Why are lead-acid batteries becoming less common in modern EVs?

The choice regarding lead-acid batteries becoming less common in modern EVs primarily revolves around their weight and energy density. Lead-acid batteries are significantly heavier than their alternatives, such as lithium-ion batteries. This added weight can lead to reduced efficiency in electric vehicles, as more energy is required to move the vehicle, ultimately affecting its range and performance. Additionally, lead-acid batteries have a lower energy density, meaning they store less energy for a given weight compared to lithium-ion batteries. This makes them less effective for the demands of modern electric vehicles, which require lightweight components to maximize efficiency and performance.

In contrast to this choice, other options do not align with the current trends in battery technology. For instance, while lead-acid batteries have historically been considered cost-effective, the decreasing costs and advantages of lithium-ion technologies have changed the landscape. Furthermore, lead-acid batteries generally do not charge faster than newer battery technologies; in fact, lithium-ion batteries typically offer faster charging times. Finally, in terms of lifespan, lead-acid batteries tend to have a shorter cycle life compared to lithium-ion batteries, which is another key reason for the shift away from using them in modern electric vehicles.