Lg Chem, Ltd

John E NamGoong

Ju-Seok Lee

Jin-Kyu Shin

Ju-Young Kim

Hey-Woong Park

A contact pad configured to sense the voltage of a cell module assembly including at least one battery cell, is electrically connected to a voltage sensing module for measuring the voltage of the battery cell in the cell module assembly and electrically contacted with an electrode of the battery cell, and is made of a conductive organic elastomer, thereby improving reliability of electrical contact with each battery cell, and effectively preventing malfunction of the cell module assembly caused by impurities, external physical shocks and so on.

Contact pad for sensing voltage of cell module assembly and cell module assembly

To check insulation of a pouch electric cell, probes are contacted to an electrode of a pouch electric cell and an aluminum layer of a pouch of the pouch electric cell, respectively, and then an electric characteristic value between the probes is measured. The probe contacted with the aluminum layer has a contact portion made of conductive elastic material. Also, insulation of the pouch electric cell is determined by comparing the measured electric characteristic value with a reference value. Thus, physical characteristics of an outer periphery of a flexible pouch may be sufficiently exhibited in measuring or checking insulation of a pouch electric cell such as insulation resistance, thereby improving reliability of electric contact and minimizing physical damage or deformation of the pouch electric cell.

Method and apparatus for checking insulation of pouch electric cell and probe for the same

An apparatus for checking insulation of a cell module assembly composed of a plurality of pouch cells includes a first probing unit electrically contacted to an electrode of the cell module assembly; a second probing unit electrically contacted to aluminum films of selected ones of the pouch cells in the cell module assembly; and a measuring unit for measuring an insulation resistance between the first probing unit and the second probing unit. This apparatus may measure insulation resistances of a plurality of pouch cells of the cell module assembly at once, thereby ensuring faster insulation checking.

Growing community of inventors

Chungbuk, South Korea

John E NamGoong