Charge/Discharge Simulation of an All-Solid-State Thin-Film Battery Using a One-Dimensional Model

Fabre, Steve Dimitri; Guy-Bouyssou, Delphine; Bouillon, Pierre; Cras, Frédéric Le; Delacourt, Charles

doi:10.1149/2.041202jes

Cited by 85 publications

(90 citation statements)

References 23 publications

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“…2,20,21 Notation will be kept similar to the source literature for convenience. The coordinate system and battery schematic are shown in Fig.…”

Section: Modeling Developmentmentioning

confidence: 99%

“…The coordinate system and battery schematic are shown in Fig. 1 and remain similar to Fabre et al, 2 where the boundary of the negative electrode/electrolyte is set as zero (x = 0). Voltages are defined as: V 0 = 0, the voltage of the negative electrode which is set as a reference; V 1 , the voltage on the electrolyte side of the negative electrode/electrolyte interface; V 2 , the voltage on the electrolyte side of the positive electrode/electrolyte interface; and V 3 , the voltage of the positive electrode.…”

Section: Modeling Developmentmentioning

confidence: 99%

“…1 Battery modeling can be used to help navigate these limitations, and many different modeling approaches have been developed. 2,3 This work focuses on adapting existing modeling approaches to capture cyclic, capacitive loading (i.e. repeated charging of a load that behaves approximately like a capacitor) of thin-film batteries, a loading which is very common in, for example, MEMS applications.…”

mentioning

confidence: 99%

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Modeling Cyclic Capacitive Loading of Thin-Film Batteries

Teichert

Oldham

2017

J. Electrochem. Soc.

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Previous modeling of thin-film batteries has primarily looked at simple discharge loads. This work examines modeling of midfrequency dynamic loads with large variation in current during repetitive loading cycles, a type of loading that is very common in microelectromechanical system (MEMS) applications. Here we show an extension of traditional modeling of thin-film batteries to account for switching and capacitive loading representing piezoelectric or electrostatic microactuation. This model captures behavior at both fast and slow timescales, including effects of short-duration, high-current spikes. We show validation of the model and introduce a cycle projection scheme that allows for over 94% reduction in numerical calculations over a full battery discharge which includes over a million cycles. © The Author(s) 2017. Published by ECS. This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 License (CC BY, http://creativecommons.org/licenses/by/4.0/), which permits unrestricted reuse of the work in any medium, provided the original work is properly cited. [DOI: 10.1149/2.1141702jes] All rights reserved.Manuscript submitted October 6, 2016; revised manuscript received December 2, 2016. Published January 5, 2017.Limitations of available power sources, such as batteries, place significant constraints on design of engineered systems at many scales, from vehicles to microelectromechanical systems (MEMS).1 Battery modeling can be used to help navigate these limitations, and many different modeling approaches have been developed. 2,3 This work focuses on adapting existing modeling approaches to capture cyclic, capacitive loading (i.e. repeated charging of a load that behaves approximately like a capacitor) of thin-film batteries, a loading which is very common in, for example, MEMS applications. Additionally, for small-scale systems, all-solid-state batteries are an attractive alternative to more traditional liquid electrolyte constructs in that sealing of the liquid electrolyte is avoided, 4 generally providing better size and assembly compatibility with micromachined devices. These solid electrolytes typically have lower ionic conductivities, but the effects of this are mitigated by the reduced thickness at which these thin films can be deposited.5 Various studies have looked at the different properties of various battery chemistries and configurations, [5][6][7][8][9][10][11][12] which is still a very active area of research. However, modeling of cyclic capacitive loads seems to be lacking in the literature.Understanding the implications of cyclic loading on batteries is important. There have been mixed reports on the broader loading category of intermittent loads on batteries at various scales. Several reports have indicated that loading conditions can have substantial effects on the battery output ability. Fuller et al.13 discussed different relaxation phenomena in lithium-ion insertion batteries. Feeney et al.14 recently demonstrated, on a specific primary Li-ion battery...

