Self-Compensation of Cross Influences using Spectral Transmission Ratios for Optical Fiber Sensors in Lithium-Ion Batteries

Rittweger, Florian; Modrzynski, Christian; Schiepel, Philipp; Riemschneider, Karl-Ragmar

doi:10.1109/sas51076.2021.9530176

Cited by 6 publications

(4 citation statements)

References 26 publications

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Section: Sox Battery Indicators Trackingmentioning

confidence: 99%

“…Furthermore, the optical signal detected does not rely on other usually estimated parameters in SoC estimation, such as current, voltage, and temperature. Rittweger et al, in 2021, present measurement results based on transmitted light intensities through the optical fiber as an indicator for the SoC (Figure 13B) [59]. The work also purposes to present an explanation of how to use the measured transmission intensity to decrease cross effects, such as temperature, pressure, or aging LIBs parameters.…”

Section: Sox Battery Indicators Trackingmentioning

confidence: 99%

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Tracking Li-Ion Batteries Using Fiber Optic Sensors

Nascimento¹,

Marques²,

Pinto³

2023

Smart Mobility - Recent Advances, New Perspectives and Applications

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Batteries are being seen as a key technology for battling CO2 emissions from the transport, power, and industry sectors. However, to reach the sustainability goals, they must exhibit ultrahigh performance beyond their capabilities today. So, it is becoming crucial to develop advanced diagnostic/prognostic tools injected into the battery that could nonintrusively track in time and space its physical and chemical parameters, for ensuring a greater lifetime and therefore lower its CO2 footprint. In this context, a smart battery sensing system with high performance and easy implementation is critically needed for the vital importance of safety and reliability in all batteries. Parameters like temperature (heat flow), strain, pressure, electrochemical events from electrode lithiation to gassing production, refractive index, and SoX battery indicators are of high importance to monitor. Recently, optical fiber sensors (OFS) have shown to be a feasible, accurate, and useful tool to perform this sensing, due to their intrinsic advantages and capabilities (lower invasiveness, multipoint and multiparameter detection, capability of multiplexing being embedded in harsh environments, and fast response). This chapter presents and discusses the studies published regarding the different types of OFS, which were developed to track several critical key parameters in Li-ion batteries, since the first study was reported in 2013.

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Section: Sox Battery Indicators Trackingmentioning

confidence: 99%

Section: Sox Battery Indicators Trackingmentioning

confidence: 99%

Tracking Li-Ion Batteries Using Fiber Optic Sensors

Nascimento¹,

Marques²,

Pinto³

2023

Smart Mobility - Recent Advances, New Perspectives and Applications

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“…16 Furthermore, the challenges and obstacles with the commercial implementation of FOEW sensors for monitoring SOC in LIBs, with a focus on reproducibility and sensitivity, were discussed in recent work. 17 In this study, we extend the characterization of fiber optic sensors based on evanescent waves to monitor LFP cathodes in pouch cells, which are closer to a commercial application. Constant current and cyclic voltammetry experiments were employed to link changes in intensity to the oxidation and reduction of iron in LFP when the optical fiber was positioned at the surface of the composite cathode in the pouch cells.…”

Section: ■ Introductionmentioning

confidence: 96%

“…Modrzynski et al also studied the LFP cathode with FOEW sensors based on the potential-dependent change in transparency of indium tin oxide (ITO) which was added to the cathode . Furthermore, the challenges and obstacles with the commercial implementation of FOEW sensors for monitoring SOC in LIBs, with a focus on reproducibility and sensitivity, were discussed in recent work …”

Section: Introductionmentioning

confidence: 99%

Fiber Optic Monitoring of Composite Lithium Iron Phosphate Cathodes in Pouch Cell Batteries

Hedman

Björefors

2021

ACS Appl. Energy Mater.

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Developing techniques for real-time monitoring of the complex and dynamic environment in lithium-ion batteries is crucial for optimal use of the cells and to develop the next generation of batteries. In this work, we demonstrate the use of fiber optic evanescent wave (FOEW) sensors for monitoring lithium iron phosphate (LFP) composite cathodes in pouch cells. The fiber optic sensors were placed on top of the LFP electrodes, and the pouch cells were found to cycle well with significantly improved electrochemical performance compared to fully embedded fibers in Swagelok cells. Galvanostatic, voltammetric, and pulsed current techniques demonstrated that the optical response correlated well with the capacity, and a clear difference in sensor response was seen when the sensors were placed at the surface of composite electrodes compared to fibers embedded in the cathode. The optical response from LFP at different rates was also investigated, but no apparent influence on intensity output was found even though polarization was observed in the voltage profiles at higher currents. It was also demonstrated that the electrolyte itself functioned as a fiber cladding and that the salt concentration in the electrolyte did not influence the optical signal. In addition, given the short penetration depth of the evanescent waves, the sensor response is most likely dominated by the surface conditions of electrode particles near the sensing region. These findings provide further insight into the application and performance of FOEW sensors integrated into batteries, as well as the possibility of developing low-cost fiber optic sensors for battery monitoring under working conditions.

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Functional Optical Fiber Sensors Detecting Imperceptible Physical/Chemical Changes for Smart Batteries

Li,

Wang,

Song

et al. 2024

Nano-Micro Lett.

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The battery technology progress has been a contradictory process in which performance improvement and hidden risks coexist. Now the battery is still a “black box”, thus requiring a deep understanding of its internal state. The battery should “sense its internal physical/chemical conditions”, which puts strict requirements on embedded sensing parts. This paper summarizes the application of advanced optical fiber sensors in lithium-ion batteries and energy storage technologies that may be mass deployed, focuses on the insights of advanced optical fiber sensors into the processes of one-dimensional nano–micro-level battery material structural phase transition, electrolyte degradation, electrode–electrolyte interface dynamics to three-dimensional macro-safety evolution. The paper contributes to understanding how to use optical fiber sensors to achieve “real” and “embedded” monitoring. Through the inherent advantages of the advanced optical fiber sensor, it helps clarify the battery internal state and reaction mechanism, aiding in the establishment of more detailed models. These advancements can promote the development of smart batteries, with significant importance lying in essentially promoting the improvement of system consistency. Furthermore, with the help of smart batteries in the future, the importance of consistency can be weakened or even eliminated. The application of advanced optical fiber sensors helps comprehensively improve the battery quality, reliability, and life.

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Self-Compensation of Cross Influences using Spectral Transmission Ratios for Optical Fiber Sensors in Lithium-Ion Batteries

Cited by 6 publications

References 26 publications

Tracking Li-Ion Batteries Using Fiber Optic Sensors

Tracking Li-Ion Batteries Using Fiber Optic Sensors

Fiber Optic Monitoring of Composite Lithium Iron Phosphate Cathodes in Pouch Cell Batteries

Functional Optical Fiber Sensors Detecting Imperceptible Physical/Chemical Changes for Smart Batteries

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