How the sodium-ion battery works?

How the sodium-ion battery works?

        Sodium ion battery is a secondary battery (rechargeable battery), is a very promising electrochemical energy storage device, mainly rely on sodium ions to move between the positive and negative electrodes to work, similar to the working principle of lithium-ion batteries, charging, sodium ions from the positive electrode, swimming in the electrolyte through the diaphragm embedded in the negative electrode, the negative electrode in a sodium-rich state; The opposite is true for electrical discharge.

       Sodium-ion batteries are mainly divided into two categories, namely high temperature sodium-ion batteries and room temperature sodium-ion batteries.

        High temperature sodium battery is a kind of secondary battery with sodium ion conduction ceramic electrolyte as diaphragm, sodium metal or sodium compound as active substance, sodium sulfur battery and sodium chloride battery for high temperature sodium ion battery; Water sodium-ion batteries and solvent-based sodium-ion batteries are normal temperature sodium-ion batteries.

At present, the main applications that have begun to be small batches are ambient sodium-ion batteries, especially solvent-based sodium-ion batteries. Sodium-ion batteries have good application prospects in new energy low-speed vehicles, large-scale energy storage, construction machinery, etc.

Main advantages of sodium-ion batteries

. The first is cheap, sodium is the sixth most abundant element in the Earth's crust, and its abundance is more than 1,000 times that of lithium. The price of raw material battery grade sodium carbonate is basically maintained at about 5,000 yuan/ton, while the price of lithium carbonate can reach up to 600,000 / ton, usually more than 100,000 per ton is also very common.

       The second is stability, sodium elements from a wide range of sources, sodium carbonate required for the preparation of sodium ion batteries using Hou's alkali process, and the use of NaCl is inexhaustible; The uneven distribution of lithium elements, more than 70% of the resources concentrated in South America, Chile, Argentina, Bolivia and other countries, 80% of China's lithium resources need to rely on imports, which poses a certain threat to China's energy security. The price of lithium is volatile.

        The cathode material affects the energy density, power density, cycle life, safety and other key performance indicators of the sodium-ion battery, and is very important for the battery performance. The anode material of sodium-ion battery is basically the same as the anode technology of lithium-ion battery.

        In view of the pain points in the production of sodium electric materials, Yushun Intelligent aims to be efficient, reliable, green and energy-saving, and innovatively launches rod and pin type sand mill. The equipment is dedicated to solving the pain points such as low efficiency, cavity overheating, material blocking, mechanical seal leakage in the grinding process, and providing continuous and efficient nano grinding for customers in the sodium electric materials industry.

Large filter area, combined with ultrasonic self-cleaning system, to achieve efficient non-clogging discharge.

       The performance of Yushun sand mill has been greatly improved, and it can better adapt to the needs of the high-end market. These reforms not only improve the grinding efficiency and product quality, but also reduce the failure rate and maintenance costs, bringing real economic benefits to customers. In the future development, Yushun will continue to focus on improving the performance and performance of the sand mill to meet the changing market demand.