Yao Minjie, Yuan Zishun, Li Saisai, He Tingwei, Wang Rui, Yuan Mingjian, Niu Zhiqiang
Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Renewable Energy Conversion and Storage Center, College of Chemistry, Nankai University, Tianjin, 300071, P. R. China.
Adv Mater. 2021 Mar;33(10):e2008140. doi: 10.1002/adma.202008140. Epub 2021 Feb 2.
Aqueous zinc-ion batteries (ZIBs) are considered to be a promising candidate for flexible energy storage devices due to their high safety and low cost. However, the scalable assembly of flexible ZIBs is still a challenge. Here, a scalable assembly strategy is developed to fabricate flexible ZIBs with an ultrathin all-in-one structure by combining blade coating with a rolling assembly process. Such a unique all-in-one integrated structure can effectively avoid the relative displacement or detachment between neighboring components to ensure continuous and effective ion- and/or loading-transfer capacity under external deformation, resulting in excellent structural and electrochemical stability. Furthermore, the ultrathin all-in-one ZIBs can be tailored and edited controllably into desired shapes and structures, further extending their editable, stretchable, and shape-customized functions. In addition, the ultrathin all-in-one ZIBs display the ability to integrate with perovskite solar cells to achieve an energy harvesting and storage integrated system. These enlighten a broad area of flexible ZIBs to be compatible with highly flexible and wearable electronics. The scaling-up assembly strategy provides a route to design other ultrathin all-in-one energy storage devices with stretchable, editable, and customizable behaviors.
水系锌离子电池（ZIBs）因其高安全性和低成本，被认为是柔性储能设备的一个有前途的候选者。然而，柔性ZIBs的可扩展组装仍然是一个挑战。在此，通过将刮刀涂布与滚动组装工艺相结合，开发了一种可扩展的组装策略，以制造具有超薄一体化结构的柔性ZIBs。这种独特的一体化集成结构可以有效避免相邻组件之间的相对位移或分离，以确保在外部变形下具有连续且有效的离子和/或载流子传输能力，从而实现优异的结构和电化学稳定性。此外，超薄一体化ZIBs可以可控地定制和编辑成所需的形状和结构，进一步扩展其可编辑、可拉伸和形状定制功能。此外，超薄一体化ZIBs显示出与钙钛矿太阳能电池集成以实现能量收集和存储集成系统的能力。这些为柔性ZIBs与高度柔性和可穿戴电子设备兼容开辟了广阔领域。这种放大组装策略为设计其他具有可拉伸、可编辑和可定制行为的超薄一体化储能设备提供了一条途径。
