How to assemble a large-capacity lithium battery

How are large-capacity lithium batteries assembled? Common electric vehicle batteries are usually about 48V 20Ah, and larger ones will have 60V40Ah, or 72V60Ah. The capacity of lithium batteries used for energy storage will be larger, usually ranging from 12V60Ah-200Ah. Then how do these batteries be assembled to achieve large capacity What? Next, we will talk about how to assemble large-capacity lithium batteries; if we want to know how to assemble lithium batteries, we need to understand some basic knowledge of lithium batteries. The single lithium battery cells are usually 3.2V (lithium iron phosphate) and 3.6V (lithium Ion), in addition, we must first understand a principle: the series connection of batteries only increases the voltage without increasing the capacity; the parallel connection of the batteries only increases the capacity without increasing the voltage. Let's take a look at how to increase the capacity of a lithium-ion battery: for example, if you 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. Points to note when assembling large-capacity lithium-ion batteries: 1. The voltage difference of the lithium-ion battery cells used should not be too large, preferably within 20mV; 2. It is not recommended to use the same type of cells from different manufacturers for assembly. Because manufacturers will cause inconsistent work efficiency between batteries due to differences in production technology and battery material formulations, which can easily damage the battery. 3. Even if the lithium-ion battery cells of the same manufacturer are used, they cannot be mixed with old and new; 4. Even if the batteries are from the same manufacturer, 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: 18650 lithium battery manufacturers expose the rules for naming lithium batteries