-(2)The Structure and Composition of Lithium Batteries: Charging and Discharging Principles of Lithium Batteries

(2)The Structure and Composition of Lithium Batteries: Charging and Discharging Principles of Lithium Batteries
author:enerbyte source:本站 click300 Release date: 2023-11-17 09:56:05
abstract:
Electrolyte - A mixed solvent system consisting of LiPF6 ethylene carbonate, propylene carbonate, and low viscosity diethyl carbonate alkyl carbonates. Diaphragm - uses polyolefin microporous membranes such as PE, PP or their composite membranes, especially PP/PE/PP three-la...

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Electrolyte - A mixed solvent system consisting of LiPF6 ethylene carbonate, propylene carbonate, and low viscosity diethyl carbonate alkyl carbonates.

Diaphragm - uses polyolefin microporous membranes such as PE, PP or their composite membranes, especially PP/PE/PP three-layer membranes, which not only have a low melting point but also have high puncture resistance, playing a role in thermal safety.

Charging and discharging principles of lithium-ion batteries

The working principle of lithium-ion batteries refers to their charging and discharging principles. When charging the battery, lithium ions are generated on the positive electrode of the battery, and the generated lithium ions move through the electrolyte to the negative electrode. As the negative electrode, carbon has a layered structure with many micropores. Lithium ions that reach the negative electrode are embedded in the micropores of the carbon layer, and the more lithium ions embedded, the higher the charging capacity.

It is not difficult to see that during the charging and discharging process of lithium-ion batteries, the lithium-ion is in the state of being at the positive electrode; Negative electrode→ The movement state of the positive electrode. If we vividly compare lithium-ion batteries to a rocking chair, with the two poles of the battery at both ends, and lithium-ion batteries are like excellent athletes running back and forth at both ends of the rocking chair. So, experts have given lithium-ion batteries a cute name, the rocking chair battery.

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