High Energy Li‐Ion Electrodes Prepared via a Solventless Melt Process

Astafyeva, Ksenia; Dousset, Capucine; Bureau, Yannick; Stalmach, Sara‐Lyne; Dufour, Bruno

doi:10.1002/batt.201900187

Cited by 14 publications

(11 citation statements)

References 26 publications

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“…Notably, the dry-fabricated electrodes exhibited a high discharge capacity of 185.3 mA h g –1 at 0.1C and 30 °C. Recent developments in the dry-fabrication processes for LIB technology could be considered the benchmarks for ASSBs. − …”

Section: Industrial Perspective Of Halide Sesmentioning

confidence: 99%

Emerging Halide Superionic Conductors for All-Solid-State Batteries: Design, Synthesis, and Practical Applications

et al. 2022

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Recently, halide superionic conductors have emerged as promising solid electrolyte (SE) materials for all-solid-state batteries (ASSBs), owing to their inherent properties combining high Li + conductivity, good chemical and electrochemical oxidation stabilities, and mechanical deformability, compared to sulfide or oxide SEs. In this Review, recent advances in halide Li + -and Na + -conducting SEs are comprehensively summarized. After introducing the ionic diffusion mechanism and related governing factors of the crystal structures, we discuss the design strategies, such as the substitution and synthesis protocols, of the halide materials for further improving their properties. We review theoretical and experimental results on electrochemical stabilities and compatibilities with electrode materials. Moreover, we offer a critical assessment of the challenges and issues associated with the development of practical ASSB applications, such as cost considerations, stabilities in atmospheric air, aqueous solutions, and slurryprocessing, and the wet-slurry or dry fabrication of sheet-type electrodes (or SE membranes) for large-format ASSBs. Based on these discussions, we provide a perspective on the future research directions of halide SEs, emphasizing the need for expanding the materials space.

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Section: Industrial Perspective Of Halide Sesmentioning

confidence: 99%

Emerging Halide Superionic Conductors for All-Solid-State Batteries: Design, Synthesis, and Practical Applications

et al. 2022

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“…Astafyeva et al used the same process to fabricate lithium nickel cobalt aluminum oxide (NCA) cathodes and graphite anodes. The type of binder used in their study is not directly mentioned in their work but they specify that elastomer or thermoplastic binders are used with conductive carbons and at least 90 wt.% of active material [94]. This technique is similar to the one proposed by Sotomayor et al except that no solvent is needed at any stage of the process.…”

Section: Porous Electrodesmentioning

confidence: 99%

Challenges in Solvent-Free Methods for Manufacturing Electrodes and Electrolytes for Lithium-Based Batteries

et al. 2021

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With the ever-growing energy storage notably due to the electric vehicle market expansion and stationary applications, one of the challenges of lithium batteries lies in the cost and environmental impacts of their manufacture. The main process employed is the solvent-casting method, based on a slurry casted onto a current collector. The disadvantages of this technique include the use of toxic and costly solvents as well as significant quantity of energy required for solvent evaporation and recycling. A solvent-free manufacturing method would represent significant progress in the development of cost-effective and environmentally friendly lithium-ion and lithium metal batteries. This review provides an overview of solvent-free processes used to make solid polymer electrolytes and composite electrodes. Two methods can be described: heat-based (hot-pressing, melt processing, dissolution into melted polymer, the incorporation of melted polymer into particles) and spray-based (electrospray deposition or high-pressure deposition). Heat-based processes are used for solid electrolyte and electrode manufacturing, while spray-based processes are only used for electrode processing. Amongst these techniques, hot-pressing and melt processing were revealed to be the most used alternatives for both polymer-based electrolytes and electrodes. These two techniques are versatile and can be used in the processing of fillers with a wide range of morphologies and loadings.

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“…20 On the other hand, the extrusion strategy can fabricate the electrode with high contents of active materials (>90 wt %) with an extremely high mass loading of >5 mAh/cm 2 or even 10 mAh/cm 2 . [61][62][63] (4) 3D printing 3D printing is a developing concept to fabricate 3D materials with special morphologies that has also been applied to battery areas. 64,65 Dry 3D printing applies the mechanism of fused deposition modeling (FDM) without the aid of solvent.…”

Section: (B) Dry Coatingmentioning

confidence: 99%

Dry electrode technology, the rising star in solid-state battery industrialization

Zhao

Yuan

et al. 2022

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173

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High Energy Li‐Ion Electrodes Prepared via a Solventless Melt Process

Cited by 14 publications

References 26 publications

Emerging Halide Superionic Conductors for All-Solid-State Batteries: Design, Synthesis, and Practical Applications

Emerging Halide Superionic Conductors for All-Solid-State Batteries: Design, Synthesis, and Practical Applications

Challenges in Solvent-Free Methods for Manufacturing Electrodes and Electrolytes for Lithium-Based Batteries

Dry electrode technology, the rising star in solid-state battery industrialization

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