CPC H01M 50/358 (2021.01) [H01M 10/0404 (2013.01); H01M 50/105 (2021.01); H01M 50/60 (2021.01); H01M 50/673 (2021.01); H01M 50/691 (2021.01); H01M 4/0447 (2013.01)] | 9 Claims |
1. A degassing system of a pouch for a secondary battery, for removing gas from the pouch with a sealed edge, the degassing system comprising:
a separation unit including an adsorption plate for adsorbing at least one surface of the pouch, and a degassing adsorption plate being disposed inside the adsorption plate and adsorbing the pouch inside of the adsorption plate, the degassing adsorption plate including a guide hole through which a needle is configured to be drawn in and out, the separation unit forming a space inside the pouch by pulling the adsorption plate through suction operation of a suction passage;
a gas discharge unit discharging gas inside the pouch through a gas discharge path formed in the needle when the needle pierces the pouch; and
a foreign substance removing unit suctioning a discharge mixed with gas respectively flowing into the suction passage and the gas discharge path, the adsorption plate and the degassing adsorption plate providing adsorption force required for pouch adsorption.
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