Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5148908 | Journal of Power Sources | 2017 | 8 Pages |
Abstract
All solid-state micro-supercapacitors (MSC) have emerged as attractive energy-storage units for portable and wearable electronics. Here, we describe a textile-based solid-state MSC via laser scribing of graphene oxide (GO) coatings on a flexible polyethylene terephthalate (PET) fabric. The laser-scribed graphene oxide layers (LGO) possess three-dimensionally porous structure suitable for electrochemical-double-layer formation. To improve the wash fastness and the flexibility of the as-prepared MSCs, glutaraldehyde (GA) was employed to crosslink the GO layers and PVA-gel electrolyte onto the PET fabric. The resultant all solid-state MSCs exhibited excellent flexibility, high areal specific capacitance (756 μF·cmâ2 at 20 mV·sâ1), and good rate capability when subject to bending and laundering. Furthermore, the MSC device showed a high power density of about 1.4 W·cmâ3 and an energy density of 5.3 Ã 10â5 Wh·cmâ3, and retained 98.3% of its initial capacitance after 1000 cycles at a current density of 0.5 mA·cmâ2. This work is the first demonstration of in-plane MSCs on PET fabric surfaces with enhanced durability and flexibility.
Related Topics
Physical Sciences and Engineering
Chemistry
Electrochemistry
Authors
Guixia Wang, Vahid Babaahmadi, Nanfei He, Yixin Liu, Qin Pan, Majid Montazer, Wei Gao,