Lithium (Li) dendrite growth seriously hinders the practical application of Li metal batteries. Here, we report molecular amidinothiourea (ATU) as a new electrolyte additive to regulate Li stripping/plating behaviors of Li metal anodes. The molecular ATU in the electrolyte can act as a shielding layer on the Li metal surface to suppress the decomposition of electrolytes as verified by XPS and adsorption energy calculation, which improves the electrochemical reversibility of the Li plating/stripping behaviors and inhibits lithium dendrite growth.

中文翻译：

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脒基硫脲作为无枝晶锂金属负极的新型沉积调节添加剂

锂（Li）枝晶生长严重阻碍了锂金属电池的实际应用。在这里，我们报告了分子脒基硫脲（ATU）作为一种新的电解质添加剂来调节锂金属负极的锂剥离/电镀行为。XPS和吸附能计算证实，电解液中的分子ATU可以作为锂金属表面的屏蔽层，抑制电解液的分解，提高锂电镀/剥离行为的电化学可逆性，抑制锂枝晶生长。