A concept for direct deposition of thin film batteries on flexible polymer substrate

Glenneberg, Jens; Andre, Felix; Bardenhagen, Ingo; Langer, Frederieke; Schwenzel, Julian; Kun, Róbert

doi:10.1016/j.jpowsour.2016.06.007

Cited by 30 publications

(39 citation statements)

References 33 publications

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“…This effect is different for thin-film solid-state batteries. Glenneberg et al demonstrated an increased capacity for a bending radius of 20 mm for a thin-film battery on a flexible polymer substrate [ 22 ]. Slightly better capacity retention for a flexed state with 5-mm bending radius was observed by Kutbee et al [ 7 ].…”

Section: Resultsmentioning

confidence: 99%

Bending impact on the performance of a flexible Li₄Ti₅O₁₂-based all-solid-state thin-film battery

Sepúlveda

Speulmanns

Vereecken

2018

Science and Technology of Advanced Materials

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The growing demand of flexible electronic devices is increasing the requirements of their power sources. The effect of bending in thin-film batteries is still not well understood. Here, we successfully developed a high active area flexible all-solid-state battery as a model system that consists of thin-film layers of Li4Ti5O12, LiPON, and Lithium deposited on a novel flexible ceramic substrate. A systematic study on the bending state and performance of the battery is presented. The battery withstands bending radii of at least 14 mm achieving 70% of the theoretical capacity. Here, we reveal that convex bending has a positive effect on battery capacity showing an average increase of 5.5%, whereas concave bending decreases the capacity by 4% in contrast with recent studies. We show that the change in capacity upon bending may well be associated to the Li-ion diffusion kinetic change through the electrode when different external forces are applied. Finally, an encapsulation scheme is presented allowing sufficient bending of the device and operation for at least 500 cycles in air. The results are meant to improve the understanding of the phenomena present in thin-film batteries while undergoing bending rather than showing improvements in battery performance and lifetime.

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Section: Resultsmentioning

confidence: 99%

Bending impact on the performance of a flexible Li₄Ti₅O₁₂-based all-solid-state thin-film battery

Sepúlveda

Speulmanns

Vereecken

2018

Science and Technology of Advanced Materials

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“…A multitude of materials has been introduced as viable ion-conducting solid state materials for ASSBs: oxide-based ceramics (most prominently, Li 1.3 Al 0.3 Ti 1.7 (PO 4 ) 3 [2,3] and Li 7 La 3 Zr 2 O 12 [4,5]), sulfides [6,7], glasses (i.e., lithium phosphorus oxynitride (LiPON) [8]), and polymers [9,10]. Oxides have been reported to be chemically stable when exposed to the environment [4], which is a clear safety improvement compared to liquid electrolytes.…”

Section: Introductionmentioning

confidence: 99%

“…However, efforts to improve the wettability of Li metal, especially on Li 7 La 3 Zr 2 O 12 , have been successfully made [16]. LiPON is an established material for thin film batteries [8], but low ionic conductivity makes thin film processes-such as sputtering-necessary which, in turn, makes application in bulk batteries unfeasible.…”

Section: Introductionmentioning

confidence: 99%

Correlation of Mechanical and Electrical Behavior of Polyethylene Oxide-Based Solid Electrolytes for All-Solid State Lithium-Ion Batteries

et al. 2019

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Mechanical and electrochemical stability are key issues for large-scale production of solid state Li-ion batteries. Polymer electrolytes can provide good ionic conductivity, but mechanical strength needs to be improved. In this study, we investigate the correlation of mechanical and electrical properties of poly (ethylene oxide) (PEO)-based solid electrolytes for Li-ion batteries. The influence of alumina and LiClO4 addition are investigated. Differential scanning calorimetry (DSC) is used to study the thermal behavior of salt-free and salt-containing samples and to identify the melting temperature. Dynamic mechanical analysis reveals the elastic properties as a function of temperature. Electrochemical properties are investigated using impedance spectroscopy. It is found that addition of alumina increases mechanical strength, while LiClO4 decreases it. Addition of LiClO4 and Al2O3 increases ionic conductivity and improves mechanical properties. However, there is no overlapping window of high mechanical strength and high ionic conductivity.

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“…The most straightforward method is to utilize polymer films as a substrate to coat a layer of conductive materials ( e. g ., metals, CNTs, graphene, and MXene) for flexible current collectors [51] . Moreover, active materials can be deposited further to fabricate a freestanding electrode [52] . For example, Ye et al [6] .…”

Section: Polymer‐based Flexible Electrodesmentioning

confidence: 99%

An Overview of Flexible Electrode Materials/Substrates for Flexible Electrochemical Energy Storage/Conversion Devices

et al. 2021

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The rise of portable and wearable electronics has largely stimulated the development of flexible energy storage and conversion devices. As one of the essential parts, the electrode plays critical role in determining the device performance, which required to be highly flexible, light‐weight, and conformable for flexible and wearable applications. However, it remains a formidable challenge in the design of appropriate flexible electrodes. Thus, considerable effort has been making to develop various flexible materials/substrates to fabricate flexible energy devices. Here, this review aims to provide a comprehensive survey on the recently developed free‐standing and flexible electrode materials/substrates for flexible electrochemical energy storage devices, which are categorized into four different types including metal‐based, carbon‐based, polymer‐based, and micro‐patterned flexible electrodes. The specific characteristics, fabrication methods, properties, and pros and cons of each type of materials are thoroughly analysed. Furthermore, challenges and future directions for designing flexible electrode materials are also discussed.

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A concept for direct deposition of thin film batteries on flexible polymer substrate

Cited by 30 publications

References 33 publications

Bending impact on the performance of a flexible Li₄Ti₅O₁₂-based all-solid-state thin-film battery

Bending impact on the performance of a flexible Li₄Ti₅O₁₂-based all-solid-state thin-film battery

Correlation of Mechanical and Electrical Behavior of Polyethylene Oxide-Based Solid Electrolytes for All-Solid State Lithium-Ion Batteries

An Overview of Flexible Electrode Materials/Substrates for Flexible Electrochemical Energy Storage/Conversion Devices

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A concept for direct deposition of thin film batteries on flexible polymer substrate

Cited by 30 publications

References 33 publications

Bending impact on the performance of a flexible Li4Ti5O12-based all-solid-state thin-film battery

Bending impact on the performance of a flexible Li4Ti5O12-based all-solid-state thin-film battery

Correlation of Mechanical and Electrical Behavior of Polyethylene Oxide-Based Solid Electrolytes for All-Solid State Lithium-Ion Batteries

An Overview of Flexible Electrode Materials/Substrates for Flexible Electrochemical Energy Storage/Conversion Devices

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Product

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Bending impact on the performance of a flexible Li₄Ti₅O₁₂-based all-solid-state thin-film battery

Bending impact on the performance of a flexible Li₄Ti₅O₁₂-based all-solid-state thin-film battery