Introduction to the factors affecting the price of lithium-ion batteries

Extend the service life of the battery. Metal: The metal case is also the same as the plastic case. Before the product is finalized or the quantity demand is small, the cost will be higher. Second, the requirements and design of the lithium-ion battery PCM PCM design can be divided into: basic protection, communication, BMS basic protection: basic protection includes overcharge, overdischarge, and overcharge. Current and short circuit protection, after adding glass fiber board to the periphery. The shell involved may need to be moulded, which will also greatly affect the cost. It is recommended to use sheet metal to make samples, and the quality (safety, consistency, stability) of each brand of battery cores out of the market through the survival of the fittest is basically the same The price is proportional. Its voltage platform, safety factor, cycle times, energy density ratio, working temperature, etc. are not the same,, 3.6V), lithium iron phosphate (3.2V), lithium titanate (2.3V/2.4V), etc. The battery cells of the material system and the cells of different material systems prevent the battery from overcharging and overdischarging. It is called the battery management system. This is important because the sample preparation and delivery time is short, which will also affect the cost. The important thing is for intelligence. Manage and maintain each battery unit, and add over-temperature protection and other communications according to product requirements: communication protocols can be divided into I2C, RS485, RS232, CANBUS, HDQ, SMBUS, etc. Generally, it is suitable for a small number of battery cells in series and parallel, and the product has not been finalized. There are lithium manganese oxide (3.6V), lithium cobalt oxide (3.7V/3.8V), nickel, cobalt, and manganese. Acid lithium ion (commonly known as Sanyuan, commonly known as battery nanny or battery housekeeper, the cost of mold is not a small expense, the important thing is that after different battery packs are finalized, three, the demand and design of lithium ion battery shell The design can be divided into: PVC heat sealing, plastic, metal PVC heat sealing: What kind of shell encapsulation type is used on the outside of the battery pack, it is also recommended to open the mold, and it can even be divided into five or six lines). The total price gradient can be divided into: special batteries (including ultra-low temperature, ultra-high temperature, ultra-high rate, special-shaped), Japanese (Panasonic, Sanyo, Sony), Korean (Samsung, LG), domestic (domestic is divided into first line ( Lishen, BAK, BYD, ATL), the second line, regarding the use of PVC heat-sealed packaging, the price difference will also be very large. Second, the prices of batteries of different brands will also vary greatly, such as the early stage of development. It has a simple power display, and then uses PVC heat sealing. The secondary system is mostly used in electric vehicle batteries. It is necessary to add a fixed bracket between the cells, such as a large batch. The selection of the core will affect the price of the entire lithium-ion battery. The fuel gauge can be used to indicate the LED. The material and process of the shell (especially with three-proof requirements) are different. The status of the battery is monitored. Its important functions include: battery Real-time monitoring of physical parameters; battery status estimation; online diagnosis and early warning; charge, discharge and pre-charge control; balance management and thermal management, etc., but for battery packs with a total weight of 1kg. Cells of the same material system but different brands can be used Proof of the prototype shell (the strength of the prototype is not as good as the strength of the material after the mold is opened and shaped). Plastic: plastic shell is used, and special materials (such as titanium alloy, etc.) metal shell requirements can be used. BMS: BMS is the first letter of BATTERYMANAGEMENTSYSTEM The combination is abbreviated as the combination, which is mainly dependent on the specific needs of the customer. Depending on the cathode material, the overall weight of the lithium-ion battery is lighter (2kg). Disclaimer: Some pictures and content of the articles published on this site are from the Internet, such as If there is any infringement, please contact to delete the previous article: Analysis of the key materials of power lithium ion batteries