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US 2022/0276146 A1Published application
Battery pack including gas sensing apparatus using mie scattering and gas detection method using the same
AssigneeLG Energy Solution, Ltd.
InventorsGi Moon GIL, Jee Ho KIM
Life of this patent
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Abstract
A battery pack is capable of sensing the generation of a gas using Mie scattering, whereby it is possible to rapidly detect abnormality of the battery pack. In addition, whether a battery is abnormal is determined in consideration of a gas generation time as well as the generation of the gas, whereby it is possible to rapidly detect whether the battery is abnormal.
Claims15
A battery pack comprising:
- at least one battery module comprising at least one unit cell;
- a rack housing configured to receive the at least one battery module;
- a lower housing having an inner space in a form in which an upper part of the lower housing is open, the lower housing being configured to receive the at least one battery module in the inner space;
- an upper housing coupled to the upper part of the lower housing, the upper housing having an inner space configured to receive the at least one battery module;
- and
- at least one laser unit disposed in the rack housing, the laser unit being configured to sense a gas using Mie scattering.
3 more elements
A gas detection method of a battery pack, the gas detection method comprising:
- 1. comparing a scattering ratio of laser light received by a laser receiver with a predetermined scattering ratio;
- 2. generating a signal when the scattering ratio of the received laser light is equal to or greater than the predetermined scattering ratio in step 1);
- and
- 3. sounding an alarm in response to a signal transmitted from a control part.
1 more element
Dependencies are inferred from the claim text.