The design and impact of in-situ and operando thermal sensing for smart energy storage

Fleming, Joe; Amietszajew, Tazdin; Charmet, Jérôme; Roberts, Alexander J.; Greenwood, David; Bhagat, Rohit

doi:10.1016/j.est.2019.01.026

Cited by 75 publications

(59 citation statements)

References 29 publications

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“…The coating provided a pinhole‐free conformal layer capable of preventing corrosion without creating thermal barriers, ensuring bilateral chemical neutrality. Long‐term stability of embedded assemblies was evaluated in our previous work …”

Section: Resultsmentioning

confidence: 99%

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Hybrid Thermo‐Electrochemical In Situ Instrumentation for Lithium‐Ion Energy Storage

Amietszajew

Fleming

Roberts

et al. 2019

Batteries & Supercaps

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Current "state-of-the-art" monitoring and control techniques for lithium-ion cells rely on full-cell potential measurement and occasional surface temperature measurements. However, Li-ion cells are complex multi-layer devices and as such these techniques have poor resolution, limiting applicability. In this work we develop hybrid thermo-electrochemical sensing arrays placed within the cell. The arrays are integrated into A5 pouch cells during manufacture and are used to create thermal maps in parallel with anode and cathode electrochemical data. The sensor array can be adapted to a range of cell formats and chemistries and installed into commercial or other industrially relevant cells, incorporating enhanced thermal and electrochemical diagnostic capability into a standard cell build.[a] Dr.

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Section: Resultsmentioning

confidence: 99%

“…Previously we have successfully deployed fibre optics technology and flexible substrate thermistors to monitor the cell's internal temperature, as well as standalone reference electrodes . Using these sensors fast‐charging was investigated and a five‐fold reduction in commercial cell charging times was achieved .…”

Section: Introductionmentioning

confidence: 99%

Hybrid Thermo‐Electrochemical In Situ Instrumentation for Lithium‐Ion Energy Storage

Amietszajew

Fleming

Roberts

et al. 2019

Batteries & Supercaps

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“…In addition to being directly used as the power supplies for future devices, smart LIBs need to be combined with other smart sensors and multifunctional materials, such as temperature, voltage, altitude, in situ temperature, SOC sensors, and sensors with ionic response functions to realize in situ monitoring of the state of health of LIB components . For example, Fleming et al embedded flexible distributed temperature sensors into pouch and cylindrical cells, this in situ temperature sensors can successfully detect rapid temperature fluctuation and spatial distribution with no response lag. A hybrid sensing methodology was also embedded in a pouch LIB cell to in situ monitor internal strain and temperature variations in different areas .…”

Section: Challenges and Perspectivesmentioning

confidence: 99%

Smart Materials and Design toward Safe and Durable Lithium Ion Batteries

et al. 2019

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Smart electrochemical energy storage devices are devices that can operate autonomously to some extent. Although the conventional electrochemical energy storage devices, e.g., the commonly used lithium‐ion batteries (LIBs), may be externally monitored in terms of their voltage and current output to reflect the state of health for the devices, it is extremely important to exploit materials and devices that are intrinsically smart enough to be capable of rapidly self‐detecting and responding to faults, such as interior short circuits, overheating, abnormal capacity drop, and other types of mechanical/chemical damage. These “smart” features could significantly enhance the safety characteristics and durability of LIBs, which is essential for future usage. Therefore, recent achievements toward smart materials and design strategies for safer and more durable LIBs are summarized. The main categories are as follows: 1) New materials: This category mainly includes smart electrode materials with thermal/electrical/mechanical self‐response functions, and self‐response separators to suppress thermal runaway/lithium dendrite growth; 2) New chemistries: This category mainly includes electrolytes with reversible self‐protecting functions; and 3) New architectures with novel functions, such as shape‐recovery, self‐heating, and self‐monitoring. Besides the working mechanisms, the challenges that must be overcome for smart LIBs to be adopted in practical applications are also discussed.

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“…Temperature inhomogeneities inside a battery can be measured with an instrumented cell with in situ measurement techniques during operation. [ 11–13 ] They can be induced by the inhomogeneous inner heat transfer paths and the anisotropic properties, caused by the layered structure of the electrode stacks, [ 14,15 ] with their typical combination of materials with high and low heat conductivity. [ 16 ] Furthermore, external conditions, such as the cooling system, can cause temperature inhomogeneities on the surface and within the cell.…”

Section: Introductionmentioning

confidence: 99%

“…[ 22,25 ] However, such in situ measurements are not possible without affecting the cell. [ 13,19 ] In general, a cell is a parallel connection of individual electrode sheets. Therefore, a parallel connection of several cells was proposed as an alternative to investigate the current distribution.…”

Section: Introductionmentioning

confidence: 99%

Measurement of the Temperature Influence on the Current Distribution in Lithium‐Ion Batteries

Paarmann¹,

Cloos²,

Technau³

et al. 2021

Energy Tech

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Herein, a comprehensive experimental studies on the interdependence of temperature and current distribution in lithium‐ion batteries is presented. Initially, a method for measuring the current distribution on a single cell is presented and verified by comparison with measurements on a parallel circuit. The presented method is straightforward and robust. It provides accurate quantitative and reproducible results. They are consistent with literature and show a higher current with increasing temperature. This temperature dependency is more pronounced at lower temperatures. Furthermore, it offers the opportunity to determine the influence of the temperature on the current distribution more precisely. Finally, this publication correlates the normalized current with temperature quantitatively using an Arrhenius‐like approach according to I∼exp(−1T).

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The design and impact of in-situ and operando thermal sensing for smart energy storage

Cited by 75 publications

References 29 publications

Hybrid Thermo‐Electrochemical In Situ Instrumentation for Lithium‐Ion Energy Storage

Hybrid Thermo‐Electrochemical In Situ Instrumentation for Lithium‐Ion Energy Storage

Smart Materials and Design toward Safe and Durable Lithium Ion Batteries

Measurement of the Temperature Influence on the Current Distribution in Lithium‐Ion Batteries

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