Researchers at Stanford University have developed cheap batteries that they hope can be used as an alternative to expensive lithium-ion batteries, which can help us better prepare for the future of renewable energy.
The research team was able to create a sodium-based battery that can store the same energy as a lithium battery at a cost of less than 80% of cost. In the past, other researchers have invented sodium-based batteries, but this new method may be more cost-effective.
Bao Zhennan, a chemical engineer and ethnic Chinese scientist, said: "In terms of performance, nothing will exceed lithium, but lithium is so rare and expensive. We need to develop high-performance, low-cost batteries based on a large number of elements. , like sodium."
It is understood that the sodium in this new battery is combined with a compound called inositol, which is a common organic compound in household products, including infant formula. Just as the content of sodium is much richer than that of lithium, rice bran alcohol is easily extracted from rice bran, and can also be found in the by-products produced during the processing of corn. This will help ensure that the material collection is cost-effective.
Being able to use the battery at any time is an important factor in the clean energy revolution. Many sources of renewable energy, such as solar and wind energy, rely on uncontrollable and often unpredictable environmental factors. The battery can store excess power during peak hours and save under unfavorable conditions. Sodium-based batteries will help make renewable energy more accessible in areas where lithium-ion batteries are costly.
Stanford's battery still needs a long time to be used in consumer products. The team's analysis focused on cost-benefit comparisons but did not consider volume energy density, which is how much sodium-based batteries need to store the same amount of power as a lithium-ion battery.
The team believes that their design can be improved in many ways beyond the original prototype.
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