Ultra low temperature battery refers to a battery that can operate normally at extremely low temperatures, generally in an environment of -40 ℃ to -70 ℃. This type of battery has a series of obvious characteristics.

1. Good low-temperature performance: Even at extremely low temperatures, it can maintain high discharge efficiency. For example, when discharged at 0.2C at -50 ℃, the efficiency can reach over 60%; ‌

2. High energy density: Strong energy storage capacity, able to provide high energy output, supporting 1-3C discharge;

3. Long lifespan: The materials and processes used have a relatively long service life;

4. Customization on demand: The voltage and capacity, as well as the size and shape of the battery, can be customized according to customer needs.

Ultra low temperature batteries are mainly used in the following fields:

1. Military field: In extreme weather conditions, military equipment requires a stable energy supply, and ultra-low temperature batteries meet this demand perfectly.

2. Aerospace: Aerospace equipment requires reliable energy sources in special environments, and ultra-low temperature batteries are an ideal choice.

3. Outdoor equipment: For equipment used in cold regions, such as polar expeditions, snow transport vehicles, etc., ultra-low temperature batteries provide reliable energy security.

4. Communication equipment: In some extreme weather conditions, such as base stations in remote areas, satellite communication, etc., ultra-low temperature batteries are also a suitable power source.

5. Emergency rescue equipment: In disaster sites or emergency rescue situations, ultra-low temperature batteries can ensure the stable operation of equipment and provide strong support for rescue work.

6. Electric vehicles: In cold weather, the performance of traditional car batteries will be affected, while ultra-low temperature batteries can ensure the normal operation of electric vehicles in low-temperature environments.

In short, ultra-low temperature batteries play an important role in multiple fields due to their advantages. With the continuous development of technology, the application scope of ultra-low temperature batteries will further expand. We have reason to believe that this technology will bring more convenience and benefits to our lives and work in the future.