Modification of aluminum current collectors with a conductive polymer for application in lithium batteries

Lepage, David; Savignac, Laurence; Saulnier, Mathieu; Gervais, Simon; Schougaard, Steen B.

doi:10.1016/j.elecom.2019.03.009

Cited by 43 publications

(21 citation statements)

References 37 publications

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“…Previous studies have investigated coating materials such as graphene, [ 18 ] metal‐oxide thin films, [ 19 ] and conductive polymers. [ 20 ] In the present study, GO was used as a coating material to confirm the effect of diffusion barriers on the morphological changes and the electrochemical behaviors of Al. [ 21 ] The XPS and Raman spectra of GO used are provided in Figure S8, Supporting Information.…”

Section: Resultsmentioning

confidence: 99%

Passivation Failure of Al Current Collector in LiPF₆‐Based Electrolytes for Lithium‐Ion Batteries

Yoon

Lee

Byun

et al. 2022

Adv Funct Materials

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Next-generation Li-ion batteries are being developed with high-voltage cathodes to maximize their energy and power densities. However, the commercialization of high-voltage cathodes has been delayed due to the degradations of active materials and electrolytes in long-term cycling. Recent advances have made significant improvements in these issues; however, the corrosion of Al current collector and its effects on battery performances have not been studied in detail despite its importance. In this study, the compositional and morphological evolutions of the passivation layer formed on Al are examined. The ion fluxes of Al 3+ and F − through the native oxide layer of Al play a critical role in the formation of the passivation film and the inhibition of further corrosion. However, the continuous diffusion of the ions during long-term cycling at elevated temperature deteriorates the passivation ability of the film. An artificial diffusion barrier on the surface of Al effectively suppresses the ion fluxes to enhance the cyclability of LiNi 0.5 Mn 1.5 O 4 . This work contributes to improving the stability of the current collector at high voltages and serves as a benchmark for corrosion studies concerning advanced energy storage devices.

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Section: Resultsmentioning

confidence: 99%

Passivation Failure of Al Current Collector in LiPF₆‐Based Electrolytes for Lithium‐Ion Batteries

Yoon

Lee

Byun

et al. 2022

Adv Funct Materials

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“…At the positive electrode in lithium-ion batteries an aluminum foil is used as current collector and mechanical support. Its coating with PEDOT by chemical vapor deposition has been suggested (Lepage et al 2019). A 30% increase in discharge capacity was attributed to this coating.…”

Section: Auxiliary Components and Functionsmentioning

confidence: 95%

Intrinsically conducting polymers and their combinations with redox-active molecules for rechargeable battery electrodes: an update

Kondratiev

Holze

2021

Chem. Pap.

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Intrinsically conducting polymers and their copolymers and composites with redox-active organic molecules prepared by chemical as well as electrochemical polymerization may yield active masses without additional binder and conducting agents for secondary battery electrodes possibly utilizing the advantageous properties of both constituents are discussed. Beyond these possibilities these polymers have found many applications and functions for various further purposes in secondary batteries, as binders, as protective coatings limiting active material corrosion, unwanted dissolution of active mass ingredients or migration of electrode reaction participants. Selected highlights from this rapidly developing and very diverse field are presented. Possible developments and future directions are outlined.

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“…Coating current collectors with carbon has been widely applied to reduce the contact resistance [34] . Recently, conducting polymers were also examined as coatings [35] . Carbon coatings do not only benefit the rate performance but also improve the long‐term cycling capacity retention [36] .…”

Section: Electron Transport In Composite Electrodesmentioning

confidence: 99%

Recent Insights into Rate Performance Limitations of Li‐ion Batteries

Heubner

Nikolowski

Reuber

et al. 2020

Batteries & Supercaps

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Increasing the fast charging capabilities and the driving range of electric vehicles are major goals in Li‐ion battery research to accelerate mass market adoption and reduce greenhouse gas emissions. This requires a fundamental understanding of the performance limiting factors to enable a knowledge‐based optimization of materials, electrode design and cell architectures. Herein, electrochemical fundamentals and recent insights concerning rate performance limitations of Li‐ion batteries at the electrode level are reviewed and discussed from charge and mass transport perspectives. The application of straightforward analytical and semi‐empirical models is highlighted in view of understanding specific performance limiting factors of electrodes for Li‐ion batteries based on experimental investigations. The summarized insights are discussed regarding promising improvement strategies to approach the practical limits of liquid electrolyte‐based Li‐ion batteries.

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Modification of aluminum current collectors with a conductive polymer for application in lithium batteries

Cited by 43 publications

References 37 publications

Passivation Failure of Al Current Collector in LiPF₆‐Based Electrolytes for Lithium‐Ion Batteries

Passivation Failure of Al Current Collector in LiPF₆‐Based Electrolytes for Lithium‐Ion Batteries

Intrinsically conducting polymers and their combinations with redox-active molecules for rechargeable battery electrodes: an update

Recent Insights into Rate Performance Limitations of Li‐ion Batteries

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Modification of aluminum current collectors with a conductive polymer for application in lithium batteries

Cited by 43 publications

References 37 publications

Passivation Failure of Al Current Collector in LiPF6‐Based Electrolytes for Lithium‐Ion Batteries

Passivation Failure of Al Current Collector in LiPF6‐Based Electrolytes for Lithium‐Ion Batteries

Intrinsically conducting polymers and their combinations with redox-active molecules for rechargeable battery electrodes: an update

Recent Insights into Rate Performance Limitations of Li‐ion Batteries

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Passivation Failure of Al Current Collector in LiPF₆‐Based Electrolytes for Lithium‐Ion Batteries

Passivation Failure of Al Current Collector in LiPF₆‐Based Electrolytes for Lithium‐Ion Batteries