US 2025/0093305 A1Published application

Systems, methods, and devices for health monitoring of an energy storage device

AssigneeUniversity of Maryland, College Park

InventorsBhanu SOOD, Michael G. PECHT, Michael D. OSTERMAN

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Abstract

A system for ultrasonic assessment of an energy storage device can include a source array, a sensor array, a charger and/or load, and a controller. Ultrasound sources of the source array can be configured to generate and direct ultrasound into an interior volume of the energy storage device. Ultrasound sensors of the sensor can be configured to detect ultrasound from the interior volume of the energy storage device and to generate a response signal responsive to the detected ultrasound. The controller can be configured to determine a stage of the energy storage device (e.g., state of health) based in part upon the response signal of each of the ultrasound sensors and to alter charging by the charger or discharging by the load based at least in part on the determined state.

Claims18

Dependent claims

A system for ultrasonic assessment of an energy storage device, the system comprising:

a source array comprising ultrasound sources disposed against a first surface of the energy storage device, each ultrasound source being configured to generate and direct ultrasound into an interior volume of the energy storage device;
a sensor array comprising ultrasound sensors disposed against a second surface of the energy storage device, each ultrasound sensor being configured to detect ultrasound from the interior volume of the energy storage device and to generate a response signal responsive to the detected ultrasound;
a charger connected to the energy storage device and configured to charge the energy storage device, a load connected to the energy storage device and configured to discharge the energy storage device, or both the charger and the load connected to the energy storage device;
and
a controller configured to:
control each of the ultrasound sources to generate and direct ultrasound while the energy storage device is charging via the charger or discharging via the load,
control each of the ultrasound sensors to detect ultrasound while the energy storage device is charging via the charger or discharging via the load,
determine a state of the energy storage device based in part upon the response signal of each of the ultrasound sensors, the determined state being a state of health, and
alter the charging or the discharging based at least in part on the determined state of health,
wherein a number of the ultrasound sensors in the sensor array is greater than a number of the ultrasound sources in the source array.

7 more elements

A method for ultrasonic assessment of an energy storage device, the method comprising:

disposing ultrasound sources against the energy storage device;
disposing ultrasound sensors against the energy storage device, a number of the ultrasound sensors being greater than a number of the ultrasound sources;
charging the energy storage device via a charger connected to the energy storage device, or discharging the energy storage device via a load connected to the energy storage device;
generating and directing ultrasound into an interior volume of the energy storage device by each of the ultrasound sources while the energy storage device is charging via the charger or discharging via the load;
detecting ultrasound from an interior volume of the energy storage device by each of the ultrasound sensors while the energy storage device is charging via the charger or discharging via the load;
generating, by each of the ultrasound sensors, a response signal responsive to the detected ultrasound;
receiving, by one or more processors, the response signal responsive to the detected ultrasound from each of the ultrasound sensors;
determining, by the one or more processors, a state of the energy storage device based in part upon the response signal of each of the ultrasound sensors, the determined state being a state of health;
and
altering the charging or the discharging based at least in part on the determined state of health.

7 more elements

A system for ultrasonic assessment of an energy storage device, the system comprising:

a first transducer array disposed against a first surface of the energy storage device, each transducer in the first transducer array being configured to generate and direct ultrasound into an interior volume of the energy storage device, to detect ultrasound reflected from the interior volume of the energy storage device, and to generate a response signal responsive to the detected ultrasound;
a second transducer array disposed against a second surface of the energy storage device, each transducer in the second transducer array being configured to generate and direct ultrasound into the interior volume of the energy storage device, to detect ultrasound reflected from the interior volume of the energy storage device, and to generate a response signal responsive to the detected ultrasound;
a charger connected to the energy storage device and configured to charge the energy storage device, a load connected to the energy storage device and configured to discharge the energy storage device, or both the charger and the load connected to the energy storage device;
and
a controller configured to:
control each of the transducers in the first transducer array and in the second transducer array to generate and direct ultrasound into the interior volume of the energy storage device while the energy storage device is charging via the charger or discharging via the load,
control each of the transducers in the first transducer array and in the second transducer array to detect the ultrasound reflected from the interior volume of the energy storage device while the energy storage device is charging via the charger or discharging via the load,
determine a state of the energy storage device based in part upon the response signal of each of the transducers, the determined state being a state of health, and
alter the charging or the discharging based at least in part on the determined state of health,
wherein the transducers in the first transducer array are staggered with respect to the transducers in the second transducer array.

7 more elements

Dependencies are inferred from the claim text.

Facts

Application: 18/967,045Filed 3 Dec 2024
Priority: 15 Aug 2013
Published: 20 Mar 2025
Term ends: Not estimatedThe source records don’t support an estimate.

Classification30 codes

G01N 29/11
Analysing solids: by measuring attenuation of acoustic waves
B60L 3/12
Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy…:…
B60L 58/16
For monitoring or controlling batteries: responding to battery ageing, e.g. to the number of charging cycles or the state of health [SoH]
B60L 58/21
Of two or more battery modules: having the same nominal voltage

Family

Application61/866,300Us provisional application · filed 15 Aug 2013
Application14/912,113Continuation · filed 15 Feb 2016
Application15/996,442Continuation · filed 2 Jun 2018
Application16/855,060Continuation · filed 22 Apr 2020
Application17/556,990Continuation · filed 20 Dec 2021
Application18/967,045Continuation
US 10,014,561 B2Related patent
US 10,673,101 B2Related patent
US 11,609,210 B2Related patent
US 12,196,715 B2Related patent
US 2016/0197382 A1Published application
US 2018/0287219 A1Published application
US 2020/0251788 A1Published application
US 2022/0113284 A1Published application
US 2025/0093305 A1This patent

From the US filing history. Foreign family members aren’t listed.

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