Macroscopically uniform and flat lithium thin film formed by electrodeposition using multicomponent additives
Macroscopically uniform and flat lithium thin film formed by electrodeposition using multicomponent additives
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DOI：
10.1016/j.elecom.2022.107238
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发表时间：
2022-03
影响因子：
5.4
通讯作者：
Kazuhiro Fukami;Akihiro Sakurai;Takamitsu Tsujimoto;Masaki Yamagami;A. Kitada;Kota Morimoto;K. Nishioka;Shuji Nakanishi;Yu Yoshikane;Toshimitsu Nagao;J. Katayama;K. Murase
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文献类型：
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作者：
Kazuhiro Fukami;Akihiro Sakurai;Takamitsu Tsujimoto;Masaki Yamagami;A. Kitada;Kota Morimoto;K. Nishioka;Shuji Nakanishi;Yu Yoshikane;Toshimitsu Nagao;J. Katayama;K. Murase
众所周知，锂的电沉积通常导致在电极表面上形成枝晶。这限制了金属锂作为例如可再充电电池的负电极的材料的利用。在水溶液中，在电沉积过程中经常观察到类似的金属枝晶生长;然而，利用多组分添加剂克服了这一缺点。在这里，我们报告说，同时利用四种不同的添加剂大大抑制了在电沉积过程中的四甘醇二甲醚为基础的解决方案的锂枝晶的形成。根据电化学石英晶体微天平测量和X射线光电子能谱的结果，讨论了添加剂的作用。
It is well-known that the electrodeposition of lithium usually results in the formation of dendrites on the electrode surface. This limits the utilization of metallic lithium as a material for, for example, the negative electrodes of rechargeable batteries. In aqueous solutions, similar dendritic growth of metals is often observed during electrodeposition; however, utilization of multicomponent additives has overcome this shortcoming. Here, we report that the simultaneous utilization of four different additives greatly suppresses the formation of lithium dendrites during electrodeposition in a tetraglyme-based solution. The roles of the additives are discussed, based on the results of electrochemical quartz crystal microbalance measurements and X-ray photoelectron spectroscopy.