Hybrid Perovskite-like Iodobismuthates as Low-cost and Stable Anode Materials for Lithium-ion Battery Applications

We report the electrochemical applications of hybrid iodobismuthates [C3H5N2]3[Bi2I9] (IMB), [C2H4N3S][BiI4] (ADB) and [C3H5N2S][BiI4] (ATB), as a new type of environmentally-friendly anode for lithium-ion batteries. The materials show impressive Li-storage capacities along with very good rate capabilities and stability. The excellent properties of ATB, ADB and IMB indicate that further development and optimisation of this new family may be possible by further cation tuning within the series.