超级电容器
数码产品
纳米技术
可穿戴技术
材料科学
工艺工程
电极
储能
电气工程
可穿戴计算机
计算机科学
电容
嵌入式系统
工程类
功率(物理)
物理
量子力学
物理化学
化学
作者
Xavier Aeby,Alexandre Poulin,Gilberto Siqueira,Michael Hausmann,Gustav Nyström
标识
DOI:10.1002/adma.202101328
摘要
Abstract With the development of the internet‐of‐things for applications such as wearables and packaging, a new class of electronics is emerging, characterized by the sheer number of forecast units and their short service‐life. Projected to reach 27 billion units in 2021, connected devices are generating an exponentially increasing amount of electronic waste (e‐waste). Fueled by the growing e‐waste problem, the field of sustainable electronics is attracting significant interest. Today, standard energy‐storage technologies such as lithium‐ion or alkaline batteries still power most of smart devices. While they provide good performance, the nonrenewable and toxic materials require dedicated collection and recycling processes. Moreover, their standardized form factor and performance specifications limit the designs of smart devices. Here, exclusively disposable materials are used to fully print nontoxic supercapacitors maintaining a high capacitance of 25.6 F g −1 active material at an operating voltage up to 1.2 V. The presented combination of digital material assembly, stable high‐performance operation, and nontoxicity has the potential to open new avenues within sustainable electronics and applications such as environmental sensing, e‐textiles, and healthcare.
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