Lithium iron Phosphate Battery Works Principle and Detailed Operational Processes

Lithium iron phosphate battery is actually lithium iron phosphate cathode material for lithium-ion batteries, for lithium-ion batteries, the cathode material well on a variety such as lithium cobalt oxide, lithium manganese, nickel, lithium, three meta-materials, lithium iron phosphate, etc., wherein the lithium iron phosphate is the the lithium industry today the most commonly used material.

Lithium iron phosphate by aluminum foil with battery cathode connected to the left is the polymer membrane separates the positive and negative, but the lithium ion Li by electronic e-not by the right is composed of carbon battery negative copper foil connected with the negative electrode of the battery, between the upper and lower ends of the battery, the battery electrolyte, the battery sealed package from the metal shell, the LiFePO4 battery during charging, the positive electrode of the lithium ion Li through the polymer membrane to the cathode migration; in the discharge process, a negative the lithium ion Li cathode migrate through the membrane to the lithium-ion battery is named migrate back and forth in the charge and discharge due to lithium ions.

Working principle of lithium-ion battery, the battery is charging, Li from the lithium iron phosphate crystals 010 surface to migrate to the crystal surface, the effect of electric force, into the electrolyte, through the diaphragm, and then migrate through the electrolyte to the surface of the graphite crystal, then embedded in the graphite lattice, the lithium ions from the deintercalation of lithium iron phosphate, lithium iron phosphate converted into iron phosphate; battery discharge, Li deintercalation from the graphite crystal, into the electrolyte, through the membrane, and then through the electrolyte migrate to the surface of the lithium iron phosphate crystals, and then again by the 010 plane embedded within the lattice of the lithium iron phosphate, lithium iron phosphate, and then flows through the conductive body and discharge starts.

Adding conductive agent for the lithium iron phosphate positive and negative conductive in the positive and negative terminals of the battery supplier must be formed in the active material of the battery, in the actual design process, and the actual production process, how to achieve the above-mentioned three one equation, also need to design a series of experiments to validate mathematical models or empirical formula, then these models or formulas for the design of the lithium-ion battery.

At present, the domestic lithium-ion battery technology is mature, with the world's leading level, the current industry still pay attention to the material of lithium iron phosphate cathode material for lithium-ion batteries, many countries have developed a new lithium-ion battery materials, but the current and there is no large-scale production, experts point out that, at least in the 10 lithium iron phosphate cathode material is the mainstream of the development industry.