1. Lithium cobalt oxide battery.
Battery cathode material is the first battery cathode material used, and it is also a battery cathode material that is still in fashion in consumer electronic equipment at this stage. Compared with other battery cathode materials, the lithium cobalt oxide battery has a higher operating voltage during operation, and the operating voltage is more stable when the battery is charged or discharged. It can take into account the regulations of large currents, has strong circulatory system characteristics and high conductivity. The efficiency is high, and the production and processing of raw materials and rechargeable batteries is relatively stable.
But it also has many shortcomings, such as fewer resources, more expensive, toxic side effects of cobalt, certain risk factors when applied, and its harm to the natural environment. In particular, its safety factor cannot be further ensured, and it has become a key element that restrains its general development trend.
Among them, the scientific research on positive ion inclusion of metal materials such as Al3+, Mg2+, and Ni2+ is more common. With the gradual advancement of discipline construction, more and more my country chooses the method of positive ion inclusion of metal materials such as Al3+ and Mg2+ at this stage. Just started to be delivered.
The key to the preparation of lithium cobalt oxide batteries is the solid-phase formulation method and the high-efficiency liquid phase formation method. Generally, high-temperature solid-phase compounding method is used for manufacturing. The key is to use lithium salt, such as Li2CO3 or LiOH, and cobalt salt, such as CoCO3, in a ratio of 1:1, and under the high temperature standard of 600℃ to 900℃ Calcined. Today, the use of lithium cobalt oxide battery raw materials in the sales market is focused on the secondary battery sales market, which is also the preferred choice for small and medium-sized high-density lithium battery raw materials.
Two and ternary cathode materials
Compared with traditional lithium cobalt oxide batteries, the ternary synergy is more obvious, with greater advantages in heat resistance, and lower product costs, which can be used as the best alternative raw materials for lithium cobalt oxide batteries. However, its relative density is low, and it needs to be improved at the level of circulatory system characteristics. Therefore, countermeasures such as positive ion inclusion can be adjusted according to the improvement of the production process.
Ternary materials are mainly used in cylindrical lithium batteries, such as aluminum shells and aluminum shells, but in soft pack batteries, due to the hazards of swelling elements, their use is very limited. For future applications, the key is to start from two levels: one is the development trend towards the permanganate index value, the key is to use mobile phone Bluetooth, mobile phones, and other small and medium-sized portable equipment; the development trend towards high nickel, the key is to use electric Vehicles, battery-powered vehicles, and other industries with higher comparative energy regulations.
Three, lithium iron phosphate
It has very good battery charging cycle system characteristics and heat resistance, and has a strong safety factor in the whole process of application, and this kind of raw materials is low-carbon and environmentally friendly, and it is not easy to cause serious damage to the natural environment. In addition, the price is more cost-effective , Is regarded as the best raw material for manufacturing high-capacity lithium battery control modules in my country's battery industry. Today's key main uses are: pure electric vehicles, portable mobile battery charging switching power supplies, etc., in the future, energy storage technology switching power supplies, portable switching power supplies, etc. will develop in-depth trends.
IV. Lithium manganese oxide battery
Because the manganese resource is very abundant in our country, the price is relatively cheap, it has little air pollution, is non-toxic and harmless, and the actual operation of industrial production is simple, so it has a strong safety factor and resistance to overcharge in use. However, because spinel is structurally unstable during the whole process of battery charging or charging and discharging, and the melting of manganese under high temperature standards, it is easy to cause "melting" effect, and its use is greatly restricted, and it suffers a lot in specific applications. limited.
Today's lithium manganese battery is mainly used in small and medium-sized rechargeable batteries, such as mobile phones, electronic products, etc., and lithium iron phosphate batteries can replace each other at the power lithium battery level, so they have strong competitiveness and their development prospects will be High-efficiency energy, high-density, and low-cost development trends.
