Mesoporous Crystalline β-MnO2—a Reversible Positive Electrode for Rechargeable Lithium Batteries


  • P.G.B. is indebted to the Royal Society, EPSRC, and the EU for financial support. Supporting Information is available online from Wiley InterScience or from the author.


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Mesoporous β-MnO2 (rutile structure) with a highly ordered pore structure (see figure) and highly crystalline walls is capable of reversibly accommodating lithium, up to a composition of Li0.92MnO2 (equivalent to a charge storage of 284 mA h g–1). Remarkably, the crystal structure and the ordered mesostructure are preserved after many cycles (Li intercalation/deintercalation).