Manganese-based materials are considered
to be the most applied
valuable candidate anodes as a result of the high capacity, wide resources,
low price, and environmentally friendly characteristics. However,
the low conductivity and great volume expansion during the cycling
restrict its further improvement of the electrochemical performance.
Herein, a conductive connection-structured MnO
x
@C hybrid with a high content of MnO
x
(∼90 wt %) and developed mesopores is designed and
fabricated via a Zn2MnO4-induced zeolite imidazole
framework-8 in situ growth strategy. The obtained
MnO
x
@C hybrid delivers an ultrahigh specific
capacity of 2215 mAh g–1 at 0.2 A g–1 after 300 cycles with an initial coulombic efficiency of 77% and
1052 mAh g–1 at 1 A g–1 after
500 cycles. After 1100 cycles, the capacity retention is close to
108% at 2 A g–1, indicating a superb Li storage
performance with enhanced cycling and rate capability. Furthermore,
this solvent-free method is easy to realize industrial synthesis and
is expected to be applied to other high-performance electrodes.