Wen Qing, Fu Hao, Sun Chao, Cui Rude, Chen Hezhang, Ji Ruihan, Tang Linbo, Li Lingjun, Wang Jiexi, Wu Qing, Zhang Jiafeng, Zhang Xiahui, Zheng Junchao
School of Metallurgy and Environment, Central South University, Changsha 410083, China; Engineering Research Center of the Ministry of Education for Advanced Battery Materials, Central South University, Changsha 410083, China; National Energy Metal Resources and New Materials Key Laboratory, Central South University, Changsha 410083, China.
School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan 411201, China.
Sci Bull (Beijing). 2025 Feb 26;70(4):518-528. doi: 10.1016/j.scib.2024.12.017. Epub 2024 Dec 13.
The dendrite and corrosion issues still remain for zinc anodes. Interface modification of anodes has been widely used for stabilizing zinc anodes. However, it is still quite challenging for such modification to simultaneously suppress zinc dendrites and corrosion issues. Herein, we propose a new strategy of buried interface engineering to effectively stabilize Zn anodes, in which a zincophilic Sn layer is buried by a corrosion-resistant ZnS layer (SZS). The buried Sn layer has a strong adsorption energy towards Zn atoms, which accelerates the nucleation of Zn atoms and induces smooth deposition. Meanwhile, the outer ZnS layer protects the newly deposited zinc layer from the corrosion by the electrolyte. As a result, the SZS@Zn symmetric cell demonstrates stable cycling for over 280 h compared to Bare Zn (41 h) at a high current of 10 mA cm and a high areal capacity of 10 mAh cm. Besides, SZS@Zn//MnO full cells also achieve enhanced long-term cycling stability of 63.6% for 1000 cycles at a high rate of 10 C, compared to Bare Zn (47.2%). This work provides a new strategy of buried interface for the rational design of highly stable metal anodes for other metal batteries.
锌阳极的枝晶和腐蚀问题仍然存在。阳极的界面改性已被广泛用于稳定锌阳极。然而，这种改性要同时抑制锌枝晶和腐蚀问题仍然极具挑战性。在此，我们提出一种新的埋入式界面工程策略来有效稳定锌阳极，其中亲锌的锡层被耐腐蚀的硫化锌层（SZS）掩埋。埋入的锡层对锌原子具有很强的吸附能，这加速了锌原子的成核并诱导了平滑沉积。同时，外部的硫化锌层保护新沉积的锌层免受电解液的腐蚀。结果，与裸锌（41小时）相比，SZS@Zn对称电池在10 mA cm的高电流和10 mAh cm的高面积容量下表现出超过280小时的稳定循环。此外，与裸锌（47.2%）相比，SZS@Zn//MnO全电池在10 C的高倍率下1000次循环也实现了63.6%的增强长期循环稳定性。这项工作为合理设计用于其他金属电池的高度稳定金属阳极提供了一种新的埋入式界面策略。
