The difference between 18650 power battery and ordinary lithium battery.
Author: GLIDA Posted: 2019-01-22 15:33:12 Views: 2248] [Small Medium Large
The 18650 power battery supports high current discharge, which can reach 20 times the current capacity. The 18650 ordinary lithium battery only supports 1 times the discharge capacity, that is to say, the maximum discharge current of the ordinary 2600 mAh battery is 2600 mAh. The capacity of power batteries is generally twice that of ordinary batteries. It is estimated that it will not exceed 2000 mA. most. Usually between 1000 mAh~1800 mAh. Text label: 18650 power battery
The 18650 power battery supports high current discharge, which can reach 20 times the current capacity. The 18650 ordinary lithium battery only supports 1 times the discharge capacity, that is to say, the ordinary 2600 mAh battery has a maximum discharge current of 2600 mAh.
The capacity of 18650 power battery is generally twice that of ordinary batteries. It is estimated that it will not exceed 2000 mA. most. Usually between 1000 mAh~1800 mAh.The working voltage of general power battery is lower than that of ordinary lithium battery. The maximum charging voltage of ordinary lithium batteries is 4.2V, and the maximum charging voltage of power lithium batteries is approximately 3.65V. The rated voltage of ordinary lithium batteries is 3.7V, and the rated voltage of power lithium batteries is 3.2V.
1. The positive electrode and positive electrode material of the power lithium battery 18650 are smaller than the ordinary 18650 lithium battery (increasing the specific surface area and speeding up the chemical reaction speed), and the membrane material and electrolyte have better conductivity.The 2C18650 power lithium-ion battery also produces more electrode ears in the anode and negative electrode than ordinary 18650 lithium batteries (which reduces the internal resistance of the electrode ears and satisfies a larger current).The 18650 power battery supports high current discharge, which can reach 20 times the current capacity. The 18650 ordinary lithium battery can only support 1 times the discharge capacity. , 18650 power battery capacity is generally less than about twice the capacity of ordinary 18650 lithium batteries.
The maximum charging voltage of ordinary lithium batteries is 4.2V, and the maximum charging voltage of power lithium batteries is approximately 3.65V. The rated voltage of ordinary lithium batteries is 3.7V, and the rated voltage of power lithium batteries is 3.2V. Lithium batteries are batteries composed of metal lithium or lithium alloy as the negative electrode material and using non-aqueous electrolyte solutions. In 1912, GilbertN developed the lithium metal battery for the first time. Lewis proposed and studied it. In the 1970s, M. Whittingham proposed and began to study lithium-ion batteries. Due to the very active chemical properties of lithium metal, the processing, storage and use requirements for lithium metal are very high. Therefore, lithium batteries have not been used for a long time. With the development of science and technology, lithium batteries have become the mainstream.
Lithium batteries can be roughly divided into two categories: metal lithium batteries and lithium ion batteries. Lithium-ion battery does not contain metal lithium and is rechargeable. Lithium metal battery, the fifth-generation rechargeable battery, was born in 1996. Its safety, specific capacity, self-discharge rate and cost performance are better than lithium-ion batteries. Due to its own high-tech needs, currently only a few countries produce such lithium metal batteries.
1. The positive electrode and the positive electrode material of the power lithium battery 18650 are smaller than the ordinary 18650 lithium battery (increasing the specific surface area and speeding up the chemical reaction), and the membrane material and electrolyte have better conductivity.The 2C18650 power lithium-ion battery also produces more electrode ears in the anode and negative electrode than ordinary 18650 lithium batteries (which reduces the internal resistance of the electrode ears and satisfies a larger current).
The 18650 power battery supports high current discharge, which can reach 20 times the current capacity. The 18650 ordinary lithium battery can only support 1 times the discharge capacity. , 18650 power battery capacity is generally less than about twice the capacity of ordinary 18650 lithium batteries.
The maximum charging voltage of ordinary lithium batteries is 4.2V, and the maximum charging voltage of power lithium batteries is approximately 3.65V. The rated voltage of ordinary lithium batteries is 3.7V, and the rated voltage of power lithium batteries is 3.2V.
Lithium batteries are batteries composed of metal lithium or lithium alloy as the negative electrode material and using non-aqueous electrolyte solutions. In 1912, GilbertN developed the lithium metal battery for the first time. Lewis proposed and studied it. In the 1970s, M. Whittingham proposed and began to study lithium-ion batteries. Due to the very active chemical properties of lithium metal, the processing, storage and use requirements for lithium metal are very high. Therefore, lithium batteries have not been used for a long time. With the development of science and technology, lithium batteries have become the mainstream.
Lithium batteries can be roughly divided into two categories: metal lithium batteries and lithium ion batteries. Lithium-ion battery does not contain metal lithium and is rechargeable. Lithium metal battery, the fifth-generation rechargeable battery, was born in 1996. Its safety, specific capacity, self-discharge rate and cost performance are better than lithium-ion batteries. Due to its own high-tech needs, currently only a few countries produce such lithium metal batteries.
The 18650 lithium battery is a commonly used lithium battery in electronic products. It is often used as the core of laptop batteries. The definition of the model is as follows: For example, 18650 type, the battery has a diameter of 18 mm, a length of 65 mm, and a cylindrical shape.Compared with lithium cobalt oxide, lithium iron phosphate has the following advantages:
1: Safer, overshoot and overdischarge will not cause explosion, leakage life is longer, normal use can cycle more than 1000 times
2: Large rate, 2C charge and 10C discharge, will not be hot, explode, leak, and will not affect the life, but the lithium iron phosphate version of the 18650 monomer voltage is low, and it is mostly used for electrical appliances that work with high current. There are mainly 26,650 power cylindrical lithium-ion batteries because their capacity is greater than 18,650.
Working temperature: -20℃-50℃, the best working temperature is 20℃-40℃, which is similar to the comfortable temperature of human body.