University System of Maryland

USA As Represented by Secretary of the Navy

Bhanu Sood

Michael G Pecht

Michael D Osterman

Alberto Pique

Raymond C Y Auyeung

Scott A Mathews

A monitoring device for a battery pack, which includes a plurality of battery cells, has at least one ultrasound source and at least one ultrasound sensor. The ultrasound source can be configured to generate and direct ultrasound at one or more battery cells of the battery pack. The ultrasound sensor can be configured to detect ultrasound reflected from or transmitted through one or more cells of the battery pack. A battery management unit receives one or more signals from the ultrasound sensor responsive to the detected ultrasound. The battery management unit can be configured to determine a state of the battery pack based at least in part on the detected ultrasound.

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

A system for assessment of a battery cell can include a testing platform, a conveying system, one or more ultrasound sources, one or more ultrasound sensors, and a control unit. The conveying system can move the battery cell to the testing platform for assessment and from the testing platform after the assessment. The control unit can control the one or more ultrasound sources and the one or more ultrasound sensors to perform the assessment. The assessment can include determining a state of the battery cell based on one or more signals generated by the one or more ultrasound sensors. The control unit can control the conveying system to direct the battery cell from the testing platform responsive to the assessment.

A vehicle can comprise a battery cell, a monitoring device, and a controller. The monitoring device can comprise an ultrasound source and an ultrasound sensor. The ultrasound source can direct ultrasound at the battery cell, and the ultrasound sensor can detect ultrasound transmitted through or reflected from at least a portion of an interior of the battery cell. The ultrasound sensor can generate one or more signals responsive to the detected ultrasound. The controller can process the one or more signals from the ultrasound sensor and can output an indication of an internal state of the first battery cell.

A health monitoring device includes an ultrasound source and an ultrasound sensor. The ultrasound source can be configured to generate and direct ultrasound at an energy storage device. The ultrasound sensor can be configured to detect ultrasound reflected from or transmitted through the energy storage device and to generate a signal responsive to the detected ultrasound from the energy storage device. A control unit can be configured to determine a state of health of the energy storage device based on the signal from the ultrasound sensor.

A laser direct write method used to transfer entire single components such as semiconductor bare dies or surface mount passive and active components on a substrate or inside recess in a substrate for making embedded microelectronics is disclosed. This method laser-machine the pockets, laser-transfer the individual components inside those pockets, and then laser-print the interconnects required to 'wire' the components, thus resulting in a fully assembled embedded circuit required to make a fully functional microelectronic system.

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Gaithersburg, MD, United States of America

Bhanu Sood