What does Tesla's 4680 battery mean?
1 Answers
4680 battery is a newly launched battery in Panasonic's Tesla series, named 4680 battery. Here are the relevant details: 1. Calculation method: The weight energy density of the 4680 battery = battery capacity × discharge platform voltage / weight, with the basic unit being Wh/kg (watt-hour per kilogram). 2. Battery category: The energy density of the battery is divided into the energy density of the battery cell and the energy density of the battery system. 3. Battery cell volume: The volume of the 4680 battery cell is 5.48 times that of the 21700. Based on the comparison from 18650 to 21700, it is normal for the capacity to increase by 5 times without considering other technical improvements.