scholarly journals A Review of Fabrication Technologies for Carbon Electrode-Based Micro-Supercapacitors

2022 ◽  
Vol 12 (2) ◽  
pp. 862
Author(s):  
Veerle Vandeginste
Keyword(s):  
Mechanical Properties ◽  
Solid State ◽  
Electrode Materials ◽  
Carbon Electrode ◽  
High Power Density ◽  
Wearable Electronics ◽  
Different Types ◽  
Recent Developments ◽  
Carbide Derived Carbon ◽  
Fast Evolution

The very fast evolution in wearable electronics drives the need for energy storage micro-devices, which have to be flexible. Micro-supercapacitors are of high interest because of their high power density, long cycle lifetime and fast charge and discharge. Recent developments on micro-supercapacitors focus on improving the energy density, overall electrochemical performance, and mechanical properties. In this review, the different types of micro-supercapacitors and configurations are briefly introduced. Then, the advances in carbon electrode materials are presented, including activated carbon, carbon nanotubes, graphene, onion-like carbon, and carbide-derived carbon. The different types of electrolytes used in studies on micro-supercapacitors are also treated, including aqueous, organic, ionic liquid, solid-state, and quasi-solid-state electrolytes. Furthermore, the latest developments in fabrication techniques for micro-supercapacitors, such as different deposition, coating, etching, and printing technologies, are discussed in this review on carbon electrode-based micro-supercapacitors.

scholarly journals Flexible, Transparent and Highly Conductive Polymer Film Electrodes for All-Solid-State Transparent Supercapacitor Applications

Membranes ◽  
2021 ◽  
Vol 11 (10) ◽  
pp. 788
Author(s):  
Xin Guan ◽  
Lujun Pan ◽  
Zeng Fan
Keyword(s):  
Energy Storage ◽  
Solid State ◽  
Electrochemical Properties ◽  
Polymer Film ◽  
High Performance ◽  
Electrode Materials ◽  
Wearable Electronics ◽  
Energy Storage Devices ◽  
Active Electrode ◽  
Supercapacitor Applications

Lightweight energy storage devices with high mechanical flexibility, superior electrochemical properties and good optical transparency are highly desired for next-generation smart wearable electronics. The development of high-performance flexible and transparent electrodes for supercapacitor applications is thus attracting great attention. In this work, we successfully developed flexible, transparent and highly conductive film electrodes based on a conducting polymer, poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS). The PEDOT:PSS film electrodes were prepared via a simple spin-coating approach followed by a post-treatment with a salt solution. After treatment, the film electrodes achieved a high areal specific capacitance (3.92 mF/cm2 at 1 mA/cm2) and long cycling lifetime (capacitance retention >90% after 3000 cycles) with high transmittance (>60% at 550 nm). Owing to their good optoelectronic and electrochemical properties, the as-assembled all-solid-state device for which the PEDOT:PSS film electrodes were utilized as both the active electrode materials and current collectors also exhibited superior energy storage performance over other PEDOT-based flexible and transparent symmetric supercapacitors in the literature. This work provides an effective approach for producing high-performance, flexible and transparent polymer electrodes for supercapacitor applications. The as-obtained polymer film electrodes can also be highly promising for future flexible transparent portable electronics.

scholarly journals Review—Metal-Organic Framework-Based Supercapacitors

2022 ◽  
Author(s):  
Zhengyun Wang ◽  
Yanyu Zhong ◽  
Nan Chenhui Wei ◽  
Lipei Jiang ◽  
Hongfang Liu
Keyword(s):  
Electrode Materials ◽  
Metal Organic Framework ◽  
High Power Density ◽  
Future Prospects ◽  
Energy Storage Devices ◽  
Successful Operation ◽  
Storage Devices ◽  
Long Cycle Life ◽  
Recent Developments ◽  
Metal Organic

Abstract Supercapacitors as a class of energy storage devices possess high power density, outstanding reversibility and long cycle life. The development of innovative electrode materials and unconventional configurations determine the successful operation of supercapacitors. Owing to controllable porous structure and unique electrochemical behavior, great efforts have been devoted to designing and fabricating innovative metal-organic frameworks (MOFs) based supercapacitors. In this review, recent developments in MOFs related supercapacitors electrodes are summarized. Furthermore, the advances in MOFs composites for supercapactiors application including pristine MOFs, MOFs composites and MOFs-derived composites are systematically discussed by integrating charge storing principle. Finally, future prospects and opportunities in the design of MOFs related electrodes are also delineated.

scholarly journals Nitrogen-doped reduced graphene oxide intertwined with V2O3 nanoflakes as self-supported electrodes for flexible all-solid-state supercapacitors

RSC Advances ◽  
2017 ◽  
Vol 7 (41) ◽  
pp. 25732-25739 ◽  
Author(s):  
Z. Q. Hou ◽  
Z. Y. Wang ◽  
L. X. Yang ◽  
Z. G. Yang
Keyword(s):  
Graphene Oxide ◽  
Solid State ◽  
Reduced Graphene Oxide ◽  
Power Density ◽  
High Power ◽  
High Power Density ◽  
Wearable Electronics ◽  
Nitrogen Doped ◽  
Reduced Graphene ◽  
Potential Applications

Flexible all-solid-state supercapacitors (SCs) have great potential applications in flexible and wearable electronics because of their safety, high power density, flexibility, and portability.

