Secondary battery and manufacturing method thereof
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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N/A
Issued Date -
Apr 23, 2009
app pub date -
Oct 14, 2008
filing date -
Oct 19, 2007
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
In a secondary battery, a positive metal foil having a laminated portion in which parts of the metal foil are laminated in close contact with each other, and a positive electrode current collector terminal member has a contact portion placed in close contact with at least one side of the positive foil laminated portion in a lamination direction thereof The secondary battery is manufactured by welding the parts of the positive metal foil to each other and the positive foil laminated portion and the contact portion to each other by irradiation of an energy beam emitted to travel in the lamination direction while an irradiation site is moved.
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