Honda develops the world's first practical magnesium rechargeable battery

Honda develops the world's first practical magnesium rechargeable battery

Honda Motor Co., Ltd. cooperated with a research and development team to develop the world's first practical magnesium rechargeable battery.

Japanese media reported that the new battery may become a disruptive product. After installing a new battery, smart phones and other devices can be charged for longer periods of time. For equipment manufacturers, magnesium costs 96% less than lithium, and many of today's batteries are made of lithium.

According to reports, the leading R&D activity was the Saitama Industrial Technology Center in Japan. The Honda R&D team evaluated the feasibility of the battery in Wako City. Developers expect that magnesium batteries will initially be commercially available in smart phones and other portable devices. The magnesium battery developer hopes to sell the product by 2018. Honda Motors and the Saitec team will display batteries at the Chiba Science and Technology Conference next month in Tokyo.

In the past few decades, we have been using lithium batteries. Now that technology companies have encountered difficulties, it is challenging to store more electric power in lithium batteries. Saitec and the Honda team may have found a solution. They confirmed that magnesium prototype batteries are comparable to lithium batteries in terms of lifespan and safety. Researchers are working with a number of battery manufacturers to find ways to mass produce magnesium batteries.

Many researchers are also looking for ways to use magnesium in rechargeable batteries, but they all face the same difficulties. During charging and discharging, and discharging and charging, the charging performance of magnesium rapidly deteriorates.

In order to solve this problem, the researchers developed a new material, vanadium oxide, and applied it to the positive electrode so that the ions flowed more easily between the vanadium oxide and the negative electrode of magnesium. Vanadium oxide can increase the number of times that magnesium is charged, preventing it from decaying. To increase safety, researchers added an organic substance that could reduce the risk of fire in magnesium batteries. Magnesium itself is a flammable material.

If the heat resistance of magnesium batteries in the future can be further enhanced and the storage capacity further increased, companies can install magnesium batteries into plug-in hybrid vehicles and electric vehicles.

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