The advantages of adapting to the space requirements of the equipment.

Because there are not many low-temperature cold areas in the country, there are not many low-temperature battery manufacturers, however, the demand for low-temperature lithium-ion batteries is greater in foreign countries such as Russia, the United States, Canada and other Nordic countries. 18650 manufacture Here's how a lithium-ion battery works at low temperatures:

There are three main types of low-temperature lithium-ion batteries: lithium polymer, 18650 lithium-ion batteries, and lithium iron phosphate batteries.

Lithium polymer battery with low temperature

Low-temperature polymer lithium batteries should offer the best performance in low temperature applications, especially in smart wearable technology equipment, which is a competitive advantage for China.

Lithium polymer battery with low temperature

With a temperature range of -50°C to 50°C, the effective discharge capacity can reach 75% at 0.2C rate. The effective cycle life is 150 to 200 cycles.

At temperatures between -40 and 60 °C, the effective discharge capacity of 0.2 °C is greater than 85%, and that of 0.5 °C is greater than 75%

When temperatures range from -30°C to 65°C, the discharge rate is 0.2C, the effective discharge capacity is more than 90%, the discharge rate can reach 2C, and the discharge capacity is more than 75%.

0.2C rate discharges effectively improve the discharge environmental capacity by more than 95% in temperature control ranges between -20°C and 75°C, can achieve 5C discharges, and can utilize discharge data capacity more effectively by more than 65%; More than 300 times longer circulation system service life.

The above basic data will be influenced by specific usage due to the complexity and non-uniformity of the use environment.

The advantages of adapting to the space requirements of the equipment.

Currently, low-temperature polymer lithium batteries are commonly made with colloidal or solid-state materials through a lamination process. This allows for greater flexibility in designing and producing a wide range of battery capacities and shapes, making customization possible. Particularly for small and ultra-thin batteries, this method offers significant advantages. Consequently, these types of batteries are being utilized in various portable electronic devices and smart wearable technology, as well as extreme cold adventure equipment, making them the preferred choice in the market.

In terms of product weight calculated by colloidal or solid electrolyte, low-temperature lithium polymer batteries are basically the same as low-temperature lithium iron phosphate batteries, and they are lighter than low-temperature 18,650 lithium-ion batteries of the same voltage and capacity.

Among these three low-temperature batteries, it has the highest production cost management, which is one of the main factors limiting its application.

Lithium 18650 battery with low temperature

The market for 18650 lithium batteries with low temperatures is dominated by liquid electrolytes at present. There is no change in shape or size of the steel shell cylindrical battery, so its current maximum capacity is 3300mAh, which corresponds to the capacity of more powerful lithium batteries, usually around 2800mAh.

Low temperature 18650 battery

The features of the 18650 low temperature battery are as follows:

Currently, low-temperature 18650 lithium-ion batteries can reach the following temperatures:

Temperature control between -40°C and 60°C, 0.2C rate discharge, effectively improve the discharge environmental capacity of 40% to 55%, and effectively extend the circulation system network life to more than 180 times;

Lithium iron phosphate battery with low temperature

Low-temperature lithium iron phosphate batteries offer two options for outsourcing. One is a steel shell, commonly used in fields such as energy storage and new energy vehicles. The other is a flexible packaging with aluminum-plastic film. While this battery performs similarly to lithium polymer, it outperforms 18650 lithium-ion batteries at low temperatures but falls short in comparison to lithium polymer. Due to the relative youth of the technology, its maturity and stability are not yet on par with other battery types. Additionally, production equipment requirements are higher, resulting in limited availability of high-quality lithium iron phosphate batteries from Chinese manufacturers.

Lithium iron phosphate battery with low temperature

Here is a simple analysis of several different ways of making low-temperature lithium batteries, which I hope will be helpful to you.