How good are lithium battery electric vehicles?
As Tesla, BYD and other car companies have launched electric vehicles, lithium battery electric vehicles have entered our lives. Why are lithium battery electric vehicles the future, and how can lithium battery electric vehicles enter the lives of ordinary people? Today, CSIT electric vehicle lithium battery manufacturer will tell you about the advantages of lithium battery electric vehicles.
- Advantages
Long life: High-quality 5C - 10C lithium Battery Cells have a cycle life of 3,000 times and a usage time of more than 8 years, far exceeding the lead-acid battery whose capacity begins to decay after 2 years, greatly reducing replacement costs and frequency.
Lightweight and portable: The energy density is 5 times that of lead-acid batteries. With the same capacity, lithium batteries are smaller and lighter, making electric vehicles more flexible to control and easier to carry and park.
Excellent power performance: 1C charging and 1-10C discharging characteristics, achieving fast charging and stable power output. Due to the memory effect, 25% of the power of lead-acid batteries is difficult to release, and the capacity utilization rate is much lower than that of lithium batteries.
Fast charging and high efficiency: According to the 1C charging characteristics, the lithium battery pack can be fully charged in 1 hour. For example, a 20AH lithium battery with a 7A charger can be fully charged in 3 hours, while lead-acid batteries cannot be charged quickly. After 2 years, it often takes 8 hours to charge.
No memory and convenient: No activation required, no memory effect, after being placed in dormancy, it can be activated after 3-5 charge and discharge cycles. It can be 100% discharged and is flexible to use, unlike lead-acid batteries, which need to retain power to protect life.
Excellent battery life: The modified car has a residual power when the speed exceeds 60 kilometers per hour, and it can be fully charged in 5 hours. However, the battery of lead-acid electric vehicles decreases in one year, and the battery needs to be replaced in two years.
- Disadvantages
Higher price: The cost is higher than lead-acid batteries, resulting in a relatively high vehicle selling price.
Safety issues: Overheating, overcharging, or physical damage may cause fire or explosion.
Charging time: Although it supports fast charging, it still takes longer than traditional fuel vehicles to charge, which may be inconvenient when you need electricity urgently.
Maintenance and protection requirements: The circuit needs to be protected to prevent over-charging and over-discharging, which increases the complexity of maintenance.
High and low temperature usage restrictions: Performance is affected under extreme temperatures and requires special processing to adapt to the environment.
Weight and volume: In applications such as electric vehicles where long battery life is required, the total weight and volume of the battery pack still need to be considered.
Technology maturity: Not as mature as lead-acid batteries in some applications such as high-power electric vehicles.