Boosting Zn||I_(2) Battery’s Performance by Coating a Zeolite‑Based Cation‑Exchange Protecting Layer

作     者：Wenshuo Shang Qiang Li Fuyi Jiang Bingkun Huang Jisheng Song Shan Yun Xuan Liu Hideo Kimura Jianjun Liu Litao Kang Wenshuo Shang;Qiang Li;Fuyi Jiang;Bingkun Huang;Jisheng Song;Shan Yun;Xuan Liu;Hideo Kimura;Jianjun Liu;Litao Kang

作者机构：College of Environment and Materials EngineeringYantai UniversityYantai 264005People’s Republic of China State Key Laboratory of High‑Performance Ceramics and Superfine MicrostructureShanghai Institute of CeramicsChinese Academy of SciencesShanghai 200050People’s Republic of China Key Laboratory for Palygorskite Science and Applied Technology of Jiangsu ProvinceHuaiyin Institute of TechnologyHuai’an 223003People’s Republic of China 

出 版 物：《Nano-Micro Letters》 (纳微快报（英文版）)

年 卷 期：2022年第14卷第5期

页      面：168-180页

核心收录：

学科分类：0808[工学-电气工程] 08[工学] 

基　　金：The authors thank the National Natural Science Foundation of China(51502194,22133005,21973107,and 22103093) the Natural Science Foundation of Shandong(ZR2020ME024) the Science and Technology Commission of Shanghai Municipality(21ZR1472900) the Key Laboratory for Palygorskite Science and Applied Technology of Jiangsu Province(HPK202103)for financial support Open access funding provided by Shanghai Jiao Tong University 

主　　题：Zeolite Protecting layer Zn-I_(2)aqueous battery Shuttle Parasitic reactions 

摘      要：The intrinsically safe Zn||I_(2) battery,one of the leading candidates aiming to replace traditional Pb-acid batteries,is still seriously suffering from short shelf and cycling lifespan,due to the uncontrolled I_(3)^(−)-shuttling and dynamic parasitic reactions on Zn *** the fact that almost all these detrimental processes terminate on the surfaces of Zn anodes,modifying Zn anodes’surface with protecting layers should be one of the most straightforward and thorough approaches to restrain these ***,a facile zeolite-based cation-exchange protecting layer is designed to comprehensively suppress the unfavored parasitic reactions on the Zn *** negatively-charged cavities in the zeolite lattice provide highly accessible migration channels for Zn^(2+),while blocking anions and electrolyte from passing *** low-cost cation-exchange protecting layer can simultaneously suppress self-discharge,anode corrosion/passivation,and Zn dendrite growth,awarding the Zn||I_(2) batteries with ultra-long cycle life(91.92%capacity retention after 5600 cycles at 2 A g^(−1)),high coulombic efficiencies(99.76%in average)and large capacity(203–196 mAh g^(−1) at 0.2 A g^(−1)).This work provides a highly affordable approach for the construction of high-performance Zn-I_(2) aqueous batteries.