Highly Aligned Graphene Oxide for Lithium Storage in Lithium‐Ion Battery Through A Novel Microfluidic Process: The Pulse Freezing

Liu, Yifan; Ho, Kane; Hwang, Dae Kun; Zarrin, Hadis

doi:10.1002/admi.202201612

Cited by 5 publications

(3 citation statements)

References 48 publications

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“…The authors demonstrate that the high areal capacity is resulted from the improved transport kinetics, the presence of pores that buffer volume expansion, and decoration of conversion‐based active material Fe 3 O 4 . Liu et al 118 used pulse freezing method to prepare the vertically aligned graphene oxide films. Highly ordered graphene oxide is obtained through the following process: (1) Introducing the suspensions of graphene oxide into the two‐step polydimethylsiloxane microfluidic channel with various flow rates.…”

Section: Facet Controlled Li‐ion Batteriesmentioning

confidence: 99%

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Highly textured and crystalline materials for rechargeable Li‐ion batteries

et al. 2023

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To build an environment-friendly energy-based society, it is important to develop stable and high-performance batteries as an energy storage system. However, there are still unresolved challenges associated with safety issues, slow kinetics, and lifetime. To overcome these problems, it is essential to understand the battery systems including cathode, electrolyte, and anode. Using a well-controlled material system such as epitaxial films, textured films, and single crystals can be a powerful strategy to investigate the relationship between microstructural and electrochemical properties. In this review, we discuss the need for research with wellcontrolled materials system and recent progress in the well-controlled cathode, solid-state-electrolyte, and anode materials for Li-ion batteries. Enhanced stability and electrochemical performance due to the facilitation of prolonged and endured Li-ion transport in facet-controlled battery materials are highlighted. Finally, the challenges and future directions utilizing the well-controlled battery system for high-performance battery are proposed.

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Section: Facet Controlled Li‐ion Batteriesmentioning

confidence: 99%

Section: Facet Controlled Li‐ion Batteriesmentioning

confidence: 99%

Highly textured and crystalline materials for rechargeable Li‐ion batteries

et al. 2023

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“…Polymer nanocomposites (PNCs) made of orderly distributed two-dimensional nanosheets (2DNSs) generally exhibit a good electrical − and thermal conductivity − and provide an effective electromagnetic interference (EMI) shielding , in high-power electronic devices and advanced anode materials, as designed for novel lithium-ion batteries. − The effective forces induced by structural changes of the polymers and 2DNSs play an important role in controlling the self-assembly of 2DNSs in PNCs. In particular, the conformational entropy of polymer chains dominates the phase behaviors of 2DNSs whenever the involved enthalpic interactions do not exceed the order of the thermal fluctuations, k B T .…”

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confidence: 99%

Depletion Strategies for Crystallized Layers of Two-Dimensional Nanosheets to Enhance Lithium-Ion Conductivity in Polymer Nanocomposites

Wei,

Wu,

Peng

et al. 2024

ACS Macro Lett.

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The assembly of long-range aligned structures of two-dimensional nanosheets (2DNSs) in polymer nanocomposites (PNCs) is in urgent need for the design of nanoelectronics and lightweight energy-storage materials of high conductivity for electricity or heat. These 2DNS are thin and exhibit thermal fluctuations, leading to an intricate interplay with polymers in which entropic effects can be exploited to facilitate a range of different assemblies. In molecular dynamics simulations of experimentally studied 2DNSs, we show that the layer-forming crystallization of 2DNSs is programmable by regulating the strengths and ranges of polymer-induced entropic depletion attractions between pairs of 2DNSs, as well as between single 2DNSs and a substrate surface, by exclusively tuning the temperature and size of the 2DNS. Enhancing the temperature supports the 2DNS−substrate depletion rather than crystallization of 2DNSs in the bulk, leading to crystallized layers of 2DNSs on the substrate surfaces. On the other hand, the interaction range of the 2DNS−2DNS depletion attraction extends further than the 2DNS− substrate attraction whenever the 2DNS size is well above the correlation length of the polymers, which results in a nonmonotonic dependence of the crystallization layer on the 2DNS size. It is demonstrated that the depletion-tuned crystallization layers of 2DNSs contribute to a conductive channel in which individual lithium ions (Li ions) migrate efficiently through the PNCs. This work provides statistical and dynamical insights into the balance between the 2DNS−2DNS and 2DNS−substrate depletion interactions in polymer−2DNS composites and highlights the possibilities to exploit depletion strategies in order to engineer crystallization processes of 2DNSs and thus to control electrical conductivity.

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Improved Conductivity of Low‐Temperature‐Synthesized Graphene/Cu for CMOS Backend‐of‐Line Interconnect Applications

Wang,

Shih,

Tseng

et al. 2024

Adv Materials Inter

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This study proposes a synthesis strategy of high‐quality graphene films on the copper foil at a temperature of 400 °C throughout the graphene growth process without employing high‐temperature annealing. Through continuous CO2 laser pretreatment of the copper foil, the surface smoothness improves, and the removal of copper particles and copper oxide results in fewer defects on the foil. Therefore, the nucleation density of graphene is reduced, leading to a more uniform and continuous graphene film and showing an outstanding quality of graphene with low defects and low resistivity compared with other groups. After laser treatment, the copper foil's resistivity decreases from 1.71 ×10−8 to 1.51 ×10−8 Ω·m. The graphene‐coated on laser‐treated foil experiences an even more substantial decrease in resistivity, from 1.34 ×10−8 to 1.18 ×10−8 Ω·m, marking a significant 11.94% reduction. Excitingly, the groundbreaking technique is taken to the next level by applying it to fine copper interconnects as narrow as 0.4 µm. The experiments confirm the successful cultivation of graphene on these miniature scales, showing the immense potential of the approach. The proposed approach aligns with the demands of contemporary CMOS backend‐of‐line processes, facilitating the seamless incorporation of graphene in advanced chip technologies.

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Highly Aligned Graphene Oxide for Lithium Storage in Lithium‐Ion Battery Through A Novel Microfluidic Process: The Pulse Freezing

Abstract: The ORCID identification number(s) for the author(s) of this article can be found under https://doi.org/10.1002/admi.202201612.

Cited by 5 publications

References 48 publications

Highly textured and crystalline materials for rechargeable Li‐ion batteries

Highly textured and crystalline materials for rechargeable Li‐ion batteries

Depletion Strategies for Crystallized Layers of Two-Dimensional Nanosheets to Enhance Lithium-Ion Conductivity in Polymer Nanocomposites

Improved Conductivity of Low‐Temperature‐Synthesized Graphene/Cu for CMOS Backend‐of‐Line Interconnect Applications

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