Lg Chem, Ltd

Soul Gie Hong

Seung Don Choi

You Rim Yoon

Seung Su Cho

Yong Kyu Ju

Seung Taek Hong

Dal Mo Kang

Min Chul Jang

In Cheol Shin

Dae Sik Choi

Yo Jin Kim

Sang Yoon Jeong

Chang Moon Jeong

Nan Ji Yun

Jun Seok Choi

Dae Hong Kwon

Chang Ho Kim

Provided are a secondary battery, a battery module, and a battery pack, which have improved safety. Particularly, since a bulletproof material is disposed on the inside and/or the outside of an exterior part, even when a conductive needle-shaped member penetrates a secondary battery, heating, burning, discharge of evaporated electrolyte, and electrical contact between the needle-shaped member and an electrode can be prevented, thereby improving safety of the secondary battery, the battery module, and the battery pack.

Secondary battery having improved safety

Provided is a novel structural electric device having improved safety. More particularly, provided is a novel structural electric device devised to resolve several issues regarding heat generation, ignition, and explosion, which may be caused by a sharp needle-shaped object penetrating an electric device.

Structural electric device having improved safety

Growing community of inventors

Seoul, South Korea

Soul Gie Hong