Which is heavier, aluminum acid battery or lithium battery?

Aluminum acid batteries are heavy.

The average voltage of a single cell of an aluminum acid battery is 2V, and the average voltage of a single cell of a lithium battery is 3.7V. Due to different materials, the activity of lead acid batteries is not; as high as that of lithium batteries, so the capacity of lithium batteries in the same volume Larger than lead-acid batteries; (lead acid batteries are bulky) Lithium battery platform is not as stable as lead acid batteries.

Lithium metal batteries generally use manganese dioxide as the positive electrode material, lithium metal or its metal alloy as the negative electrode material, and use non-aqueous electrolyte solution.

When the VRLA battery charge reaches its peak, the charging current is only used to break down the water in the electrolyte. To thisAt this time, the positive electrode of the battery produces oxygen and the negative electrode produces hydrogen. . The gas will overflow the battery, causing electrolysis. The liquid is reduced and water must be added from time to time.

Detailed information:

< p>When charging lithium batteries, the upper voltage limit should be set so that the lifespan, capacity and safety of the battery can be considered at the same time. The ideal upper limit of charging voltage is 4.2 V. Lithium batteries should also have a lower voltage limit when discharging. When the cell voltage is lower than 2.4 V, some materials begin to be destroyed. And since the battery will self-discharge, the longer it is discharged, the lower the voltage will be. It is therefore better not to stoper discharge to 2.4 V.

During the period when a lithium battery is discharged from 3.0 V to 2.4 V, the energy released is only about 3% of the battery capacity. Therefore, 3.0 V is an ideal discharge cut-off voltage. When charging and discharging, in addition to voltage limitation, current limitation is also necessary. When the current is too high, the lithium ions do not have time to penetrate the storage location and will accumulate on the surface of the material.

Baidu Encyclopedia--Lithium Battery

Baidu Encyclopedia--Lead Acid Battery

8 books. According to information from Pacific Automotive Network, lithium iron phosphate battery is a lithium ion battery that uses lithium iron phosphate (LiFePO4) as the positive electrode material and carbon as the negative electrode material. The nominal voltage of the single cell is 3.2 V and. the charging cut-off voltage is 3.6V. At 3.65 V, a lithium iron phosphate battery with ten kilowatt hours of electricity weighs eight pounds. When charging an electric vehicle's lithium battery for the first time, it must be charged using a special charger provided by the lithium battery manufacturer. When charging, the charger output port should be connected to the battery first, then to the charger. Must be connected to power supply. Lithium iron phosphate batteries have an operating voltage. They have the advantages of high energy density, long service life, good safety performance, low self-discharge rate and no memory effect.