Extraction of lithium ion by seawater desalinati-Lithium - Ion Battery Equipment

Extraction of lithium ion by seawater desalination technology -Lithium - Ion Battery Equipment

As the source of lithium, phosphorus, nitrogen, potassium and other precious substances, water has become increasingly prominent. Lithium is particularly important because it is used to produce batteries. An international team of scientists, including scientists from the Wetsus Institute in Leeuwarden and the Wageningen University Research Institute (WUR), has been studying a technology that makes it possible to separate various substances from water.(Lithium - Ion Battery Equipment)

The research team led by Louis Desmitt (part of WUR organic chemistry) published an article on this issue in the famous journal Energy and Environmental Science yesterday. In addition to Dutch experts, researchers from Seoul National University, Yale University, Technion and Tsinghua University also attended the meeting.

About 70% of the earth's surface is covered by water, most of which exists in the ocean, but this is salty water, not suitable for human consumption. Fresh water (only 3% of the total) exists in ice sheets and glaciers. Groundwater is usually fresh water, so it can be used. Because fresh water is limited, seawater desalination has become an important technical research direction.

Pure form

This technique is called capacitive deionization (CDI). This is one of the technologies used to desalinate salt water. Scientists use this method to selectively extract ions from water. This is because potassium and phosphorus are composed of ions. Reuse is often just an option when you get these nutrients in pure form in your hands. This makes this technology even more important.

Louis Desmitt explained: "All these theoretical strengths are summarized in the review with simple formulas and short calculations to illustrate the impact. Calculations show that separation is completely possible. You must pay close attention to many details, such as the speed of your separation."


In order to effectively select "fish" as raw materials, it may be necessary to use several of these methods at the same time. "We expect to have more and more new electrodes and membranes to improve the selectivity of CDI."

Maarten Biesheuvel of Wetsus added: "As stated in Wageningen's publication, a better understanding of the ion selectivity and ion transport of these materials will become a guideline for material scientists."



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