Sk on Co., Ltd.

Rs Auto Co., Ltd.

Jae Gyu Byun

Dong Ju Kim

Taek Eon Jeong

Seung Hoon Ju

Jin Go Kim

Jae Sik Shin

Gi Jeong Seo

Seung Noh Lee

Sun Min Park

Kang Min Lee

Sang Mo Kim

Ji Yong Park

Deok Kun Kim

Eun Soo Cho

A battery cell includes: an electrode assembly; a battery case accommodating the electrode assembly and an electrolyte; and a gas discharging portion disposed between the electrode assembly and the battery case, and opening and closing a flow path based on pressure within the battery case, wherein the gas discharging portion includes: a moving member being moved in the flow path; a plurality of elastic members each elastically supporting the moving member; and a plurality of support members each disposed between the moving member and the elastic member, and in point contact with the moving member.

Battery cell including gas discharging portion

A battery cell includes an electrode assembly in which a plurality of electrode plates are stacked; a protective assembly disposed on at least one side of the electrode assembly and including an insulating material; and a case having an internal space in which the electrode assembly is accommodated, wherein the protective assembly includes a through-hole configured to allow electrolyte to pass therethrough.

Battery cell

A degassing device of a pouch for a secondary battery and a degassing device using the same are provided. The degassing apparatus includes 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.

Degassing apparatus of pouch for secondary battery and degassing method using the same

A pouch-type secondary battery includes an electrode assembly including a first electrode plate, a separator, and a second electrode plate; and a pouch film in which the electrode assembly is accommodated, wherein the pouch film includes a first side sealing portion from which a negative electrode lead connected to the electrode assembly protrudes, a second side sealing portion from which a positive electrode lead connected to the electrode assembly protrudes, and an upper sealing portion having both end portions connected to the first and second side sealing portions, and the pouch film includes a folded portion disposed on an end of the first side sealing portion and an end of the second side sealing portion, and folded toward a bottom portion of the pouch film, wherein the folded portion is folded in one direction.

Pouch-type secondary battery and method for manufacturing the same

A secondary battery cell includes: a case in which an electrode assembly is accommodated; a cap plate assembly coupled to at least one side of the case; and a venting unit including a base coupled to one surface of the case and a notch portion formed on the base, and the notch portion includes: a first notch portion extending in a first direction; a second notch portion extending in a second direction intersecting the first direction; and a third notch portion extending in a third direction, parallel to a longitudinal direction of the base from both ends of the first notch portion and the second notch portion.

Secondary battery cell

A secondary battery cell includes: a case in which an electrode assembly is accommodated; a cap plate assembly coupled to at least one side of the case; and a venting unit including a base coupled to one surface of the case and a notch portion formed on the base, and the notch portion includes: a first notch portion extending in a first direction, parallel to a longitudinal direction of the base; a second notch portion extending in a second direction, perpendicular to the first direction, from both ends of the first notch portion, respectively; and a third notch portion extending in the first direction from both ends of the second notch portion, respectively.

A degassing system of a pouch for a secondary battery is provided. In the degassing system, after inhaling gas regardless of the size of a cell pocket, the gas may be processed, and the convenience of work may be increased by setting the period of degassing time or the amount of gas to be discharged according to the size of a pouch, and an abnormality in a suction line for degassing may be automatically detected according to a comparison value by comparing the amount of discharged gas with a reference value preset by each pouch size.

Growing community of inventors

Daejeon, South Korea

Jae Gyu Byun