https://www.techspot.com/news/111434-tofu-brine-could-power-safer-batteries-last-decades.html
Tofu Brine could power safer batteries that last decades, researchers say
A new neutral-electrolyte battery survives more than 120,000 cycles without fire risk
By Skye Jacobs Today (Feb 23, 2026)
Bottom line: A mixture most people associate with tofu production could soon help make safer, longer-lasting batteries. Researchers from the City University of Hong Kong and Southern University of Science and Technology have built a water-based power cell that runs on tofu brine – the mineral-rich solution left behind after pressing soy curds.
The design replaces the complex, flammable chemistry of lithium-ion batteries with an electrolyte that's as safe as saltwater. In lab tests, the prototype endured more than 120,000 charge cycles, an endurance record that far exceeds today's commercial standards. Typical electric-vehicle batteries degrade after just a few thousand cycles – even long-duration grid systems seldom survive beyond ten thousand.
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