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

In terms of sensors, it is still the one that has been developed by Dahan Chip, and there is no need to re-tape out the production for a little performance improvement.

Kangchi's main upgrade is the system firmware, which further squeezes the performance of the sensor, and the upgrade of the phase focus function, which is also crucial for video cameras.

Finally, there is the SDD storage medium.

The biggest problem in video shooting has always been that the bitrate is too high due to the video quality commission, and the speed of ordinary memory cards is easy to keep up.

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

A 512G, SD card that supports 4K shooting, the price is generally around 800 yuan.

It's pretty cheap,

When Soni released the video mirrorless A7S3, it directly bundled a Type A card.

80G,599元,

160G, 2999 yuan,

640G, 8999 yuan!

This price can be said to be crazy!

You don't want to buy it, okay?

Yes, then use the previous SD card,

But I'm sorry, 4K120P, 2K240P video formats, speed is not supported!

In fact, A7S3The highest video bitrate is600mbps,According to the video bitrate1Mbps = 0.125MB/s,That is, in fact, as long as the write speed of the card,Higher than75MB/s can meet the write。

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

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

Even the excuse of cutting leeks is so perfunctory.

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

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

And considering that you can now buy 1TB of M.2 domestic solid-state for 400 yuan, there is no need for Kangchi to go to the trouble of forcibly changing the interface or even making your own hard disk.

So he just abandoned the interface and changed it to M.2.

In this way, users only need to spend as little as four or five hundred yuan to get 1TB of shooting storage space, if you are afraid of unstable performance, buy a more reliable and stable solid-state price, the price is far cheaper than buying a traditional SD card.

From now on, users can shoot whenever they want, and no longer have to count the shooting time, worrying that the size of high-spec videos is too large and the memory is insufficient.

After a bit of optimization, this Tongwu camera, which uses an SSD as a storage medium, has completely turned into a video monster.

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

——

Zeng Yuqing has been under more pressure lately.

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

For a long time, the Huaguo market has been CATL's own land, and in the global new energy vehicle market, Huaguo occupies a full 55% share.

This has also created an exaggerated proportion of batteries for every three new energy vehicles manufactured in the world 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 lagged behind 0.1%, ranking second.

Songxia is next behind, with a 14.7% share.

Therefore, if you look at the world, CATL is not a monopoly at all.

Even at the moment when LG and Songxia joined forces to resist Ningning and Huaguo gradually reduced its support for new energy, this self-reserved land in the Chinese market began to become a bit precarious.

On August 28, Zeng Yuqing came to Tesla's Magic Capital Gigafactory for the second time and met with Anil.

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

When he saw this small battery, Anil couldn't help but sigh in his heart, his guess was really right, there were many toothpastes in the CATL era!

If it weren't for LG and Songxia's help, they wouldn't know how long they would have to squeeze.

But......

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

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

Hearing this result, Zeng Yuqing was immediately stunned.

Although they signed a cooperation order with Tesla before, there are still six months to go.

In the case of taking out the 260Wh/kg lithium battery, he still has plenty of time to adjust the market, and he is not worried at all that losing Tesla will lead to a waste of their production capacity or even shutdown.

But the stock market is not easy to say.

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

As Zeng expected, the stock of CATL plummeted 4.3% immediately after the news came from overseas the next day.

CATL also immediately held a press conference and announced the news that their new 260Wh/kg liquid lithium battery has officially started mass production, which barely stopped the decline.

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

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

Therefore, even if CATL released the blockbuster news of this battery breakthrough, it only barely stopped the speed of decline and could not change the downward trend......

——

Dongyang City, Datang Heavy Industry.

A battery assembly line with a total length of one kilometer is like a long dragon quietly winding around the narrow clean room workshop.

When Kangchi built this production line, it started from the pulping and slowly advanced one process after another.

Therefore, when the equipment manufacturing of the formation process is completed, in fact, the previous equipment has basically completed the test and manufactured a semi-finished product.

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

This process may seem simple, but it can cause permanent damage to the positive and negative electrodes of the battery due to overcharging and discharging, especially for the first activation.

Therefore, in the chemical industry, special equipment is needed to monitor the activation of the battery at all times, so that the quality and life of the finished battery can reach the best state.

"The battery is activated and ready to go to the test."

With Yan Hui's order, the first nano battery made by Datang Heavy Industries was carefully taken out of the chemical equipment by the engineers.

All eyes were on the cuboid sodium-ion battery as it was fed into the test bench.

"Voltage test, 4.2V, in line with design standards."

Next, it's time for the battery discharge test, which determines the final density of the battery's energy.

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

If you rush in, you won't be able to let it out, and you'll be embarrassed......

However, the production line made by Kangchi, each of which has a panel, how can it be possible to make such an oolong.

1Wh/kg，

2Wh/kg，

……

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

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

The engineer immediately ended the discharge.

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

Not a little more, no less than a point!

After 60 minutes of waiting, and you can see that the numbers are gradually rising, you actually have an expectation in your heart.

But when they saw this frozen number, everyone's hearts couldn't help but beat a few times.

“400Wh/kg！”

"Awesome! 400Wh/kg sodium-ion battery!! ”

"It really worked?"

"Directly using the production line, a 400Wh/kg sodium-ion battery was created?"

"Mr. Kang, this is too exaggerated!"

“……”

(End of chapter)