Hedgehog-inspired nanostructures for hydrogel-based all-solid-state hybrid supercapacitors with excellent flexibility and electrochemical performance

Nanoscale ◽  
2018 ◽  
Vol 10 (40) ◽  
pp. 19004-19013 ◽  
Author(s):  
Pengxiao Sun ◽  
Weidong He ◽  
Hongcen Yang ◽  
Ruya Cao ◽  
Jiangmei Yin ◽  
...  

High-security deformable energy-storage devices that are mechanically robust, with considerable energy and power densities are becoming desirable for smart wearable electronics.

2018 ◽  
Vol 5 (8) ◽  
pp. 1805-1815 ◽  
Author(s):  
Wenda Qiu ◽  
Hongbing Xiao ◽  
Wenting He ◽  
Yu Li ◽  
Yexiang Tong

With the rapid development of portable and wearable electronics, energy storage devices featuring high energy and power densities, long-cycle lifetime, environment friendliness, safe operation, lightweight, ultrathin thickness and flexibilityl have become increasingly important.


2019 ◽  
Vol 7 (2) ◽  
pp. 520-530 ◽  
Author(s):  
Qiulong Li ◽  
Qichong Zhang ◽  
Chenglong Liu ◽  
Juan Sun ◽  
Jiabin Guo ◽  
...  

The fiber-shaped Ni–Fe battery takes advantage of high capacity of hierarchical CoP@Ni(OH)2 NWAs/CNTF core–shell heterostructure and spindle-like α-Fe2O3/CNTF electrodes to yield outstanding electrochemical performance, demonstrating great potential for next-generation portable wearable energy storage devices.


Author(s):  
Xiaoqin Li ◽  
Xiaojuan Chen ◽  
Zhaoyu Jin ◽  
Panpan Li ◽  
Dan Xiao

Conductive polymers endow fiber-shaped electrodes and devices with excellent mechanical and electrochemical performance for energy storage in future wearable electronics.


2019 ◽  
Vol 7 (15) ◽  
pp. 8826-8831 ◽  
Author(s):  
Chengyao Yin ◽  
Xinhua Liu ◽  
Junjie Wei ◽  
Rui Tan ◽  
Jie Zhou ◽  
...  

“All-in-gel” supercapacitor is designed via ionogel composite electrolyte and Bucky gel electrodes. These flexible, conductive and shape-conformable gels represent a step change in the design of safe energy storage devices for wearable electronics, in particular those facing the increased demands of hazardous operational environments.


Author(s):  
Jie Pu ◽  
Qinghe Cao ◽  
Yong Gao ◽  
Jie Yang ◽  
Dongming Cai ◽  
...  

Fiber-shaped zinc-ion hybrid supercapacitors (FZHSCs) by combining of the merits of both SCs and zinc-ion batteries are promising energy storage devices for miniaturized wearable and portable electronics. However, one of...


Author(s):  
Shuo Li ◽  
Ting-Hsiang Chang ◽  
Yang Li ◽  
Meng Ding ◽  
Jie Yang ◽  
...  

Emerging wearable electronics require stretchable energy storage devices to achieve energy autonomy for future commercialization.


2021 ◽  
Vol 7 (3) ◽  
pp. 62
Author(s):  
Paa Kwasi Adusei ◽  
Kevin Johnson ◽  
Sathya N. Kanakaraj ◽  
Guangqi Zhang ◽  
Yanbo Fang ◽  
...  

The development of new flexible and lightweight electronics has increased the demand for compatible energy storage devices to power them. Carbon nanotube (CNT) fibers have long been known for their ability to be assembled into yarns, offering their integration into electronic devices. They are hindered, however, by their low intrinsic energy storage properties. Herein, we report a novel composite yarn, synthesized through solvothermal processes, that attained energy densities in the range between 0.17 µWh/cm2 and 3.06 µWh/cm2, and power densities between 0.26 mW/cm2 and 0.97 mW/cm2, when assembled in a supercapacitor with a PVDF-EMIMBF4 electrolyte. The created unique composition of iron oxalate + iron hydroxide + CNT as an anode worked well in synergy with the much-studied PANI + CNT cathode, resulting in a highly stable yarn energy storage device that maintained 96.76% of its energy density after 4000 cycles. This device showed no observable change in performance under stress/bend tests which makes it a viable candidate for powering wearable electronics.


2020 ◽  
Vol 8 (14) ◽  
pp. 6406-6433 ◽  
Author(s):  
Zhenghui Pan ◽  
Jie Yang ◽  
Yifu Zhang ◽  
Xiaorui Gao ◽  
John Wang

The on-going surge in wearable electronics has inspired ever-increasing rise in requirement for quasi-solid-state fiber-shaped energy storage devices, which possess 1D unique architecture with a tiny volume, and remarkable flexibility.


Author(s):  
Sergey I. Shkuratov ◽  
Jason Baird ◽  
Vladimir G. Antipov ◽  
Christopher S. Lynch ◽  
Shujun Zhang ◽  
...  

The search for ferroelectric materials capable of producing high electric charge and power densities is important for developing a new generation of ultrahigh-power-density ferroelectric energy storage devices and autonomous megawatt power supplies.


2021 ◽  
Vol 9 (36) ◽  
pp. 20356-20361
Author(s):  
Muhammad Boota ◽  
Euiyeon Jung ◽  
Rajeev Ahuja ◽  
Tanveer Hussain

Unlike conventional additives, the use of MXene as a binder improves the electrochemical performance of conducting polymers. The approach is extendable to a large family of poorly conducting organic materials for sustainable energy storage devices.


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