Graphene battery is better than lead-acid battery

Which is better, graphene battery or lead-acid battery? When it comes to electric vehicle batteries, everyone is familiar with nothing more than these three types of batteries, lead-acid batteries, lithium batteries, and graphene batteries that have been popular in recent years. So, what kind of battery do you think electric vehicles will choose in the future when the new national standard is officially implemented? On this issue, let's first look at the characteristics of each battery. Lead-acid batteries are mainly composed of tubular positive plates, negative plates, electrolyte, separators, battery tanks, battery covers, poles, and liquid injection covers. The electrode is made of lead and lead oxide, and the electrolyte is an aqueous solution of sulfuric acid. The important advantages are stable voltage and low price, but the disadvantages are low specific energy, relatively short service life and frequent maintenance. It is undeniable that in the current market, lead-acid batteries occupy a dominant position. Generally speaking, lithium batteries mainly include four components: positive electrode, negative electrode, separator and electrolyte. Cathode materials are generally lithium-rich layered compounds. The most common commercial cathode materials currently include lithium cobalt oxide (LiCoO2), lithium manganese oxide (LiMn2O4), lithium iron phosphate (LiFePO4), and ternary materials (LiMnxCo1-x- yNiyO2) and so on. Compared with lead-acid batteries, lithium batteries are relatively light, easy to carry, have higher energy density, and have a much longer lifespan, but they are more expensive and have poor stability. The so-called graphene battery can be understood as the black gold battery we usually say, which is a new energy battery developed by using the characteristics of lithium ions to quickly and massively shuttle between the graphene surface and the electrode. As currently the thinnest, hardest, and strongest electrical and thermal conductivity of a new type of nano material. At the same time, the weight of the graphene polymer battery is only 50% of the traditional battery, and the cost will be 77% lower than that of the lithium battery. From the performance point of view, it takes less than 10 minutes to charge an all-graphene lithium battery once. (The general industry directly refers to the graphene-based energy storage materials of graphene doped with electrodes directly as graphene batteries, not all graphene.) From the point of view of characteristics, the overall performance of graphene batteries is the best, but why not Become dominant? In the application of graphene in batteries, it is important to combine with silicon in the negative electrode of the battery to replace the original graphite, which can increase the overall capacity and charging speed of the battery, but the performance improvement effect is limited. On the other hand, although many companies have launched black gold batteries, most of them are in the stage of exploration in this field, and their prices are relatively high, so this is one of the reasons why they have not been widely used. In addition, graphene pollution is more serious, and a large amount of sulfuric acid is used in the processing of ink, and the processing is also very troublesome. Simply put, first, price; second, technology; third, troublesome. Let us look at the introduction of the new national standard, which has clear regulations on the speed and weight of electric bicycles, which means that large lead-acid batteries will gradually lose the market, and small lead-acid batteries will usher in certain development in a short time. However, with the advancement of environmental protection rectification, lead-acid batteries will also transition to lithium batteries, and lithium electric vehicles will inevitably usher in a wave of outbreaks. Someone will say again, what about graphene batteries? Although graphene batteries have many advantages that lead-acid batteries and lithium batteries do not have, if they want to become dominant, their technology must be developed through breakthroughs. Therefore, I am personally more optimistic about the application of small lead-acid batteries and lithium batteries in the future new national standard electric vehicles. Compared with lead-acid batteries, lithium batteries have a higher average voltage and higher energy density. In other words, batteries of the same size have more lithium batteries. In addition, lithium batteries are relatively lightweight, easy to carry, and have a relatively long life. In addition, lithium batteries are more adaptable to high and low temperatures, are less affected by temperature, and are more environmentally friendly. Of course, lithium batteries also have three shortcomings. Their safety and stability are relatively poor. If they are not handled properly, they are prone to explosion risks. In addition, lithium batteries cannot be discharged at high currents, and processing requirements are high, and the cost is higher. Compared with lithium batteries, lead-acid batteries are relatively cheap and more acceptable to the public. In addition, the high-rate discharge performance of lead-acid batteries is better. The most important thing is that the recycling price of lead-acid batteries is higher than that of lithium batteries. However, lead-acid batteries also have their own shortcomings. For example, heavy metals are easy to cause environmental pollution; compared with lithium batteries, lead-acid batteries have lower energy density; and their service life is less than that of lithium batteries. Although lithium electric vehicles have many advantages, at present, lead-acid electric vehicles are the main factor. The important factor is imperfect technology. Although some lead-acid giants and electric vehicle giants have begun to develop lithium-ion products, they are Many companies are constantly exploring and exploring new fields, and the initial products may not reach the stage of maturity. Disclaimer: Some pictures and content of the articles published on this site are from the Internet. If there is any infringement, please contact to delete.