What is energy density? What is the energy density of the monomer?
▌What is energy density?
Energy density (Energydensity) refers to the amount of energy stored in a unit of a certain space or mass matter. The energy density of a battery is the electric energy released by the average unit volume or mass of the battery. The energy density of a battery is generally divided into two dimensions: weight energy density and volume energy density.
Battery weight energy density = battery capacity × discharge platform/weight, the basic unit is Wh/kg (watt hour/kg)
Battery volume energy density = battery capacity × discharge platform/volume, the basic unit is Wh/L (watt hour/liter)
The greater the energy density of the battery, the more electricity stored per unit volume or weight.
▌What is the energy density of the monomer?
The energy density of a battery often points to two different concepts, one is the energy density of a single cell, and the other is the energy density of the battery system.
The battery cell is the smallest unit of a battery system. M batteries make up a module, and N modules make up a battery pack. This is the basic structure of a vehicle power lithium battery.
The energy density of a single cell, as the name implies, is the energy density of a single cell level.
According to "Made in China 2025", the development plan for power lithium batteries is defined: in 2020, the battery energy density will reach 300Wh/kg; in 2025, the battery energy density will reach 400Wh/kg; in 2030, the battery energy density will reach 500Wh/kg. This refers to the energy density of a single cell level.
