Where can the new battery not be improved?

Where is battery technology difficult to break through?

Where is the battery skill hard to break?

Electric cars, mobile phones, tablet computers, and mobile power sources now choose lithium ion because of its recycling function and high-capacity battery storage. The atomic number of lithium is 3, which means there are 3 protons, which is the lightest alkali metal element. , Which makes it the most suitable method for preparing negative electrode materials for removable batteries with known information. It is smaller, lighter, and has a higher energy density than earlier nickel batteries. But it also has many problems, the most important of which is fever. In the process of charging and discharging lithium batteries, a large amount of heat will appear in high-density spaces.

The number of lithium ions in lithium batteries is fixed. If you want to extend the service life of the battery, you must add a certain amount of lithium ions, but this means that the equipment is heavier, has a higher calorific value, and has a higher thermal explosion potential. If you want to be safer or more portable, you have to sacrifice the number of batteries and battery life.

Therefore, the biggest factor restricting the development of batteries is still data, including positive and negative electrode data and electrolyte. There are several positive data, such as lithium cobalt acid, lithium manganese acid, lithium ferrite and their mixtures, etc. The positive data directly affects the unit power, and now these data can no longer be said to meet the needs of this era.

It is fundamentally broken, so I hope to develop new batteries and discover new materials.Of course, objectively speaking, current mobile phones do not require criminal batteries. The configuration of the mobile phone itself is too high, and the power consumption of the processor is also very important. On the one hand, and now, the resolution of mobile phone screens is getting higher and higher, 1080p has now become the standard, screens near 2k will be promoted in the future, and 4K screens may also appear on mobile phones. Now that it has exceeded the needs of early people, the increase in resolution and the burden of GPU are also increasing. In this way, the mobile phone really becomes an electronic tiger. The combination of these factors makes us feel that we do not have enough batteries and battery life.

Going back to the problem itself, another reason why the battery life of mobile phones is poor is that in addition to considering the basic properties of chemistry, any company that wants to mass produce it is a very important consideration. The elements required for battery storage, such as nickel and lithium Large-scale mining, and rare earth elements, or, for example, man-made elements, the output and price can not supply civilian science and technology, so it is rich as a high-energy battery, such as a 2K screen mobile phone can let you use it for 10 days, photoelectric tube The price is 200,000 yuan, however, it will be discarded.

In summary, the support of large companies that can drive battery technology innovation is also a relatively important link. We can see that lithium batteries have not changed much since they were invented. Enviassystems, a company specializing in the production of high-energy batteries, was founded in 1995 more than ten years ago. In 2007, the battery storage capacity only doubled. Since then, it has not risen by more than 30%. Not surprisingly, even John Goodenough, a scientist in the field of modern batteries and the father of lithium iron phosphate, laments that batteries have encountered a bottleneck. Some scientists in this field even say that the development of lithium batteries is nearing completion, and there is no obvious breakthrough yet.

Although many researchers are now turning their attention to nanoscience, Nanyang Technological University, Xiaodong Chen et al., came up with a new lithium battery using titanium dioxide nanotubes as the anode, which can be filled with 70% of the electricity in two minutes, graphite The ene, which has caught fire in recent years, can provide more. However, these skills, from the laboratory to the commercial use, will go through a long period of time. Under the premise of being divided by several big players in the global mobile phone market and having a very complete mobile phone production line, several big eyes and small eyes look at each other, whether it is Whoever chooses a revolutionary skill with considerable capital and bears huge risks is very important. Once lost, it may accumulate permanent losses. These factors will have a great impact on the upgrade of mobile phone batteries.

Is there really no way to bypass the battery technology bottleneck? We really should not be too disappointed. In fact, the energy density of lithium batteries has been increasing in recent years, but it is usually only on the order of a few percentage points, which is beyond the ability of ordinary people.