Rational Design of Quasi Zero-Strain NCM Cathode Materials for Minimizing Volume Change Effects in All-Solid-State Batteries

2019 ◽  
Author(s):  
Florian Strauss ◽  
Lea de Biasi ◽  
A-Young Kim ◽  
Jonas Hertle ◽  
Simon Schweidler ◽  
...  
Keyword(s):  
Solid State ◽  
Solid Electrolyte ◽  
Cathode Materials ◽  
Rational Design ◽  
Electrode Materials ◽  
Cycling Performance ◽  
Mechanical Degradation ◽  
Volume Changes ◽  
Solid State Batteries ◽  
All Solid State Batteries

Measures to improve the cycling performance and stability of bulk-type all-solid-state batteries (SSBs) are currently being developed with the goal of substituting conventional Li-ion battery (LIB) technology. As known from liquid electrolyte based LIBs, layered oxide cathode materials undergo volume changes upon (de)lithiation, causing mechanical degradation due to particle fracture, among others. Unlike solid electrolytes, liquid electrolytes are somewhat capable of accommodating morphological changes. In SSBs, the rigidity of the materials used typically leads to adverse contact loss at the interfaces of cathode material and solid electrolyte during cycling. Hence, designing zero- or low-strain electrode materials for application in next-generation SSBs is desirable. In the present work, we report on novel Co-rich NCMs, NCM361 (60% Co) and NCM271 (70% Co), showing minor volume changes up to 4.5 V vs Li<sup>+</sup>/Li, as determined by <i>operando</i> X-ray diffraction and pressure measurements of LIB pouch and pelletized SSB cells, respectively. Both cathode materials exhibit good cycling performance when incorporated into SSB cells using argyrodite Li<sub>6</sub>PS<sub>5</sub>Cl solid electrolyte, albeit their morphology and secondary particle size have not yet been optimized.

Rational Design of Quasi Zero-Strain NCM Cathode Materials for Minimizing Volume Change Effects in All-Solid-State Batteries

2019 ◽  
Author(s):  
Florian Strauss ◽  
Lea de Biasi ◽  
A-Young Kim ◽  
Jonas Hertle ◽  
Simon Schweidler ◽  
...  
Keyword(s):  
Solid State ◽  
Solid Electrolyte ◽  
Cathode Materials ◽  
Rational Design ◽  
Electrode Materials ◽  
Cycling Performance ◽  
Mechanical Degradation ◽  
Volume Changes ◽  
Solid State Batteries ◽  
All Solid State Batteries

Measures to improve the cycling performance and stability of bulk-type all-solid-state batteries (SSBs) are currently being developed with the goal of substituting conventional Li-ion battery (LIB) technology. As known from liquid electrolyte based LIBs, layered oxide cathode materials undergo volume changes upon (de)lithiation, causing mechanical degradation due to particle fracture, among others. Unlike solid electrolytes, liquid electrolytes are somewhat capable of accommodating morphological changes. In SSBs, the rigidity of the materials used typically leads to adverse contact loss at the interfaces of cathode material and solid electrolyte during cycling. Hence, designing zero- or low-strain electrode materials for application in next-generation SSBs is desirable. In the present work, we report on novel Co-rich NCMs, NCM361 (60% Co) and NCM271 (70% Co), showing minor volume changes up to 4.5 V vs Li<sup>+</sup>/Li, as determined by <i>operando</i> X-ray diffraction and pressure measurements of LIB pouch and pelletized SSB cells, respectively. Both cathode materials exhibit good cycling performance when incorporated into SSB cells using argyrodite Li<sub>6</sub>PS<sub>5</sub>Cl solid electrolyte, albeit their morphology and secondary particle size have not yet been optimized.

Morphological and Electrochemical Properties of the Lactose-derived Carbon Electrode Materials

2016 ◽  
Vol 8 (3) ◽  
pp. 03017-1-03017-7 ◽  
Author(s):  
I. F. Myronyuk ◽  
◽  
V. I. Mandzyuk ◽  
V. M. Sachko ◽  
R. P. Lisovsky ◽  
...  
Keyword(s):  
Electrochemical Properties ◽  
Electrode Materials ◽  
Carbon Electrode
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