Li2ZnCu3 modified Cu current collector to regulate Li deposition

Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: 64(1)

Published: Sept. 14, 2024

Rationally designing a current collector that can maintain low lithium (Li) porosity and smooth morphology while enduring high-loading Li deposition is crucial for realizing the high energy density of metal batteries, but it still challengeable. Herein,

Language: Английский

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Scalable Copper Current Collectors with Precisely Engineered Lithiophilic Alloy “Skins” for Durable Lithium-Metal Batteries

Energy & Environmental Science, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

A lithiophilic copper-based alloy skin is fabricated on Cu current collectors via scalable ultrafast Joule heating. This enables uniform Li nucleation and dendrite-free growth, significantly improving cycling stability of Li-metal batteries.

Language: Английский

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Quaternary Alloy Interfaces for Stable Zinc Anodes for High‐Performance Aqueous Zinc‐Ion Batteries With Long‐Term Cycling Stability

Small, Journal Year: 2025, Volume and Issue: unknown

Published: May 2, 2025

Abstract Aqueous zinc‐ion batteries (AZIBs) have emerged as a promising energy storage solution owing to their intrinsic safety, low cost, environmental friendliness, and high theoretical specific capacity. However, practical application is hindered by uncontrollable dendrite growth side reactions at the zinc metal anode. To address these challenges, simple cost‐effective electrodeposition strategy proposed construct quaternary Zn‐Cu‐Sn‐Bi alloy artificial interface layer on foil (ZCSB@Zn) anode of AZIBs. Density functional theory (DFT) calculations in situ optical observation confirm that this dense reduces migration barrier weakens hydrogen adsorption, facilitating uniform deposition while effectively suppressing formation. The symmetric ZCSB@Zn cell exhibits extraordinary cycle stability exceeding 8000 h. Furthermore, assembled ZCSB@Zn//CSB‐MnO 2 full demonstrates capacity 199 mAh g −1 1 A , maintaining even under loading 10 mg cm −2 temperature conditions (50 °C). This study presents scalable for constructing layers anodes, highlighting potential AZIB applications.

Language: Английский

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Li2ZnCu3 modified Cu current collector to regulate Li deposition

Angewandte Chemie, Journal Year: 2024, Volume and Issue: 137(1)

Published: Sept. 14, 2024

Abstract Rationally designing a current collector that can maintain low lithium (Li) porosity and smooth morphology while enduring high‐loading Li deposition is crucial for realizing the high energy density of metal batteries, but it still challengeable. Herein, 2 ZnCu 3 alloy‐modified Cu foil reported as stable to fulfill deposition. Benefiting from in situ alloying, generated numerous @Cu heterojunctions induce homogeneous nucleation dense growth even at an ultrahigh capacity 12 mAh cm −2 . Such spatial structure endows overall electrode with manipulated steric hindrance outmost surface electric potential suppress side reactions during stripping plating. The resultant Li||Li asymmetric cell preserves average Coulombic efficiency 99.2 % mA /6 over 200 cycles. Moreover, Li‐Li @Cu||LiFePO 4 maintains cycling stability 87.5 after 300 After coupling LiCoO cathode (4 ), exhibits 407.4 Wh kg −1 remarkable reversibility N/P ratio 3. All these findings present doable way realize high‐capacity, dendrite‐free, high‐performance batteries.

Language: Английский

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Study on the Mechanisms of Lithium Deposition on Different Three-Dimensional Current Collector Substrates

Industrial & Engineering Chemistry Research, Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 22, 2024

Language: Английский

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