阳极
材料科学
集电器
成核
剥离(纤维)
电解质
锂(药物)
电镀(地质)
阴极
无定形固体
化学工程
碳纤维
电流密度
电极
复合材料
化学
工程类
内分泌学
地质学
物理化学
有机化学
物理
复合数
医学
量子力学
地球物理学
作者
André Müller,Luis Paravicini,Jędrzej Morzy,Maximilian Krause,Joel Casella,Nicolas Osenciat,Moritz H. Futscher,Yaroslav E. Romanyuk
标识
DOI:10.1021/acsami.3c14693
摘要
In the concept of anode-free lithium-ion batteries, cells are manufactured with a bare anode current collector where the lithium metal anode is electrochemically formed from the lithium-containing cathode during the first charge cycle. While this concept has many attractive aspects from a manufacturing and energy density standpoint, stable plating and stripping remain challenging. We have investigated gold, platinum, and amorphous carbon as seed layers placed between the copper current collector and the lithium phosphorus oxynitride thin-film solid electrolyte. These layers guide lithium nucleation and improve the plating and stripping dynamics. All seed layers facilitate reversible lithium plating and stripping even at high current densities up to 8 mA cm–2. Of particular note is the amorphous carbon seed layer, which allowed a significant reduction in plating potential from 300 mV to as low as 50 mV. These results underscore the critical role of seed layers in improving the efficiency of anode-free solid-state batteries and open the door to simplified manufacturing of anode-free battery designs.
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