Tesla's popularity and the rapid development of new energy electric vehicles, as well as electric motorcycles, power tools and other fields continue to heat up the demand for large-capacity power batteries, forcing battery manufacturers to continuously break through the energy density limit and challenge the peak of the industry. Everyone can't wait to make a unique killing trick to compete for this huge cake.
Recently, South Korea's LG Chem, which has always been relatively low-key, has brought the world's highest-capacity power-type 18650 cylindrical batteries with a single cell of 3,200 mAh. The model of the battery core is INR18650MH1, and the code mark on the light blue PVC envelope is LGDBMH11865; the official nominal maximum capacity is 3200mAh (11.744Wh), the minimum capacity is 3100mAh (11.377Wh); the charge cut-off voltage is 4.2V±0.05. V, the discharge cut-off voltage is 2.5V; the size is still the standard 18650 specification, the maximum weight of a single is 49g.
The energy density of LGINR18650MH1 is as high as 730Wh/L, which greatly increases energy without changing the volume, voltage platform and appearance, thanks to the application and popularization of NCA “LithiumNickel-Cobalt-AluminumOxide” nickel-cobalt aluminate material. LG's 3200mAh power-type battery is also made of NCA material, which is the same material used by Panasonic 3100mAh. In terms of service life, LGINR18650MH1 was born. In the 0.5C cycle life test, LG gave 500 commitments of not less than 70% capacity (2170mAh); compared to 300 cycles marked in many batteries PDF After only 70% capacity, it is still a lot of good.