Encapsulated U-shape lossy mode resonance optical fibre sensor for temperature quantification of lithium-ion batteries

IF 4.9 3区工程技术 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

Sensors and Actuators A-physical Pub Date : 2025-08-26 DOI:10.1016/j.sna.2025.117004

Keith M. Alcock , Keng Goh , Mustehsan Beg , Sonia Melendi-Espina , Miguel Hernaez

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Abstract

Accurate measurement of essential operational parameters in electrochemical energy storage devices is vital for ensuring reliable and long-lasting performance in a circular economy. This study presents the first use of a Lossy Mode Resonance (LMR) optical fibre sensor to measure the temperature of lithium-ion batteries, which is a highly influential aspect of their degradation. This technique enables an effective and simple application of optical fibre sensors for energy storage devices. The design involves using a U-shaped fibre to accurately detect changes in absorption, rather than changes in wavelength. Additionally, it incorporates a thin-film of graphene oxide and polyethyleneimine to induce the LMR which is enclosed within polydimethylsiloxane which alters refractive index with temperature. The total sensitivity reached is −0.0072 A.U./°C and −0.39 nm/°C, with excellent linearity values of R² 0.98 and R² 0.99 for the 2 C and 2.5 C discharge rates, respectively. This work emphasises the affordable, accurate, and innovative use of LMR sensors, which encourages the advancement and utilisation of these sensors in electrochemical energy storage systems.

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用于锂离子电池温度量化的封装u形有损模式谐振光纤传感器

准确测量电化学储能装置的基本操作参数对于确保循环经济中可靠和持久的性能至关重要。这项研究首次使用了有损模式共振（LMR）光纤传感器来测量锂离子电池的温度，这是锂离子电池退化的一个重要方面。该技术使光纤传感器在能量存储设备中的应用变得有效和简单。该设计包括使用u形光纤来准确检测吸收的变化，而不是波长的变化。此外，它结合了氧化石墨烯和聚乙烯亚胺的薄膜来诱导LMR，该LMR被封闭在聚二甲基硅氧烷中，该硅氧烷随温度改变折射率。总灵敏度为- 0.0072 A.U./°C和- 0.39 nm/°C，对2 C和2.5 C放电速率的线性值分别为R²0.98和R²0.99。这项工作强调了LMR传感器的经济、准确和创新的使用，这鼓励了这些传感器在电化学储能系统中的进步和利用。

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来源期刊

Sensors and Actuators A-physical 工程技术-工程：电子与电气

CiteScore

8.10

自引率

6.50%

发文量

630

审稿时长

49 days

期刊介绍： Sensors and Actuators A: Physical brings together multidisciplinary interests in one journal entirely devoted to disseminating information on all aspects of research and development of solid-state devices for transducing physical signals. Sensors and Actuators A: Physical regularly publishes original papers, letters to the Editors and from time to time invited review articles within the following device areas: • Fundamentals and Physics, such as: classification of effects, physical effects, measurement theory, modelling of sensors, measurement standards, measurement errors, units and constants, time and frequency measurement. Modeling papers should bring new modeling techniques to the field and be supported by experimental results. • Materials and their Processing, such as: piezoelectric materials, polymers, metal oxides, III-V and II-VI semiconductors, thick and thin films, optical glass fibres, amorphous, polycrystalline and monocrystalline silicon. • Optoelectronic sensors, such as: photovoltaic diodes, photoconductors, photodiodes, phototransistors, positron-sensitive photodetectors, optoisolators, photodiode arrays, charge-coupled devices, light-emitting diodes, injection lasers and liquid-crystal displays. • Mechanical sensors, such as: metallic, thin-film and semiconductor strain gauges, diffused silicon pressure sensors, silicon accelerometers, solid-state displacement transducers, piezo junction devices, piezoelectric field-effect transducers (PiFETs), tunnel-diode strain sensors, surface acoustic wave devices, silicon micromechanical switches, solid-state flow meters and electronic flow controllers. Etc...