Patent ID: 8398726

Claim:
A method for manufacturing a battery pack, the method comprising: assembling a battery pack core by disposing an insulating cover on a battery which includes a safety valve, wherein the insulating cover is disposed on a surface of the battery and covers an exhaust outlet of the safety valve; temporarily holding the battery pack core in a mold that forms a molded resin region; closing a cavity of the mold that holds the battery pack core; injecting synthetic resin into the closed cavity of the mold; and ejecting the molded battery pack from the cavity of the mold to configure the battery pack with the battery pack core inserted in the molded resin region, wherein in the resin injection step, a securing pin of the mold is disposed inside the cavity, the securing pin protruding towards the insulating cover from an inner surface of the cavity, the inner surface of the cavity facing the surface of the battery, a projection of the insulating cover is protruded towards the inner surface of the cavity of the mold, the securing pin in the mold presses the insulating cover via the projection of the insulating cover in a direction putting the insulating cover in contact with the surface of the battery covering the exhaust outlet of the safety valve, and the synthetic resin is injected into the cavity of the mold in a pressed configuration.