Varför kommer Tesla aldrig att byta batterier?

Among so many manufacturers of pure electric vehicles in the world, the "battery swap mode" seems to be the most popular among Chinese manufacturers. Even the national policy is tilting towards the power-swap model. Even in the subsidy policy in 2020, it is clearly pointed out that there is no subsidy for pure electric vehicles with a price of more than 300,000 yuan, except for models in the battery swap mode.

Dessutom har industri- och informationsministeriet och Energimyndigheten börjat främja batteribytesmodellen. NIO, Geely Automobile, Changan Automobile, CATL och batterileverantörer har också börjat använda batteribyten.

However, it seems that foreign car brands are not interested in the battery swap mode. Tesla, Mercedes-Benz, BMW, Audi's pure electric vehicles do not support battery swapping. So why doesn't Tesla think battery swapping is a good model?

To answer this question, we must first figure out why we "change the battery"!

【1】What are the benefits of changing batteries?

Enkelt uttryckt finns det många fördelar med batteribyte. För det första kan livslängden för rena elfordon förlängas genom att byta batteri. För det andra kan det förbättra bevarandegraden för rena elfordon. För det tredje kan du också minska priset på modellen genom batteribytesläget, och batteriet kan hyras istället för att köpas. För det fjärde kan det öka hastigheten på energipåfyllning.

With so many benefits, why doesn't Tesla do battery swaps?

2 Why doesn't Tesla do battery swaps?

Why doesn't Tesla do battery swaps? To put it simply, Tesla's cars have achieved similar effects as battery swaps without supporting battery swaps. We will know the benefits of the power exchange mentioned above one by one.

För det första kan batteribyte förlänga batteritiden. Enligt professionella uppgifter har Tesla fortfarande cirka 90 procent av batterikapaciteten i sin elbil efter att ha kört 320,000 kilometer. Det vill säga att batteriets sönderfallshastighet har liten effekt på de flesta vanliga konsumenter. I USA skrotas en bil vanligtvis efter 320,000 kilometer, medan antalet skrotade kilometer i Europa är 240,000 kilometer. Tesla säger att dess batteripaket är designade för att hålla längre än själva bilen, och hittills har inga användare påverkats av batteritiden, så konsumenter kanske aldrig behöver oroa sig för att köpa en elbil och behöva byta ut batteriet Problemet.

Second, battery swaps can improve the value preservation rate of pure electric vehicles. There are many factors that affect the value of a car. At present, in China's pure electric vehicle market, the highest value preservation rate is precisely Tesla, which cannot be replaced. Instead of Weilai, which can exchange electricity. why? To put it simply, the value retention rate depends on the brand, the amount of ownership, the quality of the model, the condition of the car, and the result of a comprehensive judgment. At present, whether in terms of brand or ownership, Tesla still has a great advantage. Therefore, the effect of power exchange on improving the preservation rate is not large.

Third, the price of the model is reduced through the battery swap mode, and the battery is rented instead of bought. This is also the way NIO used it for the first time. And Tesla's way seems simpler and more straightforward. It is to launch relatively cheap models such as model 3, and then through the manufacturing process, for example, the body-in-white of model Y uses an integrated die-casting rear bottom plate. The integration of 70 parts of the rear floor can be realized, and the traditional production process of welding the rear floor can be omitted, so that the production time and cost are greatly reduced.