Lg Energy Solution, Ltd.

Ui Yong Jeong

In Cheol Shin

Seong Ha Cha

Hyung Jin Hwang

Won Hyeok Lee

Ha Eun Youn

The present invention relates to a battery system for detecting a damaged battery cell, and a method of evaluating a battery module. The battery system and the apparatus for evaluating performance of the battery module can accurately predict the location of the battery cell where gas has been generated by introducing a plurality of gas sensor units in the battery module where a plurality of battery cells are accommodated, and comparing gas detection time points measured in the gas sensor units when gas is generated in a battery cell. Hence, the battery system and the apparatus for evaluating performance of the battery module can be usefully used in terms of development of a battery module and/or management of a developed battery module.

Battery system and battery module evaluation method capable of detecting damaged battery cell

The present invention provides a battery safety test device includes: a mechanical switch element having one end connected to either a battery positive or negative electrode and the other end connected to an electronic switching element; the electronic switching element having one end connected to the mechanical switch element and the other end connected to the other of the battery positive or negative electrode; a voltage sensor for measuring a voltage of the battery after the mechanical switch element and the electronic switching element are turned on; and a current sensor for measuring a current of the battery after the mechanical switch element and the electronic switching element are turned on.

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Daejeon, South Korea

Ui Yong Jeong