Super stretchable capacitor

Are stretchable and flexible supercapacitors the future of energy storage?

Given the rise in the popularity of wearable electronics that are able to deform into desirable configurations while maintaining electrochemical functionality, stretchable and flexible (hybrid) supercapacitors (SCs) have become increasingly of interest as innovative energy storage devices.

What is a stretchable supercapacitor?

In conventional intrinsically stretchable supercapacitors, the typical architecture consists of high-modulus functional layers deposited onto elastic substrates. Under small strains, these devices often maintain functionality despite localized stress concentrations and microcrack formation in the functional layers.

Are intrinsically stretchable supercapacitors effective?

Second, reduced conductivity under high tensile strain, compromising overall device performance. These challenges make intrinsically stretchable supercapacitors difficult to realize, and the reported performance of such intrinsically stretchable SCs remains suboptimal.

What is the capacitance retention of flexible supercapacitor?

The real specific capacitance of flexible supercapacitor using SILGMs as electrolytes and separator up to 153 F/g at 0.1 A/g keeps the capacitance retention of 97% after 1000 charge-discharge cycles . Flexible and safe hydrogel electrolytes typically consist of the hydrophilic cross-linked polymer networks and water-soluble electrolytes.