The present invention provides an electricity storing/discharging device having multiple input/output electric conductive interface covered by electrode plate pair with multiple-sided electric conductive terminals with a single layer means, which is applied in a specific multiple-sided package structure having electrode plate pair with multiple-sided electric conductive terminals and a multiple-directional input/output electric conductive interfaces, so the electrode plate pair is able to be installed on at least one multiple-sided electric conductive terminal and/or at least one side for forming an electric conductive interface so as to transfer electric energy to the exterior.