Another use for your unwanted eggshells – energy storage
时间:2024-09-22 05:27:53 出处:关于我们阅读(143)
They've been used as a rubber additive, a carbon-capture medium and a bioplastic ingredient. Now, discarded eggshells may have yet another use. Scientists have determined that they could be utilized in an eco-friendly and inexpensive form of energy storage.
An international team of researchers started with regular chicken eggshells, which they washed, dried and crushed into a fine powder. That powder consisted both of the calcium carbonate outer shell, along with the protein-rich fiber membrane found inside.
The material was then used as an electrode against a metallic lithium anode, within a non-aqueous electrolyte. When tested, the resulting battery cell was found to maintain a capacity retention of 92 percent, over the course of more than 1,000 charge/discharge cycles (capacity retention is defined as "a measure of the ability of a battery to retain stored energy during an extended open-circuit rest period").
This energy-storage capability came thanks mainly to the calcium carbonate, which allowed the crushed egg shells to store lithium. It is now hoped that the material could be incorporated into a low-cost lithium-ion capacitor.
"Surprisingly, there are constantly new examples in which natural substances are found to be suited well or even very well for producing materials for electrochemical storage systems," says Prof. Maximilian Fichtner, of Germany's Helmholtz Institute Ulm.
A paper on the research was recently published in the journal Dalton Transactions.
Source: Karlsruhe Institute of Technology
上一篇: Prime exclusive deal: $50 off Govee floor lamp
下一篇: Sinner vs. Michelsen 2024 livestream: Watch US Open for free
猜你喜欢
- Prime exclusive deal: $50 off Govee floor lamp
- Syria's Assad to meet Kim Jong
- Indonesia orders 'perpetrators' punished
- Michael Bloomberg’s campaign donations have a history of backing winners.
- What Ever Happened to Flickr?
- How to Duet on TikTok
- North Korea should take bold step or things may get tragic: Pompeo
- New federal program will make broadband cheaper for low
- 9 Festive Holiday Treats and Where to Find Them