US 12,614,768 B2Granted

Battery outgassing detector

AssigneeKidde Technologies, Inc.

InventorsJohn W. Porterfield, Robert Dunster, Albert C. Rouse, John Lewis, Barret Stein

Life of this patent

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Abstract

A system for detecting gas leakage within a battery pack includes a battery pack, a controller, and a detector. The battery pack comprises a plurality of cells which may be subject to a gas leakage. The detector is configured to sense a concentration value of one or more gases. The detector is further configured to generate a return signal indicative of no alarm, a first alarm level, or a second alarm level. The detector is electrically connected to the controller and is configured to transmit the return signal to the controller. The controller is configured to output a first alarm level or a second alarm level in response to the return signal. Emergency response procedures may be implemented based on the level of gas leakage within the battery pack indicated.

Claims20

Dependent claims

A gas detection system for a battery pack, the gas detection system comprising:

a battery pack comprising a plurality of cells;
a controller;
a first detector, in communication with the battery pack and configured to sense a concentration value of two or more gases, wherein:
the first detector is electrically connected to the controller;
the first detector is configured to generate an alarm level return signal indicative of no alarm, a first alarm, or a second alarm based upon the concentration value of the two or more gases wherein the first alarm is configured to be generated when a first concentration of a first gas is exceeded and/or a first concentration of a second gas is exceeded, and wherein the second alarm is configured to be generated when a second concentration of the first gas is exceeded and/or a second concentration of the second gas is exceeded;
the first detector is configured to transmit the alarm level return signal to the controller;
the controller is configured to output no alarm, the first alarm, or the second alarm based upon the alarm level return signal received from the first detector;
a second detector, in communication with the battery pack and configured to sense a concentration value of infrared radiation, wherein:
the second detector is electrically connected to the controller;
the second detector is configured to generate an alarm level return signal indicative of no alarm or a third alarm based upon the concentration value of the infrared radiation.

7 more elements

Dependencies are inferred from the claim text.

Facts

Application: 18/083,510Filed 17 Dec 2022
Published: US 2024/0204271 A120 Jun 2024
Granted: 28 Apr 2026
Term ends: Not estimatedThe source records don’t support an estimate.

Classification17 codes

G01N 33/0004
Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00: gaseous mixtures, e.g. polluted air
H01M 10/48
Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells: accumulators combined with arrangements for…
A62C 3/16
Fire prevention, containment or extinguishing specially adapted for particular objects or places: in electrical installations, e.g. cableways
A62C 37/40
By both sensor and actuator, e.g. valve, being in the danger zone: with electric connection between sensor and actuator