Zinc based micro‐electrochemical energy storage devices: Present status and future perspective

Abstract

In order to keep rapid pace with increasing demand of wearable and miniature electronics, zinc‐based microelectrochemical energy storage devices (MESDs), as a promising candidate, have gained increasing attention attributed to low cost, environmental benign, and high performance. Herein, this review summarizes the state‐of‐the‐art advances of zinc‐based MESDs in microbatteries (MBs) and microsupercapacitors and highlights merits of cost effectiveness and high performance for miniaturized smart integrated systems. First, an introduction is given to present importance of zinc‐based MESDs. Second, current status with representative fiber, in‐plane and sandwiched configurations are illustrated in detail, particularly with a focus on the reasonable construction of multifunctional MBs and microsupercapacitors and deep understanding of energy storage mechanisms. Then, achievements for smart systems are overviewed to highlight environmental adaptability, integratable properties, and scalability in targeting applications. Finally, critical perspectives and challenges on the synergistic optimization of whole device are discussed to demonstrate forward‐looking developmental directions of zinc‐based MESDs.

Reversibly Stretchable Organohydrogel-Based Soft Electronics with Robust and Redox-Active Interfaces Enabled by Polyphenol-Incorporated Double Networks

“…In addition, TA-gel-supported microsensors integrated with stretchable supercapacitors were demonstrated for multifunctional on-skin applications. Not limited to supercapacitor and strain/UV sensing presented in this work, various polyphenol-incorporated gels based on diverse polymer networks could be further developed to accommodate wearable microbatteries, healable and recyclable electronics, , or self-powered chem/biosensing. , Furthermore, since TA is also a bioactive compound displaying antibacterial and antioxidation properties, our approach could pave a route to soft ionic conductors with integrated physical/chemical/biological functions and spatiotemporal control, , which is anticipated to drive advances in wearable monitoring, “green” ubiquitous electronics or clinical prospects in implanted devices and regenerative medicine.…”

Vertical Graphene Film Enables High-Performance Quasi-Solid-State Planar Zinc-Ion Microbatteries

“…Currently, some new rechargeable metal-ion batteries including Na + , K + , Al 3+ , and Zn 2+ batteries have obtained increasing attention as the alternative energy storage systems for lithium-ion batteries. − Among them, the metallic Zn anode with its intrinsic safety, abundant reserves, high safety, and environmental friendliness has aroused intense research in rechargeable batteries. − Inspired by zinc-ion batteries (ZIBs), zinc-ion microbatteries (ZIMBs) have been reported recently and inherited their advantages . However, ZIMBs face a number of critical challenges in developing high-performance anodes and cathodes similar to ZIBs .…”

Integration of all‐printed zinc ion microbattery and glucose sensor toward onsite quick detections

“…Furthermore, although seldomly reported among various MESDs as the integrated micropower source, ZIMB is extremely competitive for healthcare and medical applications due to its advantages in good biosafety, low cost, high energy density, good cycle stability, and facile for integrations. 20,[31][32][33][34] One characteristic of resistive-type sensors is their significant current variations under working with simple circuit designs and connections with the MESDs. However, to the electrochemical sensors, signals of current variations and others are unusually very weak, making their effective detections a difficult task by using the common circuit designs.…”

“…These progresses realize the successful integration of sensors and MESDs; however, it is noted that the integrable sensors based on these reports mainly belong to resistive‐type sensors, which have limitations in practical situations. Furthermore, although seldomly reported among various MESDs as the integrated micropower source, ZIMB is extremely competitive for healthcare and medical applications due to its advantages in good biosafety, low cost, high energy density, good cycle stability, and facile for integrations 20,31–34 …”