Micro‐Supercapacitors: Stamping Fabrication of Flexible Planar Micro‐Supercapacitors Using Porous Graphene Inks (Adv. Sci. 19/2020)

Li, Fēi; Qu, Jiang; Li, Yang; Wang, Jinhui; Zhu, Minshen; Liu, Lixiang; Ge, Jianhua; Duan, Shengkai; Li, Tianming; Bandari, Vineeth Kumar; Huang, Ming; Zhu, Feng; Schmidt, Oliver G.

doi:10.1002/advs.202070105

Cited by 15 publications

(11 citation statements)

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“…For devices requiring frequent monitoring and data transmission like neural recording and radio frequency identification (RFID), the power consumption of a submillimeter device can still reach 100 µW. [ 3,35–41 ] Energy density (<10 mAh cm −2 ) achieved so far with microbatteries cannot allow any microsystem to operate for a long term. As such, microbatteries need recharging mechanisms.…”

Section: Where and How To Use Microbatteriesmentioning

confidence: 99%

Zn Microbatteries Explore Ways for Integrations in Intelligent Systems

Quhe

Zhang

et al. 2023

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As intelligent microsystems develop, many revolutionary applications, such as the swallowing surgeon proposed by Richard Feynman, are about to evolve. Nonetheless, integrable energy storage satisfying the demand for autonomous operations has emerged as a major obstacle to the deployment of intelligent microsystems. A reason for the lagging development of integrable batteries is the challenge of miniaturization through microfabrication procedures. Lithium batteries, generated by the most successful battery chemistry, are not stable in the air, thus creating major manufacturing challenges. Other cations (Na+, Mg2+, Al3+, K+) are still in the early stages of development. In contrast, the superior stability of zinc batteries in the air brings high compatibility to microfabrication protocols and has already demonstrated excellent practicability in full‐sized devices. To obtain energy‐dense and high‐power zinc microbatteries within square‐millimeter or smaller footprints, sandwich, pillar, and Swiss‐roll configurations are developed. Thin interdigital and fiber microbatteries find their applications being integrated into wearable devices and electronic skin. It is foreseeable that zinc microbatteries will find their way into highly integrated microsystems unlocking their full potential for autonomous operation. This review summarizes the material development, configuration innovation, and application‐oriented integration of zinc microbatteries.

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Section: Where and How To Use Microbatteriesmentioning

confidence: 99%

Zn Microbatteries Explore Ways for Integrations in Intelligent Systems

Quhe

Zhang

et al. 2023

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“…[60,64,67] When replacing the liquid electrolytes with ion-conducting SSEs, the corresponding EES devices are solid-state, i.e., solidstate supercapacitors and solid-state batteries. One typical example of solid-state supercapacitors is provided by Li et al They applied a cost-effective stamping strategy to develop scalable micro-supercapacitors (MSCs), [68] as shown in Figure 2e. The porous graphene ink was stamped onto arbitrary substrates (such as flexible leaf and cellulose paper) to form symmetric MSCs in which solid PVA/KOH electrolyte was employed to seal the patterned graphene electrodes.…”

Section: Energy Storage: Supercapacitors Batteries and Fuel Cellsmentioning

confidence: 99%

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confidence: 99%

Solid‐State Iontronic Devices: Mechanisms and Applications

Xiao

2022

Adv Materials Technologies

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Devices". [4] This book reviewed ion-electron-coupled organic electronics, which dealt only with organic semiconductor devices, including field-effect transistors (FETs), light-emitting devices, sensors, and actuators. However, iontronics cannot be limited to the research field of organic electronics, while it should be much broader and more general.In broad terms, iontronics should be a concept that exploits the properties of both mobile ions and electrons. It is a newly emerging interdisciplinary concept that studies the science and technology of electronic-ionic coupled properties/ functions, covering electrochemistry, solid-state physics, electronic engineering, and biological sciences. [5][6][7][8][9][10] In contrast, electronics and ionics focus more on studying the behavior of electrons and ions, respectively, rather than the coupling of electrons and ions. The most significant impact of iontronics is that iontronic devices enable us to realize new functions and properties, which are extremely difficult or even impossible in conventional electronic or ionic devices, for example, ion gate-induced superconductivity [11] or seamless communication devices between humans and artificial machines. [12] Previous references have well summarized the hydrogel iontronics, [13] bioinspired iontronics, [14] iontronic sensing, [15] solid-state nanopore-based iontronics, [16] and the applications of iontronics in physical aspect. [17] In this review, we will focus on ion-involved solid-state electrochemistry iontronic devices.The fantastic role of ions in solid-state iontronic devices attracts our special attention because of the new functions and properties introduced by ions. Nowadays, the most intensively developed application of iontronics is energy storage in supercapacitors and batteries, which depends on the ionic-electronic coupling at the electrode materials' surface via the capacitive or Faradaic process. [18][19][20] In fact, this ion storage process also contributes to the swelling-induced electrochemical actuators, [21] optical absorbance changes in electrochromic cells, [22] and conductivity modulation in electrolyte-based transistors. [23] In addition, the accumulation of ions near the electrode surface could create a dynamic p-n junction where the electrons and holes recombine radiatively (i.e., light-emitting electrochemical cells), [24] or modify the Schottky barrier as well as the charge carrier injection (i.e., interface-type memristor). [25] Another prototypical ion-involved electronic device is the filament-type memristor, in which the active metal atoms are oxidized into mobile ions and then reduced into the metallic filament(s) that bridge the two electrodes, thereby switching the memristor from OFF-state to ON-state. [26] The tiny multifunctional ions Iontronics is a newly emerging interdisciplinary concept that studies the science and technology of electronic-ionic coupled properties/functions, endowing the devices with new functions and properties by coupling the advantages of electrons and ions...

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Section: Nanoengineered Interfaces Based On Flat Carbonsmentioning

confidence: 99%

“…Another novel technology based on the use of porous graphene inks for the production of efficient flexible supercapacitors by stamping was recently reported. [ 117 ] One of the main obstacles in the translation of lab scale fabrication based on photolithography to commercial scale is the complexity of applying layers of photoresists, masks, and etchants that may be both expensive and toxic to human health. To overcome this challenge, and reduce the complexity and cost of the preparation of graphene‐based planar flexible micro‐supercapacitors, the authors used a combination of stamps to apply highly conductive graphene inks onto the surface, being able to quickly assemble complex micro‐supercapacitors on a variety of substrate types with a high degree of control over their final structure.…”

Section: Nanoengineered Interfaces Based On Flat Carbonsmentioning

confidence: 99%