Chinese scientists have made a long-lasting, eco-friendly battery using organic electrodes and an electrolyte safe enough to be used as tofu brine. The team’s water-based battery is non-toxic and can be discarded without posing an ecological risk, unlike conventional lithium-ion batteries which require hazardous waste processing. Water-based batteries eliminate the flammability risk of conventional batteries and can be cheaper to produce, offering a safer alternative for applications like...