Amorphous solid

Catalysis

Composite number

Engineering

Lithium (medication)

SPHERES

Mesoporous material

Materials science

Endocrinology

Archaeology

Computer science

Carbon fibers

Chemical engineering

Physical chemistry

Physics

Nanotechnology

Organic chemistry

Astronomy

Macro

Composite material

Medicine

Chemistry

Programming language

Cycling

Electrode

Nanostructure

Anode

Amorphous carbon

History

Journal of Power Sources

In this work, nanostructured macro-mesoporous hollow carbon spheres (MMHCSs) with high surface areas (396 m2 g−1) were synthesized as anode materials via a facile template-based method. A macroporous structure was created on the surfaces of the mesoporous hollow carbon spheres without destroying their spherical structure by etching in 20% HF. The unique nanostructure (imperfect hollow spheres) and the beneficial characteristics of amorphous carbon gave the MMHCSs a high reversible capacity of 530 mAh g−1 at 2.5 A g−1 over 1000 cycles. Remarkably, the MMHCSs retained an excellent rate capability of 180 mAh g−1 at 60 A g−1, which was superior to that of perfectly structured mesoporous hollow carbon spheres (without macropore (MHCSs)).

Macro-mesoporous hollow carbon spheres as anodes for lithium-ion batteries with high rate capability and excellent cycling performance