Abstract

AbstractOne‐dimensional manganese oxide nanobelt bundles with birnessite‐type structure have been synthesized by a hydrothermal process in a NaOH solution employing K‐type layered manganese oxide as a precursor. The obtained manganese oxide nanobelt bundles exhibit excellent discharge properties and cycle stability. The initial capacity is 376 mAh·g−1 and the reversible capacity of 243 mAh·g−1 is maintained after the 50th cycle at a current density of 20 mA·g−1. Meanwhile, the manganese oxide nanobelt bundles show an excellent cycle performance even if at relative high current density.

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