How to charge lithium iron phosphate battery electric vehicles to make them last longer

Introduction How to charge lithium iron phosphate battery electric vehicles to make them last longer. The correct charging method of lithium battery is mainly to follow the charging principle when fully charged. Mainly when using a lithium battery

How to charge lithium iron phosphate battery electric vehicles to make them last longer

The correct charging method for a lithium battery is mainly to follow the charging principle when it is fully charged.

The main purpose is to avoid overcharging when using the lithium battery, that is, the lithium battery should be charged when the battery is almost completely used.

Second, a full charge can avoid overcharging. For lithium-ion batteries in the industrial industry, when using batteries in the past, charging was relatively slow. A single charge could take 8-12 hours, while the lithium one. ionic batteries The battery can achieve fast charging. A lithium battery with the same capacity as the battery only takes about 4 hours to be fully charged, so be careful when charging and do not charge the lithium battery based on the battery charging time.e. battery.

The last point is not to multitask. Simply put, don't let the lithium battery run while charging. The main reason why this cannot be done is also very simple. This approach will shorten the life of the lithium battery.

This is not recommended.

This will affect battery life.

The charging capacities of lithium batteries are as follows:

1. Before solving the problem, we must first understand the structure and working principle of the lithium iron phosphate battery used. like the positive electrode of the battery, which is made of aluminum foil and the positive electrode of the battery is connected, and in the middle is a polymer separator, which separates the positive electrode from the negative electrode, but lithium ions can pass but electrons cannot.On the right is the negative electrode of the battery made of carbon (graphite), which is connected to the negative electrode of the battery by a copper foil. Between the upper and lower ends of the battery is the battery electrolyte, and the battery is sealed by a metal casing. When a lithium iron phosphate battery is charged, lithium ions from the positive electrode migrate to the negative electrode through the polymer separator; during the discharge process, the lithium ions from the negative electrode migrate to the positive electrode through the separator; Lithium-ion batteries get their name because lithium ions migrate back and forth during charging and discharging.

2. When the battery is charging, lithium ions migrate from the surface of the lithium iron phosphate crystal to the crystal surface, under the action of the electric field force, they enter the electrolyte and pass throughent. The separator then migrate to the graphite crystal through the electrolyte surface, then integrated into the graphite network. At the same time, electrons flow to the aluminum foil collector of the positive electrode through the conductor, flow to the copper foil collector of the negative electrode through the tab, the battery pole , the external circuit, the negative pole and the tab, then flow to the negative graphite electrode through the conductor. The charge on the negative electrode is balanced. After the lithium ions are deintercalated from the lithium iron phosphate, the lithium iron phosphate is converted to iron phosphate.

3. When the battery is discharged, the lithium ions are deintercalated from the graphite crystal, enter the electrolyte, pass through the separator, then migrate to the surface of the lithium iron phosphate crystal through the electrolyte, and then reintegrated into the Screamtal of lithium iron phosphate through the surface of the crystal lattice of lithium iron phosphate. At the same time, the battery flows to the negative electrode copper foil collector through the conductor, flows to the battery positive electrode aluminum foil collector through the tab, the negative pole of the battery, the external circuit, the positive pole and the positive. tab, then flows to the iron phosphate through the conductor. The lithium positive electrode balances the charge of the positive electrode.

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