A high energy-density Sn anode capable of displaying superior operating voltages and capacity, for rechargeable Mg-ion batteries, is highlighted. The intended application and performance of the anode is confirmed by coupling it with a Mo(6)S(8) cathode in a conventional battery electrolyte.

No abstract

The interface between Mg metal and electrolyte is a key factor affecting Mg battery performance. Switchable interfacial phenomena, involving apparent surface electrochemical inhibition under open-circuit voltage and reactivation upon electrochemical polarization, were investigated with various Mg electrolyte systems, under both electrochemically static and dynamic conditions. Most notably, it was found that such behavior appears to be unique for the Mg system, implying that correct control of the interface is of considerable practical concern in Mg batteries. This new challenge must be addressed in order to achieve high-energy and high-durability rechargeable Mg batteries.

No abstract

Cycling stability at high capacities and water-tolerance are two key properties for the operation of high-capacity lithium (Li) metal–air batteries.