阳极
材料科学
涂层
纳米技术
自行车
锂(药物)
枝晶(数学)
电化学
多孔性
电极
复合材料
化学
物理化学
医学
几何学
数学
考古
内分泌学
历史
作者
Fu Sun,Dong Zhou,Xin He,Markus Osenberg,Kang Dong,Libao Chen,Shilin Mei,André Hilger,Henning Markötter,Yan Lü,Shanmu Dong,Shashidhara Marathe,Christoph Rau,Xu Hou,Jie Li,Marian Cristian Stan,Martin Winter,Robert Dominko,Ingo Manke
出处
期刊:ACS energy letters
[American Chemical Society]
日期:2019-12-11
卷期号:5 (1): 152-161
被引量:57
标识
DOI:10.1021/acsenergylett.9b02424
摘要
Although a great variety of strategies to suppress Li dendrite have been proposed for lithium metal batteries (LMBs), a deeper understanding of the factors playing a crucial role during extended electrochemical cycling is often lacking. Herein, the morphological reversibility of the Li-based anode for next-generation batteries under three prevalent strategies, i.e., the use of Li–Al alloys, polymer coating, and anodic aluminum oxide (AAO) membrane attachment, has been sophisticatedly investigated by nondestructive visualization. The characterizations clearly capture the unprecedented morphological evolution of the Li-based anode during the electrochemical cycling. Furthermore, the results unambiguously indicate the formation of the “dead” electrochemically generated porous structures regardless of >99% cycling efficiency shown in Li symmetric cells in all three cell configurations. The results presented here shed light on further understanding of the morphological evolution of the Li anode under different scenarios, and it also enlightens us on new research activities that may assist in propelling the commercialization of LMBs.
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