Journal Article cathode materials perovskite chlorides rechargeable magnesium batteries solid electrolytes structural stability Research Support, Non-U.S. Gov't Review anion conductors anion modulation aqueous manganese-metal hydride batteries chloride ion batteries chloride ion conductor composites copper current collectors copper selenide copper sulfide deposition-dissolution reactions electrochemical stability freeze casting graphene hydrogen storage alloys ice templating interlayer expansion iron disulfide magnesium batteries magnesium-ion storage manganese dioxide non-corrosive electrolyte porous materials