Rapid monitoring of impedance phase shifts in lithium-ion batteries for hazard prevention

Srinivasan, R.; Demirev, Plamen A.; Carkhuff, Bliss G.

doi:10.1016/j.jpowsour.2018.10.014

Cited by 79 publications

(48 citation statements)

References 32 publications

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“…We demonstrated recently that changes in cell impedance (Z cell ) can be measured tens of seconds before the pre-TR venting. 92 Cell impedance values are dependent on the frequencies at which they are measured. For example, in LG HG2 and Samsung SDI-26F 18650 cells, changes in impedance before the pre-TR venting are detectable at frequencies less than 10 Hz.…”

Section: Discussionmentioning

confidence: 99%

Review—Thermal Safety Management in Li-Ion Batteries: Current Issues and Perspectives

Srinivasan

Demirev

Carkhuff

et al. 2020

J. Electrochem. Soc.

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Approaches for thermal management of lithium-ion (Li-ion) batteries do not always keep pace with advances in energy storage and power delivering capabilities. Root-cause analysis and empirical evidence indicate that thermal runaway (TR) in cells and cell-tocell thermal propagation are due to adverse changes in physical and chemical characteristics internal to the cell. However, industry widely uses battery management systems (BMS) originally designed for aqueous-based batteries to manage Li-ion batteries. Even the "best" BMS that monitor both voltage and outside-surface temperature of each cell are not capable of preventing TR or TR propagation, because voltage and surface-mounted temperature sensors do not track fast-emerging adverse events inside a cell. Most BMS typically include a few thermistors mounted on select cells to monitor their surface temperature. Technology to track intra-cell changes that are TR precursors is becoming available. Simultaneously, the complex pathways resulting in cell-to-cell TR propagation are being successfully modelled and mapped. Innovative solutions to prevent TR and thermal propagation are being advanced. These include modern BMS for rapid monitoring the internal health of each individual cell and physical as well as chemical methods to reduce the deleterious effects of rapid cell-to-cell heat and material transport in case of TR.

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Section: Discussionmentioning

confidence: 99%

Review—Thermal Safety Management in Li-Ion Batteries: Current Issues and Perspectives

Srinivasan

Demirev

Carkhuff

et al. 2020

J. Electrochem. Soc.

Self Cite

View full text Add to dashboard Cite

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“…The Z SEI is frequency-dependent (a wide range of frequency from 10 Hz to 1 kHz), and its quadrature component is capacitive (negative phase shifts) [251]. Srinivasan et al [253] proved that simply measuring the phase shift (φ) to estimate the temperature of the cell is feasible. Compared with deriving SEI layer resistance (R SEI ) and electrolyte resistance (R S ) [57,254], φ is easier to estimate the temperature without requiring multiple-frequency impedance, and it is well matched with measured data of the electrical equivalent circuit model [255].…”

Section: Monitoring Temperature and Voltagementioning

confidence: 99%

“…The temperature monitoring for dynamic operation should be extensively studied. Besides accurately monitoring the temperature of cells, the phase shift has proved to be an effective parameter to predict cell venting, which could be a decisive condition for best control of the batteries [253].…”

Section: Monitoring Temperature and Voltagementioning

confidence: 99%

Building Safe Lithium-Ion Batteries for Electric Vehicles: A Review

Duan

Tang

Dai

et al. 2019

Electrochem. Energ. Rev.

542

260

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Lithium-ion batteries (LIBs), with relatively high energy density and power density, have been considered as a vital energy source in our daily life, especially in electric vehicles. However, energy density and safety related to thermal runaways are the main concerns for their further applications. In order to deeply understand the development of high energy density and safe LIBs, we comprehensively review the safety features of LIBs and the failure mechanisms of cathodes, anodes, separators and electrolyte. The corresponding solutions for designing safer components are systematically proposed. Additionally, the in situ or operando techniques, such as microscopy and spectrum analysis, the fiber Bragg grating sensor and the gas sensor, are summarized to monitor the internal conditions of LIBs in real time. The main purpose of this review is to provide some general guidelines for the design of safe and high energy density batteries from the views of both material and cell levels.

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“…However, high DC (dis)charge currents, interference from electric components, crosstalk interference, SoC and aging dependencies make it challenging to implement. So far, most research on this subject was performed under equilibrium conditions, although impedance-based temperature indication also has been applied under current flow [277,[290][291][292], and for thermal runaway monitoring [293]. However, more research efforts on the implementation of impedance-based temperature indication are necessary in order to obtain a clear understanding how accurately and fast it can be performed.…”

Section: Impedance-based Temperature Measurementsmentioning

confidence: 99%

A review on various temperature-indication methods for Li-ion batteries

et al. 2019

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Temperature measurements of Li-ion batteries are important for assisting Battery Management Systems in controlling highly relevant states, such as State-of-Charge and State-of-Health. In addition, temperature measurements are essential to prevent dangerous situations and to maximize the performance and cycle life of batteries. However, due to thermal gradients, which might quickly develop during operation, fast and accurate temperature measurements can be rather challenging. For a proper selection of the temperature measurement method, aspects such as measurement range, accuracy, resolution, and costs of the method are important. After providing a brief overview of the working principle of Li-ion batteries, including the heat generation principles and possible consequences, this review gives a comprehensive overview of various temperature measurement methods that can be used for temperature indication of Li-ion batteries. At present, traditional temperature measurement methods, such as thermistors and thermocouples, are extensively used. Several recently introduced methods, such as impedance-based temperature indication and fiber Bragg-grating techniques, are under investigation in order to determine if those are suitable for largescale introduction in sophisticated battery-powered applications.

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Rapid monitoring of impedance phase shifts in lithium-ion batteries for hazard prevention

Cited by 79 publications

References 32 publications

Review—Thermal Safety Management in Li-Ion Batteries: Current Issues and Perspectives

Review—Thermal Safety Management in Li-Ion Batteries: Current Issues and Perspectives

Building Safe Lithium-Ion Batteries for Electric Vehicles: A Review

A review on various temperature-indication methods for Li-ion batteries

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