Which is good for three-dimensional lithium and lithium lithium phosphate life?

　　Author ：Iflowpower – 便携式电站供应商

Regarding the lithium-ion battery, the life of the general battery will be more than 500 times, but due to the difference in battery formula, it will lead to life, such as three-dimensional lithium and lithium iron phosphate life is different, and the specific life of them is What? First, the theoretical life of the ternary lithium-ion battery life is about 800 cycles, which are medium in commercial rechargeable lithium ion batteries, but if long-term current discharges, or often loss, then The battery life will be reduced. At present, the nominality of battery life is considered to be 70%; in accordance with the actual situation, according to the current three-dimensional lithium-ion battery technology level, the power lithium battery capacity density of electric vehicles generally used is 260WH / kg, calculated according to this energy density, calculated in a year of 20,000 kilometers, calculated according to shallow charges, the cycle life is at least 1000 times. If you use it, you can use it in the electric car to use 5 to 8 years.

At present, the lithium iron phosphate ion battery is about 2,000 cycle life. This is an ideal numerical number of applications in a smooth normal small current charge and a normal temperature environment, but in different cases, the lithium iron phosphate ion battery is true. The number of life cycles is different.

This is important to say how the life of several different uses is. Second, lithium iron phosphate ion battery life 1, lithium iron phosphate ion battery Standard temperature environment Using (1) Small current charger in this case, basically use on 3c electronic products, phosphoric acid in this field If the iron lithium-ion battery is used normally, if the battery brand manufacturer is relatively strong, the quality is good, it is basically more than 2,000 cycling life; small lithium-ion battery manufacturers, the quality is a little more than 1,000 cycle life. (2) High-magnification stable charge and discharge use high-magnification discharge applications, most of them are power-type lithium-ion batteries, mostly applications where applications are applied to motor supply, such as new energy vehicles, electric vehicles, fishing boat electromechanical power supply, etc.

Since most of the lithium iron phosphate ion battery operate in high load conditions, speed up the battery material attenuation time, the cycle life is a very poorly declined battery, which may also be about 500 cycles; strong lithium iron phosphate ions Battery brand manufacturers, it will be better in equipment technology and materials, the quality of the battery will be better, but the loop life is around 800 times. (3) High-magnification instability charge and discharge use I think that the lithium iron-ion battery used in this case, the life will be shorter, 300 left and right is almost scrapped. Unstable discharges used in batteries, low when high, low, to promote the use of battery.

2. Lithium iron phosphate ion battery high temperature environments use lithium iron phosphate ion battery high temperature performance is currently not very mature, operating temperature -20 ¡ã C to 125 ¡ã C, this temperature range is theoretical value, the actual application temperature range is small. (1) Small current charging is normal in this field, if the battery brand manufacturer is stronger, the quality is good, basically more than 1000 cycle life; small lithium-ion battery Manufacturers, the quality is a little more than 500 cycle life; because of the use of high temperature, it is relatively large.

(2) High-temperature stable charge and discharge use of high temperature environments with high-magnification discharge, most is the power-type lithium-ion battery, most is the application of power supply to the motor supply, domestic powerful lithium-ion battery manufacturer Electrical cells are used in new energy vehicles, electric vehicles, fishing boat electromechanical power, etc. Since most of the lithium iron phosphate ion battery operate in high load conditions, speed up the battery material attenuation time, the cycle life is a sharp decline, the quality of the poor quality, may also be 300 cycles; strong battery brand manufacturers, It will be better in the application of equipment technology and materials, and the quality of the battery will be better, but the loop life is about 500 times. (3) High-temperature discharge and discharge and discharge use high temperature discharge retroactivity unstable operation, the battery is more damage, the loop service life is relatively low, and the test of several battery manufacturers is found, 250 to 300 times, the battery is basically used.

Can't. 3, lithium iron phosphate ion battery low temperature environment to use low temperature environments to be higher than high, on the current market situation, lithium iron phosphate ion batteries below -20 ¡ã C- 40 ¡ã C work, life expectancy is significantly dropped, discharge current range 0.2c to 1C, discharge capacity 50% to 60%, temperature is low, worse discharge capacity.

Therefore, now, the low-temperature phosphate ion battery of the mature application is not much, the temperature range is from 20 ¡ã C to 55 ¡ã C, and the recycle life is 300 .