The synergistic integration of compositional and structural advantages for anode material provides a feasible avenue toward high-performance lithium-ion batteries (LIBs). Here, a tailored Co/N-doped yolk-shell porous carbon skeleton is fabricated by graphitic carbon nanochambers and amorphous carbon to effectively enhance the electrochemical performances of LIBs. Benefitting from the exquisite composition and structure, the designed anode material delivers a desirable discharge capacity of 440.3 mA h g~(-1) after 2500 cycles at a current density of 4 A g~(-1) with the Coulombic efficiency of 99.5%. The assembled lithium full battery with LiFePO_4 cathode achieves 288 Wh kg~(-1) after 200 cycles. The present strategy expands the direction of advanced material preparations for long-lifespan battery applications.
Key laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Renewable Energy Conversion and Storage Center, College of Chemistry, Nankai University, Tianjin 300071, P. R. China
NSTL
Elsevier
