Danger Sensing Battery Cell
AssigneeLG Chem, Ltd.
InventorKyoung Choon Min
Life of this patent
Estimating the term…
Abstract
Disclosed is battery cell including a reception unit of a battery case having an electrode assembly and an electrolytic solution received therein, a gas storage unit disposed outside the reception unit, a storage space in the gas storage unit being partitioned into two or more sections, and a sensor, wherein a signal is sensed by the sensor when the two or more sections of the gas storage unit are filled with gas. In the case in which the sensed signal deviates from a predetermined value, an alarm member signals danger, whereby an accident is prevented.
Claims20
A battery cell, comprising:
- a battery case;
- an electrode assembly received in a reception unit of the battery case together with an electrolytic solution;
- a gas storage unit configured to store gas generated in the battery cell, the gas storage unit being formed outside the reception unit, and
- a partitioning means that partitions a space defined in the gas storage unit into two or more sections, the partitioning means being provided in the gas storage unit.
A method of reducing a gas pressure in a reception unit of a battery case of a battery cell, the method comprising:
- providing an electrode assembly in the reception unit together with an electrolytic solution, and providing a gas storage unit in the battery case outside the reception unit, the gas storage unit having a partitioning means therein that partitions a space defined in the gas storage unit into two or more sections;
- generating a gas within the reception unit until the gas pressure in the reception unit becomes greater than or equal to a predetermined limit pressure;
- and
- deforming or breaching the partition means so that the gas flows from the reception unit into the gas storage unit, thereby reducing the gas pressure in the reception unit.
Dependencies are inferred from the claim text.