Technological power starts with upgrading lenses.

Chapter 204 On the way to cut leeks

After the upgrade was completed, Kangchi spent another 20 proficiency points to analyze the technology of this camera, and then redesigned it according to the situation.

As for the sensor, we should still use the one already developed by Dahan Core Industry. There is no need to re-strip out the sensor just to improve the performance.

The main upgrade and improvement of Kangchi is the system firmware, which further squeezes the performance of the sensor. The other is the upgrade of the phase focusing function, which is also crucial for video machines.

The last is the SDD storage medium.

The biggest problem with video shooting has always been that the video quality commission causes the bit rate to be too high, and ordinary memory cards can easily not keep up.

At the same time, high-speed cards with large memory are also relatively expensive.

A 512G SD card that supports 4K shooting generally costs around 800 yuan.

This is pretty cheap,

When Sony released the video mirrorless camera A7S3, it directly bundled it with a Type A card.

80G, 599 yuan,

160G, 2999 yuan,

640G, 8999 yuan!

This price is simply insane!

Can you not buy it?

Okay, then use the previous SD card.

But I'm sorry, the video formats and speeds of 4K120P and 2K240P are not supported!

其实A7S3的最高视频码率是600mbps，按照视频码率1Mbps = 0.125MB/s来算，也就是实际上只要卡的写入速度，高于75MB/S就能满足写入。

Even considering data interaction, a V90-280MB/S ordinary SD card can definitely meet the needs of the A7S3.

In fact, to put it bluntly, although users buy their cameras, they need to pay additional fees to unlock advanced features.

Even the excuse for cutting leeks was so perfunctory.

But after the upgrade, Tongwu directly abandoned the traditional SD memory card and instead adopted a solid-state drive with a special interface.

Although the transmission efficiency of this interface is 2% higher than that of the M.30 interface, the transmission rate performance of 1GB/S is actually completely excessive.

And considering that you can now buy a 1TB M.2 domestic solid state for yuan, there is no need for Kangchi to add trouble by forcibly changing the interface or even making its own hard drive.

So he gave up this interface directly and changed it to M.2.

In this way, users only need to spend a minimum of four to five hundred yuan to get 1TB of shooting storage space. If they are worried about unstable performance, buy a more reliable and stable solid state, which is much cheaper than buying a traditional SD card. .

From now on, users can shoot whenever they want, and no longer need to calculate the shooting time or worry about the size of the high-definition video being too large or insufficient memory.

After some optimization, this Tongwu camera, which uses a solid-state drive as a storage medium, has completely turned into a video monster.

After completing the improved design, Kangchi directly sent the design drawing back to He Yongbin, and then continued to invest in the manufacturing of the sodium battery production line.
-

Zeng Yuqing has been under greater pressure recently.

As LG and Songxia put aside their prejudices and set up a joint laboratory, news of the mass production of 250Wh/kg lithium batteries kept coming from overseas. The inside information Anil mentioned seemed to have become a certainty.

The Huaguo market has always been the preserve of CATL, and in the global new energy vehicle market, Huaguo occupies a full 55% share.

This has also created an exaggerated proportion of the battery of one out of every three new energy vehicles built in the world coming from CATL.

But in overseas markets, LG and Songxia have always been a huge threat to CATL.

In the first half of this year, LG’s overseas market share was 28.1%, ranking first, and CATL was 0.1% behind, ranking second.

Songxia follows closely behind, with a share of 14.7%.

Therefore, if you look at the world, CATL cannot be called a dominant player at all.

Even when LG and Songxia join forces to fight against Ning, and China is gradually reducing its support for new energy, this private land in the Chinese market has begun to become a bit precarious.

On August 8, Zeng Yuqing came to the Tesla Magic City Super Factory for the second time and met with Anil.

But this time, what he brought was a 260Wh/kg lithium battery developed and manufactured by CATL.

When he saw this small battery, Anil couldn't help but sigh inwardly. His guess was indeed correct. There was a lot of toothpaste from the Ningde era!

If it weren't for the help of LG and Songxia, they don't know how long they would have to squeeze in.

but……

"I'm sorry, Mr. Zeng, you are a step late."

Anil said with some regret, "Our group president Musk was in Gotham the day before yesterday and officially signed a battery cooperation agreement with LG in the Chinese market..."

Hearing this result, Zeng Yuqing was immediately stunned.

Although the cooperation order they previously signed with Tesla still has six months to go,

With the 260Wh/kg lithium battery, he still has plenty of time to adjust the market, and he is not worried that losing Tesla will cause them to waste production capacity or even stop production. But the same cannot be said for the stock market.

Once the public learns that Tesla is about to decouple from them, I don’t know how many billions of market value of CATL will be evaporated...

The result was just as Mr. Zeng expected. After the overseas news came the next day, CATL's stock immediately plummeted 4.3%.

CATL also immediately held a press conference to announce that their new 260Wh/kg liquid lithium battery had officially begun mass production, which barely stopped the decline.

But Tesla’s position in the global pure electric vehicle market is really too high.

Although Tesla's market share in China's new energy market is only 7.8%, all of these 7.8% are pure electric vehicles with the largest demand for lithium batteries.

Therefore, even if CATL released such blockbuster news about battery breakthroughs, it could barely stop the decline and could not change the downward trend...
-

Dongyang City, Datang Heavy Industry.

A battery assembly line with a total length of one thousand meters winds quietly like a long dragon in the long and narrow clean room workshop.

When Kangchi built this production line, it started with pulp mixing and slowly advanced one process after another.

Therefore, when the equipment manufacturing for the chemical formation process is completed, the previous equipment has basically completed testing and produced semi-finished products.

The final process, formation, is to charge the cell for the first time, activating the activators in the battery to activate the battery, and at the same time forming a dense film on the surface of the negative electrode to protect the entire chemical interface.

This process may seem simple, but excessive charging and discharging will cause permanent damage to the positive and negative electrodes of the battery, especially when activated for the first time.

Therefore, in the chemical industry, special equipment is needed to monitor the activation status of the battery at all times to ensure that the quality and life of the finished battery are optimal.

"The battery is activated and ready to enter the testing phase."

Following Yan Hui's order, the first nanobattery produced by Datang Heavy Industries was carefully taken out of the formation equipment by engineers.

Everyone watched closely as the rectangular sodium-ion battery was sent to the testing station.

"Voltage test, 4.2V, meets design standards."

Next, there is the battery discharge test, which will determine the final density of battery energy.

But in fact, when you first charge, everyone already knows how much electricity is charged into it, and can probably estimate its energy density, but charging and discharging are two different things after all.

If you rush in, it will be embarrassing if you can't let it out...

However, every panel of the production line manufactured by Kangchi was damaged. How could such an oolong happen?

1Wh/kg,

2Wh/kg,

……

As the battery begins to discharge, real-time data calculation results appear on the display screen.

After a full 60 minutes of rapid discharge, the voltage of the sodium-ion battery finally dropped to 2.76V.

The engineer immediately ended the discharge.

On the display screen at this time, the data analysis results showed that the energy density of this battery was finally fixed at 400Wh/kg.

Not much, not much!

After a long wait of 60 minutes, everyone could see the numbers gradually rising. In fact, we already had an expectation in our hearts.

But after seeing this fixed number, everyone's heart couldn't help but beat a few times.

“400Wh/kg!”

“That’s awesome! 400Wh/kg sodium-ion battery!!”

"It actually succeeded?"

"A 400Wh/kg sodium-ion battery was created directly using the production line?"

"Mr. Kang, this is too exaggerated!"

"..."

(End of this chapter)