In the past life, rice actually made cars.

As a "colleague" Luo Fan still has a certain understanding of Rice's car-building progress.

The first is autonomous driving technology. Rice’s autonomous driving technology was acquired from an American company.

This company's self-driving technology is about the same as Tesla's, but it's also stuck in the 2%.

But they are not as rich as Tesla, and after investing so much in the early stage, they still failed to achieve the final technological breakthrough. They could no longer sustain long-term research, so they had no choice but to sell the company, and it was at this time that Da Mi took over.

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With autonomous driving technology in place, Rice's next goal is to provide supporting battery technology.

As for voice assistants, Xiao Ai, a classmate from Dami in her previous life, is already very mature and is recognized in the industry as the strongest voice assistant for Android systems.

Compared with iPhone's Siri, it can also be opened at 46 or even 55.

This is actually related to Dami's long-term commitment to smart homes. Nowadays, many young people choose integrated smart homes for decoration. They can control all the electrical appliances in the entire room with just a word of "Xiao Ai".

In order to implement this plan smoothly and promote the development of rice's other digital products besides mobile phones as much as possible, rice has invested a lot of money in voice assistants.

Therefore, in the previous life, the software for building cars was already available, but the only problem was the hardware.

At this point in time, it should be the time for DaMi to acquire the American autonomous driving technology company.

Mr. Lei's call to Luo Fan also meant that he wanted Luo Fan to cooperate with him in acquiring this company.

Luo Fan did not immediately agree to Mr. Lei's request because he had never thought of getting involved in the car manufacturing industry.

"Xiaoqi, analyze the battery technology of all new energy vehicles on the market today."

"Searching...Retrieval completed."

"Mr. Luo Fan, according to online data, the following types of batteries are currently used in new energy vehicles:

A lead-acid battery, which has low cost, good low temperature resistance and high cost performance.

However, this battery has low energy density, short life, large size, and poor safety. It cannot achieve good speed and high cruising range when used in new energy vehicles. It is generally used in low-speed vehicles.

Nickel-metal hydride batteries, the biggest features of nickel-metal hydride batteries are low cost, mature technology and long life.

But its shortcomings are also obvious. It has low energy density, large volume, low voltage, and battery memory effect. It contains heavy metals and will pollute the environment after being abandoned. It is very troublesome to handle and is not recommended for use in new energy vehicles.

The third is lithium manganese oxide battery. This kind of battery is very low cost and very safe. Its low temperature performance is very good and spontaneous combustion is almost impossible to occur.

However, the material itself of manganese acid is not very stable, prone to bulging, and has a relatively short life.

The fourth type is lithium iron phosphate battery. Lithium iron phosphate ion battery has good thermal stability, safety, low cost and long life.

However, this kind of energy density is low and it is very afraid of low temperatures. Only when the battery temperature is 500-600c, the internal chemical components begin to decompose.

If used in new energy vehicles, the safety factor is guaranteed, because no matter how high the temperature is, it will not burn or explode, and the service life is also long.

However, the vehicle's cruising range is average, and when the temperature is below minus 5 degrees, the car's charging efficiency will become very low, and its cruising capability will be greatly weakened.

Finally, it is the most widely used ternary lithium battery on the market. This battery has high energy density, long cycle life, and is not afraid of low temperatures. The only drawback is that it is not stable at high temperatures."

After speaking, Xiaoqi also opened WPS on Luo Fan's computer and made a chart on the spot to facilitate Luo Fan's comparison.

Luo Fan took a look at the chart data and continued to ask: "What is the development prospect of Xiaoqi graphene batteries and solid-state lithium batteries?"

"Searching... Search completed, Mr. Luo Fan, Xiaoqi believes that graphene batteries are unlikely to appear in the next 50 years."

"Why? Isn't this concept very popular? And haven't graphene batteries already appeared?" Luo Fan asked.

"Mr. Luo Fan, the "graphene battery" currently claimed on the market is actually an inaccurate concept and is being hyped by businesses.

The current so-called graphene batteries add a little graphene to the material to improve some performance of the lithium battery. This type of battery should be called a graphene-based lithium-ion battery.

The high specific surface area and other properties of graphene are incompatible with the current technical system of the lithium-ion battery industry, and it will be almost impossible to create a true graphene battery within 50 years."

“What about solid-state lithium batteries?”

"This technology is not fully mature. If it is used in new energy vehicles, Xiaoqi suggests starting with semi-solid lithium batteries.

Xiaoqi can perform simulation experiments through calculations to shorten the application time of semi-solid lithium battery technology. Mr. Luo Fan, you only need to send some relevant scientific researchers to cooperate with Xiaoqi's experiments.

Xiaoqi has a 92.3% probability of achieving a breakthrough in semi-solid lithium battery technology within three months."

"What about solid-state lithium batteries?" Luo Fan asked.

"Solid-state lithium batteries are calculated to take 27 months to complete."

"Two years and three months? Why does it take so long?"

"Because the essence of solid-state lithium batteries is to use a thin layer of solid electrolyte to carry lithium ions between electrodes. There is currently relatively little experimental data for this technology, and Xiaoqi needs to verify it from scratch."

"So that's it. How big is the difference between solid-state lithium batteries and semi-solid lithium batteries?"

"It's very large. Currently, there are semi-solid lithium batteries for military use, but they cannot be mass-produced.

Solid-state lithium batteries have higher energy density than lithium batteries using liquid electrolytes.

Compared with lithium-ion batteries of the same weight and volume, solid-state batteries can store up to 80% more energy.

The relatively stable characteristics also allow the battery to use higher voltage to replenish power, and the charging time is also shortened.

The electrolyte in solid-state lithium batteries also has high mechanical strength and is easy to package, which means solid-state lithium batteries are safer."

After listening to Xiaoqi's analysis, Luo Fan had a certain understanding of battery technology.

After thinking for a while, he said: "Then let's establish a mission! First the L4 autonomous driving technology, then the civilian semi-solid lithium battery, and finally the solid lithium battery."

"Okay Mr. Luo Fan, the mission has been established."

"Well, that's up to you."

"Xiao Qi must go all out." After saying that, Xiao Qi disappeared from the computer screen.
Chapter completed!