一种由无枝晶锌阳极和可逆钙化/脱钙NASICON阴极实现的先进钙/锌混合电池。
An advanced Ca/Zn hybrid battery enabled by the dendrite-free zinc anode and a reversible calcification/decalcification NASICON cathode.
作者信息
Zhao Shunshun, Li Chuanlin, Zhang Xixi, Li Na, Wang Tongkai, Li Xiaojuan, Wang Chenggang, Qu Guangmeng, Xu Xijin
机构信息
School of Physics and Technology, University of Jinan, Jinan 250022, China; International School for Optoelectronic Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China.
School of Physics and Technology, University of Jinan, Jinan 250022, China.
出版信息
Sci Bull (Beijing). 2023 Jan 15;68(1):56-64. doi: 10.1016/j.scib.2022.12.020. Epub 2022 Dec 23.
The proposal of hybrid ion batteries, which can integrate the advantages of the single ion battery, opens up a new route for developing high-performance secondary batteries. Herein, we successfully constructed an aqueous hybrid battery comprised of polyanionic-type cathode material (NaV(PO), NVP), Zn metal anode, and aqueous Ca/Zn hybrid electrolyte. This exciting combination gives full play to not only the excellent diffusion dynamics of Ca in the NASICON (sodium super ion conductors) structure but also the electrostatic shielding effect of Ca with low reduction potential that inhibits the formation of zinc dendrites. As results, the NVP//Zn Zn/Ca hybrid battery delivers favorable specific capacity with outstanding rate performance (85.3 mAh g capacity at 1 C, 60.5 mAh g capacity at 20 C), and excellent cycle stability (74 % capacity retention after 1300 cycles).
混合离子离子离子电池的提议整合了单离子电池的优点，为高性能二次电池的开发开辟了一条新途径。在此，我们成功构建了一种水系混合电池，其由聚阴离子型正极材料（NaV(PO)，NVP）、锌金属负极和水系Ca/Zn混合电解质组成。这种令人兴奋的组合不仅充分发挥了Ca在NASICON（钠超离子导体）结构中优异的扩散动力学，还发挥了具有低还原电位的Ca的静电屏蔽效应，该效应抑制了锌枝晶的形成。结果，NVP//Zn Zn/Ca混合电池具有良好的比容量和出色的倍率性能（1 C时容量为85.3 mAh g，20 C时容量为60.5 mAh g），以及优异的循环稳定性（1300次循环后容量保持率为74%）。
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