Method of manufacturing secondary battery
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United States of America Patent
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Aug 17, 2021
Grant Date -
Mar 16, 2017
app pub date -
Sep 9, 2016
filing date -
Sep 11, 2015
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Abstract
A method of manufacturing a secondary battery is provided. According to the manufacturing method, laser light includes first peak light applied to a first irradiation position located on a cover body, second peak light applied to a second irradiation position located between the first irradiation position and a connecting surface, and third peak light applied to the connecting surface. The first peak light is higher in intensity than the second peak light and the third peak light. The third peak light is higher in intensity than the second peak light.
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