Method for producing and apparatus for producing secondary battery

A method for producing a secondary battery, comprising:

• an electrode plate placing step of placing a predetermined number of positive electrode plates or negative electrode plates on a positive electrode plate or negative electrode plate cassette member;
• an electrode plate supply step of batchwise supplying the predetermined number of positive electrode plates or negative electrode plates placed on the positive electrode plate or negative electrode plate cassette member to an electrode plate conveying member for positive electrode plates or negative electrode plates;
• a zigzag folding step of pushing a separator by a plurality of guide members to fold the separator zigzag;
• a multilayer body formation step of inserting the positive electrode plates placed on the electrode plate conveying member for positive electrode plates and the negative electrode plates placed on the electrode plate conveying member for negative electrode plates into respective furrows of the zigzag-folded separator to form a multilayer body having the positive electrode plates and the negative electrode plates superposed alternately via the separator;
• a withdrawal step of withdrawing the guide members from inside the respective furrows of the separator;
• and
• a pressing step of pressing the multilayer body in a direction in which the positive electrode plates and the negative electrode plates are stacked.

A method for producing a secondary battery, comprising:

• an electrode plate placing step of placing a predetermined number of positive electrode plates on a positive electrode plate cassette member;
• an electrode plate supply step of batchwise supplying the predetermined number of positive electrode plates placed on the positive electrode plate cassette member to an electrode plate conveying member for positive electrode plates;
• a zigzag folding step of pushing a superposed body, which has a negative electrode plate sandwiched between two separators, by a plurality of guide members to fold the superposed body zigzag;
• a multilayer body formation step of inserting the positive electrode plates placed on the electrode plate conveying member for positive electrode plates into respective furrows of the zigzag-folded superposed body to form a multilayer body having the positive electrode plates and the negative electrode plate superposed alternately via the separators;
• a withdrawal step of withdrawing the guide members from inside the respective furrows of the superposed body;
• and
• a pressing step of pressing the multilayer body in a direction in which the positive electrode plates and the negative electrode plate are stacked.

An apparatus for producing a secondary battery, comprising:

• zigzag folding means which has a plurality of guide members arranged zigzag in a vertical direction and which, when a separator is disposed between one row and another row of the guide members, crosses the guide members in a horizontal direction between the rows to fold the separator zigzag;
• electrode plate insertion means which has an electrode plate conveying member for positive electrode plates or negative electrode plates for placing thereon a predetermined number of the positive electrode plates or the negative electrode plates, and which moves the electrode plate conveying member for positive electrode plates or negative electrode plates into respective furrows of the separator to insert the positive electrode plates and the negative electrode plates into the respective furrows;
• and
• pressing means for pressing a multilayer body, composed of the positive electrode plates and the negative electrode plates superposed alternately via the separator, in a direction in which the electrode plates are stacked, and
• further comprising supply means which has a positive electrode plate or negative electrode plate cassette member for placing thereon a predetermined number of the positive electrode plates or the negative electrode plates, and which batchwise supplies a plurality of the positive electrode plates or the negative electrode plates placed on the positive electrode plate or negative electrode plate cassette member to the electrode plate conveying member for positive electrode plates or negative electrode plates.

An apparatus for producing a secondary battery, comprising:

• zigzag folding means which has a plurality of guide members arranged zigzag in a vertical direction and which, when a superposed body having a negative electrode plate sandwiched between two separators is disposed between one row and another row of the guide members, crosses the guide members in a horizontal direction between the rows to fold the superposed body zigzag;
• electrode plate insertion means which has an electrode plate conveying member for positive electrode plates for placing thereon a predetermined number of the positive electrode plates, and which moves the electrode plate conveying member for positive electrode plates into respective furrows of the superposed body to insert the positive electrode plates into the respective furrows;
• and
• pressing means for pressing a multilayer body, composed of the positive electrode plates and the negative electrode plate superposed alternately via the separators, in a direction in which the electrode plates are stacked, and
• further comprising supply means which has a positive electrode plate cassette member for placing thereon a predetermined number of the positive electrode plates, and which batchwise supplies the predetermined number of the positive electrode plates, placed on the positive electrode plate cassette member, to the electrode plate conveying member for positive electrode plates.