-(2)What is the service life of lithium iron phosphate batteries under several different usage scenarios

(2)What is the service life of lithium iron phosphate batteries under several different usage scenarios
author:enerbyte source:本站 click283 Release date: 2023-11-22 08:33:20
abstract:
(1) Low current charging and discharging If lithium iron phosphate batteries are used normally in this field, if the battery brand manufacturer has strong strength and good quality, the basic cycle life is more than 1000 cycles; Small lithium-ion battery manufacturers with s...

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(1) Low current charging and discharging

If lithium iron phosphate batteries are used normally in this field, if the battery brand manufacturer has strong strength and good quality, the basic cycle life is more than 1000 cycles; Small lithium-ion battery manufacturers with slightly lower quality also have a cycle life of over 500 cycles; Because using at high temperatures can cause significant damage to the battery.

(2) High magnification stable charging and discharging usage

The applications of high rate discharge of batteries in high-temperature environments are mostly power type lithium-ion batteries, which are mostly used to supply power to motors. The battery cells produced by strong domestic lithium-ion battery manufacturers are mostly used in new energy vehicles, electric vehicles, fishing boat electromechanical power sources, etc. The battery manufacturers with poor strength are mostly used in some relatively niche fields, such as medical treatment and boiler equipment startup. Due to the fact that most lithium iron phosphate batteries operate under high load conditions, the material decay time of the battery is accelerated, and the cycle life is sharply reduced. Poor quality cells may only undergo about 300 cycles; Strong battery brand manufacturers will have better equipment technology and material applications, resulting in better battery cell quality, but with a cycle life of around 500 cycles.

(3) High magnification unstable charging and discharging usage

The unstable operation of high temperature and discharge rate causes greater damage to the battery, and the cycle life is relatively low. After testing several battery manufacturers' home appliance cells, it was found that after 250 to 300 cycles, the battery is basically unusable.

3. Lithium iron phosphate batteries used in low-temperature environments

The impact of low temperature environment on the performance of lithium iron phosphate batteries is greater than that of high temperature. From the current market situation, lithium iron phosphate batteries operate below -20 ℃ to -40 ℃, with a significant decrease in lifespan. The discharge current range is 0.2C to 1C, and the discharge capacity is 50% to 60%. The temperature is also low, resulting in poorer discharge capacity. Therefore, there are not many mature low-temperature lithium iron phosphate batteries in the market now, with a temperature range of -20 ℃ to 55 ℃ and a cyclic service life of about 300 times.

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