3.2V and 3.7V are called lithium-ion batteries from a broad category.
According to different chemical systems, it is divided into lithium iron phosphate lithium ion battery, lithium manganese cobalt oxide lithium ion battery, lithium manganese oxide lithium ion battery, and ternary lithium ion battery.
Because the voltage of the lithium iron phosphate lithium ion battery is very different from the latter three, it is often distinguished by people. Become a lithium iron phosphate battery and a lithium ion battery.
A real shot of a square-shaped lithium iron phosphate battery cell. Both the positive and negative electrodes of the battery can be screwed together to form a battery pack.
A side corner of a square lithium iron phosphate battery core. The battery has a nominal voltage of 3.2V and a battery capacity of 85Ah.
Rectangular lithium iron phosphate battery cores, the positive electrode is marked with +, and the negative electrode is marked with -.
3.2V 85Ah lithium iron phosphate battery
According to the research results:
The nominal voltage of the lithium iron phosphate battery is 3.2V, the high end charging voltage is 3.6V, and the low end discharge voltage is 2.0V. Due to the different quality and technology of the positive and negative materials and electrolyte materials used by various manufacturers, there will be some differences in their performance.
3.2V is a lithium iron phosphate battery that can be discharged with a large capacity. Now all electric vehicles use this kind of battery. This kind of battery has a long life and is light in weight! 3.6V and 3.7V are the same as polymer lithium batteries. The upper limit of polymer lithium batteries is 4.2 and the lower limit is 2.6. The general standard is 3.7V.
The discharge platform of the lithium iron phosphate battery is: 3.2V
The discharge range value is: 2.5---3.65V
The maximum charging value can be changed according to customer needs (protection board parameters)
Generally, the highest charging voltage is set at 3.85V
When it reaches 3.85V, the protection voltage is reached, and the protection board will automatically cut off the charging circuit to protect the battery.
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