What is the difference between a lithium-ion battery and a battery?

Quality and volume

Usually, the lead-acid battery pack weighs 16-30 kg and has a large volume. The lithium battery generally weighs 2.5-3.0 kg and has a relatively small volume, so it is easy to ride and easy to carry. From the quality point of view, the quality of the two is difficult to define, but consumers can buy a good quality battery produced by a regular manufacturer according to their actual needs.

Battery capacity

The capacity of a lithium battery is generally 8-10 amps; the capacity of a lead acid battery is about 20 amps.

Driving kilometers

For example, the same 48V battery, in the case of full charge, lithium batteries and lead-acid battery electric cars can exercise 30-40 km, the speed is mainly depends on the size of the motor used.

Durability

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. Lead-acid batteries are generally used for deep charge and deep discharge within 400 times, and have a memory life 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. In terms of durability, the lithium battery has good vibration resistance. The battery in a fully charged state is safely fixed. It vibrates for 1 hour with 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.

Price, warranty period

The current mainstream battery in the market is 48 volts. If it needs to be replaced, the lead-acid battery is around 450, and the warranty period is 1 year; the lithium battery price is relatively expensive, it needs about 1000 Yuan, but its warranty period is 2 years.

Environmental aspects

In 2012, the state promulgated the “Leading Conditions for Lead storage battery Industry”. After that, the lead acid industry was re-integrated. Most of the manufacturers have adopted internalization into cadmium-free and arsenic-free green production, which is more energy-efficient and more environmentally friendly. In the process, if the method is improper, it may cause pollution; the lithium battery is relatively greener in terms of production and recycling.

A battery is one of the batteries. Its function is to store limited electric energy and use it in a suitable place. It works by converting chemical energy into electrical energy.

It uses a lead plate filled with sponge lead as a negative electrode, a lead plate filled with lead dioxide as a positive electrode, and 22 to 28% of dilute sulfuric acid as an electrolyte. When charging, electrical energy is converted into chemical energy, which is converted into electrical energy during discharge. When the battery is discharged, the metal lead is a negative electrode, which undergoes an oxidation reaction and is oxidized to lead sulfate; the lead dioxide is a positive electrode, and a reduction reaction occurs, and is reduced to lead sulfate. When the battery is charged by direct current, the two poles respectively produce lead and lead dioxide. After removing the power supply, it returns to the state before discharge to form a chemical battery. A lead storage battery is a battery that can be repeatedly charged and discharged, and is called a secondary battery. Its voltage is 2V, usually three lead batteries are used in series, the voltage is 6V. The car uses six lead batteries in series to form a 12V battery pack. The lead storage battery should be supplemented with sulfuric acid after a period of use to keep the electrolyte containing 22-28% of dilute sulfuric acid.

A lithium battery is a type of battery using a lithium metal or a lithium alloy as a negative electrode material and using a nonaqueous electrolyte solution. The earliest lithium battery came from the great inventor Edison.

Due to the very active chemical properties of lithium metal, the processing, storage and use of lithium metal are very demanding on the environment. Therefore, lithium batteries have not been used for a long time.

With the development of microelectronics technology in the twentieth century, the number of miniaturized devices is increasing, and high requirements are placed on power supplies. Lithium batteries have entered a large-scale practical stage.

It was first used in pacemakers. Since the self-discharge rate of the lithium battery is extremely low, the discharge voltage is gentle. It makes it possible to implant the pacemaker into the human body for a long time.

Lithium batteries generally have a nominal voltage higher than 3.0 volts, making them more suitable for use as integrated circuit power supplies. Manganese dioxide batteries are widely used in computers, calculators, cameras and watches.

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