602030 lipo battery technology debate: Should we develop ternary lithium-ion batteries or lithium iron phosphate batteries?

　　Looking at the current domestic new energy vehicle market, the main materials for electric vehicle battery technology are lithium iron phosphate and ternary lithium batteries. Some people believe that in the field of passenger cars, ternary lithium batteries are currently the most popular due to their high energy density and strong endurance. mainstream development direction.

　　602030 lipo battery technology debate: Should we develop ternary lithium-ion batteries or lithium iron phosphate batteries? Looking at the current domestic new energy vehicle market, the important materials for electric vehicle battery technology are lithium iron phosphate and ternary lithium-ion batteries. Some people believe that in the field of passenger cars, ternary lithium-ion batteries have high energy density and strong endurance. It is the current mainstream development direction. In the field of public transportation, we should stick to the lithium iron phosphate route with higher thermal stability and more guaranteed safety.

　　Lithium Ion Battery

　　The so-called lithium iron phosphate battery refers to a lithium ion battery using lithium iron phosphate as the cathode material. The characteristic of this type of battery is that it does not contain precious metal elements. Since it does not contain precious metal materials, the raw material cost of lithium iron phosphate batteries can be reduced very low. In actual use, lithium iron phosphate 602030 lipo battery manufacturers have the advantages of high temperature resistance, strong safety and stability, cheap price, and better cycle performance.

　　The ternary 602030 lipo battery refers to a 602030 lipo battery that uses lithium nickel cobalt manganate as the positive electrode material and graphite as the negative electrode material. Unlike lithium iron phosphate batteries, the ternary 602030 lipo battery has a very high voltage platform, which means Under the same volume or weight, ternary lithium-ion batteries have greater specific energy and specific power. In addition, ternary lithium-ion batteries also have great advantages in terms of high-rate charging and low-temperature resistance. .

　　Lithium iron phosphate batteries are characterized by high safety, high rate charge and discharge characteristics and long cycle life. Its charge and discharge characteristics are also relatively stable. The stability under high-rate discharge conditions is related to the performance of electric vehicles under high power demand conditions such as rapid acceleration and high speed. The more stable the voltage, the better the vehicle performance. In addition, this It can also explain why the endurance of electric vehicles is reduced when driving at high speeds, and the actual discharge capacity of the battery is reduced when the battery outputs high power.

　　Lithium iron phosphate batteries also have good fast charging characteristics. In addition to long life and excellent charge and discharge performance, the biggest advantage of lithium iron phosphate batteries is their safety. Lithium iron phosphate has stable chemical properties and good high temperature stability. It will only start to decompose at 700-800℃, and will not release oxygen molecules when faced with impact, needle puncture, short circuit, etc., will not cause violent combustion, and has high safety performance.

　　The disadvantage of lithium iron phosphate batteries is that their performance is greatly affected by temperature. Especially in low-temperature environments, the discharge capacity and capacity will be greatly reduced. In addition, the energy density of lithium iron phosphate is low. The weight energy density of the battery alone is only 120Wh/kg.

　　Ternary 602030 lipo battery refers to a 602030 lipo battery with a positive electrode of a transition metal-embedded lithium oxide composite material containing three elements: nickel, cobalt and manganese. This material combines the three materials of lithium cobalt oxide, lithium nickel oxide and lithium manganate. Advantages: It forms a three-phase eutectic system of three materials. Due to the ternary synergistic effect, its comprehensive performance is better than that of any single combination compound. The weight energy density can reach 200Wh/kg.

　　However, the safety of ternary lithium-ion batteries is poor. Ternary lithium-ion batteries have poor thermal stability and will decompose at 250-300°C. When encountering flammable electrolytes and carbon materials in the battery, the heat generated will further intensify the decomposition of the positive electrode and cause the cathode to decompose in a very short period of time. It will explode.

　　Due to safety considerations, new energy buses using ternary lithium-ion batteries cannot enter the new energy vehicle catalog of the Ministry of Industry and Information Technology, while cars and trucks are not affected. Although there are safety concerns, due to policy regulations on energy density, ternary lithium-ion batteries have shown a tendency to replace lithium iron phosphate batteries and become the mainstream of passenger cars.

　　Ternary batteries have the advantage of higher energy density than lithium iron phosphate batteries. With the rapid development of the electric vehicle market, people have higher and higher requirements for the energy density of lithium-ion batteries. The cruising range has almost become a measure of pure electric vehicles. The most critical indicator of automobile technology level. Previously, my country's power lithium battery technology route was dominated by lithium iron phosphate batteries. However, the country's policy subsidies for new energy vehicles have also begun to tilt towards capacity density and cruising range.

　　At present, most battery factories are still in the process of developing high-nickel ternary batteries. Of course, a considerable number of car companies are preparing to acquire lithium iron phosphate battery materials in order to reduce costs and avoid competition. But no matter which one it is, for consumers, as long as the performance of the product is improving day by day without affecting safety, it is a good thing. Of course, the shares of ternary lithium and lithium iron phosphate batteries will not be much different, and the possibility of coexistence will be greater in the future.

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