Methods and precautions for increasing the capacity of lithium-ion batteries

For example, I want a 6000mAH, 16V large-capacity battery. If the voltage of a cell is 4V and the capacity is 1200mAH, then you need 20 cells. It is to form a series unit group with 4 cells to become a 16V battery pack. The capacity of such a battery pack is 1200mAH, and then 5 such unit battery packs are connected in parallel, so that a 6000mAH, 16V battery pack can be obtained. Large-capacity lithium-ion battery. A 12v high-capacity battery refers to a battery with a nominal voltage of 12V and a battery capacity of more than 20000mAh. 12 Lithium-ion battery is a combination of three 3.7V lithium-ion batteries in series. The voltage of a single lithium-ion battery after being fully charged is 4.2V, which is generally called 4V. The voltages of the series batteries are added together, namely: 4V/unit Battery * 3 electricity also u003d 12V, which is what we call 12V lithium ion battery. Some batteries have a capacity of up to 20AH, or 50AH. The more batteries are connected in parallel, the greater the capacity. According to the physics formula: in a parallel circuit: I total u003d I1 + I2 + I3. Generally, a battery with a capacity exceeding 20000 mAh is called a large-capacity battery. The problems that should be paid attention to in the assembly of large-capacity batteries: 1. The voltage difference of the battery cells used should not be too large, preferably within 20mV; 2. It is not recommended to use the same type of batteries from different manufacturers for assembly, because the manufacturers will Differences in production technology and battery material formulations will cause inconsistent work efficiency between cells, which can easily damage the battery. 3. Even if the lithium-ion battery cells from the same manufacturer are used, they cannot be mixed with old and new; 4. Even if the batteries from the same manufacturer are used, it is recommended to use the same batch of batteries; Disclaimer: Some pictures of articles published on this site And the content is from the Internet, if there is any infringement, please contact to delete the previous article: What are the components of lithium-ion battery electric bicycles