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 pi-conjugated structure and the large in-plane N-cavities. An hexaazatrinaphthylene-based graphdiyne with a fully pi-conjugated 2D network was successfully prepared and exhibited superior performance in lithium-ion batteries.