For Tesla, replacing lithium phosphate batteries has the following intentions. First, the first aspect is to reduce costs. When the vehicle is in production, the cost of the battery remains high, accounting for about 50% of the cost of the vehicle. Subsidies and the like are on the decline. From the price advantage, the price of vehicles has less advantage than fuel vehicles. The cost of lithium phosphate batteries is much lower than that of ternary lithium batteries.

Tesla's models all use ternary lithium batteries, whose positive electrodes are made of ternary materials.

Ternary materials refer to three materials of nickel, cobalt and manganese. Some ternary lithium batteries also use nickel, cobalt, and aluminum as positive electrodes.

The ternary lithium battery is a relatively popular battery at present, and most pure electric vehicles are using the ternary lithium battery.

Lithium batteries are lighter and have higher energy density, making them ideal for pure electric vehicles.

The cycle performance of a single cell is mainly affected by three aspects: one is the material system or cell design; the other is the reliability of cell processing; the third is the working conditions and conditions of the battery charge and discharge cycle; the fourth is the test accuracy. If you go to the module and system level, you should also consider the consistency of cell processing, the reliability of BMS, the reliability of welding when connected in series and parallel, whether you have an equalization function, and so on.

The most important thing in the current car manufacturing industry is two words, one is intelligence and the other is battery. Many car companies are now vying for the road to self-research batteries recently, thereby reducing costs. Of course, self-research is not overnight. It can be explained clearly, so it is still necessary to purchase other batteries.

Today, let’s talk about blade batteries. Anyone who cares about the automotive market should have heard of blade batteries.

The advantages of ternary lithium batteries are: smaller size, higher capacity density, low temperature resistance, better cycle performance, and are the mainstream of new energy passenger vehicles. Disadvantages: poor thermal stability, it will decompose at 250-300 ° C, and the chemical reaction of ternary lithium materials is particularly strong. Once the oxygen molecules are released, the electrolyte will burn rapidly under the action of high temperature, and then deflagration occurs.

1. The temperature should not be too high

If the UPS battery is used in an environment higher than the specified operating temperature, that is, above 35°C, the power of the battery will continue to decrease, that is, the battery will not last as long as usual. If the device is charged at such a temperature, the damage to the battery will be even greater. Even if the battery is stored in a hot environment, it will inevitably cause corresponding damage to the quality of the battery.