Lg Chem, Ltd

Ji-Hoon Jeon

Seung-Don Choi

Jung-Hoon Yang

Young-Suk Cho

Dae-Sik Choi

Nan-Ji Yun

Yong-Kyu Ju

Jin-A Kang

Dae-Hong Kwon

The present invention describes a component for a secondary battery and a manufacturing method thereof, and a secondary battery manufactured by using the component. The component for a secondary battery according to the present invention comprises a lead-free soldering bridge having a melting point of 150 to 300&#xb0; C. and containing tin (Sn) and copper (Cu) as a main ingredient; the first and second metal plates spaced therebetween through a gap and coupling with the lead-free soldering bridge. According to the present invention, when an over-current flows through the component for a secondary battery, the temperature of the lead-free soldering bridge is locally increased rapidly to melt the lead-free soldering bridge, thereby efficiently interrupting the flow of an over-current.

Component for secondary battery and manufacturing method thereof, and secondary battery and multi-battery system manufactured by using the component

Provided is a secondary battery, comprising an electrode assembly including a first electrode plate, a second electrode plate and a separator; and a case having a receiving portion for receiving the electrode assembly and an electrolyte therein, the secondary battery comprising: a blowing agent applied onto at least one of a first tab and a second tab in a width direction of the tab, the first and second tabs being, respectively, connected to the first and second electrode plates and connected to leads which extend through the case.

Secondary battery having tab with blowing agent and manufacturing method thereof

Growing community of inventors

Daejeon, South Korea

Ji-Hoon Jeon