Preparing ultra-thin copper foil as current collector for improving the LIBs performances with reduced carbon footprint

Yang, Lei; Weng, Wei; Zhu, Huanlin; Chi, Xiaopeng; Wen, Tao; Wang, Zhen; Zhong, Shuiping

doi:10.1016/j.mtcomm.2023.105952

Cited by 9 publications

(5 citation statements)

References 44 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…We take the aluminium and copper current collectors to be 1.5 mm thick, again pushing the limits of what is currently achieved. 18,19 These are deliberately optimistic assessments, both to be lenient on the electrolyte requirements, as well as to hopefully account for improvements in battery manufacturing by the time lithium-air batteries become practical. We also add a 50% excess of the stoichiometric amount of lithium to account for loss to the SEI and other lithium sinks.…”

Section: Cell Geometrymentioning

confidence: 99%

Engineering considerations for practical lithium–air electrolytes

Ellison¹,

Grey²

2024

Faraday Discuss.

View full text Add to dashboard Cite

show abstract

Section: Cell Geometrymentioning

confidence: 99%

Engineering considerations for practical lithium–air electrolytes

Ellison¹,

Grey²

2024

Faraday Discuss.

View full text Add to dashboard Cite

show abstract

“…In order to meet the demand of high‐energy cells, there has been a continuous reduction in the thickness of conventional current collectors. By using a combination of additives, the thickness of commercial copper foil (9 μm) has been successfully decreased to 4.5 μm [36] . However, there are size effect problems that the thickness and yield stress of current collectors influence their resistance and elastoplastic behavior [37–39] .…”

Section: Current Collectors In Conventional Lithium Batteriesmentioning

confidence: 99%

“…By using a combination of additives, the thickness of commercial copper foil (9 μm) has been successfully decreased to 4.5 μm. [36] However, there are size effect problems that the thickness and yield stress of current collectors influence their resistance and elastoplastic behavior. [37][38][39] The thinner thickness of the current collector and larger aspect ratio result in larger resistance, which further affects the current distribution and leads to energy and power losses.…”

Section: Current Collectors In Conventional Lithium Batteriesmentioning

confidence: 99%

Developments, Novel Concepts, and Challenges of Current Collectors: From Conventional Lithium Batteries to All‐Solid‐State Batteries

Zhang,

Jing,

Shen

et al. 2024

ChemElectroChem

View full text Add to dashboard Cite

With the innovation and evolution of lithium batteries, different active materials are loaded onto the current collectors, leading to remarkable changes in the components that directly interact with the current collectors. The surface/interface of current collectors in lithium batteries is gradually becoming one of the key factors to improve the overall performance. The thickness, material composition, surface morphology, and intrinsic properties of current collectors are crucial for understanding chemo‐mechanical changes during electrochemical reactions. Despite the widely acknowledged importance of highly efficient electron transportation and improved interfacial performance of current collectors as one of the determinants of exceptional lithium battery performance, insufficient attention has been given to exploring targeted design strategies for current collectors used in various lithium batteries. Particularly, as the development of solid‐state lithium batteries in full swing, there are limited studies focused on current collectors in all‐solid‐state lithium batteries (ASSLBs). This review introduces recent advancements in current collector technology, while highlighting both similarities and differences between negative current collectors applied in conventional lithium batteries and ASSLBs. Furthermore, we propose promising prospects for utilization of alloy materials as next‐generation negative current collectors.

show abstract

“…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

View full text Add to dashboard Cite

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.

show abstract

Preparing ultra-thin copper foil as current collector for improving the LIBs performances with reduced carbon footprint

Cited by 9 publications

References 44 publications

Engineering considerations for practical lithium–air electrolytes

Engineering considerations for practical lithium–air electrolytes

Developments, Novel Concepts, and Challenges of Current Collectors: From Conventional Lithium Batteries to All‐Solid‐State Batteries

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

Contact Info

Product

Resources

About