The battery breaks through the mobile phone every year or is it a day: Why?

New breakthroughs are coming again?

Northwestern University scientists recently announced that they had found a temporarily named "covalent organic frameworks," the new material is said to be applied if the battery or super capacitor, can effectively enhance small laptop , up to the charging speed and battery life of electric vehicles. This organic crystalline material has many pores and is said to be very suitable for storing energy. After filling the conductive polymer, its capacitance performance is improved.

So how powerful is this “covalent organic framework”? Researchers say it can withstand tens of thousands of cycles of charge and discharge, the ability to store energy is 10 times that of ordinary technology, and the charging speed has increased by up to 15 times.

Scientists are still looking for the possibility of commercializing this technology, but they are confident that it will be applied.

This is not to doubt or even deny the efforts of scientists, because any technological exploration and accumulation is extremely valuable. However, when we saw these "battery technology breakthroughs" news, we are no longer excited.

As long as you are a friend who is concerned about technology news, as long as you review the reports you have seen, you may realize that scientists have had so many kinds of research results. Yes, Northwestern researchers are not the only team to announce a breakthrough in battery technology this year.

As early as January of this year, the domestic scientific team made progress in graphene, and developed an electric vehicle battery that can last for 35 kilometers with only seven seconds of charging.

At almost the same time, the head of the US Department of Energy's Advanced Energy Alternative Research Program also said in an interview: "We have made significant breakthroughs in the battery field."

Dyson, who is very familiar with everyone, has also announced that their Sakti3 solid-state battery has soared the electric vehicle mileage to 800 kilometers. The founder James Dyson said that their achievements "current battery technology can not be achieved."

In the past few years, we have seen too many similar news, and the various principles are different. It is a pity that even if it is a smartphone or a laptop or an electric car, their progress in battery life or charging time can only be small, and it may not be the battery's credit, but it is optimized in all aspects. result.

Why have there been so many breakthroughs, and the battery technology that ordinary people can enjoy is still stagnant?

Human beings are so ignorant

“Although there have been countless technological breakthroughs in the last decade, these advances have not been able to bring real improvements in cost and energy storage as promised.” Scientists at the Massachusetts Institute of Technology In the article, we admit our current dilemma.

This kind of thing is so common, we must think that humans already know it very well, but it is not.

“The biggest difficulty in developing a better battery is that our understanding of the technology itself is still very poor. Changing one part of the battery – for example, switching to a new one – will result in a lot of Unexpected problems arise, and some of them can't be discovered without years of testing," the scientist wrote.

Even though time has passed more than 100 years, humans still have not established a complete functional model of a lead-acid battery. In other words, we simply don't fully understand the chemical mechanisms inside the battery.

As MIT scientists say, because we know very little, it takes many years for these new batteries to be fully tested.

Chen Hao really can't do it.

Then you may ask, battery technology has been researched for countless people for many years, and there are countless "breakthroughs" every year. How many years have passed, isn’t the time enough? Electronic equipment is now so popular, and it is reasonable to say that demand is so high that it is so explosive. Is there any more practical difficulty? It is indeed, and it is also very tricky.

The first is the cost issue. The battery market is highly cost sensitive because most of the products it involves require high yields.

The cost of the battery itself is already high, after all, it can be said to be one of the most expensive parts in the smartphone. Higher-performance batteries are not without, but the materials they use determine that these batteries are cheap. Even so, the improvement brought by these high-performance batteries is not necessarily large enough to make consumers willing to pay more.

For those startups and research teams with technological breakthroughs, the battery market is too difficult.

It takes you a lot of time to build a new battery that can be mass-produced, and then spend years evaluating its actual performance and risk. Then, you need capital to expand production, and then you have to find ways to put your products into a market that is very cost sensitive. In any case, it is difficult to achieve a satisfactory return on risk investment, and in fact there is no actual case of fully meeting expectations.

The other is the last point: Where are the dazzling technological breakthroughs? Although you can see the pride of the R&D team leaders at the end of each related report, they say they are confident in the commercialization of new technologies, but the reality is that 95% of battery technology labs break through Can't actually convert to a commercial product.

This means that the vast majority of new products in the news that have been promising have never really been born. Even with a button battery, its performance in the laboratory, and the performance of the mass production battery are very large, very different.

In fact, in the past 20 years, almost no new battery-related company has succeeded. This leads to the cruel fact that even if you have the best technology and development plan, you can hire few senior engineers who have real experience in battery practicalization and commercialization.

Keep waiting

In fact, the battery performance is not completely unimproved. According to the calculation, there is a 5% increase every year. However, we all know that this is not a real breakthrough, but it is only the continuous improvement of the existing technology.

The problem of the battery must be overcome, but we must be psychologically prepared. The process of reborn will be much more difficult than other fields.

Fortunately, after a long period of adaptation, we are very accustomed to the existing battery technology. Even if the smartphone is charged every day, everyone will not feel how inconvenient.

No one can tell when the change will come, and we can only wait until then.

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