Peng Maoyu, Liu Zhenjie, Hou Machuan, Zhang Ruochen, Cheng Min, Yu Jiangtao, Feng Yang, Jiao Peixin, Zhang Tongrui, Zhang Ziheng, Chen Xi, Hu Zhe, Zhang Kai
Frontiers Science Center for New Organic Matter, State Key Laboratory of Advanced Chemical Power Sources, Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), College of Chemistry, Nankai University, Tianjin, 300071, P.R. China.
Guangdong Provincial Key Laboratory of Service Safety for New Energy Materials, College of Materials Science and Engineering, Shenzhen University, Shenzhen, 518055, P.R. China.
Angew Chem Int Ed Engl. 2025 Jul;64(29):e202501702. doi: 10.1002/anie.202501702. Epub 2025 Jun 1.
Aqueous zinc metal batteries (AZMBs) are highly regarded for their exceptional safety, low cost, environmental compatibility, and potential as a sustainable alternative to lithium-ion batteries. However, Zn dendrite growth and hydrogen evolution on anode side result in limited lifespan and safety issues. Herein, an organic-inorganic-integrated solid electrolyte interphase (SEI) was in situ formed by adding 4-(trifluoromethyl)-1H-imidazole (TFMI) as an electrolyte additive. The artificial SEI merited higher maximum elastic deformation energy due to relatively high resilience and toughness, which can prevent Zn dendrite penetration and anode self-cracking and pulverization. In addition, N-containing heterocycles in SEI act as a H catcher, thereby inhibiting anode corrosion and hydrogen evolution. As a result, the Zn||Zn symmetric cell has delivered stable cycling performance after 1500 h at 5 mA cm with a terminated capacity of 5 mAh cm. And an outstanding coulombic efficiency of 99.46% at the 2200th cycle was achieved for a Cu||Zn asymmetric cell. Furthermore, a Zn||PANI full battery presented a stable cycling performance with a high-capacity retention of 97.6% after 200 cycles.
水系锌金属电池（AZMBs）因其卓越的安全性、低成本、环境兼容性以及作为锂离子电池可持续替代品的潜力而备受关注。然而，阳极侧的锌枝晶生长和析氢导致电池寿命有限且存在安全问题。在此，通过添加4-（三氟甲基）-1H-咪唑（TFMI）作为电解质添加剂原位形成了一种有机-无机集成固体电解质界面（SEI）。由于具有较高的弹性和韧性，人工SEI具有更高的最大弹性变形能，可防止锌枝晶穿透以及阳极自开裂和粉化。此外，SEI中的含氮杂环充当氢捕获剂，从而抑制阳极腐蚀和析氢。结果，Zn||Zn对称电池在5 mA cm下1500小时后具有稳定的循环性能，终止容量为5 mAh cm。对于Cu||Zn不对称电池，在第2200次循环时实现了99.46%的出色库仑效率。此外，Zn||PANI全电池呈现出稳定的循环性能，在200次循环后具有97.6%的高容量保持率。
