According battery.com.cn news, most of the current market to sell electric car battery is a lithium-ion batteries and lead-acid batteries, while many consumers to buy electric car battery I do not know how to start to buy, for the problem of the battery is small plait Everyone has sorted out some differences between lithium-ion batteries and lead-acid batteries. I hope everyone can help you.
1, battery capacity
The lead-acid battery capacity is about 20 amps; the lithium battery capacity is 8-10 amps.
2, driving kilometers
The same 48V battery, in the case of full charge, lead-acid batteries and lithium-ion battery electric vehicles can travel 30-40 km. The speed depends mainly on the size of the motor used.
3. Price and warranty period
At present, the mainstream battery on the market is 48 volts. If it is replaced, the lead-acid battery is about 450 yuan, and the warranty period is 1 year. The price of the lithium battery is relatively expensive, and it needs about 1,000 yuan, but the warranty period is two years.
4, volume, quality
Generally, the lead-acid battery pack has a weight of 16-30 kg and a large volume; the lithium battery is generally 2.5-3 kg, and the volume is relatively small, so the ride is light and convenient to carry. As far as quality is concerned, it is difficult to define the two, and consumers can purchase good quality brand batteries produced by regular manufacturers according to their own needs.
5, environmental protection
After the state promulgated the "Leading Battery Industry Access Conditions" in 2012, the lead-acid industry has undergone restructuring and integration. Most of the manufacturers have adopted internalization into cadmium-free and arsenic-free green production, which is more environmentally friendly and more energy-efficient, only during the recycling process. Improper use may cause pollution; lithium batteries are relatively greener in terms of production and recycling.
6, durability
Lead-acid batteries are generally deep and deep-discharged within 400 times, with memory and life expectancy of about two years. If you are using a maintenance-free lead-acid battery, you need to be aware that the battery has less water loss, and you do not need to add distilled water during use. Lithium batteries are more durable, consume less, charge and discharge more than 500 times, and have no memory. The general life expectancy is 4-5 years. In terms of durability, the battery has good vibration resistance, and the fully charged battery is safely fixed. It vibrates for 1 hour with an amplitude of 4 mm and a frequency of 16.7 Hz. There is no leakage, no battery expansion and rupture, and the open circuit voltage is normal; Good chargeability, 25 degrees Celsius, fully charged battery 0.1CA charge for 48 hours, no leakage, no battery expansion and rupture, open circuit voltage is normal, capacity retention rate is above 95%; high current resistance, fully charged state The battery 2CA is discharged for 5 minutes or 10CA for 5 seconds, and no conductive portion is blown, and there is no appearance deformation.
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