Instantaneous measurement of the internal temperature in lithium-ion rechargeable cells

Srinivasan, R.; Carkhuff, Bliss G.; Butler, Michael; Baisden, Andrew C.

doi:10.1016/j.electacta.2011.03.136

Cited by 159 publications

(113 citation statements)

References 28 publications

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“…Many studies have elucidated that the EIS characteristics of battery are dramatically impacted by the external environment and internal conditions, especially the temperature [16][17][18][19][20]32]. The electrochemical reaction rate, transfer rate and diffusion rate of lithium-ion are slowed down resulting from the temperature decreasing [32], so the lower temperature enlarges the battery impedance.…”

Section: Impedance Phase Shift With Equilibrium Temperature At 10 Hzmentioning

confidence: 99%

“…Nowadays, a simple technique to monitor battery internal temperature based on impedance measurement has been proposed [15][16][17][18][19][20]. Hande [15] provided a technique to estimate the cell internal temperature by measuring the pulse resistance.…”

Section: Introductionmentioning

confidence: 99%

“…Hande [15] provided a technique to estimate the cell internal temperature by measuring the pulse resistance. Srinivasan et al [16] firstly demonstrated the intrinsic relationship between battery internal temperature and the phase shift obtained from EIS (electrochemical impedance spectroscopy). Schmidt et al [17] introduced a sensorless temperature measurement method for a 2 Ah pouch cell via the real part of impedance spectroscopy at high frequencies with state of charge (SoC) status unknown and they also studied the influence of temperature gradient on the method by experiments.…”

Section: Introductionmentioning

confidence: 99%

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Battery Internal Temperature Estimation for LiFePO4 Battery Based on Impedance Phase Shift under Operating Conditions

et al. 2017

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An impedance-based temperature estimation method is investigated considering the electrochemical non-equilibrium with short-term relaxation time for facilitating the vehicular application. Generally, sufficient relaxation time is required for battery electrochemical equilibrium before the impedance measurement. A detailed experiment is performed to investigate the regularity of the battery impedance in short-term relaxation time after switch-off current excitation, which indicates that the impedance can be measured and also has systematical decrement with the relaxation time growth. Based on the discussion of impedance variation in electrochemical perspective, as well as the monotonic relationship between impedance phase shift and battery internal temperature in the electrochemical equilibrium state, an exponential equation that accounts for both measured phase shift and relaxation time is established to correct the measuring deviation caused by electrochemical non-equilibrium. Then, a multivariate linear equation coupled with ambient temperature is derived considering the temperature gradients between the active part and battery surface. Equations stated above are all identified with the embedded thermocouple experimentally. In conclusion, the temperature estimation method can be a valuable alternative for temperature monitoring during cell operating, and serve the functionality as an efficient implementation in battery thermal management system for electric vehicles (EVs) and hybrid electric vehicles (HEVs).

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Section: Impedance Phase Shift With Equilibrium Temperature At 10 Hzmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Battery Internal Temperature Estimation for LiFePO4 Battery Based on Impedance Phase Shift under Operating Conditions

et al. 2017

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“…Srinivasan et al [96] discovered an intrinsic relationship between a cell's internal temperature and a readily measurable electrical parameter, namely the phase shift between an applied sinusoidal current and the induced voltage, which enables an instantaneous measurement of the battery internal temperature. The electrochemical cause of this observed relationship is analysed.…”

Section: Internal Temperature Estimationmentioning

confidence: 99%

A brief review on key technologies in the battery management system of electric vehicles

et al. 2018

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Batteries have been widely applied in many high-power applications, such as electric vehicles (EVs) and hybrid electric vehicles, where a suitable battery management system (BMS) is vital in ensuring safe and reliable operation of batteries. This paper aims to give a brief review on several key technologies of BMS, including battery modelling, state estimation and battery charging. First, popular battery types used in EVs are surveyed, followed by the introduction of key technologies used in BMS. Various battery models, including the electric model, thermal model and coupled electro-thermal model are reviewed. Then, battery state estimations for the state of charge, state of health and internal temperature are comprehensively surveyed. Finally, several key and traditional battery charging approaches with associated optimization methods are discussed.

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“…In addition, sensorless temperature detection methods using indirect sensing methods, like electrochemical impedance spectroscopy [64][65][66] can be used additionally. New methods to acquire temperature along wire harnesses within complex electrical systems can also be utilized to add safety [67].…”

Section: Safety and Reliabilitymentioning

confidence: 99%

Battery Management System Hardware Concepts: An Overview

et al. 2018

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This paper focuses on the hardware aspects of battery management systems (BMS) for electric vehicle and stationary applications. The purpose is giving an overview on existing concepts in state-of-the-art systems and enabling the reader to estimate what has to be considered when designing a BMS for a given application. After a short analysis of general requirements, several possible topologies for battery packs and their consequences for the BMS' complexity are examined. Four battery packs that were taken from commercially available electric vehicles are shown as examples. Later, implementation aspects regarding measurement of needed physical variables (voltage, current, temperature, etc.) are discussed, as well as balancing issues and strategies. Finally, safety considerations and reliability aspects are investigated.

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Instantaneous measurement of the internal temperature in lithium-ion rechargeable cells

Cited by 159 publications

References 28 publications

Battery Internal Temperature Estimation for LiFePO4 Battery Based on Impedance Phase Shift under Operating Conditions

Battery Internal Temperature Estimation for LiFePO4 Battery Based on Impedance Phase Shift under Operating Conditions

A brief review on key technologies in the battery management system of electric vehicles

Battery Management System Hardware Concepts: An Overview

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