This
design provides a scalable route for <i>in situ</i> synthesizing
of special carbon nanoscrolls as the cathode for an
aluminum battery. The frizzy architectures are generated by a few
graphene layers convoluting into the hollow carbon scroll, possessing
rapid electronic transportation channels, superior anion storage capability,
and outstanding ability of accommodating a large volume expansion
during the cycling process. The electrochemical performance of the
carbon nanoscroll cathode is fully tapped, displaying an excellent
reversible discharge capacity of 104 mAh g<sup>–1</sup> at
1000 mA g<sup>–1</sup>. After 55 000 cycles, this cathode
retains a superior reversible specific capacity of 101.24 mAh g<sup>–1</sup> at an ultrafast rate of 50 000 mA g<sup>–1</sup>, around 100% of the initial capacity, which demonstrates a superior
electrochemical performance. In addition, anionic storage capability
and structural stability are discussed in detail. The battery capacity
under a wide temperature range from −80 to 120 °C is examined.
At a low temperature of −25 °C, the battery delivers a
discharge capacity of 62.83 mAh g<sup>–1</sup> after 10 000
cycles, obtaining a capacity retention near 100%. In addition, it
achieves a capacity of 99.5 mAh g<sup>–1</sup> after 4000 cycles
at a high temperature of 80 °C, with a capacity retention close
to 100%. The carbon nanoscrolls possess an outstanding ultrafast charging/variable
discharging rate performance surpassing all the batteries previously
reported, which are highly promising for being applied in energy storage
fields