Chapter 204 On the way to cut leeks
Chapter 204 On the way to cut leeks
After the upgrade, Kang Chi spent another 20 mastery points to analyze the technology of this camera, and then redesigned it according to the situation.
In terms of sensors, the one that Dahan Xinye has already developed is still used. There is no need to re-tape out production for a little performance improvement.
Kang Chi’s main upgrade and improvement is still the system firmware, which further squeezes the performance of the sensor. In addition, the upgrade of the phase focus function is also crucial for video cameras.
Finally, there is the SDD storage medium.
The biggest problem with video shooting has always been that the bit rate is too high due to the improvement of video quality, and ordinary memory cards are not 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 generally costs around 800 yuan.
This is still cheap. When Sony released the video micro single A7S3, it directly bundled a Type A card.
80G, 599 yuan, 160G, 2999 yuan, 640G, 8999 yuan! This price is simply crazy! Can you not buy it?
Yes, then use the previous SD card, but I’m sorry, the speed of 4K120P and 2K240P video formats is not supported! In fact, the maximum video bit rate of A7S3 is 600mbps. According to the video bit rate of 1Mbps = 0.125MB/s, in fact, as long as the write speed of the card is higher than 75MB/S, it can meet the writing needs.
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 have bought their cameras, they need to pay extra to unlock advanced features.
Even the excuse of cutting leeks is so perfunctory.
But the upgraded Tongwu directly abandoned the traditional SD memory card and adopted a solid-state hard drive with a special interface.
Although the transmission efficiency of this interface is 30% higher than that of the M.2 interface, the transmission rate performance of 1GB/S is actually completely excessive.
And considering that you can buy a 1TB M.2 domestic solid state drive for 400 yuan now, Kangchi has no need to add trouble, force the interface to change, or even make a hard drive by himself.
So he directly gave up this interface and changed it to M.2.
In this way, users only need to spend a minimum of 400 to 500 yuan to get 1TB of shooting storage space. If you are afraid of unstable performance, buy a more reliable and stable solid state drive, the price is much cheaper than buying a traditional SD card.
From now on, users can shoot whenever they want, and no longer have to calculate the shooting time or worry about the high-specification video being too large and insufficient memory.
After a round of optimization, this Tongwu camera that uses a solid-state drive as a storage medium has completely turned into a video monster.
After completing the improved design, Kang Chi directly sent the design drawings back to He Yongbin, and then continued to invest in the manufacturing of the sodium battery production line. —— Zeng Yuqing has been under more 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 continued to come from overseas, and the insider information mentioned by Anil seemed to have become a done deal.
The Chinese market has always been CATL’s private territory, and in the global new energy vehicle market, China occupies a full 55% share, which has also created an exaggerated proportion of one out of every three new energy vehicles produced in the world comes from CATL.
However, in the overseas market, 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.
Following closely behind, Songxia also has a 14.7% share.
So if we look at the world, CATL is not the only one.
Even when LG and Songxia join forces to fight against CATL and China gradually reduces its support for new energy, this reserved land in the Chinese market has begun to become a little precarious.
On August 28, Zeng Yuqing came to Tesla’s Shanghai Super Factory for the second time and met with Anil.
However, this time, he brought a research and development system made by CATL.260Wh/kg lithium battery made by CATL.
When Anil saw this small battery, he couldn’t help but sigh in his heart. His guess was right. CATL has a lot of toothpaste! If it weren’t for LG and Songxia’s help, they don’t know when they will be squeezed.
But…
”I’m sorry, Mr. Zeng, you’re 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 stunned.
Although they still have six months to sign the cooperation order with Tesla before,
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 lead to waste of production capacity or even shutdown. But the stock market is hard to say.
Once the public knows that Tesla is about to decouple from them, I wonder how many billions of market value will evaporate from CATL…
The result was exactly as Mr. Zeng expected. After the overseas news came the next day, CATL’s stock immediately plummeted by 4.3%.
CATL also immediately held a press conference and announced that their new 260Wh/kg liquid lithium battery had officially started 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%, this 7.8% is all pure electric vehicles with the largest demand for lithium batteries.
So even if CATL released this heavy news of battery breakthrough, it only barely stopped the decline and could not change the downward trend…—— Dongyang City, Datang Heavy Industry.
A battery assembly line with a total length of one kilometer, like a long dragon, quietly winding in the narrow clean room workshop.
When Kang Chi built this production line, it started with slurry mixing and then slowly advanced through the processes. Therefore, when the equipment for the formation process was completed, the previous equipment had basically completed the test and produced semi-finished products.
The final process, formation, is to charge the battery cell for the first time, activate the activator 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 seems simple, but due to excessive charging and discharging, it will cause permanent damage to the positive and negative electrodes of the battery, especially the first activation.
Therefore, in the chemical process, 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 enter the test phase.”
With Yan Hui’s order, the first nanobattery made by Datang Heavy Industry was carefully taken out of the formation equipment by the engineer.
Everyone looked closely at the rectangular sodium-ion battery being sent to the test bench.
“Voltage test, 4.2V, meets the design standard.”
Next, it is the battery discharge test, which will determine the final density of the battery energy.
But in fact, when charging just now, everyone already knows how much electricity was charged into it, and can roughly estimate its energy density, but charging and discharging are two different things after all.
It would be embarrassing if it was charged in but couldn’t be discharged…
However, the production line built by Kangchi has panels on each one, so how could such a mistake happen.
1Wh/kg,
2Wh/kg,
…
As the battery began to discharge, real-time data calculation results also appeared on the display screen.
After 60 minutes of rapid discharge, the voltage of this 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 show that the energy density of this battery is finally fixed at 400Wh/kg.
Not a cent more, not a cent less! After a long wait of 60 minutes, everyone can see the number gradually rising. In fact, they already have an expectation in their hearts. But when they saw this fixed number, everyone’s heart couldn’t help but beat a few times.
”400Wh/kg!”
”Too awesome! 400Wh/kg sodium-ion battery!!”
”It actually worked?”
”Did you use the production line directly to make a 400Wh/kg sodium-ion battery?”
”Boss Kang, this is too much!”
”…”
(End of this chapter)