What type of battery does WM Motor use?
1 Answers
WM Motor uses ternary lithium-ion batteries, which have relatively high energy density and are relatively lightweight. Ternary polymer lithium-ion batteries refer to lithium-ion batteries that use nickel-cobalt-manganese oxide (Li(NiCoMn)O2) as the cathode material. The ternary composite cathode material precursor product is made from nickel salt, cobalt salt, and manganese salt as raw materials, and the ratio of nickel, cobalt, and manganese can be adjusted according to actual needs. The theoretical lifespan of ternary lithium-ion batteries is 2000 charge-discharge cycles. However, in practical use, after about 900 charge-discharge cycles, the battery capacity typically decays to around 55%. This means that a full charge can only provide about half of the original mileage. But if the battery charge-discharge is consistently controlled within cycles of 0%-50% or 25%-75%, even after 3000 charge-discharge cycles, the battery capacity can still maintain around 70%. However, this also requires an excellent battery management system. In the commercial vehicle sector, such as buses, where space is ample and the requirements for specific energy and power are relatively low, lithium iron phosphate (LFP) batteries can be chosen to leverage their good cycle performance. For passenger cars, where space is limited and battery usage is smaller, ternary material batteries with high specific energy and power are more suitable.
