Lithium Batteries Categories on the Electric Vehicle Market

Currently market of electric vehicles using lithium batteries are divided into three categories:

LiFePO4 Batteries --- Representative models: BYD E6

Advantages: LiFePO4 battery is a lithium-ion secondary battery, its discharge efficiency is higher, the rate of discharge charge and discharge efficiency can reach 90% or more than low-speed electric vehicles using lead-acid batteries 10% higher, so it’s good be as a power battery, it also can be used in solar powered portable generator.

LiFePO4 battery safety is also very good, can be 390 ℃ within the high temperature stability, to ensure the battery's inherent high security, not due to overcharge, temperature is too high, short circuit, impact and explosion or combustion, can be easily passed acupuncture experiments.

And LiFePO4 battery does not contain any heavy metals, no direct harm to the human body.

LiFePO4 battery has a long service life. LiFePO4 80% of the fast charge, you can safely reach 4000 to 5000 times, 70%, you can also guarantee 7000-8000 times, the theoretical life can reach 7 to 8 years. Now the LiFePO4 battery pack gradually combine with BMS to use in solar power system.

Ternary Lithium Battery - Representative models: Tesla Model S

Disadvantages: Compared to other types of power battery, lithium iron phosphate battery prices higher, and the battery capacity is small, the same battery capacity, lithium iron phosphate battery is heavier and heavier, seriously affecting the life of electric vehicles . In addition, the lithium iron phosphate battery is basically can not be recycled after recycling, there is no recyclable value.

Advantages: ternary lithium battery is a cathode material using lithium-nickel-cobalt-manganese ternary cathode material lithium battery, energy density, volume ratio of energy is high, and the price is relatively low.

Disadvantages: and can not pass acupuncture experiments, indicating that the ternary battery in the internal short circuit, battery case damage, it is easy to lead to combustion, explosion and other safety incidents. In addition, due to the nature of the material itself, resulting in ternary lithium battery life is relatively short, at the same time, due to global global nickel and cobalt resources, a large number of applications may lead to market prices, will increase the future car costs.

Lithium Manganese Oxide Battery - Representative models: Kai Chen Breeze

Advantages: Lithium manganese oxide battery has good safety performance, and tap density, the same volume under the battery can hold more material, with higher power consumption. Due to the high manganese reserves and abundant resources, the cost of manufacturing lithium manganese oxide batteries is also low, which can reduce the cost of car buyers.

Disadvantages: As the nature of manganese itself is not stable, easy to produce gas decomposition, and therefore more mixed with other materials used to reduce the cost of batteries, but its cycle life decay faster. At the same time, instability also makes the battery itself prone to bulging. In addition, compared with other lithium-ion materials such as lifepo4 batteries, lithium manganese oxide high temperature performance is poor, the relative life will be affected.

Sony in 1992, developed the first lithium-ion battery. It is practical, so that people's mobile phones, laptops and other portable electronic equipment weight and size greatly reduced. The use of time greatly extended. Because lithium-ion batteries do not contain heavy metal chromium, compared with nickel-chromium batteries, greatly reducing the environmental pollution.