MUMBAI, India, Aug. 24 -- Intellectual Property India has published a patent application (202517081076 A) filed by Lg Energy Solution, Ltd. on August 27, 2025, for Battery Cell Having Structure For Preventing Side Wall Member Of Can From Rupturing.
Inventors include Cho, Sung-Min; Hwang, Dong-Sung; Park, Jeong-Ho; and Hong, Tae-Rim.
The application for the patent was published on August 21, 2026, under issue no. 34/2026.
Abstract: The present invention provides a battery cell capable of preventing a side wall portion of a can from rupturing during thermal runaway. The battery cell comprises: a can including a side wall member extending in an axial direction and an open end portion provided at one axial end portion of the side wall member; a cap covering the open end portion; an electrode assembly accommodated in the can; and a current collection plate electrically connecting the electrode assembly and the can. An edge of the cap is bonded to the one axial end portion of the side wall member. The cap is provided with a rupture-inducing portion having a loop shape concentric with the edge of the cap. The current collection plate comprises: a main body portion connected to an electrode tab of the electrode assembly; a loop shaped can connection portion which is arranged centrifugally relative to the main body portion and is bonded to at least one of the side wall member or the cap; and a bridge which extends radially, and of which the centripetal side is connected to the main body portion and the centrifugal side is connected to the can connection portion. The rupture- inducing portion of the cap is disposed further outward in the radial direction than the centripetal edge of the can connection portion.
Disclaimer: Curated by HT Syndication.
