过电位
阳极
材料科学
锂(药物)
镍
枝晶(数学)
金属锂
过渡金属
电镀(地质)
金属
电化学
纳米技术
化学工程
沉积(地质)
冶金
电极
化学
数学
物理化学
地球物理学
内分泌学
工程类
生物
古生物学
生物化学
几何学
催化作用
医学
沉积物
地质学
作者
Wanxing Zhang,Jiajun Wang,Hong Zhang,Qiujiang Dong,Shiyu Zhang,Bin Sun,Zanyu Chen,Huajun Guo,Xiaopeng Han,Yida Deng,Wenbin Hu
标识
DOI:10.1002/sstr.202300358
摘要
Developing high‐performance anode current collectors with three‐dimensional structure and lithiophilic layers is of great importance to further advance the application of lithium metal batteries. However, relatively few research has focused on the transition of substrate and the intrinsic structure stability after electrodeposition of lithium on substrates, which leads to an incomplete understanding of the behavior of lithium deposition. Herein, a lithium metal anodes host with a highly stable and 3D structure has been effectively produced through in situ development of nanoflake arrays embedded with Co 3 O 4 obtained from ZIF on nickel foams (Co 3 O 4 ‐NF). And the actual lithium deposition sites and lithium deposition process on Co 3 O 4 ‐NF are elucidated via a combination of characterization techniques and electrochemical analytical methods. Consequently, the resulting Co 3 O 4 ‐NF@Li anodes could effectively inhibit lithium dendrite formation and mitigate volume expansion, demonstrating a significantly extended and consistent lifespan of 800 cycles (1600 h) at 1 mA cm −2 with low overpotential and insignificant voltage fluctuation for the process of lithium stripping and plating in symmetric cells. Herein, it is aimed to examine the transitions of metal oxides as a lithiophilic site for the lithium metal anode. It offers novel perspectives and approaches for the design of dendrite‐free lithium metal anodes.
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