August , 2022
The full name of vanadium battery is all-vanadium redox flow battery. In order to ensure the safety of energy storage power stations, the National Energy Administration issued relevant documents in June 2022. It is planned to stipulate that medium and large electrochemical energy storage power stations shall not use ternary lithium batteries, sodium Sulfur batteries, soliciting opinions from the society, let vanadium batteries usher in the spring.
Research published in the latest issue of the American Chemical Society "NanoLetters" shows that Chinese scientists are expected to develop a lithium battery that is resistant to combustion and explosions. This lithium battery made of new materials is flexible, low-cost and safer.
Lithium manganese iron phosphate (LMFP) is a new type of cathode material obtained by adding manganese element on the basis of LiFePO4. On the one hand, it can improve the voltage of the material system and make up for the lack of low energy density caused by low voltage of LiFePO4; The surface is coated with a carbon material conductive agent to improve the conductivity. So, what are the advantages of LMFP cathode material?
Ternary lithium-ion batteries refer to lithium-ion batteries that use three transition metal oxides of nickel, cobalt, and manganese as cathode materials. Compared with lithium iron phosphate batteries, ternary lithium-ion batteries have more average overall performance and higher energy density. high, the volume specific energy is also higher. Because it combines the advantages of lithium cobaltate, lithium nickelate and lithium manganate, its performance is better than any of the above single-component cathode materials.
LiFePO4 battery is one of the Lithium battery, Because the cathode materials of LiFePO4 batteries are mainly compounds of phosphorus, acid, iron and lithium. Generally speaking, the voltage range of LiFePO4 battery is basically between 3.2V-3.6V. Among them, the nominal voltage is 3.2V, and the high-level termination charging voltage is 3.6V. However, the positive and negative materials, electrolytes, and production processes used by various manufacturers are different, so there will be differences in performance.