Patent ID: 10673028

Abstract:
[Problem] The present invention provides an electrochemical element having an electrode body covered with a laminate-film jacket; the electrochemical element is structured to prevent damage and short-circuiting of a positive electrode lead while making it possible to prevent decreased sealing ability of the laminate-film jacket.[Solution] A laminate-type cell 1 includes: an electrode body 10; a positive terminal 41; a laminate-film jacket 20; a positive electrode sealing material 45 located between the positive terminal 41 and the laminate-film jacket 20; and an insulating material 55. The positive terminal 41 and the positive electrode sealing material 45 include a plurality of bending portions 51a, 51b inside the laminate-film jacket 20. The insulating material 55 coats a part of the positive electrode sealing material 45 near the electrode body 10. The positive electrode sealing material 45 includes a positive-electrode insulated portion 51c coated with the insulating material 55 and a positive-electrode welded portion 51d pinched by the laminate-film jacket 20.