3D-skeleton-carbon coated Na3V2(PO4)3 is synthesized by low-cost template method.
3D-skeleton-carbon and nanosizing greatly improve the conductivity of Na3V2(PO4)3.
Na3V2(PO4)3/C shows great electrochemical performance for sodium ion batteries.
Agarose gel modulates nano-materials growth and provides 3D conductive framework.
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