In addition to the brand of electric vehicles is the focus of attention, Electric vehicle battery quality is also what most people pay high attention. Electric vehicle battery manufacturing industry can be said to be very marketable. Lead-acid batteries and lithium-ion batteries are common batteries used in electric vehicles. Each of them has its own advantages and disadvantages.
Lead-acid battery life is generally about 2 years, while lithium battery life is more durable, mostly 4-6 years; Lead-acid battery cycle full charge and discharge is generally within 300 times, while lithium ion batteries, on the other hand, are fully charged and discharged cycle life is more than 800 times.
Take moped scooter battery for sample, compared with 72V 45Ah lithium ion battery weighing only 19kg, the lead acid battery battery is about 60kg, which has heavier weight and larger volume. Lithium-ion trolley is designed to be detachable and easier to ride and carry.
3.The market price/performance-to-price ratio:
The current market for mainstream lead-acid batteries is much lower, and lithium batteries are more expensive, around 2 times higher. But the battery cycle life is around 3 times longer,At the same time, the lithium battery quality guarantee period is also longer than lead acid battery.
The same 72V 150Ah battery has the same range at full charge, depending on factors such as speed and motor power. Of course, due to the lead acid battery is heavier and have to carry more load, so driving range will be less than the golf cart with lithium ion batteries.
After the state promulgated the “Conditions of access to the lead-acid battery industry”in 2012, the lead-acid industry has been reorganized and consolidated, and most manufacturers have adopted cadmium-free and arsenic-free green production, more environmental protection, more energy-saving, only in the recycling process, if the improper method may cause pollution.Lithium battery in the production, recycling, relatively more green.
With the introduction of the new national standards for electric bicycles, lightweight and high energy density batteries have become an inevitable trend of power and energy, and lithium batteries are undoubtedly the best choice and the trend of development.
If you look at the 6 differences above, you’ll see that lithium battery electric vehicle seems to have an advantage over lead acid batteries which are not easy to operate, bulky and durable. Of course，SmartPropel Lithium ion batteries have a higher average voltage and energy density than lead acid batteries, in other words, they have more capacity than batteries of the same size. In addition, lithium-ion batteries are relatively light, portable and relatively long-lived. In addition, the lithium battery high and low temperature adaptability is stronger, and more green environmental protection.
Of course, lithium batteries have disadvantages. The lithium battery have high production requirements, the cost is higher. Lead-acid batteries are cheaper and more acceptable to the public. In addition, the lead-acid battery high rate discharge performance is better.
However, lead-acid batteries have their own disadvantages, such as the environmental pollution caused by heavy metals compared with lithium batteries, lead-acid batteries have lower energy density; and their service life is not as long as lithium batteries.