Thermal conductivity of intercalation, conversion, and alloying lithium-ion battery electrode materials as function of their state of charge

Shin, Jungwoo; Kim, Sang-Hyun; Park, Hoonkee; Jang, Ho Won; Cahill, David G.

doi:10.1016/j.cossms.2021.100980

Cited by 13 publications

(9 citation statements)

References 95 publications

(44 reference statements)

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“…Otherwise, local temperature increases will affect the stripping and plating at metal anodes and increase the kinetics of the degradation processes at both electrode interfaces. , On the other hand, local increasing kinetics may lead to beneficial effects that would otherwise require external heating. Therefore, thermal transport characterization of solid electrolytes and battery materials gains significant importance when solid-state battery packs are commercialized and thermal management and thermal uniformity across cells and modules becomes necessary. − To predict and model the thermal load during battery operation, the (effective) thermal properties of each constituent material must be known, , but this is not often the case for fast ionic conductors applicable in solid-state batteries.…”

mentioning

confidence: 99%

Scaling Relations for Ionic and Thermal Transport in the Na⁺ Ionic Conductor Na₃PS₄

Bernges

Böger

Maus

et al. 2022

ACS Materials Lett.

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Solid-state Na + and Li + batteries are promising energy storage technologies, suggesting increased operational safety due to the replacement of the flammable organic electrolyte with a nonflammable solid-electrolyte, leading to a significant advantage over conventional battery systems. While the thermal properties of conventional battery systems are studied extensively, the thermal properties of solid-state batteries and their components often remain elusive, and, consequently, not much is known about thermal runaway in solid systems. Moreover, these battery systems are often composed of complex multiphase components, e.g., the cathode composite consisting of solid electrolyte, active material, coatings and additives, which are of significant importance for their performance. Consequently, modeling of the thermal and ionic transport properties of such multiphase components is of tremendous interest. An often-neglected fact is that porosity has an additional influence on their transport. In order to shed light onto some of these issues, both the thermal conductivity and the ionic conductivity of the model ionic conductor Na 3 PS 4 are characterized as a function of porosity and evaluated using the Bruggemann model of the (differential) effective medium theory. It is found that the Bruggemann power-law (tortuosity factor) describing the density dependence differs significantly between thermal and ionic conductivity. This is unexpected within the current paradigm of the effective medium theory and motivates further study. Moreover, it is confirmed that Na 3 PS 4 , despite its relatively simple crystal structure, has an astonishingly low thermal conductivity, comparable to common thermoelectric materials and thermal barrier coatings, which can be explained by the diffusive nature of thermal transport by so-called "diffusons" rather than the usually known phonon transport.

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confidence: 99%

Scaling Relations for Ionic and Thermal Transport in the Na⁺ Ionic Conductor Na₃PS₄

Bernges

Böger

Maus

et al. 2022

ACS Materials Lett.

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“…[ 10,14–16 ] Among the design factors of 2D nanostructure, the intercalation of ions into layered structures is also considered an important design factor as a characteristic of reversibility and ion concentration‐dependent thermal conductivity. [ 17,18 ] These findings provide a practical perspective for predicting and regulating the thermal conduction characteristics of Li‐ion battery electrodes. Also, the study of Qian et al.…”

Section: Introductionmentioning

confidence: 94%

Electromechanical Origin of Phonon Dynamics Exhibiting Tunable Anisotropic Heat Transport in Layered Nanostructures

Kim,

Choi

2023

Small Methods

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Owing to the structural characteristics of 2D layered nanomaterials, anisotropic thermal conductivity is considered an attractive design factor for constructing efficient heat‐transfer pathways. In this study, the electromechanical origin of anisotropic thermal conduction in Ti3C2O2M (M = Li, Na, K) is investigated at the atomic scale using theoretical multiscale analysis. The results demonstrate that the acoustic and optical phonon modes drive interlayer and intralayer heat conduction, respectively. Further, the lower the atomic number of the alkali ions intercalated in the Ti3C2O2 layer, the more immediately it responds to externally applied oscillations owing to its low inertia and high electrostatic force. The Li‐ion layer exhibits an instantaneous response to vibrational excitations from an external source, making it transparent to higher phonon modes under interlayer and intralayer thermal conduction. The electromechanical modulation properties of the ion layer are further elucidated, providing practical insights into the design of anisotropic thermal paths.

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“…However, the energy storage mechanism of batteries is generally very complex, and with the advent of newer battery types, it is getting even more complex. Charge storage in battery materials can occur through three distinct mechanisms, that are, intercalation where ions simply store at an available space, conversion followed by a chemical reaction, and alloying, which results in the formation of an alloy 5 . All these mechanisms bring several challenges, especially the conversion and alloying mechanisms create high volumetric changes and severe chemical changes within battery electrodes, their surface and electrolytes 5b .…”

Section: Introductionmentioning

confidence: 99%

X‐ray imaging for structural evolution and phase transformation dynamics of battery electrodes

Shuja,

Thatipamula,

Khan

et al. 2024

Battery Energy

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The impending energy crisis entails sustainable battery technologies with improved energy density, reliability, safety and lifetime. Hence, it is essential to gain detailed insights into the surface reactions, ionic diffusion, structural and morphological evolution, and degradation mechanisms of battery electrodes. Recently, X‐ray techniques emerged as revolutionary tools to reveal an in‐depth understanding of the battery during operations. This review provides an overview of the use of in situ/operando X‐ray techniques to understand the different functionalities of electrode materials inside the battery. It will focus on the phase transformation, structural evolution and dynamic properties of the battery electrodes, and discuss the relationship between battery failure and electro‐chemo‐mechanical failure in the electrode. Finally, the limitations of these methods are also discussed with the prospects for effective use of these techniques in the development of advanced battery technologies.

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Thermal conductivity of intercalation, conversion, and alloying lithium-ion battery electrode materials as function of their state of charge

Cited by 13 publications

References 95 publications

Scaling Relations for Ionic and Thermal Transport in the Na⁺ Ionic Conductor Na₃PS₄

Scaling Relations for Ionic and Thermal Transport in the Na⁺ Ionic Conductor Na₃PS₄

Electromechanical Origin of Phonon Dynamics Exhibiting Tunable Anisotropic Heat Transport in Layered Nanostructures

X‐ray imaging for structural evolution and phase transformation dynamics of battery electrodes

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Thermal conductivity of intercalation, conversion, and alloying lithium-ion battery electrode materials as function of their state of charge

Cited by 13 publications

References 95 publications

Scaling Relations for Ionic and Thermal Transport in the Na+ Ionic Conductor Na3PS4

Scaling Relations for Ionic and Thermal Transport in the Na+ Ionic Conductor Na3PS4

Electromechanical Origin of Phonon Dynamics Exhibiting Tunable Anisotropic Heat Transport in Layered Nanostructures

X‐ray imaging for structural evolution and phase transformation dynamics of battery electrodes

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Product

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Scaling Relations for Ionic and Thermal Transport in the Na⁺ Ionic Conductor Na₃PS₄

Scaling Relations for Ionic and Thermal Transport in the Na⁺ Ionic Conductor Na₃PS₄