Investigating the Perovskite AgLaNbO as a High-Rate Negative Electrode for Li-Ion Batteries.

The broader development of the electric car for tomorrow's mobility requires the emergence of new fast-charging negative electrode materials to replace graphite in Li-ion batteries. In this area, the design of new compounds using innovative approaches could be the key to discovering new negative electrode materials that allow for faster charging and discharging processes. Here, we present a partially substituted AgNbO perovskite material by introducing lanthanum in the A-site.

Investigating the Cycling Stability of FeWO Pseudocapacitive Electrode Materials.

The stability upon cycling of FeWO used as a negative electrode material for electrochemical capacitors was investigated. The material was synthesized using low temperature conditions for the first time (220 °C). The electrochemical study of FeWO in a 5 M LiNO aqueous electrolyte led to a specific and volumetric capacitance of 38 F g and 240 F cm when cycled at 2 mV·s, respectively, associated with a minor capacitance loss after 10,000 cycles.