Perovskite lead-based oxide anodes for rechargeable batteries

• Lead-based perovskites (PbTiO 3 , PbZrO ) are shown as anodes for secondary batteries. Charge storage in occurs by irreversible conversion (Pb II to Pb 0 followed reversible (de)alloying reaction. TEM confirms the reversibility of reaction with alkali (Li,Na). PbTiO delivers capacity ~300 mAh/g low voltage (~0.5 V) operation both Li-ion and Na-ion introduced novel anode materials non-aqueous M-ion rechargeable batteries (M = Li, Na, K). These compounds were scalably prepared conventional solid-state (dry) combustion (wet) routes. these involves a standard → Li-Pb/Na-Pb/K-Pb The oxide matrix 2 O, TiO etc.) phase is crucial alloying reaction, pristine PbO fails fast. conversion-alloying mechanism has been verified ex situ electron microscopy (TEM) study. delivered 410 first charge vs. Li/Li + Na/Na while around 180 was observed K/K . Particularly, forms robust sodium-ion maximum extracted under (below 0.8 V 275 mAh/g). Similar electrochemical activity also noticed other like that Pb-based (simple mixed) can form potential class battery materials.