X. Wang, and Z.-S. Wu*
EcoMat, 2020, Accepted.
In order to keep rapid pace with increasing demand of wearable and miniature electronics, zinc based micro-electrochemical energy storage devices, as a promising candidate, have gained increasing attention attributed to low-cost, environmental benign and high performance. Herein, this review summarizes state-of-the-art advances ofzinc based micro-electrochemical energy storage devicesin micro-batteries and micro-supercapacitors, and highlights merits of cost effectiveness and high performance for miniaturized smart integrated systems. First, an introduction is given to present importance ofzinc based micro-electrochemical energy storage devices.Second, current status with representative fiber, in-plane and sandwiched configurations are illustrated in detail,particularly with a focus on the reasonable constructionof multifunctional micro-batteries and micro-supercapacitors 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 ofzinc based micro-electrochemical energy storage devices.