Difference LifePo4 Battery and Ternary Battery
Author: Source: Datetime: 2016-10-11 16:45:34
Battery power is the core of electric vehicles, pure electric vehicles are the only source of driving energy is directly related to the power performance, battery life of electric vehicles, but also directly related to the safety of electric vehicles. The cost of new energy vehicles constituted, the battery-powered systems accounted for 30-50% of the cost of new energy vehicles. And since the birth of electric vehicles, battery technology has restricted the practical process of electric vehicles. Increase power density, energy density, life and cost reduction has been the core of electric vehicle battery technology research and development.
Lithium battery electric car is one of the most common types of batteries, although its inception in 1970, the time is not long, but with a high energy density, long cycle life and other characteristics quickly occupied the vast majority of electric vehicle battery market part of country. Today, in the sale of electric vehicles with lithium batteries mainly have two kinds of LifePo4 and lithium three yuan. At the same time, it also can be used in solar powered portable generator.
What is the difference ternary LifePo4 batteries have it?
Lithium-ion batteries can be divided into a square battery, soft pack batteries and cylindrical batteries.
The current mainstream of LifePo4 battery, battery ternary materials, respectively, are defined by LifePo4 and ternary materials as cathode materials for lithium ion batteries. Ternary material refers Ni, Co, Mn or Ni, Co, Al three metal elements as the core element of the cathode material.
LifePo4 monomer, the energy density of 120Wh / kg, after the group was 80Wh / kg; ternary lithium monomer, the energy density of 180Wh / kg, after a set of energy density 110Wh / kg. From the data point of view, in terms of energy density, three better than the LifePo4 battery; in cycle life, the two equivalent single cell cycle life of greater than 3000 times the battery group, due to the use of working condition becomes severe and complicated, there will be some reduction in life expectancy, the battery life of six years, equivalent to 150,000 kilometers. EV200 battery used ternary lithium battery.
Currently the energy density of LifePo4 has basically reached the ultimate theory, the energy density of the battery as well as three yuan a lot of room for improvement. Comprehensive capacity density, power density, cycle life, low temperature performance, etc., the overall performance is better than ternary battery LifePo4 batteries.
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