The Overlooked Role of Copper Surface Texture in Electrodeposition of Lithium Revealed by Electron Backscatter Diffraction

Wang, Weina; Li, Zhiyuan; Chen, Shuai; Wang, Yong; He, Yu-Shi; Ma, Zi-Feng; Li, Linsen

doi:10.1021/acsenergylett.3c02132

Cited by 3 publications

(1 citation statement)

References 38 publications

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“…Electrolytic copper foils (ECFs) are an important raw material for electronic devices, mainly used in lithium-ion batteries and printed circuit boards. − With the current electronic products moving toward miniaturization, lightweight design, and enhanced functionality, higher demands are being placed on the performance of ECFs . As the anodic current collector in lithium-ion batteries, it is imperative to further enhance the mechanical properties of ECFs to meet the high requirements for manufacturing efficiency and consistency in power batteries while achieving ultrathin design. , The stress formula, σ = F / S , reveals that as the ECF becomes thinner (which means the smaller cross-sectional area S ), the external force required for its rupture will decrease.…”

Section: Introductionmentioning

confidence: 99%

Relationship between the Orientation of the (100) Crystal Plane and Elongation in Ultrathin Electrolytic Copper Foils

Fan,

Hu,

et al. 2024

J. Phys. Chem. C

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Electrolytic copper foils (ECFs), owing to their excellent mechanical properties and conductivity, have become an indispensable component as an anodic current collector in lithiumion batteries. ECFs often show texture properties, but the intrinsic relationship between the texture and mechanical properties is rarely reported. The authors find a conspicuous preference for the (100) crystal plane in 6 and 8 μm ultrathin ECFs with high elongation. And certain ECFs even exhibit a positive correlation trend between elongation and the (100) relative texture coefficient. It can be inferred that enhancing the (100) texture contributes to the improvement of the elongation in ECFs. Moreover, the Schmid factor values for the ( 111), (100), and ( 110) planes are calculated. The results revealed that the number of slip systems that can be activated under different tensile directions of the (100) plane is the largest, while the number of (110) plane is the least. It implies that under equivalent conditions, ECFs with (100) plane orientation are more prone to undergo plastic deformation, thereby facilitating high elongation. In contrast, the (110) plane orientation contributes to a high tensile strength.

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Section: Introductionmentioning

confidence: 99%

Relationship between the Orientation of the (100) Crystal Plane and Elongation in Ultrathin Electrolytic Copper Foils

Fan,

Hu,

et al. 2024

J. Phys. Chem. C

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Grain Boundaries Control Lithiation of Solid Solution Substrates in Lithium Metal Batteries

Aota,

Jung,

Zhang

et al. 2024

Advanced Science

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The development of sustainable transportation and communication systems requires an increase in both energy density and capacity retention of Li‐batteries. Using substrates forming a solid solution with body‐centered cubic Li enhances the cycle stability of anode‐less batteries. However, it remains unclear how the substrate microstructure affects the lithiation behavior. Here, a correlative, near‐atomic scale probing approach is deployed through combined ion‐ and electron‐microscopy to examine the distribution of Li in Li‐Ag diffusion couples as model system mimicking high current densities. It is revealed that Li regions with over 93.8% at.% nucleate within Ag at random high‐angle grain boundaries, whereas grain interiors are not lithiated. The role of kinetics and mechanical constraint from the microstructure over equilibrium thermodynamics in dictating the lithiation process is evidenced. The findings suggest that grain size and grain boundary character are critical to enhance the electrochemical performance of interlayers/electrodes, particularly for improving lithiation kinetics and hence reducing dendrite formation.

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A snapshot review of electric field’s role in crystallization at electrochemical interfaces

Parekh,

Shan,

Sabet

et al. 2024

MRS Advances

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Dendrite growth on metal anodes, which results from uneven crystallization at electrochemical interfaces, has prevented the widespread adoption of metal anode-based batteries. Promising adaptable strategies to control dendrite growth have emerged, which can be categorized into three broad approaches: (a) using textured/patterned or 3D electrodes, (b) enhancing mass transfer, and (c) modifying the electrode–electrolyte interface. While these strategies affect and control different sub-processes that culminate in dendrite growth, they directly or indirectly modify the electric field at the electrode–electrolyte interface. Here, we elucidate the fundamental role of the electric field and offer a few pros and cons of each strategy and their prospects. Graphical abstract

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The Overlooked Role of Copper Surface Texture in Electrodeposition of Lithium Revealed by Electron Backscatter Diffraction

Cited by 3 publications

References 38 publications

Relationship between the Orientation of the (100) Crystal Plane and Elongation in Ultrathin Electrolytic Copper Foils

Relationship between the Orientation of the (100) Crystal Plane and Elongation in Ultrathin Electrolytic Copper Foils

Grain Boundaries Control Lithiation of Solid Solution Substrates in Lithium Metal Batteries

A snapshot review of electric field’s role in crystallization at electrochemical interfaces

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