![]() The Power Cell permits a continuous discharge of 10C. The Power Cell has moderate capacity but delivers high current. All reach the 3.0V/cell cut-off line at about 2000mAh. The 1950mAh Power Cell is discharged at 0.2C, 0.5C, 1C and 2C and 10A. This cell works well for applications requiring heavy load current, such as power tools.įigure 2: Discharge characteristics of UR18650RX Power Cell by Panasonic A 10A (5C) discharge has minimal capacity loss at the 3.0V cutoff voltage. The Panasonic UR18650RX Power Cell ( Figure 2) has a moderate capacity but excellent load capabilities. The circle at the 3.0V/cell line marks the end-of-discharge point at 2C. The 3,200mAh Energy Cell is discharged at 0.2C, 0.5C, 1C and 2C. Figure 1: Discharge characteristics of NCR18650B Energy Cell by Panasonic This cell is ideal for portable computing and similar light duties. At the discharge cutoff of 3.0V/cell, the 2C discharge produces only about 2.3Ah rather than the specified 3.2Ah. The Panasonic NCR18650B Energy Cell ( Figure 1) has high capacity but is less enduring when discharged at 2C. The Li-ion Energy Cell is made for maximum capacity to provide long runtimes. Think of a drying felt pen that needs recuperating to keep marking papers. Too little electrolyte reduces ionic mobility and affects performance. Decreasing the particle size reduces the voids between the particles, thereby lowering the electrolyte content. The volume of electrolyte within the cell determines battery capacity. Larger particles increase the surface area for maximum capacity and fine material decreases it for high power.ĭecreasing particle size lowers the presence of electrolyte that fills the voids. Energy and power characteristics are defined by particle size on the electrodes. The performance of these two battery types is characterized by energy storage, also known as capacity, and current delivery, also known as loading or power. Two basic types of Li-ion have emerged: The Energy Cell and the Power Cell. This has changed, and today lithium-based systems stand shoulder to shoulder with the robust nickel and lead chemistries. The early Li-ion battery was considered fragile and unsuitable for high loads.
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