Lg Chem, Ltd

Chang Moon Jeong

Seung Don Choi

You Rim Yoon

Dae Sik Choi

Seung Su Cho

Hong Sin Kim

Dal Mo Kang

Min Chul Jang

In Cheol Shin

Sung Joon Park

Yo Jin Kim

Sang Yoon Jeong

Yong Kyu Ju

Ho Jin Jeon

Nan Ji Yun

Seung Taek Hong

Jun Seok Choi

Jae Sik Yoon

Soul Gie Hong

Yong Pal Park

Chang Ho Kim

The present invention relates to a battery temperature adjusting system including: a battery unit having a heating pad; a leading wire connected to the battery unit; and a current induction unit surrounding the leading wire, wherein the current induction unit is electrically connected to the heating pad. The battery temperature adjusting system according to the present invention generates the induced current by applying the current induction unit surrounding the leading wire connected to the battery unit, and increases the temperature of the battery unit by supplying the induced current to the heating pad, thereby obtaining a desired battery output in a low-temperature region even without the use of an external power source.

Battery temperature adjusting system and operating method thereof

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

A lithium ion secondary battery including a compound containing at least one thiol group (&#x2014;SH) in a molecule in a unit cell of the battery is provided. By including the compound containing thiol group (&#x2014;SH) having good reactivity with copper or copper ions, the formation of dendrite through the reduction of copper ions present in the inner portion of the battery or produced during operating the battery at the surface of an anode may be prevented. The internal short between two electrodes due to the dendrite may be also prevented.

Lithium ion secondary battery without internal short

Growing community of inventors

Cheongju-si, South Korea

Chang Moon Jeong