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What is the Difference Between 18650 Li-ion Battery and Li-polymer Battery?
2022-03-10
Nowadays, electronic technology is developed, more and more electronic products in life, as long as the electronic products are less battery, according to data from 18650 lithium-ion batteries and lithium polymer batteries, what is the difference between these two types of batteries?
1. The battery shape is not the same
Lithium polymer batteries and 18650 lithium-ion batteries in the cell is most intuitive in the shape of the different, lithium polymer batteries are square, the shell is aluminum plastic film, is a soft pack battery; 18650 lithium-ion batteries are cylindrical, the shell is a steel shell, is hard packaging; at the same time, 18650 lithium-ion batteries only one size, its diameter and height is fixed, the maximum capacity can be done in 3200mAh or below; while the lithium polymer battery is different, it can be made into various sizes and shapes, such as triangle, trapezoid, arc, etc., of course, in addition to the spherical shape, while the battery capacity can be better controlled.
2. The difference in electrolyte
These two types of batteries are also different in terms of electrolyte, of course, in general, even if they are the same kind of battery, the electrolyte used may be different, and the difference mentioned here mainly refers to the difference in form. There are three kinds of electrolytes used in polymer lithium batteries, namely liquid, gel and solid, and different electrolytes have different advantages and disadvantages. 18650 lithium battery electrolyte is basically a liquid.
3. Difference in production process
The manufacturing process of polymer lithium battery is laminated, which can change the size and shape of the battery at low cost and high efficiency, and can produce the right shape of the battery according to the actual application requirements of the product, making full use of the commodity space and making the commodity more in line with the application requirements of consumers. 18650 lithium-ion battery manufacturing process is coiled, which is a fixed size and shape.
4. Differences in application areas
The application of lithium polymer batteries in commercial products is much deeper and broader than 18650 lithium-ion batteries, which can basically replace lithium polymer batteries with 18650 lithium-ion batteries, especially in the field of 3C products, in the miniaturization of smart devices and high endurance requirements, 18650 lithium-ion batteries can not do, while lithium polymer batteries can do.
5. The fundamental difference is that the raw materials are different
Polymer lithium batteries are those that use polymer materials in at least one of the three components: the positive electrode, the negative electrode or the electrolyte. Polymer implies large molecular weight and its counterpart is the concept of small molecules, which have high strength, toughness and elasticity. The polymer materials currently developed for polymer batteries are mainly used for the cathode and electrolyte.
Li-polymer batteries are more available in small applications, while Li-ion batteries have more potential for larger applications. If lithium polymer batteries can break through the limitations of price and design, it may represent the trend of battery development because its environmental protection and safety are more in line with the trend. Shenzhen HaiZhiTong lithium battery manufacturers focus on lithium battery manufacturing technology, safe and stable, high range, long lasting power, want to know more information about lithium batteries welcome to call us.
1. The battery shape is not the same
Lithium polymer batteries and 18650 lithium-ion batteries in the cell is most intuitive in the shape of the different, lithium polymer batteries are square, the shell is aluminum plastic film, is a soft pack battery; 18650 lithium-ion batteries are cylindrical, the shell is a steel shell, is hard packaging; at the same time, 18650 lithium-ion batteries only one size, its diameter and height is fixed, the maximum capacity can be done in 3200mAh or below; while the lithium polymer battery is different, it can be made into various sizes and shapes, such as triangle, trapezoid, arc, etc., of course, in addition to the spherical shape, while the battery capacity can be better controlled.
2. The difference in electrolyte
These two types of batteries are also different in terms of electrolyte, of course, in general, even if they are the same kind of battery, the electrolyte used may be different, and the difference mentioned here mainly refers to the difference in form. There are three kinds of electrolytes used in polymer lithium batteries, namely liquid, gel and solid, and different electrolytes have different advantages and disadvantages. 18650 lithium battery electrolyte is basically a liquid.
3. Difference in production process
The manufacturing process of polymer lithium battery is laminated, which can change the size and shape of the battery at low cost and high efficiency, and can produce the right shape of the battery according to the actual application requirements of the product, making full use of the commodity space and making the commodity more in line with the application requirements of consumers. 18650 lithium-ion battery manufacturing process is coiled, which is a fixed size and shape.
4. Differences in application areas
The application of lithium polymer batteries in commercial products is much deeper and broader than 18650 lithium-ion batteries, which can basically replace lithium polymer batteries with 18650 lithium-ion batteries, especially in the field of 3C products, in the miniaturization of smart devices and high endurance requirements, 18650 lithium-ion batteries can not do, while lithium polymer batteries can do.
5. The fundamental difference is that the raw materials are different
Polymer lithium batteries are those that use polymer materials in at least one of the three components: the positive electrode, the negative electrode or the electrolyte. Polymer implies large molecular weight and its counterpart is the concept of small molecules, which have high strength, toughness and elasticity. The polymer materials currently developed for polymer batteries are mainly used for the cathode and electrolyte.
Li-polymer batteries are more available in small applications, while Li-ion batteries have more potential for larger applications. If lithium polymer batteries can break through the limitations of price and design, it may represent the trend of battery development because its environmental protection and safety are more in line with the trend. Shenzhen HaiZhiTong lithium battery manufacturers focus on lithium battery manufacturing technology, safe and stable, high range, long lasting power, want to know more information about lithium batteries welcome to call us.
