What are the charging methods for lithium iron phosphate batteries and lead-acid batteries

In addition to the difference in charging methods between lithium iron phosphate batteries and lead-acid batteries, the two have essential differences in their constituent materials. One is a lithium-ion battery and the other is a lead-acid battery. Introduction to Lithium Iron Phosphate Battery Lithium iron phosphate battery refers to a lithium ion battery that uses lithium iron phosphate as the positive electrode material. The positive materials of lithium-ion batteries mainly include lithium cobalt oxide, lithium manganate, lithium nickelate, ternary materials, lithium iron phosphate, and so on. On the left side of the lithium iron phosphate battery is LiFePO4 with olivine layout as the positive electrode of the battery. The aluminum foil is connected to the positive electrode of the battery, and the polymer barrier is in the middle. It separates the positive electrode from the negative electrode, but the lithium ion Li+ can pass through and the electrons e- can not pass, on the right is the negative electrode of the battery made of carbon (graphite), which is connected with the negative electrode of the battery by copper foil. Between the upper and lower ends of the battery is the electrolyte of the battery, and the battery is hermetically sealed by a metal casing. Introduction to lead-acid battery Lead-acid battery is a kind of storage battery made of lead and its oxide, and the electrolyte is sulfuric acid solution. In the discharge state of a lead-acid battery, the positive and negative components are lead dioxide, and the negative and negative components are lead; in the charged state, both the positive and negative components are lead sulfate. The nominal voltage of a single-cell lead-acid battery is 2.0V, which can be discharged to 1.5V and can be charged to 2.4V; in applications, 6 single-cell lead-acid batteries are often connected in series to form a lead-acid battery with a nominal 12V , There are 24V, 36V, 48V and so on. The truth of the matter lead-acid battery After lead-acid battery is charged, the positive plate is lead dioxide (PbO2). Under the use of water molecules in sulfuric acid solution, a small amount of lead dioxide and water are naturally dissociable and unchanging substance lead hydroxide (Pb (OH) 4) The hydroxide ion is in the solution, and the lead ion (Pb) remains on the positive plate, so the positive plate lacks electrons. After the lead-acid battery is charged, the negative plate is lead (Pb), which reverberates with the sulfuric acid (H2SO4) in the electrolyte, and leads to lead ions (Pb2). The lead ions are transferred to the electrolyte, leaving more of the two on the negative plate. One electron (2e). Differences in charging methods Some battery chargers for lithium iron phosphate batteries are self-care. When it detects that the voltage of the lithium iron phosphate battery reaches 4.2 volts, the charging is stopped. Connect a silicon diode with a higher power in series between the lithium iron phosphate battery and the charger (the forward voltage drop is about 0.6 volts). When charging like this, when the voltage of the lithium iron phosphate battery reaches 3.6 volts, add The diode voltage drop is exactly 4.2 volts, which can also be detected by the charger to prevent charging. Generally, lead-acid battery chargers for lead-acid batteries are in a three-stage charging mode. In an environment where 100% of the battery is used up, the charging time will be 8-10 hours, not more than 12 hours. This is right. The battery life will affect the statement: Some pictures and content of the articles published on this site are from the Internet, if there is any infringement, please contact to delete the previous one: Are ternary lithium-ion batteries and lithium iron phosphate batteries safe?