Nano-Graphene Enclosed Multi Nitrogen: Dynamic Hierarchical Self-Assemble Property for Lithium Ion Storage
2020 ◽
Vol 20
(5)
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pp. 2675-2688
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Keyword(s):
N Doping
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Led to significant capacity improvement to 1800 mA/h after 100 cycles for nano-graphene-N4, which is the first report for a carbonaceous materials anode. In addition, the doping level, id est, number of nitrogen atoms, had a significant influence on the molecular self-assembled structures through hierarchical self-assembly. As the nitrogen concentration increased, the d-space between the nanosheets increased from 3.4 to 4.3. The capacity of the nano-graphene increased greatly from 500 mAh/g for nano-graphene without N-doping to 1800 mAh/g for nano-graphene with nanographene-N4, indicating that the capacity is related to the structures, and was defined and the relationship between performance and structure was determined.
Keyword(s):
2015 ◽
Vol 29
(19)
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pp. 1550100
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Keyword(s):
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2020 ◽
Vol 577
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pp. 329-336
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Keyword(s):