Laminate for secondary battery and secondary battery, and methods of producing same

A method of producing a laminate for a secondary battery that includes:

• a negative electrode;
• a first separator affixed to one surface of the negative electrode;
• a positive electrode affixed to a surface of the first separator at an opposite side of the first separator to the negative electrode;
• and a second separator affixed to another surface of the negative electrode or to a surface of the positive electrode at an opposite side of the positive electrode to the first separator, and in which the positive electrode has a smaller size in plan view than the negative electrode, the first separator, and the second separator, the method of producing a laminate for a secondary battery comprising:
• a step (A) of producing an affixed body that includes a negative electrode material formed of an elongated negative electrode web or a negative electrode, an elongated first separator web affixed to one surface of the negative electrode material, and an elongated second separator web affixed to another surface of the negative electrode material or an affixed body that includes a negative electrode material formed of an elongated negative electrode web, an elongated first separator web, a positive electrode, and an elongated second separator web affixed in stated order;
• and
• a step (B) of cutting the affixed body, wherein
• the step (A) includes a step (a1) of applying an adhesive material at an affixing surface of the negative electrode material and a separator web that is to be affixed to the negative electrode material,
• the adhesive material is applied in the step (a1) such that a first coated section including a region where the adhesive material is applied with a coating weight M1 and a second coated section including a region where the adhesive material is applied with a coating weight M2 that is at least 0.02 g/m2 more than the coating weight M1 are located alternately in a longitudinal direction of the affixed body,
• the affixed body is cut within a range where the second coated section is located in the step (B), and
• in an obtained laminate for a secondary battery, the positive electrode is located at a position opposite the first coated section.