Ti0.95Nb0.95O4/C composites with pseudocapacitive behavior for high-performance lithium-ion batteries.

• Rutile Ti 0.95 Nb 0.95 O 4 /C composites were successfully prepared. • Ti 0.95 Nb 0.95 O 4 /C composites show superior performance as anode materials for LIBs. • Pseudocapacitance make a significant contribution to the total capacity. In this work, Ti 0.95 Nb 0.95 O 4 /C composites were developed through solvothermal method combined with subsequent calcination, and used as anode materials for lithium-ion batteries. Ti 0.95 Nb 0.95 O 4 /C composites from calcination at 900 ℃ deliver high reversible capacity of 585 mAh·g−1 at 0.1 A·g−1, superior rate capabilities of 263 and 232 mAh·g−1 at 3 and 4 A·g−1, respectively, and excellent cycling capability of 536 mAh·g−1 at 1.0 A·g−1 after 500 cycles. Furthermore, the results of cyclic voltammetry reveal that the pseudocapacitance makes a significant contribution to the total capacity. These results indicate Ti 0.95 Nb 0.95 O 4 /C composites are one of the most promising anode materials for lithium-ion batteries. [ABSTRACT FROM AUTHOR]