An electric vehicle of the present invention includes a footrest, an extension part which comprises a housing frame extending from the footrest, and a steering tube rotatably coupled to the housing frame, a handlebar coupled to the steering tube to control...

There is provided a charging management apparatus (10). The charging management apparatus (10) comprises: a charging station (100) including a plurality of charging docks (120) capable of loading a plurality of charging objects (20); a power supply configu...

Provided is a cathode active material for a lithium secondary battery containing the compound of Formula 1 doped or coated with phosphate fluoride, prepared by adding phosphate fluoride to the precursor compound and subjecting to sintering and heat-treatme...

Ionic gel polymer electrolytes for rechargeable polymer batteries. In preferred forms, a gel polymer precursor electrolyte is formed by dissolving a gelling agent into organic liquid electrolytes, and then gelling the precursor in situ at elevated temperat...