bonanza

Chapter 788 Lithium Battery

A year after the Japanese patent application, the research team at the University of Texas in the United States discovered that the technology had been stolen.

They made an emergency remedy and applied for a patent for the lithium iron phosphate cathode material in the United States.

However, limited by its own strength, the University of Texas was unable to defend its rights, so it authorized the patent to Hydro-Quebec, Canada.

After Hydro-Québec obtained the authorization, it turned into a rights defender.

They first approached Nippon Telecom, where Shigeto Okada works—in this era, Japan looks fatter than China.

Now they have found Dongsheng Group again.

"Hydro-Québec requires us to pay a one-time entry fee of 5000 million US dollars, and after that, we need to pay a patent royalty of 5000 US dollars for every ton of lithium iron phosphate battery produced." Director Li said.

"A group of patent hooligans!" Yang Dongsheng snorted coldly, "They preemptively registered our patents, saying that we have no patent awareness; should we apply for patents before them, or do we have no patent awareness?"

"However, Hydro-Québec is different from ordinary Canadian companies. They are a Canadian state-owned enterprise. The group has just received an official letter from XXX, asking us to handle the dispute with Hydro-Quebec carefully, and not to do anything that will damage the image of the country and the relationship with XX. about it." Director Li also became more and more angry.

"Send us a letter at this time, why don't they come directly with the Hydro-Quebec people?" Yang Dongsheng wanted to hit someone.

The shopping mall is like a battlefield, and they came here to hold them back at this time!
Yang Dongsheng really wanted to smash their heads open to see if they were filled with innocence?
"I heard that they really planned to come here together, but Hydro-Québec has scruples and doesn't want to get too involved with them, otherwise even if the matter is done, they won't be able to do business when they go back!"

"Hmph!" Yang Dongsheng sneered, "A group of idiots who know how to send faces all day long! They can't control us, just ignore them!"

"But without the US patent license, our batteries will not be able to enter the US market in the future!" Director Li said.

In 2005, the total annual car sales in the United States was nearly 1700 million, making it the largest car market in the world.

In the same year, the total sales volume of automobiles in China was only about 580 million units—this was nearly 10 units higher than the same period in the previous life.

The extra 10 vehicles were mainly created by employees of Dongsheng Group.

Dongsheng Group has created millions of high-income jobs. These employees have high incomes, and some of them will naturally buy cars.

In Director Li's view, the domestic market is too small, and it has to compete with fuel vehicles. Electric vehicles are a new thing, and the Chinese people may not accept them very well. Future electric vehicles will have to rely on the US market.

Automobiles are different from heavy equipment for enterprises such as machine tools, steel rolling equipment, and air separation equipment.

After a steel plate is produced, no one can tell whether the equipment for rolling this steel plate infringes other people's patents.

But cars are different. When they enter other people's markets, they take out the parts, take them apart and take a look, and it's clear at a glance.

"You go to talk to them about entry fees and patent royalties. Their current asking price is also a lion's mouth. When needed, I can come forward, but the purpose of the negotiation is still pending. The patent matter, I will solve it !” Yang Dongsheng said.

Now everyone doesn't know the electric car, when will it mature?
Maybe before the launch of electric vehicles, the patent for lithium iron phosphate batteries will expire!

Many people even think that electric vehicles are as good as controllable nuclear fusion, and they are always 50 years away from being available.

For these disputes involving patents, Yang Dongsheng already had a feasible solution and handed over the task to James Whistler.

As long as it is delayed for another two years, after the economic crisis, the problem will be solved.

"Okay!" Director Li took out his small notebook and wrote down Yang Dongsheng's request.

"Fortunately, this dispute does not affect our upcoming smartphone plans!"

The nominal voltage of the lithium iron phosphate battery is only about 3.3 volts, which is not only lower than the lithium cobalt oxide battery and the ternary lithium battery, but also lower than the cut-off voltage of the mobile phone - 3.4 volts.

Lithium iron phosphate batteries are not suitable for use in small electronic devices such as laptops, mobile phones, and MP3/4.

However, the Japanese had been hiding it from them before, and Hydro-Québec caught them by surprise.

Sooner or later, Yang Dongsheng will make them all come back.

Director Li was about to go out when Yang Dongsheng suddenly stopped him, "Summary of the company's progress in lithium battery technology, I want to see it!"

It took two hours to process the backlog of documents for the past few days.

Director Li led someone to deliver a pot of freshly brewed tea, and at the same time, there was also a printed document that was still oozing heat.

So far, Dongsheng Group has obtained 1557 patents related to lithium batteries.

The patent involves lithium cobalt oxide battery, lithium manganese oxide battery, lithium iron phosphate battery, ternary lithium battery, etc.

In ternary lithium batteries, cobalt can make the positive electrode more stable, but if the content is too high, the battery capacity will be reduced;

Nickel can increase the capacity of the battery, but it will make the cycle performance worse;

Manganese can reduce costs and improve safety performance, but too high a level can destroy the layered structure of the material.

For ternary lithium batteries, the current technical difficulty is how to balance the components of these materials to achieve the highest possible performance at the lowest possible price.

In addition to constantly exploring the craft, they also came up with some more interesting things.

Lithium manganese oxide battery has good capacity, safety and low temperature performance, but poor thermal stability and relatively short life.

The voltage and capacity of lithium iron phosphate batteries are low, but they have good thermal stability, high safety and long life.

Researchers recombine these materials, and the newly developed lithium manganese phosphate battery not only inherits the advantages of high safety and good thermal stability of lithium iron phosphate battery, but also has higher capacity.

Lithium manganese iron phosphate battery not only has the above advantages, but also has a higher retention rate at low temperature.

……

In addition to positive electrode materials, electrolyte manufacturing is also a technical difficulty.

In fact, what is commonly referred to as a lithium battery, the correct name should be called "lithium-ion battery".

The inside of a real lithium battery is lithium metal, which can only be discharged and used for one time.

Lithium ions are free lithium, which can be charged and discharged.

The earliest lithium-ion batteries, like ordinary batteries, used electrolytes.

But after the lithium battery in the mobile phone of later generations is disassembled, it will be found that the battery is actually a long strip with no liquid in it. It is a polymer lithium-ion battery.

Compared with the electrolyte, the polymer lithium battery electrolyte has a higher density, and is pressure-resistant, impact-resistant, and not easy to leak, and can be made into various shapes.

In 1999, the Japanese took the lead in launching commercial polymer lithium-ion batteries, and Dongsheng Group also made breakthroughs in related technologies a few years ago.

In addition to lithium-ion batteries, researchers also submitted some cutting-edge topics, such as sodium-ion batteries, solid-state lithium-ion batteries, etc.

(End of this chapter)