In our lives, when the batteries we use are exposed to low temperatures, they will suddenly run out of power, even if they have just been fully charged. This is because the battery is affected by the temperature, so this happens. At this time, someone may ask, "Which battery is not afraid of cold?" This is exactly the main goal of this paper: to introduce you to low-temperature resistant batteries.
What is a low-temperature resistant lithium battery?
In general, most of what we see in daily life are chemical batteries, and these chemical batteries will lose their activity at low temperatures, which leads to their performance being reduced or even unable to work under low temperature conditions. So which battery is not affected by temperature? If a low-temperature resistant compound is added to an ordinary chemical battery, the battery will no longer be afraid of low temperatures. Low-temperature lithium polymer batteries, low-temperature 18650 lithium batteries, and low-temperature lithium iron phosphate batteries are currently commonly used low-temperature batteries on the market.
Low temperature polymer lithium battery
The discharge rate is high at extremely low temperature, the discharge rate at 0.2°C is -40°C, and the discharge rate is greater than 60%; when the discharge temperature is 0.2 C, at -30°C, the discharge efficiency can reach more than 80%;
- The operating temperature is from -40°C to 85°C;
- It has excellent low temperature cycle characteristics. Under the condition of -30°C, 0.5 C charging, after 300 cycles, the capacitance can still be maintained at more than 85%;
- It has high safety and has obtained UL/CE/UN certification;
- The product size is flexible, and the size and shape can be designed according to user requirements;
- Compared with conventional lithium-polymer anodes, it can break the limit of -40°C to 30°C and has broad application prospects.
- It has mass production and good battery stability;
- At -40°C, it can generate a large current and maintain a high working capacity;
- It can also maintain a good working state under working conditions of -40°C;
- It is suitable for occasions such as severe cold areas and special equipment.
18650 low temperature lithium battery
- Nominal voltage: 3.7V
- Rated capacity: --
- Supported rate release: 2℃
- Charging temperature: 0℃~45℃
- Discharge temperature: -40℃~85℃
- Assembly mode: 18650 single piece - customizable protective cover and PACK
- The current 18650 lithium battery can be achieved in the following ranges:
- In an environment of -40-85℃, discharge at a rate of 0.2℃, its effective discharge capacity is 40%-55%, and its effective cycle life exceeds 180 times;
- In the temperature range of -30~85℃, at a rate of 0.2℃, the discharge capacity is greater than 65%, and at a rate of 1℃, the discharge capacity is greater than 60%; it can be repeated more than 200 times.
- In an environment of -20~85℃, discharge at a rate of 0.2℃, its effective discharge capacity is greater than 80%, and it can be reused 300 times.
These basic data may have some deviations in actual applications. After all, the application environment is very complex and cannot be generalized. In terms of application, because the performance and size of the battery are fixed, its scope of use is small, but its production and manufacturing cost is low, lower than low-temperature polymer lithium batteries and low-temperature lithium iron phosphate batteries.
Low-temperature lithium iron phosphate
- Using the lamination process, the internal resistance is reduced;
- Excellent low-temperature operating characteristics: 0.5 C, -40℃, the discharge capacity can reach more than 60%; when the discharge temperature is 0.3℃, -35℃, its charge and discharge capacity can reach more than 70%;
- The operating temperature varies greatly from -40℃ to 55℃;
- Charge and discharge temperature -20℃;
- Using chemical material lithium iron phosphate, it is safe and reliable to use and has a 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
- Supported rate release: 2℃
- Charging temperature: -20℃~45℃
- Discharge temperature: -40℃~60℃
- Combination mode: Single 18650/26650/32650 lithium battery multi-series and multi-parallel combination plus protection board customization
