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Mn(V); Lithium KU-60019 batteries; Freeze drying; Electrode materials; Microstructure
Li-ion rechargeable batteries are becoming more and more present in people’s lives since they are one of the most commercialized power sources for portable applications.
The structural, morphological and electrochemical properties of the new FD Li3MnO4 material are compared to products from the standard solid state reaction.
2. Experimental section
2.1.1. SSR-Li3MnO4 (solid state route)
SSR-Li3MnO4 was prepared by a solid state route, typically used to synthesize this material . A ground mixture of LiMnO4⋅3H2O and LiOH⋅H2O (Alfa Aesar, 98% min) in a 1:2 ratio was introduced into a furnace under oxygen flow. The sample was heated at 1 K/min from RT to 343 K. At this temperature the sample was re-ground and heated by steps of 10 K until 398 K. After 1 h at 398 K the heating was continued at 1 K/min to 443 K and then heated for 3 h. The LiMnO4⋅3H2O precursor was prepared by ion exchange from KMnO4 as described elsewhere .