Technology derived

Chapter 349 Prospects of the battery industry (second update)
Morita Xue Nai's craftsmanship is very good, and Wang Fan also tasted authentic Japanese cuisine for the first time.

During the period, Wang Fan asked Morita Xue Nai about lithium batteries: "Xue Nai, Sony successfully developed lithium-ion batteries in 1991, and then continued to commercialize them. It has been more than 20 years now!"

"Yes, lithium batteries have many advantages, such as high specific energy, long cycle life, wide charging power range, good rate discharge performance, etc. Therefore, current mobile phones, tablets, and even electric vehicles all use lithium batteries. "

Morita Xue Nai said, but then shook her head slightly: "It's just that the technology of lithium batteries has developed slowly, and even in the past 20 years, there has been little change!"

"Oh? To be specific." Wang Fan became interested. As a direct descendant of Sony, Morita Xue Nai has a great say in lithium batteries. After all, lithium batteries were first developed by Sony.

Morita Xue Nai sighed: "After nearly 20 years of development, whether it is a smartphone, a tablet computer, or the extremely popular Tesla electric car, the lithium battery technology used by all electronic devices is completely different from the one developed by Sony back then. Lithium-ion batteries, there is no essential difference in technical use."

"After 20 years, there is still no essential technological innovation?" Wang Fan was stunned, a little unbelievable.

Morita Xue Nai nodded: "Frankly speaking, lithium battery technology has entered a dead end, from a promoter of the electronics industry to a complete restrictor of the electronics industry."

Wang Fan was dumbfounded, but when he thought about it carefully, it seemed to be true!
Over the past 20 years, the progress of lithium batteries has been limited to charging efficiency, battery capacity, heating and cooling, etc.But the essential materials, as well as the most fundamental technology, still haven't improved much.

For example, the energy density of batteries, the energy density of common ternary lithium batteries is 180-200mAh/g, but in order to achieve double growth, other materials need to be considered.

For example, the energy density of graphene polymer materials can reach 600mAh/g, while the theoretical energy density of lithium-sulfur batteries is as high as 1675mAh/g, much higher than graphene batteries.

However, the difficulty of mass production, popularization, and promotion of new materials is not so great, especially in terms of cost.

Like a flow battery, sulfur dissolves into the electrolyte solution to form sulfides, and a cathode made of sulfur is consumed after only a few weeks, causing the battery to fail.

As for the solution of adding graphene, it undoubtedly greatly increases the cost, and it is difficult to promote it on a large scale.

And graphene is even more difficult to prepare!

More importantly, strictly speaking, only one layer of atomic thickness of graphene can be called graphene.

The god-like properties of graphene also refer to properties that can only be achieved at the thickness of one layer of atoms.

However, if this thickness becomes two or more layers, the performance of graphene will be greatly reduced immediately, and earth-shaking changes will occur.

Strictly speaking, the performance drops sharply, and the graphene with more than 2 layers can only be called graphene microflakes, not the graphene we think!

The graphene that can be produced on a large scale at present is just mediocre graphene microflakes.

As for real graphene, at this stage, no global company can achieve large-scale preparation!

Therefore, this is also the biggest reason why the trend of graphene has prevailed for so many years, but it has not been truly commercialized!
The high difficulty of preparation determines that the price of graphene microchips is very expensive, and single-layer graphene is even more expensive!
Therefore, although the performance of graphene is several times stronger, the cost is tens of times higher, and the final result can be imagined.

Just like Corning's Gorilla Glass, it is now widely used in major flagship phones, as well as other mainstream phones.

However, many people don't know that Corning's Gorilla Glass was invented in 1960.What's more, Corning was preparing to cooperate with Ford Motor to apply Gorilla Glass to car window glass!
However, because the cost of Gorilla Glass is too high, even though they are more scratch-resistant, no car companies are willing to adopt them, and the cost is too high.

In the end, Corning had to officially close the project in 1971, and put the technology into limbo.

It was not until 2005 that Motorola MOTO released the RazrV3 mobile phone, which used a glass display screen instead of the previous high-strength plastic, that Corning restarted the Gorilla Glass project.

In 2008, Gorilla Glass was revived with the help of the iPhone, and has become the industry benchmark for the external screen of mobile phones!
It has never been useless, but it is the industry benchmark!

What kind of changes has Corning's Gorilla Glass undergone?
During this period, it was the first time in 40 years!
Wang Fan sighed, why not the current situation of graphene?

Even though the prospect is bright, the road is extremely tortuous...

After some contemplation, Wang Fan made up his mind that graphene can be made, but not now.

After all, graphene, a material with excellent performance, is called "black gold". It has the characteristics of being the hardest and thinnest in the world. It also has strong toughness, electrical conductivity and thermal conductivity. It is an ideal alternative Materials can completely bring a material revolution in a large number of fields such as semiconductors, photovoltaics, lithium batteries, aerospace, military industry, LEDs, and touch screens.

Therefore, once he comes up with a low-cost graphene preparation method and can mass-produce true single-layer graphene, it is equivalent to holding the lifeblood of half an era. I am afraid that any government, any international giant, Will not remain indifferent!
In that way, the profit of mortal technology is unlimited, but the premise is that Wang Fan can keep this cake!
A gentleman is innocent, but he is guilty!
This is the truth.

Wang Fan sighed, mortal technology is still very weak and energy is limited.

If mortal technology can develop to the existence of Apple and Samsung, so what if it comes out with a preparation technology like graphene?

Even if it is to declare war on the economy of an ordinary country, so what?

But now, it can't be done.

The revolution has not yet succeeded, comrades still need to work hard!
Wang Fan shook his head, temporarily dismissing the idea of ​​developing graphene.

Since graphene, a new type of material, is not easy to develop now, let's start with lithium batteries!

Although the status of lithium batteries has not been shaken in the past 20 years, it can be seen that the potential of lithium batteries is still very strong, but it has not been really tapped!

Wang Fan closed his eyes, entered the technology derivation system, and started the derivation of new batteries!

He wants to make a black technology battery, a super high-energy lithium battery, a lithium battery that can be easily promoted and cause an industry revolution in an instant!

Sheng Tianxue Nai looked at Wang Fan's deep thinking, and quietly picked up the dishes on the table without disturbing him at all...

(End of this chapter)