Improving Li Plating Behaviors Through Cu-Sn Alloy-Coated Current Collector for Dendrite-Free Lithium Metal Anodes

• 作者: Yifeng Cheng Xi Ke Zhicong Shi
• 来源期刊: 金属学报（英文版）
• 年，卷（期）: 2021,（3）
• 所属期刊栏目: Special Issue:Anode Materials for Rechargeable Batteries
• 页码范围: 354-358
• 页数: 5页
• 语种: 英文

摘要

Alloy anode with good reversibility of lithium plating/stripping and long cycling stability is considered as promising anode materials.Here,Cu-Sn alloy is used as the substrate for Li deposition to induce the most densely packed arrangement of Li atoms,thus presenting high lithiophilicity and improving Li plating behaviors.The LiFePO4-based full cell with the asprepared dendrite-free Li metal anode retained at 85 mAh g-1 with a high coulombic efficiency of 99.5％ after 300 cycles,presenting a capacity retention of 79.4％.This strategy provides a new perspective to structure dendrite-free Li anode for the next-generation high-energy density batteries.