Zašto nova električna energija koristi 18650 baterije
18650 baterija je rana, zrela i stabilna litijum{1}}jonska baterija, koja se široko koristi u elektronskim proizvodima. Tokom godina, japanski proizvođači su akumulirali mnogo relevantnog iskustva u procesu proizvodnje 18650 baterija, tako da su konzistentnost i sigurnost proizvedenih baterija 18650 dostigle visok nivo.
Nasuprot tome, kaskadne litijum{0}}ionske baterije su daleko od zrelih, uobičajenih kvadratnih baterija, mekih baterija, čak i ako veličina, veličina i položaj jezičaka nisu ujednačeni, proizvodni proces proizvođača baterija ne može zadovoljiti uslovi, i većina ručne kontrole, Konzistentnost baterije je da baterija nije na nivou od 18650. Upravljanje velikim brojem ćelija u seriji i paralelno neće omogućiti da svaka ćelija radi bolje ako je konzistentnost ćelija nije na nivou, a 18650 ćelija može riješiti ovaj problem.
To sum up, the 18650 battery has a small capacity and a large number of cells (7104 for the S type), but the consistency is good. Cascade cells can be increased (20ah 60ah), and the number of cells can be decreased, but the consistency is poor. In contrast, it is very difficult to invest a lot of manpower and material resources with battery suppliers to improve the production process of cascaded batteries. So when it comes to developing the Roadster and Model S, Tesla's only option is to buy batteries from the market and develop its own battery system. The technical challenge of developing a battery system that manages more than 6,000 units with good consistency should be less than that of more than 200 units with poor consistency. Even if the number of individual batteries increases, it will be easier to manage if they perform reliably.
