scholarly journals Healable, Flexible Supercapacitors Based on Shape Memory Polymers

2018 ◽  
Vol 8 (10) ◽  
pp. 1732 ◽  
Author(s):  
Huankai Zhou ◽  
Hongsheng Luo ◽  
Xingdong Zhou ◽  
Huaquan Wang ◽  
Yangrong Yao ◽  
...  

Supercapacitors as novel and efficient energy storage devices could provide a higher power density and energy density compared to other electronics and devices. However, traditional supercapacitors are readily damaged, which leads to degraded performance or even failure. To make them more durable and efficient, healable flexible shape memory-based supercapacitors were unprecedentedly explored by a transfer process, in which the conductive nano-carbon networks were decorated with pseudocapacitance materials, followed by embedding them into a shape memory polymer matrix containing healing reagents. The composite exhibited flexibility, supercapacitance and self-healing capability originating from the shape memory effect and healing reagent. The morphologies, thermal, mechanical and capacitive properties, and the self-healability of the composite were investigated. In particular, the influence of the compositions on the healing efficiency was considered. The optimized composite exhibited good capacitance (27.33 mF cm−1), stability (only 4.08% capacitance loss after 1500 cycles) and healable property (up to 93% of the healing efficiency). The findings demonstrated how to endow the flexible polymeric electronics with healable bio-mimetic properties and may greatly benefit the application of intelligent polymers in the field of multi-functional electrical materials.

2021 ◽  
Author(s):  
Xiaoling Tong ◽  
Zhengnan Tian ◽  
Jingyu Sun ◽  
Vincent Tung ◽  
Richard B. Kaner ◽  
...  

2016 ◽  
Vol 7 (47) ◽  
pp. 7278-7286 ◽  
Author(s):  
Jian Zhao ◽  
Rui Xu ◽  
Gaoxing Luo ◽  
Jun Wu ◽  
Hesheng Xia

The poly(siloxane-urethane) elastomers with microphase separation structure and Diels–Alder bonds show high healing efficiency, good mechanical property and good biocompatibility.


2022 ◽  
Vol 23 (2) ◽  
pp. 622
Author(s):  
Fouzia Mashkoor ◽  
Sun Jin Lee ◽  
Hoon Yi ◽  
Seung Man Noh ◽  
Changyoon Jeong

Self-healing materials have been attracting the attention of the scientists over the past few decades because of their effectiveness in detecting damage and their autonomic healing response. Self-healing materials are an evolving and intriguing field of study that could lead to a substantial increase in the lifespan of materials, improve the reliability of materials, increase product safety, and lower product replacement costs. Within the past few years, various autonomic and non-autonomic self-healing systems have been developed using various approaches for a variety of applications. The inclusion of appropriate functionalities into these materials by various chemistries has enhanced their repair mechanisms activated by crack formation. This review article summarizes various self-healing techniques that are currently being explored and the associated chemistries that are involved in the preparation of self-healing composite materials. This paper further surveys the electronic applications of self-healing materials in the fields of energy harvesting devices, energy storage devices, and sensors. We expect this article to provide the reader with a far deeper understanding of self-healing materials and their healing mechanisms in various electronics applications.


2019 ◽  
Vol 10 ◽  
pp. 483-493 ◽  
Author(s):  
Konrad Trzciński ◽  
Mariusz Szkoda ◽  
Andrzej P Nowak ◽  
Marcin Łapiński ◽  
Anna Lisowska-Oleksiak

Composites based on the titania nanotubes were tested in aqueous electrolyte as a potential electrode material for energy storage devices. The nanotubular morphology of TiO2 was obtained by Ti anodization. TiO2 nanotubes were covered by a thin layer of bismuth vanadate using pulsed laser deposition. The formation of the TiO2/BiVO4 junction leads to enhancement of pseudocapacitance in the cathodic potential range. The third component, the conjugated polymer PEDOT:PSS, was electrodeposited from an electrolyte containing the monomer EDOT and NaPSS as a source of counter ions. Each stage of modification and deposition affected the overall capacitance and allowed for an expansion of the potential range of electroactivity. Multiple charge/discharge cycles were performed to characterize the electrochemical stability of the inorganic–organic hybrid electrode. Capacitance values higher than 10 mF·cm−2 were maintained even after 10000 galvanostatic cycles (i c = i a = 0.5 mA·cm−2).


2020 ◽  
Vol 10 (46) ◽  
pp. 2002815
Author(s):  
Lorenzo Mezzomo ◽  
Chiara Ferrara ◽  
Gabriele Brugnetti ◽  
Daniele Callegari ◽  
Eliana Quartarone ◽  
...  

2019 ◽  
Vol 11 (10) ◽  
pp. 10328-10336 ◽  
Author(s):  
Biao Zhang ◽  
Wang Zhang ◽  
Zhiqian Zhang ◽  
Yuan-Fang Zhang ◽  
Hardik Hingorani ◽  
...  

Sign in / Sign up

Export Citation Format

Share Document