Spherical lithium-rich layered Li1.13[Mn0.534Ni0.233Co0.233]0.87O2 with concentration-gradient outer layer as high-performance cathodes for lithium ion batteries

Yang, Xiukang; Wang, Xianyou; Zou, Guishan; Hu, L.; Shu, Hongbo; Yang, Shuo; Liu, Li; Hu, Hai; Yuan, Hao; Hu, Benan; Wei, Qingyi; Yi, Lanhua

doi:10.1016/j.jpowsour.2013.01.021

Cited by 56 publications

(30 citation statements)

References 52 publications

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“…Elemental distribution of the electrode materials is important and usually related to their electrochemical properties [34]. To visualize the distributions of Na, Ti and O elements, energy-dispersive X-ray spectroscopy (EDS) mapping for NLTO-800 sample was performed.…”

Section: Resultsmentioning

confidence: 99%

Hollow and hierarchical Na2Li2Ti6O14 microspheres with high electrochemical performance as anode material for lithium-ion battery

Fan

Zhong

et al. 2017

Sci. China Mater.

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Relying on a solvent thermal method, spherical Na2Li2Ti6O14 was synthesized. All samples prepared by this method are hollow and hierarchical structures with the size of about 2-3 μm, which are assembled by many primary nanoparticles (~300 nm). Particle morphology analysis shows that with the increase of temperature, the porosity increases and the hollow structure becomes more obvious. Na2Li2Ti6O14 obtained at 800°C exhibits the best electrochemical performance among all samples. Charge-discharge results show that Na2Li2Ti6O14 prepared at 800°C can delivers a reversible capacity of 220.1, 181.7, 161.6, 144.2, 118.1 and 97.2 mA h g −1 at 50, 140, 280, 560, 1400, 2800 mA g −1 . However, Na2Li2Ti6O14-bulk only delivers a reversible capacity of 187, 125.3, 108.3, 88.7, 69.2 and 54.8 mA h g −1 at the same current densities. The high electrochemical performances of the as-prepared materials can be attributed to the distinctive hollow and hierarchical spheres, which could effectively reduce the diffusion distance of Li ions, increase the contact area between electrodes and electrolyte, and buffer the volume changes during Li ion intercalation/deintercalation processes.

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Section: Resultsmentioning

confidence: 99%

Hollow and hierarchical Na2Li2Ti6O14 microspheres with high electrochemical performance as anode material for lithium-ion battery

Fan

Zhong

et al. 2017

Sci. China Mater.

View full text Add to dashboard Cite

show abstract

“…In this method, instead of using CSTR, we employed an easy and manipulable process. The electrochemical properties of these materials were also thoroughly investigated and compared with the same class of cathode materials prepared by other methods mentioned above [28,29]. In order to further improve the electrochemical performance of Li 1 …”

Section: Introductionmentioning

confidence: 99%

Facile synthesis of spherical xLi2MnO3·(1−x)Li(Mn0.33Co0.33Ni0.33)O2 as cathode materials for lithium-ion batteries with improved electrochemical performance

Zhao

2015

Journal of Power Sources

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“…The precursors for preparing Li-rich materials are usually hydroxide or carbonate. Co-precipitation [8,[23][24][25][26], sol-gel [27][28][29], molten-salt method [30] and solid combustion [16,31,32] are well known as conventional synthetic methods for preparing Li-rich materials precursors. However, morphology and elemental distribution controls plays a crucial role in further improving electrochemical performance.…”

Section: Introductionmentioning

confidence: 99%

High capacity Li1.2Mn0.54Ni0.13Co0.13O2 cathode materials synthesized using mesocrystal precursors for lithium-ion batteries

Zhang

Jin

Wang

et al. 2015

Journal of Alloys and Compounds

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Spherical lithium-rich layered Li1.13[Mn0.534Ni0.233Co0.233]0.87O2 with concentration-gradient outer layer as high-performance cathodes for lithium ion batteries

Cited by 56 publications

References 52 publications

Hollow and hierarchical Na2Li2Ti6O14 microspheres with high electrochemical performance as anode material for lithium-ion battery

Hollow and hierarchical Na2Li2Ti6O14 microspheres with high electrochemical performance as anode material for lithium-ion battery

Facile synthesis of spherical xLi2MnO3·(1−x)Li(Mn0.33Co0.33Ni0.33)O2 as cathode materials for lithium-ion batteries with improved electrochemical performance

High capacity Li1.2Mn0.54Ni0.13Co0.13O2 cathode materials synthesized using mesocrystal precursors for lithium-ion batteries

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