Highly [001]-oriented N-doped orthorhombic Nb2O5 microflowers with intercalation pseudocapacitance for lithium-ion storage

N-doped T-Nb 2 O 5 microflowers (N-Nb 2 O 5 ) assembled by [001]-oriented nanoflakes are prepared. The special structure of N-Nb 2 O 5 endows them with improved electronic conductivity and pseudocapacitive behavior, leading to superior Li + storage properties.