Li 2 TiO 3 /Ni foam composite as high-performance electrode for energy storage and conversion
Li TiO /Ni foam composites were prepared by a solid-state reaction process. They crystallized in the monoclinic Li TiO structure with 2/ space group. SEM images show that the Li TiO particles are monodispersed crystallites of average size 49 nm, infused into porous scaffold Ni foam. As an anode in l...
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Published in | Heliyon Vol. 5; no. 7; p. e02060 |
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Main Authors | , , , , , |
Format | Journal Article |
Language | English |
Published |
England
01.07.2019
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Subjects | |
Online Access | Get full text |
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Summary: | Li
TiO
/Ni foam composites were prepared by a solid-state reaction process. They crystallized in the monoclinic Li
TiO
structure with
2/
space group. SEM images show that the Li
TiO
particles are monodispersed crystallites of average size 49 nm, infused into porous scaffold Ni foam. As an anode in lithium battery, the composite delivered a discharge capacity of 153 mAh g
in an aqueous electrolyte and retained 95% of its initial capacity after 30 cycles. Moreover, the Li
TiO
/Ni foam composite as a negative electrode of pseudo-supercapacitor delivered a specific capacitance of 593 F g
and retained 95% of its initial capacitance after 1000 cycles. The enhanced capacity of Li
TiO
/Ni composite is due to porous scaffold Ni foam, which provides high conductivity to the Li
TiO
particles and high effective surface area for redox reactions. The performance of the Li
TiO
/Ni foam as an electrode material for both lithium-ion batteries (LIBs) and supercapacitors (SCs) shows that this composite is promising for energy storage devices. |
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ISSN: | 2405-8440 2405-8440 |