According to Chuanbao Cao from Beijing Institute of Technology, carbon is a key component in commercial Li-ion energy storage devices including batteries and supercapacitors.
Most commonly, graphite fills that role but it has a limited energy capacity. Cao's team wanted to see if they could develop a material using a sustainable source.
The researchers found a way to process natural silk to create carbon-based nanosheets that could potentially be used in energy storage devices.
Their material stores five times more lithium than graphite can - a capacity that is critical to improving battery performance.
It also worked for over 10,000 cycles with only a nine percent loss in stability.
"We successfully incorporated their material in prototype batteries and supercapacitors in a one-step method that could easily be scaled up," Cao noted.
The paper appeared in the journal ACS Nano.
Catch the latest from the Consumer Electronics Show on Gadgets 360, at our CES 2026 hub.