Modern technology uses batteries and importance of their use is especially relevant. The usage of lithium-ion batteries cannot be overestimated. But they are expensive to manufacture and they are created from hard-to-reach materials. It is believed that sodium ion batteries can be an alternative. Scientists note their inexpensive way of production. The science believes that if it is possible to solve the problem with the operation of these batteries and the use of lithium-ion technologies, the new battery will become a priority.
One of the best results is based on the creation of a sodium-ion battery, which has the same amount of energy as a lithium-ion battery. These batteries can be used in many industries. The peculiarity of such batteries is the possibility of accumulating a huge amount of energy.
Such storages are becoming more and more relevant every day. But the problem with the usage of such batteries is the high energy density - it is absent, and not long battery life is added to this. Junghua Song who is an engineer of the Lawrence Berkeley National Laboratory believes that lithium-ion batteries have several advantages.
First of all, it is a long life. The reason is that certain materials are used to create the cathode. That is the part of the battery that accepts current electrons. The usage of these materials leads to the accumulation of inactive sodium crystals, which act destructively on the battery.
Ultimately, that leads to impaired energy transfer. To bridge that gap, the scientists designed a layered cathode and a new type of liquid electrolyte. It contains additional sodium ions. During testing, it turned out that the more salty mixture inside the battery led to better interaction with the cathode and the complete absence of accumulation of crystals.
Over a thousand operating cycles, the new type of battery perfectly retained a charge of 80 percent. That is not enough to use the invention to equip a modern smartphone, but the scientists hope to improve their development in the nearest future.