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“…2,20,21 Notation will be kept similar to the source literature for convenience. The coordinate system and battery schematic are shown in Fig.…”

Section: Modeling Developmentmentioning

confidence: 99%

Section: Modeling Developmentmentioning

confidence: 99%

mentioning

confidence: 99%

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Modeling Cyclic Capacitive Loading of Thin-Film Batteries

Teichert

Oldham

2017

J. Electrochem. Soc.

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“…This result is similar to other models with perfect contact area. 27,30 With the current model and parameter setting, the discharge capacity can still be maintained above 80% of the maximum capacity even at 20 C with perfect contact area. Figure 4b and 4c show the discharge curves with imperfect contact at C = 1 and 10, respectively.…”

Section: Resultsmentioning

confidence: 98%

Simulation of the Effect of Contact Area Loss in All-Solid-State Li-Ion Batteries

Tian

2017

J. Electrochem. Soc.

126

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Maintaining the physical contact between the solid electrolyte and the electrode is important to improve the performance of all-solidstate batteries. Imperfect contact can be formed during cell fabrication and will be worsened due to cycling, resulting in degradation of the battery performance. In this paper, the effect of imperfect contact area was incorporated into a 1-D Newman battery model by assuming the current and Li concentration will be localized at the contacted area. Constant current discharging processes at different rates and contact areas were simulated for a film-type Li|LiPON|LiCoO 2 all-solid-state Li-ion battery. The capacity drop was correlated with the contact area loss. It was found at lower cutoff voltage, the correlation is almost linear with a slope of 1; while at a higher cutoff voltage, the dropping rate is slower. To establish the relationship between the applied pressure and the contact area, Persson's contact mechanics theory was applied, as it uses self-affined surfaces to simplify the multi-length scale contacts in all-solid-state batteries. The contact area and pressure were computed for both film-type and bulk-type all-solid-state Li-ion batteries. The model is then used to suggest how much pressures should be applied to recover the capacity drop due to contact area loss. Conventional Li-ion batteries usually include a liquid electrolyte, which facilitates Li-ions transport between cathode and anode. However, the applications of Li-ion batteries are still limited by the flammability and narrow electrochemical window of the liquid electrolytes. 1-3During the past decades, several solid electrolytes 4-9 with the ionic conductivity close to the liquid electrolyte have been developed, thus enabled the development of all-solid-state batteries. The benefits of all-solid-state batteries are high energy density, non-flammability, and the large electrochemical window (if the solid electrolyte form stable interphase layers on electrode surface). 10,11However, a major bottleneck for all-solid-state Li-ion batteries lies at the high interfacial resistance due to two main factors, chemical effect and physical contact. 3 The chemical effect refers to the chemical changes at the solid-electrolyte/electrode interface that cause slower transport. The chemical changes include the interphase layer formation due to solid electrolyte decomposition, 11 and/or Li-ion depletion zone at the interface 12 (for example, LiPON/Li 2 CO 3 ). Physical contact induced impedance comes from the imperfect contact at the solid-electrolyte/electrode interface, which plays a more important role for batteries using solid-electrolytes than the conventional batteries employing liquid electrolytes. Liquid electrolytes can easily diffuse through the porous electrode and wet the electrode surface, so, any fracture and disconnection between solid particles will only cause electrical disconnection. However, for solid electrolytes, the fracture and disconnection will impede Li-ion transport, as well as electron transport. Thus...

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“…Danilov, et al [7] developed an isothermal model for thin-film solid-state batteries (TFSSB), which includes diffusion and migration of ions in the electrolyte, the charge-transfer kinetics at the electrolyte/electrode interface and Li-ion diffusion in the intercalation cathode. A number of other modeling approaches followed [8][9][10][11].…”

Section: Introductionmentioning

confidence: 99%

Modeling of all-solid-state thin-film Li-ion batteries: Accuracy improvement

et al. 2019

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Thin-film Solid-State Batteries (TFSSB) is one of most promising and quickly developing fields in modern electrochemical energy storage. Modeling these devices is interesting from theoretical and practical point of view. This paper represents a simulation approach for TFSSB which overcome a major drawback of available mathematical models, i.e. decline in accuracy of the models at high current rates. A onedimensional electrochemical model, including charge transfer kinetics on the electrolyte-electrode interface, diffusion and migration in electrolyte as well as diffusion in intercalation electrode has been developed and the simulation results are compared to experimental voltage-capacity measurements. A new definition of diffusion coefficient as a function of concentration, based on the experimental measurements, is used to improve the performance of the model. The simulation results fit the available experimental data at low and high discharge currents up to 5 mAh cm -2 . The models show that the cathode diffusion constant is a prime factor limiting the rate capability for TFSSB in particular for ultrafast charging applications.

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Charge/Discharge Simulation of an All-Solid-State Thin-Film Battery Using a One-Dimensional Model

Cited by 85 publications

References 23 publications

Modeling Cyclic Capacitive Loading of Thin-Film Batteries

Modeling Cyclic Capacitive Loading of Thin-Film Batteries

Simulation of the Effect of Contact Area Loss in All-Solid-State Li-Ion Batteries

Modeling of all-solid-state thin-film Li-ion batteries: Accuracy improvement

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