The content of lithium element in 18650 batteries varies depending on the battery specifications and types. Taking a typical 18650 lithium battery as an example, its weight is about 45 grams, with a lithium content of approximately 3.3 to 4.8 grams. This data is calculated based on the density of lithium and battery design parameters, and the specific content needs to be determined according to the actual situation of the battery.
Basic Structure and Composition of 18650 Battery
18650 lithium battery consists of positive electrode, negative electrode, and electrolyte:
Positive electrode: usually using active materials such as lithium cobalt oxide, lithium manganese oxide, lithium iron phosphate, or lithium nickel cobalt manganese oxide.
Negative electrode: generally made of graphite or other carbon materials.
Electrolyte: composed of organic solvents containing lithium salts, mainly responsible for the transport of lithium ions between the positive and negative electrodes.
Capacity range of 18650 battery
The capacity range of 18650 batteries is relatively wide, with mainstream capacities ranging from 180mAh to 3500mAh, and some models have a nominal capacity of over 4000mAh. The capacity of 18650 lithium batteries produced by different manufacturers may vary, but the capacity is generally indicated on the battery.
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