材料科学
压电
电解质
阳极
压电系数
化学工程
压力(语言学)
电镀(地质)
电极
模数
复合材料
语言学
化学
哲学
物理化学
地球物理学
工程类
地质学
作者
Qing Ni,Yu Ding,Chengzhi Wang,Shaoyuan Bai,Kaiming Zhu,Yongjie Zhao,Lai Chen,Ning Li,Jingbo Li,Yuefeng Su,Haibo Jin
标识
DOI:10.1002/adma.202309298
摘要
Abstract Solid‐state sodium (Na) batteries (SSNBs) hold great promise but suffer from several major issues, such as high interfacial resistance at the solid electrolyte/electrode interface and Na metal dendrite growth. To address these issues, a piezoelectric interlayer design for an Na 3 Zr 2 Si 2 PO 12 (NZSP) solid electrolyte is proposed herein. Two typical piezoelectric films, AlN and ZnO, coated onto NZSP function as interlayers designed to generate a local stress‐induced field for alleviating interfacial charge aggregation coupling stress concentration and promoting uniform Na plating. The results reveal that the interlayer (ZnO) with matched modulus, high Na‐adhesion, and sufficient piezoelectricity can provide a favorable interphase. Low interfacial resistances of 91 and 239 Ω cm 2 are achieved for the ZnO layer at 30 and 0 °C, respectively, which are notably lower than those for bare NZSP. Moreover, steady Na plating/stripping cycles are rendered over 850 and 4900 h at 0 and 30 °C, respectively. The superior anodic performance is further manifested in an Na 2 MnFe(CN) 6 ‐based full cell which delivers discharge capacities of 125 mA h g −1 over 1600 cycles at 30 °C and 90 mA h g −1 over 500 cycles at 0 °C. A new interlayer‐design insight is clearly demonstrated for SSNBs breaking low‐temperature limits.
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