Structure and working principle of lithium iron phosphate battery
- Jan 19, 2018 -

LiFePO4 as the cathode of the battery, by the aluminum foil and the battery positive connection, the middle is the polymer diaphragm, which separates the positive and negative, but Li Li can pass through and e-E can not pass, the right side is made of carbon (graphite) battery cathode, by the copper foil and battery anode connection. The battery's electrolyte is between the upper and lower ends of the cell, and the battery is enclosed in a metal enclosure.

When the LiFePO4 battery is charging, Li Ion Li in the positive electrode migrates to the negative electrode through the polymer diaphragm, during the discharge process, the lithium ion Li in the anode is migrated to the cathode through the diaphragm. Lithium-ion batteries are named after the lithium ions migrate back and forth in charge and discharge.