Rechargeable battery and method for manufacturing the same

摘要

The invention relates to a rechargeable battery (101) and to a method for manufacturing the same. In order to improve efficiency of charging and discharging of the rechargeable battery (101), the invention provides that an internal pressure of a case (21) of the rechargeable battery (101) is lower than ambient pressure and that a negative relative pressure is formed in the case (21) when manufacturing the battery (101).