A newly-developed home battery, which runs off salt water instead of acid, is set to revolutionize the way people charge their homes. This battery makes a remarkably sustainable power source, which can sustain its charge (without corrosion) for years.
Conventional batteries use two plates of lead submerged in a solution of sulfuric acid and water. The acid is incredibly toxic and can cause serious damage to the environment (and to you) if the battery leaks. The new batteries use saltwater to conduct current instead, which makes them much safer.
Additionally, whereas lead-acid batteries only discharge about 50% of their energy, salt water batteries are able to discharge 90% of their capacity - so you are able to utilize 40% more energy. Each battery can handle 3,000 discharges, making them good for 3,000 days and nights. They can also be stacked together to increase your power needs.
Another great feature is that these batteries won't potentially catch fire like acidic batteries do. If you're interested in purchasing one, check out Aquion Energy's website.
H/T: The Mind Unleashed