A rechargeable water-based zinc battery -Lithium - Ion Battery Equipment

Developed a rechargeable water-based zinc battery -Lithium - Ion Battery Equipment

Recently, according to cnBeta news, American researchers have developed a rechargeable water-based zinc battery, which not only has large capacity, long life, but also is safer. It is expected to become an ideal substitute for the widely used lithium battery. Published in the journal Natural Resources, researchers at the University of Maryland have made a major breakthrough in a new water- and zinc-based battery that could be used in consumer products such as cell phones and computers in the future.(Lithium - Ion Battery Equipment)

For batteries, small size, large capacity, long life, high safety, and low manufacturing cost are ideal quality requirements, but batteries that integrate these characteristics are still difficult to find. Take the lithium battery widely used in consumer electronic products as an example. It is reported that the lithium ion battery is a secondary battery (rechargeable battery), which mainly relies on the movement of lithium ions between the positive electrode and the negative electrode to work.

During the charging and discharging process, Li+ intercalates and deintercalates back and forth between the two electrodes. During charging, Li+ is deintercalated from the positive electrode and intercalated into the negative electrode through the electrolyte, and the negative electrode is in a lithium-rich state; the opposite is true when discharging. Batteries generally use materials containing lithium as electrodes, which are the representatives of modern high-performance batteries. However, although lithium batteries are remarkable in terms of capacity, volume and lifespan, their explosion risk has been criticized by many people.

This time, a research team composed of researchers from the University of Maryland, the Army Research Laboratory and the National Institute of Standards and Technology combined traditional zinc battery technology with water battery technology to develop a larger capacity and safer battery. rechargeable battery. They used a new type of aqueous electrolyte to replace the flammable organic electrolyte used in traditional lithium-ion batteries, which greatly improved the safety of the battery; and by adding metal zinc and adding salt to the electrolyte, the energy density of the battery was effectively improved.

The researchers noted that zinc batteries are safe and relatively inexpensive to produce, but are not perfect due to their low energy density and short lifespan. The new water-based zinc battery overcomes these shortcomings of the traditional zinc battery, which not only greatly improves the energy density of the battery, but also prolongs the battery life. Compared to lithium batteries, water-based zinc batteries are not only comparable in energy density, but are also much safer, with no risk of explosion or fire.

The researchers are confident in the commercialization prospects of the new water-based zinc battery. They said that the new type of battery will eventually not only be used in consumer electronics and become a strong competitor of lithium batteries, but also be used in extreme environments such as space and deep sea, and will be useful in special aerospace, deep sea exploration and special fields.



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