-(2)Why do pure electric vehicles not use lead-acid batteries?

(2)Why do pure electric vehicles not use lead-acid batteries?
author:enerbyte source:本站 click438 Release date: 2023-06-27 09:01:23
abstract:
Next is volume. Due to the low battery density of lead-acid batteries, the volume of lithium ion is much smaller and lighter than that of lead-acid batteries under the same battery capacity. Generally, the volume of lithium ion batteries is 2/3 of the volume of Lead–acid battery, and the weig...

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Next is volume. Due to the low battery density of lead-acid batteries, the volume of lithium ion is much smaller and lighter than that of lead-acid batteries under the same battery capacity. Generally, the volume of lithium ion batteries is 2/3 of the volume of Lead–acid battery, and the weight is about 1/3 of the weight of Lead–acid battery. The reduction of weight can increase the endurance of electric vehicles by about 10%.

And then there is the lifespan. Although lead-acid batteries are obviously more mature and convenient in terms of recycling, their lifespan is generally only 400 times compared to lead-acid batteries with deep charging and discharging, and a lifespan of only about 2 years. With over 3000 cycles of discharge, the SOC can still reach over 70% The lithium ion battery with a service life of 3-8 years (under experimental conditions, after 5000 cycles of Lithium iron phosphate ion battery, the remaining capacity is 84; after 3900 cycles of ternary lithium ion battery, the remaining capacity is 66%) is obviously more suitable.

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