What is a 12V lithium battery?
12V lithium battery is composed of three or four lithium batteries in series. The capacity of the battery is determined by the capacity of the single-cell and the number of cells connected in parallel. It is a new type of rechargeable battery with safety and environmental protection.
12V lithium battery classification
12V lithium battery according to the different materials and packaging, divided into 12V lithium ion battery, 12V iron phosphate lithium battery, 12V cylinder lithium battery, 12V polymer lithium battery.
1. 12V lithium ion battery
A 12V lithium-ion battery uses three or four lithium-ion batteries in series. The combined battery pack, the capacity of the battery according to the capacity of a single cell, or the capacity of the battery in parallel, is a new type of safe and environmental protection battery.
Battery capacity
Capacity has no standard capacity, is based on the specific requirements of electrical appliances, or equipment to determine, the general capacity is 2200mAh, 5Ah, 10Ah such, some electric vehicle capacity up to 20Ah, or 50Ah. The more batteries are connected in parallel, the greater the capacity.
Volume
The volume of the 12V lithium battery should be determined according to the capacity of the battery. There is no uniform specification. The bigger the battery, the bigger the volume.
Weight
Now many devices need lithium batteries with large capacity and lightweight, such as electric vehicles, which used to use lead-acid batteries, but now many electric vehicles have changed into lithium batteries because lithium batteries have a large capacity, lightweight and small size.
Charge-discharge current
The charge and discharge current of the lithium battery is determined according to the power of the equipment. On a constant voltage basis, the greater the power of the device, the greater the output current must be.
2, 12V lithium iron phosphate battery
The 12V lithium iron phosphate battery is composed of four lithium iron phosphate cells connected in series. The lithium iron phosphate cell is a lithium battery with lithium iron phosphate (LiFePO4) as cathode material. The nominal voltage is 3.2V, the highest charging voltage of the monomer is less than 3.9V, and the lowest discharging voltage is greater than 2.0V. 12V lithium iron phosphate battery advantages
-The 12V lithium iron phosphate battery has a long life. Lithium-iron phosphate batteries can last seven to eight years under the same conditions.
-Safe to use. The 12V lithium iron phosphate battery has been rigorously tested for safety and will not explode even in a traffic accident.
-Charging fast. The battery can be fully charged after 40 minutes of charging at 1.5C using a special charger.
-12V lithium iron phosphate battery high-temperature resistance, 12V lithium iron phosphate battery hot air value can reach 350 to 500℃.
-12V iron phosphate lithium battery green environmental protection, non-toxic, pollution-free, raw materials from a wide range of sources, cheap.
3, 12V polymer lithium battery
Polymer lithium battery is developed on the basis of liquid lithium ion battery, its positive and negative materials, and liquid lithium ion battery is the same, but it uses the gel electrolyte and aluminum plastic film to do the outer packaging, polymer lithium battery is also known as lithium polymer battery, also known as a polymer lithium battery. 12V polymer lithium battery nominal voltage of 12V, widely used in digital products, power tools, special wearable devices, and other fields. 12V polymer lithium battery advantages
-Higher energy density
-Better security
-Flexible design, the shape can be customized
-Good discharge characteristic
-The protection plate is simple in design
12V lithium battery price
The price of a 12V lithium battery is mainly composed of three parts: cell, protective plate, and shell. At the same time, due to the power consumption and current size of electrical appliances, the selection of the material of the connecting piece between the cell (conventional nickel piece, formed nickel piece, copper-nickel composite piece, jumper piece, etc.) will affect the cost. Different connectors (such as aviation plug, may also have a large impact on the cost, and different PACK processes will also affect the cost.
Factors influencing the price of 12V lithium battery
Batteries
According to the different cathode materials of lithium battery, there will be lithium manganese acid (3.6V), lithium cobalt acid (3.7V/3.8V), lithium nickel cobalt manganese acid (3.6V), lithium iron phosphate (3.2V), lithium titanate (2.3V/2.4V), and another material system of the cell, the different material system of the cell, Its voltage platform, safety factor, number of cycles, energy density ratio, operating temperature and so on are not the same, so the price will be different.
Brand
For different brands of lithium batteries, the difference in price is also very obvious, mainly because the quality of each brand cell (safety, consistency, stability, production process, etc.) is basically proportional to the price.
Capacity
12V lithium battery in the voltage is determined, the greater the capacity, the higher the cost, the higher the price will be.
BMS quality and circuit design
Good quality lithium battery with high-quality electronic components and protection plate, as well as multiple protection circuit design, not only improve the charge and discharge circuit, and the constant temperature constant pressure and overcharge, discharge, over current, short circuit and other multiple designs, for you and the use of your equipment to create a safe environment, so the price will be affected by these two factors.
12V lithium battery pack
12V lithium battery pack is composed of 3 or 4 lithium batteries in series, a number of lithium batteries in parallel together lithium battery pack, therefore, 12V lithium battery capacity can be customized.
12V lithium battery pack common capacity
4Ah, 5Ah, 7Ah, 8Ah, 9Ah, 10Ah, 12Ah, 17Ah, 18Ah, 20Ah, 30Ah, 40Ah, 50Ah, 100Ah, 200Ah, and so on.
12 VDC lithium battery
12V DC lithium battery through the boost/buck circuit conversion, the output voltage of lithium battery is stabilized at about 12V, to meet the constant voltage work equipment use, is a standard specification of DC battery, with universal and easy compatibility characteristics, can be changed to meet the use of different electrical equipment.
12V lithium battery applications
-Lighting industry: solar street lamp, solar insecticide lamp, solar garden lamp, solar energy storage power supply, etc.
-Power field: power tools, robots, AGV, vacuum cleaner, electric sprayer, RC field, etc.
-Consumer electronics: Bluetooth audio, loudspeaker field, LED lamps, and various electronic instruments and equipment;
-Energy storage: communication base station, data center, home energy storage, wind-solar energy storage, etc.
-Special fields: medical equipment, security power, special equipment, etc.
