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The working principle and chemical reaction equation of lithium iron phosphate batteries. The full name of lithium iron phosphate battery is lithium iron phosphate lithium-ion battery, abbreviated as lithium iron phosphate battery. It is currently the most environmentally friendly, long-lasting, safe, and has the highest discharge rate among all lithium battery packs.

The positive electrode of a lithium-ion battery is a compound containing metallic lithium, usually lithium iron phosphate (such as lithium iron phosphate LiFePO4, lithium cobalt phosphate LiCoO2, etc.), the negative electrode is graphite or carbon (usually graphite is used), and an organic solvent is used as the electrolyte between the positive and negative electrodes. When charging the battery, the positive electrode decomposes to generate lithium ions, which enter the negative electrode through the electrolyte and are embedded in the micropores of the negative carbon layer.

Chemical reaction equation of lithium iron phosphate battery pack

Positive electrode reaction: LiFePO4? Li1-xFePO4+xLi++xe-；

Negative electrode reaction: xLi++xe -+6C? LixC6；

Total reaction formula: LiFePO4+6xC? Li1-xFePO4+LixC6。

The working principle of lithium iron phosphate batteries

Lithium iron phosphate battery refers to a lithium-ion battery that uses lithium iron phosphate as the positive electrode material. The positive electrode materials of lithium-ion batteries mainly include lithium cobalt oxide, lithium manganese oxide, lithium nickel oxide, ternary materials, lithium iron phosphate, etc.

During charging of lithium iron phosphate batteries, the lithium ion Li+in the positive electrode migrates to the negative electrode through a polymer separator; During the discharge process, the lithium ion Li+in the negative electrode migrates to the positive electrode through the separator. Lithium ion batteries are named after the migration of lithium ions during charging and discharging.

When charging a lithium iron phosphate battery, Li+migrates from the 010 surface of the lithium iron phosphate crystal to the surface of the crystal. Under the action of electric field force, it enters the electrolyte, passes through the separator, and then electrolytically migrates to the surface of graphene, and is embedded in the graphene lattice. At the same time, electrons flow through the conductor to the aluminum foil electrode of the positive electrode, through the ear, battery pole, external circuit, negative pole, and negative pole to the copper foil collector of the negative electrode, and then through the conductor to the graphite negative electrode. The charge of the negative electrode reaches equilibrium. After lithium ions are deintercaled from lithium iron phosphate, lithium iron phosphate is converted into iron phosphate.

When the lithium iron phosphate battery is discharged, Li+is extracted from the graphite crystal, enters the electrolyte, passes through the separator, migrates to the surface of the lithium iron phosphate crystal through the electrolyte, and then re embedded into the lattice of the lithium iron phosphate through the 010 surface. At the same time, the battery flows through the conductive body to the copper foil collector of the negative electrode, through the pole ear, battery negative pole, external circuit, positive pole pole, and positive pole ear to the copper foil collector of the positive electrode, and then through the conductive body to the lithium iron phosphate positive electrode, so that the charge of the positive electrode reaches an equilibrium state.

The above is an introduction to the working principle and chemical reaction equation of lithium iron phosphate batteries. Have you understood it? Long term manufacturing of lithium iron phosphate battery packs, customized with various usage requirements according to customer needs. The company has won the trust of many consumers with thoughtful service, low prices, and high quality.

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