Lead-Acid and Lithium-Ion Batteries
Both LI and LA batteries use same principle for storing and providing energy but they have some differences and there are many reasons leading LI batteries to gain fame and replacing the LA batteries:
- High efficiency
- Charging time
- BMS connected
- Light weight
- No maintenance
- Longer charge
- Long cycle life
- High energy density
- DoD reaches 95%
The only area that LA batteries perform better than LI batteries is cold climate although the low temperature can cause significant reduction to stored battery capacity.
The LI batteries are not sensitive to capacity reduction but they have problem to recharging in sub-zero temperatures ranges.
The weight and size of lithium batteries are much lower in comparison to lead-acid batteries with the same capacity.
LI batteries provide 80-100% of stored capacity, regardless of the rate of discharge while lead-acid batteries typically provide less usable energy with higher rates of discharge close to 50% only.
LA batteries are cheaper and are easier to install comparing to Ll battteries.
Depth of Discharge indicates the maximum energy of a fully charged battery that can be used without recharging.
Cycle life is the number of charging and discharging cycles a battery can undergo without compromising its performance.
Dangers of Batteries
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All types of batteries hide risks during usages.
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Overcharging may lead to an explosion.
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Sulfuric acid in the LA battery is highly corrosive, and there is a chance of leakage.
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If overcharged, hydrogen and oxygen gases may evolve, leading to an explosion.
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In LI batteries, a high chance for thermal runaway and this has the potential to trigger a battery explosion.
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