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.

Lithium manganese iron phosphate (LiMnxFe1-xPO4) is a new type of phosphate lithium-ion battery cathode material formed by doping a certain proportion of manganese (Mn) on the basis of lithium iron phosphate (LiFePO4). Through the doping of manganese element, on the one hand, the advantageous characteristics of iron and manganese can be effectively combined, and on the other hand, manganese and iron are both located in the fourth periodic subgroup and adjacent to the periodic table, and have similar ions Radius and some chemical properties, so doping will not significantly affect the original structure.

Many people will be entangled in the type of battery when purchasing new energy vehicles. In fact, the difference between ternary lithium battery and lithium iron phosphate battery mainly lies in the positive electrode material. Among them, the positive electrode material of ternary lithium battery is nickel salt, cobalt salt, manganese salt, and the positive electrode material of lithium iron phosphate battery is lithium iron phosphate. In addition, the electrolyte and anode materials of both use lithium hexafluorophosphate and graphite.

Saturnose, an Asian battery research and development company, announced that it will publicly release independent test results of enhanced aluminum-ion batteries, and plans to launch solid-state rechargeable aluminum-ion batteries, which will be released as soon as next year. This may be the world's first mass-produced commercial-grade aluminum-ion solid-state battery, which is expected to replace the risky lithium-ion battery.

18650 lithium battery has high energy density, so most of it is used in laptop battery. In addition, because 18650 has very good stability in work, it is widely used in various electronic fields. Commonly used in high-end glare flashlights, portable power supplies, wireless data transmitters, electric heating suits, shoe materials, portable instruments, portable lighting equipment, portable printers, industrial instruments, medical instruments, etc.

The decommissioned lithium iron phosphate batteries and the batteries after the cascade use that do not have the value of cascade use will eventually enter the dismantling and recycling stage. The difference between a lithium iron phosphate battery and a ternary material battery is that it does not contain heavy metals, and the main recovery is Li, P, and Fe. The added value of recycled products is low. Need to develop a low-cost recovery route, there are mainly two recovery methods, fire method and wet method.

On October 26, 2021, a BYD battery price increase contact letter was posted on the market. According to the letter, due to market changes and superimposed power and production restrictions, compared with December 2020, lithium battery raw materials will continue to rise in 2021. The price of cathode material LiCoO2 will increase by more than 200%, the price of electrolyte will increase by more than 150%, and the price of anode materials will increase by more than 150%. As the supply continues to be tight, the overall cost has increased significantly. According to the actual situation of rising raw material prices, the unit price of CO8M and other battery products will be increased after research.

As a portable energy storage device, lithium ion batteries are widely used in mobile phones, notebook computers, cameras, electric bicycles, electric vehicles and other fields. Among them, the lithium battery electrolyte is an aspect that cannot be ignored. After all, the electrolyte, which accounts for 15% of battery cost, does play a vital role in battery energy density, power density, wide temperature applications, cycle life and safety performance.

Electrolyte is an important part of lithium-ion batteries. It not only transports and conducts current between the positive and negative electrodes, but also determines the working mechanism of the battery to a large extent, affecting the specific energy, safety performance, rate charge and discharge performance, cycle life and production cost of the battery.

The negative electrode of lithium ion battery is made by mixing the negative active material carbon material or non-carbon material, binder and additives to form a paste glue, evenly spreading it on both sides of the copper foil, drying and calendering it.