METHOD FOR MANUFACTURING SECONDARY BATTERY

• Main Authors: URAGAMI TAICHI, ISHIZU SEIJI, ICHINO YU, MORIYA SHUNPEI, ISHIZUKA NAOHIRO, HIRAHARA YUKI, MORI SHINGO, SAITO KO, UMEHARA MASAKAZU, KISHIMOTO NAOYA
• Format: Patent
• Language: Chinese; English
• Published: 23.06.2023
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRICITY; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY

The present invention provides a method for manufacturing a secondary battery capable of stabilizing the application width of a mixture paste applied to an electrode base material. The manufacturing method comprises a simultaneous coating step of coating one positive electrode mixture paste and two insulating pastes on a positive electrode base material in such a manner that one insulating paste is adjacent to each end of one positive electrode mixture paste in the width direction by using a discharge part capable of discharging the positive electrode mixture paste and the insulating pastes onto the positive electrode base material, and coating the positive electrode base material with one positive electrode mixture paste and two insulating pastes in such a manner that one insulating paste is adjacent to each end of the positive electrode mixture paste in the width direction. The simultaneous coating step includes a gap adjustment step in which the distance between the ejection unit and the positive electrode