Reaction mechanism of lithium manganese batteries

The rated voltage of lithium manganese battery is 3.0 volts, about 2 times that of dry battery. Stable discharge voltage, good storage performance, high rate discharge performance, product safety and environmental protection. Many consumers do not know the reaction mechanism of lithium manganese batteries. Next, Hongli lithium battery manufacturers for you to answer.

Reaction mechanism of lithium manganese battery:

Electrochemical system expression: Li/1molLiClO4-pC+DME/MnO2

In the non-aqueous lithium battery system, the lithium ions dissolved from the negative electrode migrate through the electrolyte and dip into the lattice of the positive manganese dioxide to form MnO2 (Li+). This is based on several experimental facts:

1. It is found by X-ray diffraction that the lattice of manganese dioxide expands at each stage of discharge, indicating that some substance enters the lattice.

2. Using atomic absorption spectroscopy, it is found that the ratio of lithium/manganese in the positive electrode increases with the depth of discharge corresponding to each discharge stage.

3. It was found by ion microanalysis that lithium ions covered the particles of manganese dioxide, and the amount of lithium ions gradually increased with the deepening of discharge

Therefore, its electrochemical reaction is as follows:

Negative electrode: Li=Li++e

Positive: MnO2+Li++e=MnO2 (Li+)

Lithium ions entering the manganese dioxide lattice cannot migrate out during charging, so lithium/manganese batteries can only be a single battery

The above is an introduction to the reaction mechanism of lithium manganese batteries. For more lithium manganese cylindrical batteries, please contact Jiangmen Hongli Lithium Battery manufacturer.

(Part of the material on this website is from the Internet. If the information displayed on this website infringes your copyright or other legitimate rights and interests, please notify us in time, and this website will be deleted in time.)