CR1620 battery

　　Researchers develop rechargeable CR1620 battery that could replace lithium batteries

　　Recently, according to cnBeta news, American researchers have developed a rechargeable CR1620 battery that not only has large capacity and long life, but is also safer and is expected to become an ideal substitute for the currently widely used lithium batteries. The technology was published in the journal Natural Resources by the U.S. Army Research Laboratory and the National Institute of Standards and Technology. Researchers at the University of Maryland have made a major breakthrough in a new water and zinc-based battery that may be used in the future. in consumer products such as mobile phones and computers.

　　For batteries, small size, large capacity, long life, high safety, and low manufacturing cost are all ideal quality requirements, but batteries that combine these characteristics are currently difficult to find. Take the lithium battery widely used in consumer electronics. It is reported that the lithium-ion battery is a secondary battery (rechargeable battery) that mainly relies on lithium ions to move between the positive and negative electrodes to work. During the charge and discharge process, Li+ intercalates and deintercalates back and forth between the two electrodes. During charging, Li+ is deintercalated from the positive electrode and embedded into the negative electrode through the electrolyte. The negative electrode is in a lithium-rich state; the opposite is true during discharge. Batteries generally use materials containing lithium as electrodes and are representatives of modern high-performance batteries. However, although lithium batteries are remarkable in terms of capacity, volume, life, etc., many people have criticized them for their explosion risk.

　　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 battery with larger capacity and higher safety. 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. By adding metallic zinc and adding salt to the electrolyte, the energy density of the battery was effectively increased.

　　The researchers note that zinc batteries are safe and relatively cheap to produce, but they have low energy density and short lifespan, making them imperfect. The new CR1620 battery overcomes these shortcomings of traditional zinc batteries, not only greatly improving the energy density of the battery, but also extending the battery life. Compared with lithium batteries, water-based zinc batteries not only compete with them in terms of energy density, but are also much safer, without the risk of explosion or fire.

　　Researchers are confident about the commercialization prospects of new water-based zinc batteries. They said that the new battery will eventually not only be used in consumer electronics and become a strong competitor to lithium batteries, but can 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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