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SENSOR project overview video


Under the ARPA-E Advanced Management and Protection of Energy-Storage Devices (AMPED) program for advanced battery management systems, PARC and LG Chem Power (LGCPI) are developing SENSOR (Smart Embedded Network of Sensors with an Optical Readout), an optically based smart monitoring system prototype for battery packs. The system will use fiber optic sensors embedded inside Lithium-ion battery cells to measure parameters indicative of cell state online, such as state-of-charge (SOC) and state-of-health (SOH). SENSOR will leverage PARC's low-cost, compact wavelength-shift detection technology and intelligent algorithms to enable effective real-time performance management, optimized battery design, and improved safety. While SENSOR is initially targeting batteries for hybrid and electric vehicles (EVs), it will be extendable to battery systems for other challenging domains such as aircrafts, satellites, grid storage, and military vehicles.

This recent update video describes some exciting results over the project’s first half focused on cell-level state features detectable, initial SOX algorithm development, low-cost optical readout development, and early validation test results. More recently, initial module-level tests using large-format test xEV cells with embedded fiber-optic (FO) sensors have been successful, thus offering early validation for the technology beyond the promising cell-level results accomplished earlier. At this stage, PARC is ready to take SENSOR to the next level of testing and development and is engaging with OEMs and battery industry stakeholders interested in evaluating SENSOR through validation/early qualification in cells, modules, and packs. Contact PARC to learn more: engage@parc.com.





A short demonstration video of PARC’s high-resolution, multiplexed fiber-optic sensing readout


An overview talk on SENSOR presented at the Battery Show 2015 in Novi, Michigan

Download the slides for the above talk


This earlier video offers an overview of the problem, and an introduction of the project, the underlying enabling technologies, and various possible spin-off applications.


patent publications

Monitoring and management for energy storage devices
A Raghavan, P Kiesel, B Saha
US Patent App. 13/630,660

Monitoring/Managing Electrochemical Energy Device Using Detected Intercalation Stage Changes
P Kiesel, LW Sommer, A Raghavan, B Saha, T Staudt, A Lochbaum
US Patent App. 14/242,853

Sensor Apparatus and Method Based on Wavelength Centroid Detection
P Kiesel, A Lochbaum, A Raghavan, B Saha, T Staudt, LW Sommer
US Patent 20,150,185,139

6 other pending patent applications

information sheet

download information sheet in English | Japanese




blog post

Shedding light on advanced batteries to manage them better
10 September 2014 | Ajay Raghavan 




ARPA-E Summit
29 February - 2 March 2016 | Washington DC 

The Battery Show
15 - 17 September 2015 | Novi, MI 

ARPA-E AMPED annual meeting
1 January 2015 | Washington DC