P60B (21700) battery product

INR-21700-P60B (P60B) is a cylindrical lithium-ion rechargeable cell in the 21700 format from Molicel, a brand of E-One Moli Energy. It is a high-power cell intended as the building block of battery packs, and it is supplied as a bare cell rather than a finished pack with a management system.

The typical capacity is 6,000 mAh, which is 21.6 Wh at the nominal voltage of 3.6 V; the minimum rated capacity is 5,850 mAh or 21.3 Wh. Gravimetric energy density is 280 Wh/kg and volumetric energy density is in the range of 838 to 888 Wh/L. Charge voltage is 4.2 V and discharge cut-off is 1.8 V. Typical impedance is 6.5 milliohm AC at 30 percent state of charge and 12.8 milliohm DC at 50 percent. For pack designers, low impedance limits heat generation and voltage sag when the cell is loaded hard.

The standard discharge current is 60 A, with a maximum of 100 A, using a 90 C cell temperature cut-off and a 3.0 V voltage cut-off. This continuous rating is high for the format and is the reason the cell is considered for aircraft power systems with demanding peak loads. Standard charge current is 6.0 A with a maximum of 30 A, and the standard charge time is 1.5 hours. A pack integrator must still verify the permitted current against cell temperature in the final pack design.

The steel can is cylindrical with a maximum diameter of 21.35 mm and a maximum height of 70.13 mm. Maximum weight is 75 g. Ambient temperature range is -20 C to 60 C in charge and -40 C to 60 C in discharge. Series and parallel arrangement, cell holders, busbars, protection circuits and thermal management are defined at pack level.

Molicel states that the data are for reference and do not imply a performance guarantee, and that the cell is not designed for vape or e-cigarette devices. Typical applications are battery packs for multirotor and eVTOL aircraft, electric propulsion, power tools and other high-discharge uses, where cells are assembled into series-parallel packs.