Performance and degradation characterization of electrochemical power sources using thermodynamics

Osara, Jude A.; Bryant, Michael D.

doi:10.1016/j.electacta.2020.137337

Cited by 7 publications

(16 citation statements)

References 31 publications

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“…The dissipation factor [18,26,30] which measures a non-thermal system's dissipation tendencies relative to useful work output/chemical reaction is…”

Section: Dissipation Factor J and Entropic Efficiency η Smentioning

confidence: 99%

“…The reversible changes 𝑑𝑤 𝑟𝑒𝑣 and 𝑑𝕊 𝑟𝑒𝑣 , which lack the instantaneous nonlinear characteristics of active dissipative processes and only serve as theoretical (maximum or minimum transformation/work) limits, can and will be neglected in subsequent analysis. However, for energy storage systems-such as batteriesin which transformation is often measured via increase/loss of energy storage capacity relative to a reference, the reversible terms of Equation ( 13) are used [17,18,23].…”

Section: Phenomenological Transformation-phenomenological Entropy Gen...mentioning

confidence: 99%

“…These and several others have presented accurate realworld results, with shortcomings attributable to assumptions. Osara and Bryant [17][18][19][20][21][22][23][24][25] directly correlated phenomenological entropy generation (PEG) [26] with a transformation/degradation measure, as prescribed by the degradation-entropy generation (DEG) theorem [27], to describe highly dissipative system-process interactions at near-100% accuracy.…”

Section: Introductionmentioning

confidence: 99%

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Systems and Methods for Transformation and Degradation Analyses

Osara,

Bryant

2024

Preprint

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Modern concepts in irreversible thermodynamics are applied to system transformation and degradation analyses. Phenomenological entropy generation (PEG) theorem is combined with the Degradation-Entropy Generation (DEG) theorem for instantaneous multi-disciplinary, multi-scale, multi-component system characterization. A Transformation-Phenomenological Entropy Generation (TPEG) theorem and space materialize with system and process defining elements and dimensions. The near-100% accurate, consistent results and features in recent publications demonstrating and applying the new TPEG methods to frictional wear, grease aging, electrochemical power systems cycling—including lithium-ion battery thermal runaway—metal fatigue loading and pump flow, are collated herein, demonstrating the practicality of the new and universal PEG theorem, and the predictive power of models that combine and utilize the PEG and DEG theorems. The methodology is useful for design, analysis, prognostics, diagnostics, maintenance and optimization.

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“…The dissipation factor [18,26,30] which measures a non-thermal system's dissipation tendencies relative to useful work output/chemical reaction is…”

Section: Dissipation Factor J and Entropic Efficiency η Smentioning

confidence: 99%

Section: Phenomenological Transformation-phenomenological Entropy Gen...mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Systems and Methods for Transformation and Degradation Analyses

Osara,

Bryant

2024

Preprint

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“…For comparison and further inspiration, ageing models developed for lithium-ion batteries have been considered [ 195 , 196 , 197 , 198 , 199 ]. Descriptions and models of performance and ageing of electrochemical energy storage and conversion devices, including EDLC supercapacitors based on thermodynamics, have been developed [ 200 ].…”

Section: Modellingmentioning

confidence: 99%

Ag(e)ing and Degradation of Supercapacitors: Causes, Mechanisms, Models and Countermeasures

Chen

Holze

2023

Molecules

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The most prominent and highly visible advantage attributed to supercapacitors of any type and application, beyond their most notable feature of high current capability, is their high stability in terms of lifetime, number of possible charge/discharge cycles or other stability-related properties. Unfortunately, actual devices show more or less pronounced deterioration of performance parameters during time and use. Causes for this in the material and component levels, as well as on the device level, have only been addressed and discussed infrequently in published reports. The present review attempts a complete coverage on these levels; it adds in modelling approaches and provides suggestions for slowing down ag(e)ing and degradation.

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“…In a tribo-system, degradation is accompanied by material removal [30][31][32][33][34][35]. The same physics is involved when one deals with a deterioration of performance in batteries during charging and discharging [36,37], loss of consistency in grease due to shearing action [38][39][40][41], and accumulation of damage in cyclic fatigue [42][43][44][45]. Therefore, it is hypothesized that the degradation can be characterized using the framework of irreversible thermodynamics.…”

Section: Introductionmentioning

confidence: 99%

A Unified Treatment of Tribo-Components Degradation Using Thermodynamics Framework: A Review on Adhesive Wear

Koottaparambil

Khonsari

2021

Entropy

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An extensive survey of open literature reveals the need for a unifying approach for characterizing the degradation of tribo-pairs. This paper focuses on recent efforts made towards developing unified relationships for adhesive-type wear under unlubricated conditions through a thermodynamic framework. It is shown that this framework can properly characterize many complex scenarios, such as degradation problems involving unidirectional, bidirectional (oscillatory and reciprocating motions), transient operating conditions (e.g., during the running-in period), and variable loading/speed sequencing.

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Performance and degradation characterization of electrochemical power sources using thermodynamics

Cited by 7 publications

References 31 publications

Systems and Methods for Transformation and Degradation Analyses

Systems and Methods for Transformation and Degradation Analyses

Ag(e)ing and Degradation of Supercapacitors: Causes, Mechanisms, Models and Countermeasures

A Unified Treatment of Tribo-Components Degradation Using Thermodynamics Framework: A Review on Adhesive Wear

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