Which is better, lithium battery or lead-acid battery?
For any electronic product that uses "electricity" to provide energy, the core power storage components are "batteries", such as our common mobile phones, laptops, electric vehicles, etc., which rely on batteries to provide energy to provide services for people , And since the battery is so important, in recent years, great breakthroughs have also been made in battery technology.
Take, for example, our most battery-dependent electric vehicles. A hundred years ago, there were lead-acid battery electric vehicles. With the popularity of electric vehicles in recent years, relevant scientific researchers have never updated battery technology. Stop, the batteries currently being used include: "lead-acid batteries, lithium batteries, nickel-hydrogen batteries, zinc-air batteries, graphene batteries" and so on. The most widely used in electric vehicles are lead-acid batteries and lithium batteries. .
Especially for lead-acid batteries, my country is the world’s largest producer of lead-acid batteries and the largest production and sales market for lead-acid battery electric vehicles. Lithium batteries, as a rising star, have performed very well in recent years, especially lithium batteries. Since being used in electric vehicles, it has been interpreted as a substitute for lead-acid batteries. However, this is not the case. Then, it is said that lithium batteries are better. Why are lead-acid electric vehicles more popular at present? Know the difference and you will understand.
How are lithium batteries better than lead-acid batteries?
It is said that lithium batteries are better than lead-acid batteries, and as a rising star, there must be something better than the former, otherwise there is no need to be used. Then, how is lithium battery better than lead-acid battery? There are probably these points;
The first is the difference in durability. The biggest disadvantage of electric vehicle batteries is that they are not durable enough. The reason why lithium batteries can become a rising star is that they have changed the durability of lead-acid batteries. The number of charge and discharge of lead-acid batteries is about 350. The number of charging and discharging of a lithium battery is about 500 to 1000. In theory, the life of a lithium battery is 2 to 3 times that of a lead-acid battery.
Secondly, there is the difference of lightness. Because of the requirements of the new national standard, electric bicycles must be limited to 55 kg in weight if they want to meet the new national standard. This also gives a great opportunity for lighter lithium batteries. The structure is different from that of a lead-acid battery. For a battery of the same capacity, the volume of a lithium battery is only one-third of that of a lead-acid battery, and the weight is only two-fifths of a lead-acid battery.
Finally, there is the difference in endurance. Endurance is very important for electric vehicles. When we buy electric vehicles, lithium batteries are generally equipped with high-endurance electric vehicles. For example, many electric vehicles now have a battery life of more than 100 kilometers. Basically, they are all lithium battery electric vehicles.
Lead-acid battery electric vehicles are still the mainstream of the market. As we have seen above, lithium batteries have three advantages over lead-acid batteries, and from the point of view of battery life and durability, these are the points of most concern when selecting electric vehicles. This is no wonder Many people think that lithium battery electric vehicles are better than lead-acid battery electric vehicles, and even think that lithium batteries will replace lead-acid batteries.
However, from the current sales market, the use of lead-acid batteries in two-wheeled electric vehicles is actually the mainstream. It is conservatively estimated that at least 60% of electric vehicles are using lead-acid batteries, while lithium batteries are more When it is used in four-wheel electric vehicles, such as low-speed electric vehicles, there are regulations that prohibit the use of lead-acid batteries, and lithium batteries must be used.
