Fabrication of Li1+xAlxGe2-x(PO4)3 thin films by sputtering for solid electrolytes

Mousavi, Tayebeh; Chen, X.; Doerrer, Christopher; Jagger, Ben; Speller, Susannah; Grovenor, C.R.M.

doi:10.1016/j.ssi.2020.115397

Cited by 15 publications

(17 citation statements)

References 23 publications

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“…However, further increase in annealing temperature leads to a much less uniform microstructure with interconnected porosity, possibly due to the enhanced evaporation of volatile species at higher temperatures. Similar porous microstructures have been observed in N-free LAGP when processed at high temperatures [12],…”

Section: Morphology Of the Deposited Filmssupporting

confidence: 74%

“…Recently we optimised the sputtering and post annealing parameters to fabricate 1 µm LAGP films with ionic conductivities as high as 10 -4 S cm -1 [12], comparable to those reported for bulk ceramic samples fabricated by solid-state processing at high temperatures [3], [4].…”

Section: Introductionmentioning

confidence: 64%

“…N-doped LAGP thin films were grown by RF magnetron sputtering. The sputtering parameters were chosen based on our previous work [12] on the deposition of undoped LAGP films, where the processing parameters have been optimised for high deposition rates and the production of chemically uniform films with composition similar to that of the target. These parameters include a power density of 2.2 W/cm 2 , total gas pressure of 5.3×10 -3 mbar and sputtering time of 6 hrs.…”

Section: Experimental Methodsmentioning

confidence: 99%

“…The schematic image of our sputtering set up can be found in [28] [29]. Based on our previous work, post-deposition annealing was carried out at temperatures between 550 and 750 o C, since crystallisation of the amorphous assputtered films was observed to start at around 550 o C and highly crystalline films with the highest density were found at 700 o C [12]. During the heat-treatment process, the samples were surrounded by an excess of the starting LAGP powder to limit the loss of volatile lithium.…”

Section: Experimental Methodsmentioning

confidence: 99%

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Development of sputtered nitrogen-doped Li1+xAlxGe2-x(PO4)3 thin films for solid state batteries

et al. 2021

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Section: Morphology Of the Deposited Filmssupporting

confidence: 74%

Section: Introductionmentioning

confidence: 64%

Section: Experimental Methodsmentioning

confidence: 99%

Section: Experimental Methodsmentioning

confidence: 99%

See 2 more Smart Citations

Development of sputtered nitrogen-doped Li1+xAlxGe2-x(PO4)3 thin films for solid state batteries

et al. 2021

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“…In addressing this issue, various strategies have been developed for the fabrication of thin-film inorganic solid electrolytes including physical and chemical deposition techniques . For physical deposition, evaporation (e.g., pulsed laser deposition and electron beam evaporation) and sputtering (e.g., radio frequency (RF) magnetron sputtering) are commonly used techniques with wide material selection. − However, the physical vapor deposition suffers from line-of-sight material transfer, which can result in shadowing effect during deposition. This can cause poor conformal coating and nonuniform film thickness over the surface, in deep trenches, and structures with submicrometer and high aspect ratios .…”

Section: Semi-solid/solid Electrolytes In Flexible and Portable Elect...mentioning

confidence: 99%

Opportunities of Flexible and Portable Electrochemical Devices for Energy Storage: Expanding the Spotlight onto Semi-solid/Solid Electrolytes

et al. 2022

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The ever-increasing demand for flexible and portable electronics has stimulated research and development in building advanced electrochemical energy devices which are lightweight, ultrathin, small in size, bendable, foldable, knittable, wearable, and/or stretchable. In such flexible and portable devices, semi-solid/solid electrolytes besides anodes and cathodes are the necessary components determining the energy/power performances. By serving as the ion transport channels, such semi-solid/solid electrolytes may be beneficial to resolving the issues of leakage, electrode corrosion, and metal electrode dendrite growth. In this paper, the fundamentals of semi-solid/solid electrolytes (e.g., chemical composition, ionic conductivity, electrochemical window, mechanical strength, thermal stability, and other attractive features), the electrode–electrolyte interfacial properties, and their relationships with the performance of various energy devices (e.g., supercapacitors, secondary ion batteries, metal–sulfur batteries, and metal–air batteries) are comprehensively reviewed in terms of materials synthesis and/or characterization, functional mechanisms, and device assembling for performance validation. The most recent advancements in improving the performance of electrochemical energy devices are summarized with focuses on analyzing the existing technical challenges (e.g., solid electrolyte interphase formation, metal electrode dendrite growth, polysulfide shuttle issue, electrolyte instability in half-open battery structure) and the strategies for overcoming these challenges through modification of semi-solid/solid electrolyte materials. Several possible directions for future research and development are proposed for going beyond existing technological bottlenecks and achieving desirable flexible and portable electrochemical energy devices to fulfill their practical applications. It is expected that this review may provide the readers with a comprehensive cross-technology understanding of the semi-solid/solid electrolytes for facilitating their current and future researches on the flexible and portable electrochemical energy devices.

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Current Status and Future Perspective on Lithium Metal Anode Production Methods

Acebedo

Morant‐Miñana

Gonzalo

et al. 2023

Advanced Energy Materials

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Lithium metal batteries (LMBs) are one of the most promising energy storage technologies that would overcome the limitations of current Li‐ion batteries, based on their low density (0.534 g cm−3), low reduction potential (−3.04 V vs Standard Hydrogen Electrode) as well as their high theoretical capacities (3860 mAh g−1 and 2061 mAh cm−3). The overall cell mass and volume would be reduced while both gravimetric and volumetric energy densities would be greatly improved. Their electrochemical performance, however, is hampered by the low efficiency at high current densities and continuous degradation, which are related, among other factors, to the properties of the lithium metal anode (LMA). Hence, the production and processing of LMAs is crucial to obtain the desired properties that would enable LMBs. Here, the conventional method used for the production of LMAs, which is the combination of extraction, electrowinning, extrusion, and rolling processes, is reviewed. Then, the advances in the different alternative methods that can be used to produce and improve the properties of LMAs are described, which are divided into vapor phase, liquid phase, and electrodeposition. Within this last method, the anode‐less concept, for which different approaches to the development of advanced current collectors are illustrated, is included.

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Fabrication of Li1+xAlxGe2-x(PO4)3 thin films by sputtering for solid electrolytes

Cited by 15 publications

References 23 publications

Development of sputtered nitrogen-doped Li1+xAlxGe2-x(PO4)3 thin films for solid state batteries

Development of sputtered nitrogen-doped Li1+xAlxGe2-x(PO4)3 thin films for solid state batteries

Opportunities of Flexible and Portable Electrochemical Devices for Energy Storage: Expanding the Spotlight onto Semi-solid/Solid Electrolytes

Current Status and Future Perspective on Lithium Metal Anode Production Methods

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