In our lives, when the batteries we use get cold, they suddenly seem to die, even if they are just fully charged. This happens because the battery is affected by the temperature. At this point, someone might say, "What kind of battery doesn‘t get cold?" This is the main objective of this paper: to introduce you to low temperature storage batteries.
What is low temperature resistant lithium battery:
Generally speaking, most of the chemical batteries we see in our daily life are chemical batteries, and these chemical batteries will lose their activity at low temperatures, which leads to their performance will be reduced or even unable to work at low temperatures. So what kind of battery is not affected by temperature? If you add a low-temperature resistant compound to an ordinary chemical battery, you can make the battery not afraid of cold. Low temperature lithium polymer battery, low temperature 18650 lithium battery, low temperature lithium iron phosphate battery are commonly used in the market at present.
Low temperature polymer lithium battery:
The discharge rate is higher at very low temperature. The discharge rate at 0.2℃ is -40℃, and the discharge rate is more than 60%. When the discharge temperature is 0.2C and -30℃, the discharge efficiency can reach more than 80%.
Operating temperature from -40℃ to 85℃;
With excellent low temperature cycle characteristics, under the condition of -30℃, 0.5C charging, 300 cycles, the capacitance can still maintain more than 85%;
With high safety, and obtained UL/CE/UN certification;
The size of the product is flexible, and the size and shape of the product can be designed according to user requirements.
Compared with the conventional lithium-polymeric anode, it can break the limit of -40° C to 30° C and has a broad application prospect.
With mass production and good battery stability;
At -40℃, it can produce a larger current and maintain a higher working capacity.
It can also maintain good working condition at -40℃.
Suitable for cold areas, special equipment and other occasions.
18650 Low temperature lithium battery:
Nominal voltage: 3.7 volts
Rated capacity: --
Support multiplier release: 2℃
Charging temperature: 0℃~45℃
Discharge temperature: -40℃~85℃
Assembly mode: 18650 individual pieces - Custom shields and packs are available
The current 18650 lithium battery is available in the following ranges:
The effective discharge capacity is 40%-55% and the effective cycle life is more than 180 times when the discharge rate is 0.2℃ at -40-85℃.
In the temperature range from -30 ℃ to 85℃, the discharge capacity is greater than 65% at 0.2℃ and more than 60% at 1℃. Can be repeated more than 200 times.
In the environment of -20 ℃ to 85℃, the discharge rate of 0.2℃, the effective discharge capacity is greater than 80%, can be reused 300 times.
These basic data, in practical application, may have some deviation, after all, the application environment is very complex, cannot be generalized. In the application, because the performance and size of the battery are fixed, so its use scope is small, but its production cost is lower than low temperature polymer lithium battery and low temperature lithium iron phosphate battery.
Low temperature lithium iron phosphate:
The internal resistance is reduced by using the laminated process.
Excellent low temperature operation characteristics: 0.5C,-40℃, discharge capacity can reach more than 60%; When the discharge temperature is 0.3℃ and -35℃, the charge-discharge capacity can reach more than 70%.
Operating temperature from -40℃ to 55℃, the operating temperature changes greatly;
Charging and discharging temperature -20℃;
The use of chemical material lithium iron phosphate, the use of safe and reliable, longer service life;
The size is adjustable and can be customized according to user requirements.
32650 Low temperature lithium battery
Nominal voltage: 3.2V
Rated capacity: 3300mAh
Support multiplier release: 2℃
Charging temperature: -20 ℃ ~45 ℃
Discharge temperature: -40 ℃ ~60 ℃
Combination mode: can be single 18650/26650/32650 lithium battery multi series multi and combination with protection plate customization
