pyrophosphate as lithium intercalation electrode materials

Shi, Zhicong; Wang, Qiong; Ye, Weiling; Li, Yixiao; Yang, Yong

doi:10.1016/j.micromeso.2005.09.013

Cited by 46 publications

(42 citation statements)

References 31 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…By increasing the P/Ti molar ratio, the first two plateaux (Fig. 5d), raising a discharge and charge plateau of 2.6 V which is consistent with previous work [10,56,63] or even slightly shifted from these values [64].…”

Section: Resultssupporting

confidence: 91%

“…Titanium phosphate synthesis and characterization Samples were prepared by a modified copolymer surfactant, EO20-PO70-EO20, Pluronic (P123) template method [10]. The protocol of synthesis included dissolving of 4.5 g of P123 in appropriate volume of ethanol by the help of ultrasonication, titanium tetrabutoxide (Ti(OC 4 H 9 ) 4 ) added to the above solution followed by the addition of 4.12 g of PCl 3 slowly and dropwise.…”

Section: Methodsmentioning

confidence: 99%

“…Mesoporous materials have taken extensive attention due to their involvement in diversity of applications including, for example, catalysis [3,4], sensors [5,6], host materials for lithium-ion storage [7][8][9][10], hydrogen production [11,12] and storage [13,14], electrochromic windows [15,16], and dye-sensitized solar cells [17][18][19].…”

Section: Introductionmentioning

confidence: 99%

“…The breakthrough [20][21][22] reporting the possibility of using of olivine LiFePO 4 as cathode material in lithium-ion batteries as stable electrode has led to intensive and focus research on metal phosphates in general and on lithium iron phosphate in particular [10,[23][24][25][26][27]. In general, the major drawbacks of the majority of metal phosphate materials for lithium-ion batteries application are their low electronic conductivity, which renders their usage inapplicable.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Titanium phosphates as positive electrode in lithium-ion batteries: composition, phase purity and electrochemical performance

Attia

Wang

Huang

et al. 2011

J Solid State Electrochem

Self Cite

View full text Add to dashboard Cite

Titanium phosphate materials were synthesized by evaporation-induced self assembly method by using Ti(OC4H9)(4) and PCl3, in the presence of Pluronic (P123) as a non-ionic surfactant template. The molar ratios of P/Ti and the heat treatment of the materials affected their structures, particle geometries and electrochemical performances as indicated by X-ray powder diffraction, thermal gravimetric analysis, scanning electron and transmission electron microscopy and other electrochemical techniques. As expected, increasing the temperature to 800 A degrees C for 3 h resulted in losing the mesoporosity and generally led to a decrease in capacity of these materials. Cyclic voltammetry showed that TiP2O7 is formed at 500 A degrees C for 10 h at a molar ratio P/Ti = 0.412 as amorphous phase. On the other hand, at molar ratio P/Ti = 2.06 showed sharp peaks indicated TiP2O7 transformed into crystalline material showed lower peak separation potential indicated that kinetic reactions might be favored.Xiamen University; National Natural Science Foundation of China [20873115, 90606015]; National Basic Research Program of China (973 program) [2007CB209702

show abstract

Section: Resultssupporting

confidence: 91%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Titanium phosphates as positive electrode in lithium-ion batteries: composition, phase purity and electrochemical performance

Attia

Wang

Huang

et al. 2011

J Solid State Electrochem

Self Cite

View full text Add to dashboard Cite

show abstract

“…However, the low electronic conductivity remains a major hurdle for its practical applications. 23,26 A carbon coating on TiP 2 O 7 can serve two purposes: (1) it improves the kinetics of electron transfer, and (2) [22,28]. However, they found that their cells had limited cycling performance due to the dissolution of TiP 2 O 7 over time.…”

mentioning

confidence: 99%

High Performance TiP₂O₇Based Intercalation Negative Electrode for Aqueous Lithium-Ion Batteries via a Facile Synthetic Route

