Types and characteristics of new energy vehicle batteries

With the development of new energy vehicles, there are more and more innovations in new energy vehicle batteries. Most consumers only care about the endurance of electric vehicles, but ignore the core power of electric vehicles, "power batteries". Let's learn about the types and characteristics of new energy vehicle batteries.

During the charging process of lithium iron phosphate batteries, some lithium ions in lithium iron phosphate are released, transferred to the negative electrode through the electrolyte, and embedded in the negative electrode carbon material; at the same time, electrons are released from the positive electrode and reach the negative electrode from the external circuit to maintain the balance of chemical reactions. During the discharge process, lithium ions are released from the negative electrode and reach the positive electrode through the electrolyte. At the same time, the negative electrode releases electrons and reaches the positive electrode from the external circuit to provide energy to the outside world. High energy density, good safety performance, long cycle life, safety and environmental protection.

Ternary polymer lithium battery refers to a lithium battery whose positive electrode material uses nickel cobalt lithium manganese oxide or nickel cobalt lithium aluminum oxide as a ternary positive electrode material. The ternary composite positive electrode material is made of nickel salt, cobalt salt, and manganese salt. The ratio of nickel cobalt manganese can be adjusted as necessary. High energy density, good cycle performance, high voltage platform, and long cycle life.

Nickel-metal hydride battery is a good performance battery. Nickel-metal hydride batteries are divided into high-voltage nickel-metal hydride batteries and low-voltage nickel-metal hydride batteries. The positive active material of nickel-metal hydride batteries is Ni(OH)2 (called NiO electrode), the negative active material is metal hydride, also called hydrogen storage alloy (the electrode is called hydrogen storage electrode), and the electrolyte is 6mol/L potassium hydroxide solution. Strong reliability, long cycle life, and excellent low-temperature performance

Lithium-ion batteries are currently the most widely used new energy vehicle batteries. Lithium-ion batteries can be divided into different types such as lithium cobalt oxide, lithium manganese oxide, lithium iron phosphate and ternary materials. The energy density is high, the weight is light, the charging speed is fast, and the safety is good.

Sodium-ion batteries are a new type of battery technology developed in recent years. Its main advantages are abundant sodium resources and low prices. Compared with lithium-ion batteries, sodium-ion batteries have a slightly lower energy density, but have a higher cycle life. Low cost, long cycle life, and low energy density.