Snowland University develops new solid-state aluminum-ion batteries or replaces lithium-ion batteries

by:CTECHi     2021-07-05

According to foreign media reports, the Hosein Research Group of Syracuse University in the United States has developed a new type of solid electrolyte to replace the liquid electrolyte in the current aluminum ion battery, making it suitable for automobiles, etc. High demand applications.

Private, public and commercial transportation (cars, buses, trucks) and other electric vehicles have increasing demand for batteries, so people have begun to develop aluminum-ion batteries to meet the demand. Electric vehicles require a large amount of electricity to operate normally, which imposes high requirements on the battery. As a result, the battery must be able to perform fast and violent electrochemical reactions to drive external power (such as motors, electronic devices, etc.). But this kind of reaction in turn will cause great mechanical pressure and thermal stress to the battery. However, current battery technology uses liquid as an electrolyte. This type of medium helps to transport ions from one electrode to another. However, this type of electrolyte is composed of organic molecules and is very easy to burn and volatilize. Therefore, the electric vehicle battery has a higher safety risk of explosion, fire, exhaust or failure.

According to foreign media reports, the Hosein Research Group of Syracuse University in the United States has developed a new type of solid electrolyte to replace the current aluminum ion battery In the liquid electrolyte, it can meet high-demand applications such as automobiles. The electrolyte is composed of a very soft polymer and a very hard epoxy resin. The polymer also allows aluminum ions to penetrate, while the epoxy resin provides thermal stability and durability. The polymer is converted into an aluminum ion electrolyte by dissolving aluminum salt (such as aluminum nitrate) into the polymer matrix.

At present, the Hussein research team is actively working to realize the manufacture of all-solid-state aluminum-ion batteries. All components of the battery, including the electrolyte, are solid-state, which will help Incorporate aluminum-ion batteries into high-demand applications such as automobiles.

Aluminum ion battery is a promising next-generation battery technology that can meet future energy transmission needs. The structure is the same as lithium ion, except that lithium is replaced by aluminum. Aluminum is the third most abundant element in the earth's crust and a very cheap substitute for lithium metal. A battery made of aluminum has the highest voltage, can store the most energy, and provides the highest current. Its storage capacity is 4 times that of a lithium-ion battery, and it carries three times the charge of a lithium-ion battery.

While lithium only accounts for 0.7% of the earth’s crust, people are increasingly worried about whether lithium-ion batteries can meet the growing global demand, and its rising cost and The high degree of scarcity also forces people to begin to find and develop more feasible alternatives. Aluminum-ion batteries may be the next generation of storage technology in the post-lithium-ion battery era.

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