Sk Innovation Co., Ltd.

Sooyeup Jang

Jeonkeun Oh

Jeon Keun Oh

Joonghui Lee

The present invention relates to a safety apparatus and a protection method of a secondary battery, which can prevent explosion and fire of the secondary battery using a switch or a rupture switch attached on the outside of the secondary battery if a swelling degree of the secondary battery reaches a predetermined value when the secondary battery is swelled due to abnormal usage such as overcharge, short-circuit, reverse-connection and heat-exposure of large-capacity lithium polymer battery.

Safety apparatus and protection method of secondary battery for electric vehicle using switch

A safety switch of a secondary battery module for an electric vehicle includes a cutting member attached to one surface of one secondary battery cell in the secondary battery module for the electric vehicle configured by connecting at least two secondary battery cells and having a cutting body and a cut member attached to one surface of the other secondary battery cell while facing the cutting member and including a cut body configured to approach the cutting body of the cutting member and be cut by the approaching cutting body to electrically disconnect the secondary battery cells, when the secondary battery cells are expanded due to the swelling phenomenon.

Safety switch for secondary battery module for electric vehicle and charging and discharging system for secondary battery module for electric vehicle using the same

The present invention relates to a fixing structure of a raulti-layer printed circuit board, and more particularly, to a fixing structure of a multi-layer printed circuit board, which has a simple structure and a high fixing force using a printed circuit board fixing portion having slots.

Growing community of inventors

Daejeon, South Korea

Sooyeup Jang