Fabric-friendly type secondary battery package

A battery package that is attached onto an external member comprising an electronic circuit and a power supply terminals electrically connected to the electronic circuit and that supply power to the electronic circuit or collect power to store energy, the battery package comprising:

• a battery unit comprising one or more secondary battery cells and leads connected to the secondary battery cells;
• a flexible encapsulator for accommodating the battery unit therein;
• and
• first conductive hook-and-loop fastener units that are exposed onto a surface of the flexible encapsulator and are electrically connected to the electronic circuit by being electrically connected to the leads,
• wherein, as the first conductive hook-and-loop fastener units of the battery package are attached to second conductive hook-and-loop fastener units arranged on the external member, the battery package is detachably fixed onto the external member and the first conductive hook-and-loop fastener units of the battery package are connected to the second conductive hook-and-loop fastener units of the external member, thereby completing a power supply circuit for the electronic circuit,
• wherein the first and second hook-and-loop fastener comprise a plurality of hook-and-loop fasteners having a hook-and-loop fastener pattern, respectively, and
• wherein the hook-and-loop fastener pattern comprises at least one of shapes, numbers, sizes, and arrangements of the plurality of hook-and-loop fasteners, and the hook-and-loop fastener pattern is asymmetrical in order to prevent the battery package and the external member from being attached to each other without matching polarities between the exposed electrodes and the power supply terminals due to a user's inadvertent attempt for attachment of the battery package.