Pillar device for table top folding of secondary battery unit

• Main Authors: JUNG JONG-HONG, KIM SANG JIN
• Format: Patent
• Language: Chinese; English
• Published: 22.11.2022
• Subjects: AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; BASIC ELECTRIC ELEMENTS; ELECTRICITY; INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULARARTICLES; MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL; PERFORMING OPERATIONS; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY; PUNCHING METAL; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; TRANSPORTING; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL; WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS ORPROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL

Disclosed is a pillar device for mesa folding of a secondary battery cell, the pillar device supporting a mesa portion of the secondary battery cell in a direction opposite to a folding direction, the secondary battery cell including an electrode stacking portion in which electrodes are stacked, and a mesa portion in which the electrodes are stacked, and a mesa portion formed along an outer periphery of the electrode stack portion and a portion of which is folded in a folding direction to face the electrode stack portion, the pillar device including an upper pillar and a lower pillar having the electrode stack portion at a rear portion thereof in the folding direction, and a holding portion having a long length from one end to the other end of the secondary battery cell in a direction orthogonal to the folding direction, and facing each other at upper and lower sides of the mesa portion to hold the mesa portion, the upper and lower pillars are formed such that their thickness allowing the mesa portion to be h