Cheaper and more abundant potassium-ion batteries may become a dark horse

In view of the leading position of lithium batteries, cheaper and more abundant potassium-ion batteries are still the ultimate dark horse. The leader of the company is the lithium battery energy storage field. Mobile phone and electric vehicle battery energy storage plants are lithium battery countries, but this does not mean that It can resolutely throne, because the safety of lithium batteries is questioned, the capital is higher, and many scientists are looking for alternative methods. Scientists are now cheaper in the United States and more abundant in potassium crust batteries. The potassium content in the local shell is about 2.09%, ranking seventh, and the processing cost and data cost are lower than lithium. The American Institute of Technology (RPI) believes that if the full potassium metal anode is used, regardless of the volume energy density or the energy density of the component, it can be compared with The United States has the advantage of higher battery capacity compared to lithium batteries. However, potassium ion batteries and lithium batteries are the same, and there is also the problem of dendrites. Generally, the appearance of the imbalanced electrodes of lithium ions during the charging and discharging process of lithium batteries will eventually be formed due to the accumulation of dendrites and lithium dendrites. These trees Suddenly breaking through the insulating layer eventually caused the battery to catch fire, and the activity of potassium is higher than the melting point of lithium, which is 68 degrees Celsius. In fact, it is a flammable and explosive substance, which requires a lot of careful handling in terms of safety. The RPI team claims that they have a magical self-correction technology that can automatically remove dendrites on the anode after a full night of charging to prevent their overgrowth. The team pointed out that by precisely controlling the temperature of the battery in a controlled environment and advancing to an appropriate temperature, the metallic potassium will not melt, and the cloth will be dispersed, so that the potassium atoms will leave the aggregation area and the dendrites will be uniform. This situation is a bit like after a blizzard on a sunny day, flying with the wind in the wind, the sun exposure will gradually shrink, and eventually become flat. Professor Nikhil Koratkar of mechanical, aerospace and nuclear energy engineering pointed out that there is no battery, just flip the battery processing system, and promote the local After the heat, let the battery self-modification. The research team believes that this may commercialize cheap, aging potassium metal batteries. But it is not the first time that the group has observed battery self-modification conditions. As early as 2018, they found that they can propose a lithium battery with temperature-squashed dendrites in the same way, and new discussions have found that potassium can be used in batteries, maybe In order to prevent the overheating of the economy and accelerate the decline of batteries, the battery processing system plan was discussed and proposed. Disclaimer: Some pictures and content of articles published on this site are from the Internet. If there is any infringement, please contact to delete.