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In this work, we developed a polyaniline (PANI)-coated selenium/carbon nanocomposite encapsulated in graphene sheets (PANI@Se/C-G), with excellent performance in Li-Se batteries. The PANI@Se/C-G nanostructure presents attractive properties as cathode of Li-Se batteries, with a high specific capacity of 588.7 mAh·g–1 at a 0.2C (1C = 675 mA·g−1) rate after 200 cycles. Even at a high rate of 2C, a high...
Graphene-encapsulated α-Fe 2 O 3 nanorice (GE-FN) has been facilely fabricated via a solution-mixing method at room temperature. The Fe 2 O 3 nanorice with an average of ∼350nm was uniformly wrapped in the graphene sheets. As an anode material for rechargeable lithium batteries, this GE-FN composite exhibits enhanced cyclability and rate performance compared with free...
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