Battery explosion prevention apparatus, battery pack, and method for operating the same
AssigneeLG Chem, Ltd.
InventorJun Ho LEE
Life of this patent
Estimating the term…
Abstract
Provided are a battery explosion prevention apparatus including a battery holder which is installed and fixed to a circumference of a battery module constituted by a plurality of secondary battery cells and on which at least one or more electromagnets are disposed on a lower portion thereof at a predetermined interval and a movable frame which has an opened one side to provide an insertion space into which the battery module is inserted and on which a plurality of punching needles are disposed on a bottom surface of the insertion space, and a battery pack including the battery module.
Claims13
A battery explosion prevention apparatus comprising:
- a battery holder which is installed and fixed to a circumference of a battery module constituted by a plurality of secondary battery cells and on which at least one or more electromagnets are disposed on a lower portion thereof at a predetermined interval;
- and
- a movable frame which has an opened one side to provide an insertion space into which the battery module is inserted and on which a plurality of punching needles are disposed on a bottom surface of the insertion space.
A battery pack comprising:
- a plurality of secondary battery cells;
- a battery module comprising a protection circuit module (PCM) configured to control charging/discharging of the secondary battery cells;
- and
- a battery explosion prevention apparatus mounted on the battery module.
A method for operating an explosion prevention battery pack, the method comprising:
- a reference temperature setting process of setting an explosion critical temperature of a secondary battery cell to a battery protection circuit module (PCM);
- a temperature comparison process of comparing a temperature of the secondary battery cell, which is measured in the battery PCM, with the reference temperature;
- an electromagnet operating process of operating an electromagnet in the battery PCM;
- and
- an electrolyte discharge process of punching the secondary battery cell by using a punching needle to discharge an electrolyte within the secondary battery cell.
Dependencies are inferred from the claim text.