My Galaxy Technology

Chapter 215 Lithium Air Battery

“Of course nuclear fusion is a better choice for batteries, but we don’t have that technology.”

The current ternary lithium batteries, lithium iron phosphate batteries, etc. are all ternary materials and conventional structure batteries under the existing theoretical system. They all work hard on the structure to increase the energy density as much as possible, but no matter how they are designed , cannot exceed the theoretical value of 350wh/kg.”

If you want to exceed this theoretical value and achieve energy density of 400/500 or even higher, single-element lithium-sulfur batteries are also a good choice. The theoretical specific capacity of sulfur can allow the design theory of lithium-sulfur batteries to reach 2600wh/kg, which is the third It is about seven times that of ternary batteries, and sulfur is cheap and abundant on this planet. The price is only 1,000 degrees per ton, which is more than a hundred times lower than the high price of ternary materials, which often costs hundreds of thousands per meal.

However, since the Galaxy Technology Library does not include lithium-sulfur battery technology, only lithium-air batteries, it is obvious that lithium-air batteries are superior.

Also, sulfur needs to be mined. Lithium-air batteries directly use air as one pole, which saves money. Moreover, more lithium can be released on the other pole, and the theoretical energy density that can be achieved is higher, which can reach an energy density of 5,000 degrees to more than 10,000 degrees, which is a breakthrough...

After disassembling the battery and getting familiar with it carefully for a period of time, Zhou Feiyu began to work on the second technology, which is lithium-air battery technology.

This is an old technology that has been talked about for decades, but has never been realized.

The closest one is a technical solution jointly developed by Professor Wang Gang of Aurora University in Shanghai and a research institute in Xiaori. However, it only solves some of the difficulties in lithium-air batteries. There are other even greater difficulties. It has not been resolved, so it is still said that it will take another ten years to be commercially available.

Well, just like controllable nuclear fusion, it is said year after year that there are still many years left before it can be commercialized.

After understanding all the knowledge about lithium-air battery technology, Zhou Feiyu knew that the feasibility of Professor Wang Gang's technical plan was actually very high, but in order to truly follow this technical plan to realize the commercial use of lithium-air batteries, the key is How to choose only oxygen in the air, and solve the solid electrolyte membrane.

The use of oxygen as the positive electrode is purely theoretical. In fact, the battery is used in real conditions. At this time, it faces a problem, that is, in addition to oxygen, there are many other gases in the air, as well as too many impurities, water vapor, etc. Element.

Lithium in lithium batteries is a metal with very active chemical properties. In addition to chemical reactions with oxygen, it also reacts with other impurity gases. This will lead to the production of many impurities and the corrosion of lithium itself. Ultimately, the battery life will be too short and the energy will be lost. Density is too low, and various risks during use.

Therefore, the oxygen in the air must be purified and used, and only oxygen can pass into the battery. This has high requirements for materials, which require high performance, ultra-thinness and low cost.

In addition to this, the channels between the lithium and the electrolyte inside the battery are also difficult to deal with. Lithium ions need to react, but they cannot react in a channel. The characteristics of the channel itself are extremely demanding, which results in either high cost and low performance, or considerable performance but another fatal flaw.

There are no comprehensive options to choose from, so we can only despair.

Solid electrolyte films are often made of polymer ceramics as channels, but they easily become extremely fragile during the battery discharge and charging process and can break when touched. This has not yet been solved.

Porous carbon is not enough. We have to find ways to use other more advanced carbon composite materials. The same is true for solid electrolyte membranes. This requires the use of intermediate thin film technology.

Zhou Feiyu's thoughts were racing, he made some simulation calculations in his mind, and a set of feasible verification plans naturally emerged in his mind.

Here, the intermediate film technology that he had used before could be put to great use.

Thanks to the complete package of lithium-air battery technology, Zhou Feiyu is now just using the knowledge he has to recover. And with the foreshadowing of the previous technology, the speed this time is still very fast.

With an order, many materials were bought back, even some that were difficult to buy on the market, and were delivered to Zhou Feiyu within two days.

On the third day, by the end of September, the finished lithium-air battery prototype was produced. It was only as big as a fist. Installing it on the Zero-01 robot was like installing a strong heart.

After restarting, the battery power of Robot Zero-01 showed that the available supply time had increased from the original ten hours to one hundred and twenty hours, a twelve-fold increase.

Yes, yes, this power can be said to be surging power.

Zhou Feiyu was very satisfied that the battery reached his design value.

Although this power does not reach the highest theoretical value of lithium-air batteries and is still far behind, the twelve-fold improvement can still be said to be a qualitative breakthrough compared to today's most advanced ternary material batteries!

The size of this battery is to match the Zero-01 robot, and it is not necessarily this size.

This lithium-air battery can also be matched with end products such as automobiles, mobile phones, laptops, home appliances, toys, etc., and the design can be adjusted according to different structures.

Of course, different structures naturally have different electrical capacities. The larger the volume, the greater the mass of metallic lithium and the higher the electrical capacity. This is self-evident.

Therefore, big means high.

What good materials is the boss working on recently?

It has something to do with thin-film materials. All our experimental data on thin-film materials have been transferred in the past two days.

You said, the boss won't really make a robot, right?

If you really do it, it will be awesome.

Yes, from now on our Feiyang will be as powerful as Tesla. No, it should be said that we will be a terminal company even more powerful than Tesla.

While Zhou Feiyu spent a few days quietly solving world-class problems, there were also some discussions in the R\u0026D department within the Feiyang factory.

The R\u0026D department is conducting expansion and derivative work on the materials that have been developed, and it has been very fruitful recently.

Whether it is optical materials, PI materials, or holographic materials, a variety of derivative models have been successfully developed and introduced into mass production, greatly expanding Feiyang's product line.

In particular, various derivatives with pi materials as the core include high and low temperature resistance, radiation resistance, flexibility, low impedance, high impedance, permeability, insulation and conductivity, etc., as many as dozens of subdivided materials.

The material data accumulated by the R\u0026D department, including performance data, experimental data, useful or useless data, is even more vast.

Zhou Feiyu transferred all this data, and it obviously has a purpose. The most reasonable guess is that he is developing new breakthrough materials with significant effects.

With the current competition with Truss's telephony from afar, it would be impossible for them not to test this aspect.

When will Truss' press conference start?

It seems like it's tomorrow, October 1st.

Damn, you're doing this on National Day? You did it on purpose.

It's definitely intentional, but it's not tomorrow, it's today. The time difference between them and us is different. They were at eight or nine in the morning on the 1st, and ours was around nine or ten tonight.

Can we all watch together tonight?

You must read it, you know yourself and your enemy.

The men and girls in the R\u0026D department all agreed with this proposal.

It can be said that the release of Tesla's humanoid robot is highly anticipated. No matter what your mood is, you have to watch it first before talking about it.

But what no one in Feiyang's R\u0026D department expected was that at seven o'clock in the evening, Feiyang's message suddenly sent out a scarf again.

There is only one video of the scarf, but everyone who saw it was shocked...

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