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18650 rechargeable battery lithium 3.7v 3500mah
18650 rechargeable battery lithium 3.7v 3500mah

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Energy density issues of new energy vehicle power batteries.18650 lithium battery cells

source:Industry News release time:2023-09-22 Hits:     Popular:AG11 battery

  






  Energy density refers to the amount of energy stored in a certain unit of space or mass of matter. The energy density of a battery is the average unit volume or mass of electrical energy released by the battery. The energy density of batteries is generally divided into two dimensions: weight energy density and volume energy density.

  Battery weight energy density=battery capacity × Discharge platform/weight, basic unit is Wh/kg (watt hours/kg).

  Battery volume energy density=battery capacity × Discharge platform/volume, basic unit is Wh/L.

  The higher the energy density of a battery, the more electricity stored per unit volume or weight.

  The energy density of batteries often points to two different concepts, one is the energy density of individual cells, and the other is the energy density of battery systems.

  The battery cell is the smallest unit of a battery system. M battery cells form a module, and N modules form a battery pack, which is the basic structure of automotive power batteries.

  The energy density of a single cell, as the name suggests, is the energy density at the level of a single cell.


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