What are the factors of lithium battery voltage determine lithium battery voltage?

2022/04/08

  Author :Iflowpower – Portable Power Station Supplier

What is the voltage of the lithium battery? If this problem, if it is, it involves the knowledge of electrochemical chemistry, so it can only be discounted to. Overall, the voltage of the lithium battery is determined by the positive material and the negative material system, and we will simply talk about it. Now that the lithium battery we usually speak is a lithium-ion battery, which is a battery that can be charged.

It mainly relies on lithium ions to move between the positive electrode and the negative electrode. During charge and discharge, lithium ions are embedded and deserted between two positive and negative electrodes; when charging, lithium ions are inserted from the positive electrode, and the electrolyte is embedded in the negative electrode, the negative electrode is in a lithium state; the discharge is reverse. Lithium battery generally uses a material containing lithium elements as a positive or negative electrode material, is a representative of high-energy batteries in recent years.

The voltage of the voltage monomer battery of the monomer lithium battery (lithium battery) is mainly determined by the potential difference of the positive electrode material and the negative electrode material; with the three-dimensional positive electrode material, nickel-cobalt manganese has a lithium potential of 3.65V, with graphite as a graphite. Negative electrode, monomer lithium battery voltage is 3.

65V (3.7V in the market); "How to objectively evaluate the lithium-lithium-ion battery" before, "lithium titanate to lithium potential is 1.5V, If lithium titanate is used as an negative electrode, the voltage of the monomer battery is 3.

7-1.5 = 2.2V.

The voltage lithium battery pack of the lithium battery pack (also called lithium battery pack) is the voltage and current technical requirements in product design. Typically, the lithium battery pack contains a plurality of string parallel cells and battery management systems (simple demand configuration battery protection board), when multiple monomer lithium batteries are connected in series, increase the lithium battery pack output Voltage, the calculation method is to calculate the total output voltage with the number of cellular lithium battery voltage X series cells. The unit is V; multiple lithium batteries can increase the output current of the lithium battery pack (initially physics knowledge ^), calculate The method is to calculate the overall output current with the number of lithium battery current x and lithium battery, and the unit is AH / MAH.

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