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Excerpt from cosmosmagazine.com
Eco-friendly and affordable battery for low-income countries
A new battery made from zinc and lignin, an organic polymer found in the tissues of most plants, has been developed as a cheap and sustainable battery solution for countries where access to electricity is limited.
“While lithium-ion batteries are useful when handled correctly, they can be explosive, challenging to recycle, and problematic in terms of environmental and human rights issues when specific elements like cobalt are extracted,” says Ziyauddin Khan, a researcher at the Laboratory of Organic Electronics at Linköping University, Sweden.
“Therefore, our sustainable battery offers a promising alternative where energy density is not critical.”
The battery’s energy density is comparable to lead-acid batteries, it can be used for more than 8,000 cycles while maintaining about 80% of its performance and retains its charge for approximately 1 week.
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