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Embedded Fiber Optic Sensors for In Situ and In-Operando Monitoring of Advanced Batteries

Published online by Cambridge University Press:  11 May 2015

Julian Schwartz
Affiliation:
Palo Alto Research Center (PARC, a Xerox Company), Palo Alto, CA 94304, U.S.A.
Kyle Arakaki
Affiliation:
Palo Alto Research Center (PARC, a Xerox Company), Palo Alto, CA 94304, U.S.A.
Peter Kiesel
Affiliation:
Palo Alto Research Center (PARC, a Xerox Company), Palo Alto, CA 94304, U.S.A.
Ajay Raghavan
Affiliation:
Palo Alto Research Center (PARC, a Xerox Company), Palo Alto, CA 94304, U.S.A.
Wilko Sommer
Affiliation:
Palo Alto Research Center (PARC, a Xerox Company), Palo Alto, CA 94304, U.S.A.
Alexander Lochbaum
Affiliation:
Palo Alto Research Center (PARC, a Xerox Company), Palo Alto, CA 94304, U.S.A.
Anurag Ganguli
Affiliation:
LG Chem Research, Yuseong-gu, Daejeon, Korea.
Alex Hegyi
Affiliation:
Palo Alto Research Center (PARC, a Xerox Company), Palo Alto, CA 94304, U.S.A.
Bhaskar Saha
Affiliation:
Palo Alto Research Center (PARC, a Xerox Company), Palo Alto, CA 94304, U.S.A.
Chang-Jun Bae
Affiliation:
Palo Alto Research Center (PARC, a Xerox Company), Palo Alto, CA 94304, U.S.A.
HoeJin Hah
Affiliation:
LG Chem Research, Yuseong-gu, Daejeon, Korea.
ChaeAh Kim
Affiliation:
LG Chem Research, Yuseong-gu, Daejeon, Korea.
Mohamed Alamgir
Affiliation:
LG Chem Power, Troy, MI 48083, U.S.A.
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Abstract

Our team is developing an optically-based smart monitoring system prototype targeting batteries for advanced battery applications such as hybrid and electric vehicles (EVs). The system concept envisions fiber optic (FO) sensors embedded within Lithium (Li)-ion batteries to measure parameters indicative of cell state in conjunction with our low-cost, compact optical wavelength-shift detection technology and intelligent algorithms to enable effective real-time performance management and optimized battery design. Towards these goals, we have successfully made functional prototypes of Li-ion pouch cells with FO sensors embedded within the electrode stack during cell fabrication. The strong, interesting signals from these FO sensors obtained over charge-discharge cycles offer valuable information and features to enable more accurate cell state-of-charge (SOC) and state-of-health (SOH) estimation, and better understand cell electrochemical and aging processes. This paper presents initial results from these prototype cells and compares the results from internal FO signals to earlier results reported by our team on purely external configurations where the FO sensors were attached to the cell skin.

Type
Articles
Copyright
Copyright © Materials Research Society 2015 

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References

Turrentine, T., Plug-in Hybrid Electric Vehicle Research Roadmap. UC Davis Plug-In, June 2011.
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Sommer, L. W., Raghavan, A., Kiesel, P., Saha, B., Staudt, T., Lochbaum, A., Ganguli, A., Bae, C.-J., Alamgir, M., Embedded Fiber Optic Sensing for Accurate State Estimation in Advanced Management Systems. MRS Proceedings, 1681, mrss14-1681-q01-03 doi:10.1557/opl.2014.560, 2014 CrossRef
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Sommer, L. W., Kiesel, P., Ganguli, A., Lochbaum, A., Schwartz, J., Saha, B., Bae, C.-J., Alamgir, M., and Raghavan, A., “Fast and Slow Ion Diffusion Processes in Lithium Ion Pouch Cells during Cycling Observed with Fiber Optic Strain Sensors”, to be published
Lochbaum, A., Kiesel, P., Sommer, L. W., Bae, C.-J., Staudt, T., Saha, B., Raghavan, A., Lieberman, R., Delgado, J., Choi, B., Alamgir, M. “Embedded Fiber Optic Chemical Sensing for Internal Cell Side-Reaction Monitoring in Advanced Battery Management Systems”, MRS Proceedings, 1681, mrss14-1681-q01-03 doi:10.1557/opl.2014.670, 2014 CrossRef
Kiesel, P., Hegyi, A., Raghavan, A., Lochbaum, A., Schwartz, J., Saha, B., Ganguli, A., Arakaki, K., “High-resolution wavelength shift detection of optical signals with low-cost, compact readouts”. SPIE Defense + Security, Fiber Optic Sensors and Applications XII, 2015.

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