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A hierarchically nanospherical α-Fe2O3/graphene composite with a homogeneous mono-pore size of 4 nm has been prepared using a hydrothermal method. The composite showed an extremely high rate performance and good cycling stability when applied as an anode material for lithium-ion batteries owing to its unique three dimensional architecture. A specific capacity of 110 mAh/g was obtained at an extremely...
The safety of lithium-ion battery is closely related to the anti-shrink and heatproof stability of the separator. In this paper, electrospun nylon66 (PA66) nanofiber-based membrane is used as lithium-ion battery separator, showing good thermodynamics properties via thermogravimetric analysis (TG), thermal shrinkage experiment, and tension test. Furthermore, electrospun nylon66 separator based battery...
Separator plays an important role in the safety performance of lithium-ion battery since many accidents have been caused by internal shorting of battery due to the failure of the separators. Herein, thermal stable and flexible glass fiber fabric was reported to be a promising candidate for separators with high safety. The thermal stability, mechanical, and electrochemical performance of the glass...
Sn and SnO2-graphene composites were synthesized using hydrothermal process, followed by annealing in Ar/H2 atmosphere, and characterized using x-ray diffraction, scanning electron microscopy, and transition electron microscopy. The results indicated that the polycrystalline metallic Sn forms nanospheres with a diameter of 100 ∼ 300 nm, while the SnO2 nanoparticles are much smaller with a size below...
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