Graphene oxide linked with N, N′-diamino-1,4,5,8-naphthalenetetracarboxylic bisimide as a stable cathode material for lithium-ion batteries

摘要: Organic carbonyl compounds are regarded as a promising cathode for green, flexible, and sustainable energy storage systems. Currently, developing an effective route overcoming the dissolution problem of organic remains challenge. Herein, DNTCB-functionalized graphene oxide (DNTCB-GO) nanosheets were prepared by using covalent bonding between DNTCB GO (DNTCB = N,N′-diamino-1,4,5,8-naphthalenetetracarboxylic bisimide, grapheme oxide). Within voltage window 1.5–4.5 V, as-obtained DNTCB-GO displays excellent cyclic stability, better rate capability, higher specific capacity material lithium-ion batteries, remaining 132 mA h g−1 at 50 mA g−1 after 50 cycles. Our work shows that linking polycarbonyl compound is method to obtain materials batteries with high-performance.