Method for drying electrode pair, method for manufacturing lithium-ion secondary battery, method for manufacturing electric double-layer capacitor, and method for manufacturing lithium-ion capacitor

A method for drying an electrode pair, comprising the steps of:

• preparing a positive electrode by applying a positive electrode material to a current collector;
• preparing a negative electrode by applying a negative electrode material to a current collector;
• preparing one set of an electrode pair made up of a positive electrode, a separator, and a negative electrode which are laminated in this order or preparing sets of electrode pairs, the sets being laminated, a separator being provided between the respective sets, each of the electrode pairs being made up of a positive electrode, a separator, and a negative electrode which are laminated in this order;
• accommodating the electrode pair(s) in a container, and
• at least one of (i) drying at least one of the positive electrode(s) and the negative electrode(s) by use of a freeze-drying method and (ii) drying the container in which the electrode pair(s) has been accommodated by use of the freeze-drying method,
• wherein a drying temperature of the freeze-drying method is not lower than 5° C. and not higher than 50° C.