Bringing Hetero-Polyacid-Based Underwater Adhesive as Printable Cathode Coating for Self-Powered Electrochromic Aqueous Batteries
Bringing Hetero-Polyacid-Based Underwater Adhesive as Printable Cathode Coating for Self-Powered Electrochromic Aqueous Batteries
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将杂多酸基水下粘合剂作为自供电电致变色水系电池的可印刷阴极涂层
DOI：
10.1002/adfm.201800599
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发表时间：
2018-06-06
影响因子：
19
通讯作者：
Li, Wen
中科院分区：
文献类型：
--
作者：
Li, Xiaodong;Du, Zhanglei;Li, Wen
电致变色水系电池的出现代表了智能且环保的储能装置发展的一个有前景的趋势。然而，通过简单操作将电致变色、柔性以及图案化特征集成到单个电池单元中仍然是一个巨大的挑战。在此，通过将杂多酸的氧化还原特性和粘合剂的防水结合性能在单一体系中相结合，设计并合成了一类全新的基于杂多酸的水下粘合剂。这种混合水下粘合剂不仅可作为水溶液中的可印刷电极涂层，还提供了独特的电致变色特性，有助于引导自供电电致变色水系电池的便捷制造。还展示了其可逆放电和过氧化氢辅助充电行为。这种对机械变形具有出色耐受性的湿态电致变色粘合剂在开发柔性智能储能结构方面具有很大的前景，它提供了一个用户 - 设备接口平台，使人们能够根据肉眼可见的颜色变化来评估电池的充电状态。
The advent of electrochromic aqueous batteries represents a promising trend in the development of smart and environmentally friendly energy storage devices. However, it remains a great challenge to integrate electrochromic, flexible, and patterned features into a single battery unit through a simple operation. Herein, an entirely new class of hetero-polyacid-based underwater adhesives is designed and synthesized by combining the redox properties of hetero-polyacids and the water-resistant binding of adhesives in single system. The hybrid underwater adhesives not only serve as printable electrode coatings in aqueous solution but also offer unique electrochromic feature for guiding the convenient fabrication of self-powered electrochromic aqueous battery. The reversible discharging and H2O2 assistant charging behavior is also demonstrated. This kind of wet and electrochromic adhesive with excellent toleration of mechanical deformation offers great promise in developing flexible and smart energy storage configuration, which provides a user-device interface platform allowing one to evaluate the battery's charging state based on the naked eye-visible change in color.