What are the differences between lead acid batteries and lithium batteries for electric vehicles?

Introduction What are the differences between lead acid batteries and lithium batteries for electric vehicles? The difference between lead-acid batteries and lithium batteries for electric vehicles is as follows: 1. Different concepts lead-acid batteries (VRLA) are a

What are the differences between lead acid batteries and lithium batteries for electric vehicles?

The difference between lead-acid batteries and lithium batteries for electric vehicles is as follows:——

1 Different concepts

Lead-acid battery (VRLA ) East. a kind of electrode mainly composed of a battery composed of lead and its oxide, and the electrolyte is a solution of sulfuric acid.

Lithium battery is a type of battery that uses lithium metal or lithium alloy as the negative electrode material and uses non-aqueous electrolyte solution.

2. Different durability

Lead-acid batteries are generally deeply charged and discharged within 300 times, have memory, and have a lifespan of about two years. And there is liquid in the lead acid battery. After a period of consumption, the liquid needs to be replenished;

Lithium batteries have strong durability, slow consumption, can be charged and discharged more than 500 times. and do not havefrom memory. The general lifespan is 4 to 5 years.

3. Different volume and quality

Typically, lead acid batteries weigh between 16 and 30 kg and are larger

Lithium batteries generally weigh between 2.5 and 3000 kg. 3 kilograms, the volume is relatively small.

4. Different prices and warranty periods

Lead-acid batteries cost around 450 yuan and the warranty period is 1 year

Lithium batteries are relatively expensive and; require It costs about 1,000 yuan, but the warranty period is two years.

5. Different battery capacities

The capacity of lead acid battery is about 20 amps; Lithium battery capacity is 8-10 amps.

6. Environmental protection is different

Lead-acid batteries contain pollution during the production process and may cause pollution if improperly recycled.

Beat themlithium teries are relatively polluting; green and environmentally friendly.

Baidu Encyclopedia - Lithium Battery

Baidu Encyclopedia - Lead Acid Battery

Lithium Battery Comparison and lead -acid battery is as follows:

1. The rated voltages are different: single lead acid battery 2.0V, single lithium battery 3.6V.

2. Different energy densities: 30WH/KG lead acid battery, 110WH/KG lithium battery.

3. The lifespan is different: lead-acid batteries have an average lifespan of 300-500 times, and lithium batteries have a lifespan of more than a thousand times.

4. Different charging methods: The charging method of lithium batteries is relatively fixed, using the voltage limiting and current limiting method, that is, a limiting threshold is given to both the current and voltage, whileThere are more charging methods for lead acid batteries.

Characteristics of lithium batteries

1. Lithium batteries are small in size and high in capacity: Lithium batteries are much smaller and are usually lead acid. acid batteries. At the same time, the weight of lithium batteries is much lighter than that of lead-acid batteries. However, the capacity of lead-acid batteries is only about 1/6. is much larger than that of lead-acid batteries, which means it can store more electricity.

2. Lithium battery has a long life: Since the capacity of lithium battery can store more energy, the battery life is much longer. At the same time, the light weight of the lithium battery itself consumes. less energy, which is why all electric cars now use lithiumOne of the mainmain reasons is the battery.

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