SECONDARY BATTERY AND BATTERY PACK INCLUDING THE SAME
개요
발명자
Dae Kyu KIM; Jong Jun PARK; Kwang Soo SEO; Shin Jung KIM
IPC 분류
CPC 분류
A secondary battery includes a case having an opening, an electrode assembly accommodated in the case, a cap-up disposed in the opening, a cap-down disposed to face the cap-up and connected to the electrode assembly, a vent plate disposed between the cap-up and the cap-down, an extension part extending from the vent plate and connected to the cap-up, and a contact part that protrudes from the vent plate toward the cap-down and is in contact with the cap-down, wherein a thickness of at least a portion of the vent plate increases toward a central axis of the case.
원문 (중국어)
A secondary battery includes a case having an opening, an electrode assembly accommodated in the case, a cap-up disposed in the opening, a cap-down disposed to face the cap-up and connected to the electrode assembly, a vent plate disposed between the cap-up and the cap-down, an extension part extending from the vent plate and connected to the cap-up, and a contact part that protrudes from the vent plate toward the cap-down and is in contact with the cap-down, wherein a thickness of at least a portion of the vent plate increases toward a central axis of the case.