What are the power test systems for new energy car batteries?

Industry News News 1910

The LNEYA power battery system is tested for battery testing of new energy vehicles, but modern new energy vehicles have many types of batteries. So what are the characteristics?

The ternary lithium battery refers to a lithium battery in which the positive electrode material is a lithium nickel cobalt manganese ternary positive electrode material. Compared with the lithium cobalt oxide battery, the ternary lithium battery has higher safety and is more suitable for the development trend of new energy vehicle batteries in the future. In the northern weather, the battery is more stable at low temperatures, but the voltage is too low, and the energy density is between the lithium iron phosphate battery and the lithium cobalt oxide battery. The representative models are: China Beiqi New Energy EV200, Beiqi New Energy EU260, Tesla Model 3 Wait.

Nickel-metal hydride batteries are synthesized from hydrogen ions and metallic nickel. The battery has a large energy reserve, lighter weight, longer service life and less environmental pollution. However, the power battery system test reminds that the manufacturing cost is too high, and the performance is worse than the “lithium battery”. Among them, the representative models are: Toyota prius, Ford Escape, etc.

Lithium cobaltate battery is a common battery in electronic products. It is commonly used in laptop batteries. It is used as a battery core. It has mature production technology and high energy ratio. The energy ratio is about twice that of lithium iron phosphate battery, but at high temperature. The stability is slightly worse than the nickel-cobalt-manganese-lithium battery and the lithium iron phosphate battery. The representative models are: Tesla.

The lithium iron phosphate battery is a lithium ion battery using lithium iron phosphate as a positive electrode material. (The positive electrode materials of lithium ion batteries mainly include lithium cobaltate, lithium manganate, lithium nickelate, ternary materials and lithium iron phosphate, etc.), and the stability is currently better in lithium batteries for vehicles. However, the energy density is still not much smaller than that of the ternary lithium battery and the lithium cobalt oxide battery, and the charging efficiency is lowered when the temperature is lower than -5 °C. And if the temperature is too low, it will affect the capacitance of the battery. The model of lithium iron phosphate battery is not suitable for driving in the north, especially in the extreme cold areas such as the northeast, because the temperature in winter is too low, which will affect the service life of lithium iron phosphate battery. The representative models are: China BYD e6 , BYD Qin, BYD Tang and so on.

Graphene battery, also known as black gold: is a new energy battery developed by adding graphene to a lithium battery. Graphene batteries are generally used in aerospace and other fields. This new energy battery can compress hours of charging time to less than one minute. Since graphene is added to the lithium battery, the lithium battery can reduce the heat in the production capacity, thereby reducing the energy loss, avoiding a large amount of energy being wasted, reducing the damage of the heat to the battery, and improving the service life of the battery. Battery costs are too expensive to be used on a large scale.

There are many types of power batteries for new energy vehicles. In order to ensure the operating efficiency of new energy batteries, battery system testing needs to be carefully selected.

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