Wu¹,

Shanbhag²,

Wise³

et al. 2015

J. Electrochem. Soc.

View full text Add to dashboard Cite

A composite TiP 2 O 7 /amorphous carbon material (C-TiP 2 O 7 ) was prepared by an intensive mechanical mixing/solid-state synthesis method at 800 • C. Physical properties were characterized via powder X-ray diffraction, Rietveld refinement, SEM, BET and TGA. Electrochemical performance was evaluated in both a three electrode test setup and two electrode coin cells via cyclic voltammetry, electrochemical impedance spectroscopy and galvanostatic cycling tests. The C-TiP 2 O 7 composite demonstrated excellent cycling performance in 1 M Li 2 SO 4 when matched with LiMn 2 O 4 as a positive electrode: when cycled at C/2 for 150 cycles, the capacity retention is over 91% with coulombic efficiencies exceeding 99%. The initial discharge capacity obtained at a C/10 rate is 91 mAh/g which is about 75% of theoretical capacity 121 mAh/g. The apparent diffusion coefficient of C-TiP 2 O 7 composite calculated from cyclic voltammetry result is 3. 3-6 However these materials typically suffer from inherently low electronic conductivity.2 Several strategies such as carbon coating, doping and conductive polymer coating have been developed to improve the electrochemical performance of polyanion-based materials for battery applications. 7-19A less explored phase, TiP 2 O 7 , is not a promising cathode candidate for lithium-ion battery due to its low redox potential of 2.6 V versus Li/Li + . 20,21 However, this redox potential makes TiP 2 O 7 an ideal anode material candidate for aqueous lithium-ion batteries, 22,23 which have been recently explored by several research groups. 21,22 TiP 2 O 7 has a 3D framework structure with a corner sharing a TiO 6 octahedra and a PO 4 tetrahedra, and a phase change reaction between TiP 2 O 7 and LiTiP 2 O 7 . [20][21][22][23][24][25][26][27] Such an open frame structure enables rapid Li + insertion and extraction and good thermal stability. However, the low electronic conductivity remains a major hurdle for its practical applications.23,26 A carbon coating on TiP 2 O 7 can serve two purposes: (1) it improves the kinetics of electron transfer, and (2) [22,28]. However, they found that their cells had limited cycling performance due to the dissolution of TiP 2 O 7 over time.Combining high energy mechanical alloying with intimate carbon coating has proven effective in improving electrochemical performance of polyanion-based materials. 19,[29][30][31][32] Ball milling with intimate carbon helps to prepare a homogenous mixture of precursors and reduce particle size during following thermal treatment. In addition, this combination can decrease the thermal treatment time needed. In this study, we demonstrated C-TiP 2 O 7 composite prepared by high energy mechanical alloying combined with intimate carbon coating has superior cycling performance in aqueous lithium-ion electrolyte. * Electrochemical Society Active Member.z E-mail: whitacre@andrew.cmu.edu ExperimentalSynthesis of electrode materials.-The kinetically assisted synthesis process includes following steps: (1) the precursors for synthesizing C-Ti...

show abstract

Microwave synthesized TiP₂O₇ assisted by carbon‐coating as anode material for aqueous rechargeable lithium‐ion batteries

et al. 2020

View full text Add to dashboard Cite

TiP 2 O 7 and carbon-coated TiP 2 O 7 were successfully synthesized via a rapid microwave method and were electrochemically tested in 1 M Li 2 SO 4 aqueous electrolyte. Physical properties were characterized through X-ray diffraction, thermal gravimetric analysis, scanning electron microscopy, and transmission electron microscopy. The relationship between processing parameters (graphite concentration, ball mill duration, microwave energy input, heating duration) and the final products' electrochemical performance was studied. Full cell tests with LiMn 2 O 4 cathode materials were also tested to obtain cycling stability and rate performance results. The highest specific capacity of C-TiP 2 O 7 was 109 mAh g-1 (90.1% of the theoretical capacity) from the cyclic voltammetry test with the scan rate of 0.3 mV s-1. After 200 cycles under the rate of 0.5C, the C-TiP 2 O 7 's capacity still maintained 92% of the initial capacity. These results suggested that the rapid microwave synthesis method is a promising process to synthesis the electrode materials with excellent electrochemical performances. K E Y W O R D S anode material, aqueous rechargeable lithium-ion batteries, energy storage, rapid processing technology 1 INTRODUCTION Lithium-ion batteries are playing a significant role in electronic products like smartphones, laptops, digital cameras, portable music players. [1] Rüetschi has come up with the "three E" criteria: Energy, Economics, and Environment, [2] in which batteries need to be designed to improve the wellness of the environment and to store energy with a safe, efficient, and convenient method. The Aqueous Rechargeable Lithium-ion Battery (ARLB) This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

show abstract

Synthesis and characterization of mesoporous titanium pyrophosphate as lithium intercalation electrode materials

Cited by 46 publications

References 31 publications

Titanium phosphates as positive electrode in lithium-ion batteries: composition, phase purity and electrochemical performance

Titanium phosphates as positive electrode in lithium-ion batteries: composition, phase purity and electrochemical performance

High Performance TiP₂O₇Based Intercalation Negative Electrode for Aqueous Lithium-Ion Batteries via a Facile Synthetic Route

Microwave synthesized TiP₂O₇ assisted by carbon‐coating as anode material for aqueous rechargeable lithium‐ion batteries

Contact Info

Product

Resources

About

Synthesis and characterization of mesoporous titanium pyrophosphate as lithium intercalation electrode materials

Cited by 46 publications

References 31 publications

Titanium phosphates as positive electrode in lithium-ion batteries: composition, phase purity and electrochemical performance

Titanium phosphates as positive electrode in lithium-ion batteries: composition, phase purity and electrochemical performance

High Performance TiP2O7Based Intercalation Negative Electrode for Aqueous Lithium-Ion Batteries via a Facile Synthetic Route

Microwave synthesized TiP2O7 assisted by carbon‐coating as anode material for aqueous rechargeable lithium‐ion batteries

Contact Info

Product

Resources

About

High Performance TiP₂O₇Based Intercalation Negative Electrode for Aqueous Lithium-Ion Batteries via a Facile Synthetic Route

Microwave synthesized TiP₂O₇ assisted by carbon‐coating as anode material for aqueous rechargeable lithium‐ion batteries