Microscale spherical carbon-coated Li4Ti5O12 as ultra high power anode material for lithium batteries

Jung, Hun‐Gi; Myung, Seung‐Taek; Yoon, Chong Seung; Son, Seoung Bum; Oh, Kyu Hwan; Amine, Khalil; Scrosati, B.; Sun, Yang Kook

doi:10.1039/c0ee00620c

Cited by 431 publications

(220 citation statements)

References 33 publications

Supporting

Mentioning

215

Contrasting

Order By: Relevance

“…By a synthesis procedure originally conceived in our laboratory 12 , we have developed a C-coated microscale LTO involving composites between nano-sized LTO particles and carbon. Th is particular morphology is clearly shown by the scanning electron microscopy and transmission electron microscopy (TEM) images reported in Figure 1 .…”

Section: Batterymentioning

confidence: 99%

A high-rate long-life Li4Ti5O12/Li[Ni0.45Co0.1Mn1.45]O4 lithium-ion battery

et al. 2011

Self Cite

View full text Add to dashboard Cite

Lithium batteries are receiving considerable attention as storage devices in the renewable energy and sustainable road transport fi elds. However, low-cost, long-life lithium batteries with higher energy densities are required to facilitate practical application. Here we report a lithium-ion battery that can be cycled at rates as high as 10 C has a life exceeding 500 cycles and an operating temperature range extending from − 20 to 55 ° C. The estimated energy density is 260 W h kg − 1 , which is considerably higher than densities delivered by the presently available Li-ion batteries.

show abstract

Section: Batterymentioning

confidence: 99%

A high-rate long-life Li4Ti5O12/Li[Ni0.45Co0.1Mn1.45]O4 lithium-ion battery

et al. 2011

Self Cite

View full text Add to dashboard Cite

show abstract

“…Poor conductivity is detrimental to the performance of a high-rate Li-ion anode where efficient electron transport is paramount. Typically, carbon coatings [107][108][109][110][111][112][113], carbon [114,115] or graphene nanocomposites [116,117], dopants [118][119][120][121] or surface modifiers [122,123], may be introduced to increase electrical conductivity. Surface modification is an effective means to shorten electronic pathways and alternatives to carbon layers are increasingly attractive [122].…”

Section: Li4ti5o12 (Lto)mentioning

confidence: 99%

Evaluating the performance of nanostructured materials as lithium-ion battery electrodes

et al. 2013

View full text Add to dashboard Cite

Access to the full text of the published version may require a subscription. Rights © Tsinghua University Press and Springer-Verlag Berlin ABSTRACTThe performance of the lithium-ion cell is heavily dependent on the ability of the host electrodes to accommodate and release Li + ions from the local structure. While the choice of electrode materials may define parameters such as cell potential and capacity, the process of intercalation may be physically limited by the rate of solid-state Li + diffusion. Increased diffusion rates in lithium-ion electrodes may be achieved through a reduction in the diffusion path, accomplished by a scaling of the respective electrode dimensions.In addition, some electrodes may undergo large volume changes associated with charging and discharging, the strain of which, may be better accommodated through nanostructuring. Failure of the host to accommodate such volume changes may lead to pulverisation of the local structure and a rapid loss of capacity. In this review article, we seek to highlight a number of significant gains in the development of nanostructured lithium-ion battery architectures (both anode and cathode), as drivers of potential next-generation electrochemical energy storage devices.

show abstract

“…Therefore, the introduction of the TiO 2 -SiO 2 groups into the spinel causes significant stabilization of the capacitance, which positively influences the working life of the electrode. theoretical capacity and superior rate capability [71][72][73][74][75][76][77][78][79][80][81][82][83][84][85][86]. In particular, by using flexible current collectors such as carbon nanotubes and fibers, flexible LTO composite electrodes have been obtained [71,86].…”

Section: Impedance Spectroscopymentioning

confidence: 99%

Li4Ti5O12/TiO2-SiO2 and Li4Ti5O12/SiO2 composites as an anode material for Li-ion batteries

Kurc

2017

Ionics

View full text Add to dashboard Cite

The commercial electrode Li 4 Ti 5 O 12 was modified with SiO 2 and TiO 2 -SiO 2 . All samples were characterized by scanning electron microscope (SEM), particle size distribution (PSD), porous structure parameters (low-temperature N 2 sorption), galvanostatic charge-discharge test, cyclic voltammetry (CV), and electrochemical impedance spectroscopy (EIS). Appropriate amount of TiO 2 -SiO 2 and SiO 2 could effectively reduce the electrochemical polarization of Li 4 Ti 5 O 12 and enhance electrochemical reaction kinetics of Li + insertion/ deinsertion. Moreover, Li 4 Ti 5 O 12 /TiO 2 -SiO 2 provides a high rate capacity of 165 mAh g −1 at the high current density of 0.5 C. To investigate cycle stability of the electrode materials at high current density, the measurements were directly carried out at 3 C. SEM images of the LTO/TiO 2 -SiO 2 , LTO, and LTO/SiO 2 particles after galvanostatic charging/discharging show that they were coated by a uniform layer (the SEI layer).

show abstract

Microscale spherical carbon-coated Li4Ti5O12 as ultra high power anode material for lithium batteries

Cited by 431 publications

References 33 publications

A high-rate long-life Li4Ti5O12/Li[Ni0.45Co0.1Mn1.45]O4 lithium-ion battery

A high-rate long-life Li4Ti5O12/Li[Ni0.45Co0.1Mn1.45]O4 lithium-ion battery

Evaluating the performance of nanostructured materials as lithium-ion battery electrodes

Li4Ti5O12/TiO2-SiO2 and Li4Ti5O12/SiO2 composites as an anode material for Li-ion batteries

Contact Info

Product

Resources

About