Friday, January 29, 2016

Hemp Lignin and Future Energy Storage Devices that Self Heal

Abstract: Superior self-healability and stretchability

 are critical elements for the practical wide-scale adoption of personalized electronics such as portable and wearable energy storage devices. However, the low healing efficiency of self-healable supercapacitors and the small strain of stretchable supercapacitors are fundamentally limited by conventional polyvinyl alcohol-based acidic electrolytes, which are intrinsically neither self-healable nor highly stretchable.

Self-healing performance of the supercapacitor comprising the VSNPs-PAA polyelectrolyte.
Self-healing performance of the supercapacitor comprising the VSNPs-PAA polyelectrolyte.

Here we report

 an electrolyte comprising polyacrylic acid dual crosslinked by hydrogen bonding and vinyl hybrid silica nanoparticles, which displays all superior functions and provides a solution to the intrinsic self-healability and high stretchability problems of a supercapacitor. 
Supercapacitors with this electrolyte are non-autonomic self-healable, retaining the capacitance completely even after 20 cycles of breaking/healing. 
These supercapacitors are stretched up to 600% strain with enhanced performance using a designed facile electrode fabrication procedure.






1 comment:

Mark Sindone said...

Here's hoping that the findings on energy storage with this will be able to benefit a lot of people on the larger scale when the results are magnified.

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