US 12,148,947 B2
Degassing apparatus of pouch for secondary battery and degassing method using the same
Jae Gyu Byun, Daejeon (KR); Dong Ju Kim, Daejeon (KR); Jin Go Kim, Daejeon (KR); Seung Noh Lee, Daejeon (KR); Taek Eon Jeong, Daejeon (KR); Deok Kun Kim, Chungcheongbuk-do (KR); and Kang Min Lee, Chungcheongbuk-do (KR)
Assigned to SK ON CO., LTD., Seoul (KR); and RS AUTO CO., LTD., Chungcheongbuk-do (KR)
Filed by SK Innovation Co., Ltd., Seoul (KR); and RS AUTO Co., Ltd., Chungcheongbuk-do (KR)
Filed on May 21, 2021, as Appl. No. 17/327,051.
Claims priority of application No. 10-2020-0061480 (KR), filed on May 22, 2020.
Prior Publication US 2021/0367306 A1, Nov. 25, 2021
Int. Cl. H01M 50/308 (2021.01); H01M 10/0525 (2010.01); H01M 50/105 (2021.01)
CPC H01M 50/308 (2021.01) [H01M 10/0525 (2013.01); H01M 50/105 (2021.01)] 8 Claims
OG exemplary drawing
 
1. A degassing apparatus of a pouch for a secondary battery, for removing gas from a pouch for a secondary battery with a sealed edge, the degassing apparatus comprising:
a separation unit including an adsorption plate adsorbing at least one surface of the pouch, and forming a space inside of the pouch by pulling the adsorption plate; and
a gas removal unit installed on the adsorption plate, piercing the pouch with a needle having a gas discharge path therein, and removing gas from the pouch through the gas discharge path, and
wherein the separation unit comprises a degassing adsorption plate adsorbed to the pouch inside of the adsorption plate, and including a guide hole through which the needle is drawn in and out, and
wherein a space between the inside of the adsorption plate, an outside of the degassing adsorption plate and the pouch has a watertight structure to form a vacuum state.