However, Chen Weidong is not worried about patents.

They have a little friendship with Toyota, and there should be room for negotiation.

Even if the other party does not give an inch, if they have to use patents to card them in hydrogen energy, then they will do it directly, anyway, they are not the only ones who have patents, Infinity has a huge number of patents in electronics, machinery, materials, etc.

When the time comes, no one should think about it.

Seeing Chen Weidong bowing his head and being silent.

There was silence in the conference room.

Researchers in several departments are waiting for him to make a final decision.

The development direction of the company over the years has always been guided by Chen Weidong, and there has never been any deviation.

Even if you look at the world, Infinity is definitely one of the best companies in terms of commercialization of scientific research and technology.

Didn't blindly enter a certain field as soon as he got rich and his brain was hot like other company bosses, and finally the project died, resulting in a great waste of funds.

Therefore, whether it is an electric car or a hydrogen energy vehicle, as long as Mr. Chen decides, they will do everything they can to do it well.

Chen Weidong's mind came to a trance, and he smiled and said: "Everyone thinks that the development of electric vehicles is more direct and trouble-free, and there are various concerns about hydrogen energy vehicles, which is completely understandable." ”

"After all, the storage of hydrogen is indeed a worldwide problem."

However, I don't know if you have heard the term "energy closed loop"? ”

Many people heard the term for the first time, and their faces were puzzled, but some researchers were thoughtful.

Chen Weidong smiled and continued: "Many of us do not recognize trams as new energy, simply because the electricity used by trams is not entirely renewable, and most of it needs to be generated from fossil fuel power generation. ”

"So, if we think differently and use solar energy to generate electricity, and then produce liquid hydrogen by electrolysis of water, and then store the hydrogen and use it in hydrogen energy vehicles, is it possible to achieve this?"

Fang Weimin's eyes lit up, and he spoke a little stumbling excitedly: "This is simply the most perfect energy solution!" Solar energy is a renewable unlimited energy source, using it to produce liquid hydrogen can reduce the cost to a very low level, crushing the high cost of hydrogen production in island countries, as long as we solve the problem of hydrogen storage and transportation, we can achieve a real energy closed loop! But, Mr. Chen, do we have such a high level of solar technology? ”

Solar energy does have many advantages, but its photoelectric conversion efficiency is also really low.

"Haha! Chief Engineer Fang, we have this technology for a long time! ”

Zhao Gong opened his laptop with a smile, then entered a string of passwords and clicked on one of the folders.

"As we all know, monocrystalline silicon solar cells are a traditional battery model, and they are also one of the earliest research topics we carried out."

"The best laboratory level in the world is now 28 percent effective conversion rate, and our research in this area was carried out relatively early, so we reached the theoretical limit of 33 percent eight years ago, and then turned to the research of concentrated multi-junction solar cells."

Fang Weimin was shocked by the statistic he said, he only joined Infinity in 2003, but he never expected that the company's research on solar energy had reached such an extent before that.

This achievement is simply amazing, and it is completely proud!

However, he knows that the conversion efficiency of monocrystalline silicon and polycrystalline silicon solar energy is limited, and the cost of these planar solar panels is generally high, and it is not of practical value, so it will certainly not be used as the focus of energy development.

"In order to prevent sunlight reflection and maximize the use of solar energy, we have passivated the surface of the crystal."

Zhao Gong clamped a tiny projector to a computer screen and projected the picture onto the wall so that everyone could see his demonstration.

Chen Weidong had already read the relevant information, but he still kept smiling, without the slightest hint of urging.

These achievements are the result of researchers who have been immersed in scientific research for ten years.

Even if it is just encouragement, he must use the most focused expression to express his heartfelt appreciation to these scientific and technological workers.

Scientists are not just alone, they also crave glory, recognition and understanding.

Zhao Gong occasionally looked at Chen Weidong and found that he looked like he was listening with relish, and his mood was even higher.

Each research project is described in great detail.

"Concentrated multi-junction solar cells, after the unremitting research of our African base and solar energy research institute, the results are also very gratifying."

Zhao Gong opened a presentation document, which was a data model made by supercomputer calculations.

They usually do research based on design drawings and related data, and in order to give Chen Weidong and Lin Zeju a more intuitive feeling, they made this animation demonstration.

Chen Weidong cheered up and listened to him with real attention.

In the picture is a square panel with a number of condenser lenses connected into a single unit, each about 30 centimeters in diameter.

Underneath is a layer of alloy film.

At the point where the light of the lens is focused, silicon wafers are inlaid with a size of several millimeters.

At the bottom, there is a large heat dissipation device.

"This is a concentrated multi-junction solar cell developed by us, because of the use of multi-layer alloys, ion implantation technology, on the same thickness of 20 millimeters, stacked with three layers of solar energy conversion layers."

"It can absorb three different solar energy outputs: visible sunlight, invisible ultraviolet rays, and infrared rays, and the conversion rate has reached an astonishing 52 percent, which greatly breaks through the bottleneck of modern technology that can be achieved at present."

"With the same 1,000-fold focus, the power output of one square meter of solar panels can reach 1.4 kilowatts."

"One square kilometre of solar power units can provide about one million and five kilowatts of electricity per hour."

"If there are 100,000 square kilometers and all of them are used for solar energy, it can almost meet the electricity demand of the whole country!"

The more he talked, the more excited he became, and finally walked to the conference room under the country map, pointed to a location, and said:

"In the northwest of our country, there are a large number of wasteland deserts, which can be developed as solar power stations."

"The northwest region, with scarce rainfall, 3,000 hours of sunshine per year, and high intensity, is an ideal location for solar power plants."

Lin Zeju laughed: "100,000 square kilometers! Then let me ask, what is the cost price of one square meter of concentrated multi-junction solar cells? ”

Zhao Gong was speechless for a moment, stunned for a long time, and then sighed.

At present, even the most common flat panel solar cells have a price of more than 3,000 yuan per square meter.

The cost of this special concentrating solar cell was more than 100 times that of ordinary solar cell chips at the earliest!

Although after eight years of improvement, the manufacturing cost has dropped again and again, and they have also developed a series connection technology in which several solar panels share a wafer panel, but the cost per square meter will still not be less than tens of thousands of yuan.

In terms of power generation costs, it has decreased, but in terms of total input, it has increased.

At this cost, the construction of a square kilometer of solar power station requires an investment of about 2 billion yuan!

No matter how rich the company is, it can't afford such a high construction cost.

It is impossible for the state to pay for such a large expenditure.

They have been mastering this technology for many years, but they have only produced a few batches at the beginning of the century when they were fishing for American conglomerates and later supporting African bases.

Technically, concentrating multi-junction solar cells have fully reached practical capabilities.

But because the manufacturing cost is too high, it can still only be manufactured by the laboratory, on a small scale.

Popularization is still a distant dream.

He returned to his seat and sat with his head down for a while before he raised his head and said in a resolute tone: "We will do everything we can to continue to bring costs down and make mass production a reality." ”

"I believe that in the future, solar energy will become one of our main sources of energy!"

Chen Weidong took the lead and applauded gently: "That's a good point!" When we conduct scientific research, we want to serve humanity. ”

"I'm very much looking forward to your research and achieving even greater results!"

He turned his head sideways, whispered a few words to Lin Zeju, and asked as if unintentionally: "If I have 1,800 times the condenser lens, can you improve the current concentrating multi-junction solar cells?" ”

"Eighteen hundred!"

Fang Weimin shouted in horror, "I heard that the latest model of the satellite of the United States has only been installed with a 1,600-fold focusing lens!" At the focal point, the temperature reached more than 1,800 degrees, which is not easy! ”