The energy density of lithium-ion batteries falls under the range 125-600+ Wh/L whereas, for lead acid batteries, it is 50-90 Wh/L. This drastic variation is due to the fact that lead acid batteries are much heavier than lithium-ion batteries, which in turn results in less energy density. Lead acid batteries also need more space to fit in.
Lithium-ion batteries are lighter and more compact than lead-acid batteries for the same energy storage capacity. For example, a lead-acid battery might weigh 20-30 kilograms (kg) per kWh, while a lithium-ion battery could weigh only 5-10 kg per kWh.
When it comes to humidity exposure, lithium-ion batteries have better resilience than lead-acid. Lithium-ion batteries have a robust casing that is completely sealed, therefore, moisture does not get to the internal components of the battery.
Lead Acid Batteries Lead-acid batteries consist of lead dioxide (PbO2) and sponge lead (Pb) plates submerged in a sulfuric acid electrolyte. The electrochemical reactions between these materials generate electrical energy.
Yes. Depending on your target applications, you can substitute lead-acid batteries with lithium-ion batteries. Before swapping the batteries, ensure the lithium-ion battery is well-matched to the voltage system and the charging system. In some cases, you will need an external charger that is compatible with the lithium battery.
Disadvantages: Heavy and bulky: Lead acid batteries are heavy and take up significant space, which can be a limitation in specific applications. Limited energy density: They have a lower energy density than lithium-ion batteries, resulting in a lower capacity and shorter runtime.