A nitrogen-rich graphdiyne containing hexaazatrinaphthylene for high-performance lithium-ion batteries.

A nitrogen-rich graphdiyne (HATN-GDY) material containing electrochemical active hexaazatrinaphthylene units was successfully prepared. HATN-GDY exhibits a superior specific capacity of 2139 mA h g -1 and firm long-term stability due to the unique 2D π-conjugated structure and the large in-plane N-cavities.