US 12,136,709 B2
System for and method of manufacturing lithium ion secondary battery
Young Woo Lee, Suwon-si (KR); Yoon Ji Lee, Bucheon-si (KR); Hae Won Park, Anyang-si (KR); Sung Hoon Lim, Yongin-si (KR); Seung Ho Ahn, Hanam-si (KR); and Sang Jin Park, Bucheon-si (KR)
Assigned to HYUNDAI MOTOR COMPANY, Seoul (KR); and KIA MOTORS CORPORATION, Seoul (KR)
Filed by HYUNDAI MOTOR COMPANY, Seoul (KR); and KIA MOTORS CORPORATION, Seoul (KR)
Filed on Jun. 23, 2020, as Appl. No. 16/909,349.
Claims priority of application No. 10-2019-0156297 (KR), filed on Nov. 29, 2019.
Prior Publication US 2021/0167431 A1, Jun. 3, 2021
Int. Cl. H01M 10/44 (2006.01); H01M 10/0525 (2010.01)
CPC H01M 10/443 (2013.01) [H01M 10/0525 (2013.01); H01M 10/445 (2013.01)] 6 Claims
OG exemplary drawing
 
1. A lithium ion secondary battery manufacturing system comprising:
a single chamber comprising:
lithium ion secondary battery;
a charging/discharging device configured to electrically charge and discharge the lithium ion secondary battery;
a pressure plate configured to press the lithium ion secondary battery when the lithium ion secondary battery is electrically charged;
a pointed portion configured to bore a hole in a pouch of the lithium ion secondary battery to allow gas generated during the electrical charging of the lithium ion secondary battery to be removed from the pouch when the lithium ion secondary battery is pressed by the pressure plate;
a sealer configured to seal the pouch of the lithium ion secondary battery by closing the hole after the gas is removed;
a temperature control device configured to control an internal temperature of the chamber; and
multiple drive devices configured to drive the pressure plate, the pointed portion, and the sealer;
wherein when the lithium ion secondary battery is electrically charged by the charging/discharging device, the controller operates the pressure plate to press the lithium ion secondary battery, operates the temperature control device to raise or lower the internal temperature of the chamber, and operates the pointed portion to bore the hole in the pouch of the lithium ion secondary battery to enable the gas to be removed from the pouch in real time.