scholarly journals Quasi-solid-state highly stretchable circular knitted MnO2@CNT supercapacitor

RSC Advances ◽  
2020 ◽  
Vol 10 (24) ◽  
pp. 14007-14012 ◽  
Author(s):  
Taegyu Park ◽  
Yongwoo Jang ◽  
Jong Woo Park ◽  
Hyunsoo Kim ◽  
Seon Jeong Kim
Keyword(s):  
Solid State ◽  
High Performance ◽  
Mechanical Stability ◽  
Wearable Electronics ◽  
Highly Stretchable

Flexible and stretchable double-walled circular knitted MnO2@CNT supercapacitors shows high performance, electrochemical and mechanical stability and can be used for wearable electronics.

scholarly journals Direct coherent multi-ink printing of fabric supercapacitors

2021 ◽  
Vol 7 (3) ◽  
pp. eabd6978 ◽  
Author(s):  
Jingxin Zhao ◽  
Hongyu Lu ◽  
Yan Zhang ◽  
Shixiong Yu ◽  
Oleksandr I. Malyi ◽  
...  
Keyword(s):  
System Integration ◽  
High Performance ◽  
Mechanical Stability ◽  
Three Dimensional ◽  
High Mass ◽  
Wearable Electronics ◽  
Energy Storage Devices ◽  
Fabrication Procedure ◽  
Self Powered ◽  
Mechanical Devices

Coaxial fiber-shaped supercapacitors with short charge carrier diffusion paths are highly desirable as high-performance energy storage devices for wearable electronics. However, the traditional approaches based on the multistep fabrication processes for constructing the fiber-shaped energy device still encounter persistent restrictions in fabrication procedure, scalability, and mechanical durability. To overcome this critical challenge, an all-in-one coaxial fiber-shaped asymmetric supercapacitor (FASC) device is realized by a direct coherent multi-ink writing three-dimensional printing technology via designing the internal structure of the coaxial needles and regulating the rheological property and the feed rates of the multi-ink. Benefitting from the compact coaxial structure, the FASC device delivers a superior areal energy/power density at a high mass loading, and outstanding mechanical stability. As a conceptual exhibition for system integration, the FASC device is integrated with mechanical units and pressure sensor to realize high-performance self-powered mechanical devices and monitoring systems, respectively.

scholarly journals In Situ Growth of a High-Performance All-Solid-State Electrode for Flexible Supercapacitors Based on a PANI/CNT/EVA Composite

Polymers ◽  
2019 ◽  
Vol 11 (1) ◽  
pp. 178 ◽  
Author(s):  
Xipeng Guan ◽  
Debin Kong ◽  
Qin Huang ◽  
Lin Cao ◽  
Peng Zhang ◽  
...  
Keyword(s):  
Solid State ◽  
Power Density ◽  
High Performance ◽  
High Capacity ◽  
Wearable Electronics ◽  
In Situ Growth ◽  
Growth Method ◽  
Poly Ethylene ◽  
Areal Capacity

For the development of light, flexible, and wearable electronic devices, it is crucial to develop energy storage components combining high capacity and flexibility. Herein, an all-solid-state supercapacitor is prepared through an in situ growth method. The electrode contains polyaniline deposited on a carbon nanotube and a poly (ethylene-co-vinyl acetate) film. The hybrid electrode exhibits excellent mechanical and electrochemical performance. The optimized few-layer polyaniline wrapping layer provides a conductive network that effectively enhances the cycling stability, as 66.4% of the starting capacitance is maintained after 3000 charge/discharge cycles. Furthermore, the polyaniline (PANI)-50 displays the highest areal energy density of 83.6 mWh·cm−2, with an areal power density of 1000 mW·cm−2, and a high areal capacity of 620 mF cm−2. The assembled device delivers a high areal capacity (192.3 mF·cm−2) at the current density of 0.1 mA·cm−2, a high areal energy (26.7 mWh·cm−2) at the power density of 100 mW·cm−2, and shows no significant decrease in the performance with a bending angle of 180°. This unique flexible supercapacitor thus exhibits great potential for wearable electronics.

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 Highly Stretchable and Conductive Hybrid Fibers for High-performance Fibrous Electrodes and All-solid-state Supercapacitors

2020 ◽  
Vol 38 (5) ◽  
pp. 531-539 ◽  
Author(s):  
Gui-Qing Wu ◽  
Xin-Yu Yang ◽  
Jia-Hui Li ◽  
Nan Sheng ◽  
Cheng-Yi Hou ◽  
...  
Keyword(s):  
Solid State ◽  
High Performance ◽  
Hybrid Fibers ◽  
Highly Stretchable

Highly stretchable strain sensors with reduced graphene oxide sensing liquids for wearable electronics

Nanoscale ◽  
2018 ◽  
Vol 10 (11) ◽  
pp. 5264-5271 ◽  
Author(s):  
Minxuan Xu ◽  
Junjie Qi ◽  
Feng Li ◽  
Yue Zhang
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Elastic Strain ◽  
High Performance ◽  
Tensile Deformation ◽  
Strain Sensors ◽  
Wearable Electronics ◽  
Reduced Graphene ◽  
Highly Stretchable

Super-elastic strain sensors based on rGO/DI feature impressively high performance and can distinguish between compressive and tensile deformation.

Layered Heterostructure Ionogel Electrolytes for High‐Performance Solid‐State Lithium‐Ion Batteries

2021 ◽  
pp. 2007864
Author(s):  
Woo Jin Hyun ◽  
Cory M. Thomas ◽  
Norman S. Luu ◽  
Mark C. Hersam
Keyword(s):  
Solid State ◽  
Lithium Ion Batteries ◽  
High Performance ◽  
Lithium Ion
Sign in / Sign up

Export Citation Format

Share Document