What's the difference between a lithium-ion battery and a storage battery?
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2022/10/09 11:37:36
1, weight comparison
Lithium battery is lighter, lithium battery capacity density is high, up to 192Wh/kg, the same weight and volume, the energy installed is more than times that of lead-acid battery, the current two-wheel electric vehicle needs a large endurance, only choose lithium battery is the best way.
2. Comparison of charging efficiency
Lithium battery charging efficiency higher, for three yuan 18650 lithium batteries, the maximum charging current is 0.5 C, generally in union 72 v24ah lithium batteries, the maximum charging current can be 12 a, of course, to the safety and life of lithium-ion batteries, the league of li-ion battery protective plate limits the maximum charging current, the current recommended maximum 6 a charging current, The 72V24Ah battery takes only four hours to charge
3. Comparison of life span
The life of lithium battery is longer, generally three yuan lithium battery, the cycle times is about 800 times, according to the general use of our electric vehicles, lithium battery can be used for at least 3 years. Here say the cycle is not said after 800 times 800 times the battery is completely discarded, but after the loop 800 times, its capacity can reach 60-70% of new battery capacity, if the capacity of the line continuation mileage can also higher than the user above the minimum line continuation, it still can continue to use, until the line continuation has been unable to meet the needs of users.
4. Comparison of performance and durability
Lithium-ion batteries can use more energy than lead-acid batteries of the same capacity. Compare 72V lead-acid batteries to lithium batteries. General lead-acid battery operating voltage is 63V-82V, the middle pressure difference is 19V. Take the alliance 72V lithium battery for example, 20 series of 18650 lithium battery, the single lithium battery operating voltage is 2.75-4.2V, 20 series is 55V-84V, in order to protect the safety and life of lithium battery, the alliance set the operating voltage is 58V-83.5V, the middle pressure difference is 25.5V, 6.5V more than the lead acid battery pressure difference. That's 34% more voltage range than lead-acid.
Broadly speaking, a lithium-ion battery of the same voltage capacity can have about a third more range than a lead-acid battery, and that's just counting the energy difference, not the weight loss. Battery is a kind of battery, its role is to store the limited electrical energy, in the right place to use.
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