Li4Ti5O12-rutile TiO2 nanosheet composite as a high performance anode material for lithium-ion battery

Yi, Ting‐Feng; Yang, Shuang-Yuan; Zhu, Yan‐Rong; Xie, Ying; Zhu, Rong

doi:10.1016/j.ijhydene.2015.04.151

Cited by 23 publications

(9 citation statements)

References 52 publications

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“…In order to further investigate the electrochemical properties of the electrode, CV measurements were performed at a scanning rate of 0.1 mV s −1 between 1 and 2.5 V (vs Li/Li + ). Usually, the sharper the peak in CV curves, the faster the Li + insertion/deinsertion . The potential difference (Δϕ) between anodic and cathodic peaks can reflect the degree of polarization of the electrode .…”

Section: Resultsmentioning

confidence: 99%

Ternary‐Phase Li₄Ti₅O₁₂/TiO₂ Nanosheet Composite for High Rate Lithium‐Ion Batteries

et al. 2018

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A ternary‐phase Li4Ti5O12/TiO2 (LTO/TiO2) nanosheet composite is successfully synthesized by a one‐pot hydrothermal method followed by two‐step annealing ways. It exhibits high specific capacities of 170 mAh g−1, 154 mAh g−1, 138.5 mAh g−1, and 123.9 mAh g−1 at 1 C, 10 C, 30 C and 50 C, respectively. After 3000 cycles at 20 C, over 89.2 % original specific capacity retention is maintained with approximately 100 % columbic efficiency. The excellent rate performance and cycling stability are attributed to the high crystallinity, the thin nanosheets, the high surface area, and an appropriate amount of nanostructured TiO2 seeds dispersed in the Li4Ti5O12 (LTO) matrix for the final products.

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Section: Resultsmentioning

confidence: 99%

Ternary‐Phase Li₄Ti₅O₁₂/TiO₂ Nanosheet Composite for High Rate Lithium‐Ion Batteries

et al. 2018

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“…Therefore, many endeavors to circumvent the drawback of Li 4 Ti 5 O 12 have been explored. For example, diminishing the size of Li 4 Ti 5 O 12 to nano ranges, the doping with other ions (such as Mg 2+ , Al 3+ , Ni 2+ , La 3+ , Zn 2+[18] ), compositing with other materials (such as TiO 2 , SnO 2 ,Cu, Ag and so on), and/or coating with carbon using different carbon source (such as glucose, pitch, graphene, carbon nanotubes and so on). Due to their sustainable and environment‐friendly natures, biomass has been extensively investigated as precursors for carbon.…”

Section: Introductionmentioning

confidence: 99%

Carbon/Li₄Ti₅O₁₂ Composite Spheres Prepared Using Chinese Yam as Carbon Source with Ultrahigh Capacity as Anode Materials for Lithium Ion Batteries

Liang

Liu

et al. 2018

Energy Tech

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Spinel structured Li4Ti5O12 (LTO) spheres modified with carbon (Carbon/LTO composites) using Chinese yam (CY) as carbon source have been obtained by a hydrothermal method combining with a calcining at 700 °C in N2 atmosphere. The influences of the additions of CY on the morphology, structure, carbon content and also the electrochemical properties of the resulted carbon/LTO composite spheres have been investigated in details. SEM and TEM investigations show that all the composites possess spherical morphology and consist of nanosized Li4Ti5O12 crystals modified with carbon. With the increase of CY additions, the size of Li4Ti5O12 primary crystals decrease gradually, and reach to a turn over point and then the crystal size turn to large ones when the CY content increased further. It has been demonstrated that carbon modification of Li4Ti5O12 with Chinese yam as carbon source could efficiently improve the electrochemical performance of Li4Ti5O12. One of the composite sample named as C/LTO‐10 shows an ultrahigh initial specific capacity of about 211.9 mAh ⋅ g−1 at a current density of 1 C. It shows excellent cycle performance and maintains a specific capacity of 184.5 mAh ⋅ g−1 even after 300 cycles. A specific capacity of 123.5 mAh ⋅ g−1 still could be delivered at a high current density of 30 C, exhibiting also superior rate capability.

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“…Besides graphite, Li 4 Ti 5 O 12 is another intercalation type material known for its low volume change and high reversibility. However, the high insertion potential (about 1.5 V vs. Li + /Li) and low capacity (~150 mAh g -1 ) of Li 4 Ti 5 O 12 restrict its application [11][12][13].…”

Section: Introductionmentioning

confidence: 99%

Solvothermal synthesis of Li3VO4: Morphology control and electrochemical performance as anode for lithium-ion batteries

Yuan

Feng

Zhang

et al. 2017

International Journal of Hydrogen Energy

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Li4Ti5O12-rutile TiO2 nanosheet composite as a high performance anode material for lithium-ion battery

Cited by 23 publications

References 52 publications

Ternary‐Phase Li₄Ti₅O₁₂/TiO₂ Nanosheet Composite for High Rate Lithium‐Ion Batteries

Ternary‐Phase Li₄Ti₅O₁₂/TiO₂ Nanosheet Composite for High Rate Lithium‐Ion Batteries

Carbon/Li₄Ti₅O₁₂ Composite Spheres Prepared Using Chinese Yam as Carbon Source with Ultrahigh Capacity as Anode Materials for Lithium Ion Batteries

Solvothermal synthesis of Li3VO4: Morphology control and electrochemical performance as anode for lithium-ion batteries

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Li4Ti5O12-rutile TiO2 nanosheet composite as a high performance anode material for lithium-ion battery

Cited by 23 publications

References 52 publications

Ternary‐Phase Li4Ti5O12/TiO2 Nanosheet Composite for High Rate Lithium‐Ion Batteries

Ternary‐Phase Li4Ti5O12/TiO2 Nanosheet Composite for High Rate Lithium‐Ion Batteries

Carbon/Li4Ti5O12 Composite Spheres Prepared Using Chinese Yam as Carbon Source with Ultrahigh Capacity as Anode Materials for Lithium Ion Batteries

Solvothermal synthesis of Li3VO4: Morphology control and electrochemical performance as anode for lithium-ion batteries

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Product

Resources

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Ternary‐Phase Li₄Ti₅O₁₂/TiO₂ Nanosheet Composite for High Rate Lithium‐Ion Batteries

Ternary‐Phase Li₄Ti₅O₁₂/TiO₂ Nanosheet Composite for High Rate Lithium‐Ion Batteries

Carbon/Li₄Ti₅O₁₂ Composite Spheres Prepared Using Chinese Yam as Carbon Source with Ultrahigh Capacity as Anode Materials for Lithium Ion Batteries