A secondary battery including: at least one first metal plate serving as a positive terminal; at least one second metal plate serving as a negative terminal; a separator material disposed between the at least one first metal plate and the at least one second metal plate for separating a positive terminal material on the at least one first metal plate and a negative terminal material on the at least one second metal plate; a liquid electrolyte; and an integrated circuit for controlling a wireless communication of RFID, WIFI, NFC, Blue-tooth, or SRI, where, the at least one first metal plate and/or the at least one second metal plate has formed thereon a coil pattern so that an energy transfer can take place between the positive terminal and the negative terminal, and the integrated circuit controls the energy transfer.