Development of an in situ polymerized artificial layer for dendrite‐free and stable lithium metal batteries
Junquan Lai, Rui Tan, Huai Jiang, Xinjing Huang, Zhongliang Tian, Bo Hong, Mengran Wang, Jie Li
Abstract
Abstract Severe lithium dendrite issues bring a significant challenge for the practical application of Li metal anodes. In this study, a scalable spray‐coating method is used to in situ construct an organic/inorganic composite interfacial layer including Li‐Zn alloy and lithium polyacrylate on the surface of lithium metal. The Li‐Zn alloy exhibits favorable lithiophilic and high Li + diffusion coefficient, whereas highly elastic lithium polyacrylate is a Li + conductor and provides excellent mechanical properties. Finally, the ZA‐Li||ZA‐Li cell shows stable cycling for over 1800 h with 1 mA cm −2 at 2 h per cycle, which demonstrates a pronounced inhibition of lithium dendrite growth. Based on the above merits, this work would open a new avenue to develop advanced artificial interfacial layer with multiple capabilities for high‐performance lithium metal batteries.