Although Pacific Automotive Network blade batteries and ternary lithium batteries are both lithium-ion batteries, their cathode materials are completely different. The positive electrode of the blade battery is made of lithium iron phosphate, which belongs to the category of lithium iron phosphate batteries, while the positive electrode of the ternary lithium battery is made of three materials: nickel cobalt manganese or nickel cobalt aluminum in a certain ratio. Different positive electrode materials are the biggest difference between blade batteries and ternary lithium batteries.
Comparison between batteries and ternary lithium batteries: 1. Although blade batteries and ternary lithium batteries are both lithium ion batteries, their cathode materials are completely different. The positive electrode of the blade battery is lithium iron phosphate, qui belongs to the category of lithium iron phosphate batteries, while the positive electrode of the ternary lithium battery is made of three materials: nickel cobalt manganese or nickel cobalt aluminum in a certain ratio. Different positive electrode materials are the biggest difference between blade batteries and ternary lithium batteries.
2. As a type of lithium iron phosphate battery, blade batteries have a certain gap with ternary lithium batteries in terms of mass and energy density. At present, the mass energy density of ternary lithium batteries after assembly can reach 180 Wh/kg, while the system energy density of blade batteries is only 140 Wh/kg. However, because the blade batteries are arranged in a row, the energy density of the system can be increased by 50%. Therefore, electric vehicles canincrease battery capacity by carrying more batteries, thus allowing the range to enter the 600 kilometer club.
3. Blade batteries are less expensive than ternary lithium batteries. Since the blade battery itself can withstand mechanical pressure, the battery manufacturing process is simpler, the battery material is less and the labor is lower, the manufacturing cost can be reduced by 30% compared to traditional lithium iron phosphate batteries. In 2019, the cost of ternary lithium batteries is about 1 to 1.2 yuan per watt hour, and the cost of lithium iron phosphate batteries is about 0.85 yuan. Blade batteries are 30% less expensive than traditional lithium iron phosphate batteries.
(Images/Text/Photos: Pacific Automotive Network Calling the Beast Q&A)