阳极
材料科学
自行车
锂(药物)
金属锂
电极
金属泡沫
化学工程
金属
纳米技术
冶金
化学
物理化学
考古
内分泌学
工程类
历史
医学
作者
Aoxuan Wang,Kaixin Zhang,Linxue Zhang,Qingtao Ma,Shoubin Zhou,Qinhai Jiang,Zhenglin Hu,Jiayan Luo
出处
期刊:Small
[Wiley]
日期:2023-05-04
卷期号:19 (36)
被引量:2
标识
DOI:10.1002/smll.202301166
摘要
Li metal anode has been recognized as the most promising anode for its high theoretical capacity and low reduction potential. But its large-scale commercialization is hampered because of the infinite volume expansion, severe side reactions, and uncontrollable dendrite formation. Herein, the self-supporting porous lithium foam anode is obtained by a melt foaming method. The adjustable interpenetrating pore structure and dense Li3 N protective layer coating on the inner surface enable the lithium foam anode with great tolerance to electrode volume variation, parasitic reaction, and dendritic growth during cycling. Full cell using high areal capacity (4.0 mAh cm-2 ) LiNi0.8Co0.1Mn0.1 (NCM811) cathode with the N/P ratio of 2 and E/C ratio of 3 g Ah-1 can stably operate for 200 times with 80% capacity retention. The corresponding pouch cell has <3% pressure fluctuation per cycle and almost zero pressure accumulation.
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