RT Journal Article
T1 δ-MnO2 nanofibers: a promising cathode material for new aluminum-ion batteries
A1 Almodóvar Losada, Paloma
A1 Giraldo, David
A1 Chacón, Joaquín
A1 Álvarez Serrano, Inmaculada
A1 López García, María Luisa
AB δ-MnO2 nanofibers, synthesized by using a simple, low-cost sol-gel method, showed high electrochemical performance as a cathode for rechargeable Al-ion batteries (AIBs). δ-MnO2 presented an initial discharge capacity of 59 mA h g−1 and stabilized at 37 mA h g−1 at a current rate of 100 mA g−1 after 15 cycles and for more than 100 cycles with almost a 99 % coulombic efficiency. Different plateaus in charge/discharge curves, consistent with CV peaks, revealed the Al-ion insertion/deinsertion and the electrochemical stability of the battery. Moreover, different rate CV measurements revealed the pseudocapacitive behavior of δ-MnO2 in AIBs. The obtained charge/discharge capacities are ten times higher than previous studies performed with this material. Ex situ Raman and high-resolution TEM measurements in different charge/discharge states revealed structural information of δ-MnO2 upon Al-ion intercalation/deintercalation.
PB Wiley VCH
YR 2020
FD 2020-04-15
LK https://hdl.handle.net/20.500.14352/113400
UL https://hdl.handle.net/20.500.14352/113400
LA eng
NO P. Almodóvar, D. A. Giraldo, J. Chancón, I. Álvarez-Serrano, M. L. López, ChemElectroChem 2020, 7, 2102.
NO Imerys Graphite & Carbon
NO Ministerio de Economía, Comercio y Empresa
NO Universidad Complutense de Madrid
DS Docta Complutense
RD 21 dic 2025