| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a method of efficiently inserting a power generation element into a battery can while vibrating the battery can.SOLUTION: When a power generation element 40 is inserted into a battery can 1, a vibration of a frequency in an audible frequency range including an eigen frequency of the battery can 1 is provided to the battery can 1. The power generation element 40 is inserted into the battery can 1 while vibrating the battery can 1.</p> |
