Which is better, lithium batteries or lead-acid batteries?

The lithium battery

Lithium battery is a kind of battery which is made of lithium metal or lithium alloy as negative electrode material and USES non-aqueous electrolyte solution. Lithium metal battery was first proposed and studied by gilbertn.lewis in 1912. In the 1970s, m.s. willingham proposed and began to study lithium-ion batteries. Due to the chemical characteristics of lithium metal is very lively, so that lithium metal processing, preservation, use, environmental requirements are very high. Therefore, lithium battery has not been used for a long time. With the development of science and technology, lithium battery has become the mainstream.

Lithium battery can be roughly divided into two categories: lithium metal battery and lithium ion battery. Lithium-ion batteries do not contain metallic lithium and are rechargeable. Lithium metal battery, the fifth generation of rechargeable battery, was born in 1996. Its safety, specific capacity, self-discharge rate and performance-to-price ratio are all better than lithium ion battery. Because of its own high technology requirements, only a handful of companies in a few countries now produce lithium-ion batteries.

We know that the electric car development in China already has more than 20 years, the energy conservation and environmental protection, and the advantages of convenient much people like, and disadvantages is obvious, the lack of life make electric cars in front of the motorcycle big brother always lift head, many experts and scholars also in hard study, thinking about how to change the kidney or kidney to make electric cars to regain confidence, among them the lithium battery is now a good solution, there is a big possibility of a repeat of the electric vehicle.

Lead-acid battery

Lead acid battery (VRLA) is a kind of battery whose electrode is mainly made of lead and its oxides, and whose electrolyte is sulfuric acid solution. Under the condition of lead-acid battery discharge, the main component of the positive electrode is lead dioxide, and the main component of the negative electrode is lead. Under charging condition, the main components of positive and negative electrodes are lead sulfate.

A single-cell lead-acid battery has a nominal voltage of 2.0v and can discharge to 1.5v and charge to 2.4v. In the application, 6 single-cell lead-acid batteries are often used in series to form a standard lead-acid battery of 12V, 24V, 36V, 48V and so on.

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Which is better, a lead battery or a lithium battery

With the update and iteration of battery technology of electric energy vehicle, the development of lithium battery is likely to rise from red flower and double stick to the leader of the community. But it's only going up. There is still a long way to go to replace the big brother lead-acid battery due to its performance, cost performance and other reasons, and big brother lead-acid battery is also making breakthroughs.

Today the weather is good, (accidentally said to leak) take you to see an officer to understand the safflower inside the battery society double stick (lithium battery) and the association eldest brother (lead acid battery) take care of a family kung fu bar, recently cloudy rain continuous, the results of your exam work don't forget to go home to collect clothes.

So let's start with lead-acid batteries:

Lead-acid batteries are the last thing in the family

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1: gold bell cover iron cloth shirt (hard!) Lead-acid boss has been in line with his strong Lead-acid batteries are easy to feed, so you can continue to use them after a little repair.

2: cabbage price (cheap!) The reason why the leader of lead can cross the battery society for many years and sit on the leader's position is because of this reason!

3: recycling and recasting (recyclable and reverse repair) lead-acid battery comes with recyclable skills. After being used out, you can go to the electric car store to exchange the old for the new, and you can exchange a new set of batteries after making up the price difference to minimize the loss, which is a great benefit to users.

Now that I have finished my studies, I would like to take a look at the disadvantages of lead-acid battery: large volume and weight, limited battery capacity, short life span, lead-acid battery is generally in deep charge and discharge 400 times or less, with memory, and the life span is about two years.

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1: ancestral light work (light weight, small size) since childhood light work into lithium battery and the market equivalent capacity of lead-acid battery, lithium battery volume is lead-acid battery volume 2/3, weight is about 1/3 of the weight of lead-acid battery. Lithium-ion batteries have more capacity than lead-acid batteries of the same size, and weight loss adds about 10% to the battery life of electric cars.

2: health durability (life expectancy) lithium battery is deep health, the average life of lithium battery is about 4 years, than the lead acid battery life is about 1.5 times higher, charge and discharge more than 500 times, the battery has no memory, strong earthquake resistance.

3: ancestral qidong exportation method (over charge resistance, good charge-discharge resistance) lithium battery since childhood through the odd eight pulse, make it under normal temperature, lithium battery can be continuously charged for 48 hours without the battery expansion, leakage, rupture and other accidents, the capacity remains above 95%. And under the special charger, you can charge and discharge quickly.

Lithium battery has many advantages, but its disadvantages are more obvious.

Lithium battery production cost is high, the production equipment expensive labor costs accounted for about 40% of the production cost, the price of lead-acid battery is about three times. Moreover, lithium batteries are not recyclable, so they can only be thrown away if they are worn out or buried in a place. After thousands of years, later generations will dig them out as antiques.

The most important problem is that lithium battery has fire and explosion safety hazards, especially in the case of consumers in the unsuspecting circumstances by unscrupulous traders led to the purchase of inferior lithium battery, in the electric vehicle this sealing condition is not very good, easy to damp lead to poor contact and other reasons may lead to the existence of safety hazards. But now the technical performance of lithium battery is also improving, is also using high security materials, there may be security risks also small make up meaningless worry, perhaps after a long time is the world of lithium battery may not be.

Is lithium battery or lead acid battery good? At this stage, it can only be determined by demand.