Researchers in the United States have developed a rechargeable water-based zinc battery that is not only large in capacity, long in life, but also safer, making it an ideal alternative to the widely used lithium ion battery.
Small size, large capacity, long life, high safety and low manufacturing cost are all ideal qualities for a battery, but a battery with these characteristics is hard to find.Take lithium ion batteries, which are widely used in consumer electronics, for example. Although they have some merits in terms of capacity, volume and life span, their explosion risk has been criticized by many people.
Army research laboratory and the university of Maryland, and the national institute of standards and technology team of researchers, the traditional zinc battery technology combined with a water battery technology, developed a greater capacity, safety higher rechargeable battery.They use a new type of water-bearing electrolyte to replace the inflammable organic electrolyte used in traditional lithium-ion batteries, which greatly improves the safety of the battery.By adding metal zinc and adding salt to the electrolyte, the energy density of the battery is increased.
The researchers point out that zinc batteries are safe and relatively cheap to manufacture, but not perfect because they have low energy density and short life spans.The new water-based zinc battery has overcome the disadvantages of the traditional zinc battery, not only greatly increasing the energy density of the battery, but also extending the battery life.Compared with lithium-ion batteries, water-based zinc batteries can not only compete with them in terms of energy density, but also are much safer, with no risk of explosion or fire.
The researchers are confident that the new water-based zinc battery will be commercially viable.Battery finally, they say, not only can be used in consumer electronic products, a strong contender for the lithium ion battery, can also be used in space, such as deep-sea extreme environment, in the field of aerospace, deep-sea exploration and military has nowhere to go.