News on China's scientific and technological development.

duncanidaho

Junior Member

Equation

Lieutenant General
"The Institute of Plasma Physics, which is affiliated with the Chinese Academy of Sciences, has announced that its ‘artificial sun’ has reached a key temperature of 100 million degrees Celsius."

https://eandt.theiet.org/content/articles/2018/11/artificial-sun-reaches-100-million-degrees-celsius/

If China could make Fusion reactors on technological and economic level work, that would be real game changer for China and a bless for the mankind.
It's a good positive steps but man kind is still a few decades away for a reliable fusion reactor to go online. So....more natural resources will continue to dominate the world as well as the geo political issues that goes with it.
 

Hendrik_2000

Brigadier
Holy grail of battery technology
https://www.engadget.com/2018/11/21/chinese-startup-solid-state-batteries-production/?yptr=yahoo

A Chinese startup may have cracked solid-state batteries

Dyson, BMW and car manufacturer Fisker are just a few names that have been working on the tech for the last few years, but now, reports suggest a Chinese start-up might be the first to have cracked it.

According to Chinese media, Qing Tao Energy Development Co, a startup out of the technical Tsinghua University, has deployed a solid-state battery production line in Kunshan, East China. Reports claim the line has a capacity of 100MWh per year -- which is planned to increase to 700MWh by 2020 -- and that the company has achieved an energy density of more than 400Wh/kg, compared to new generation lithium-ion batteries that boast a capacity of around 250-300Wh/kg.

Details beyond this are sparse. The headline news here, if accurate, would be that the company has managed to put solid-state batteries into high volume production, but it's not clear how Qing Tao Energy Development has achieved this, nor what price points are involved. Furthermore, while a capacity of 100MWh is not to be sneezed at, it still only equates to fewer than 2,000 long-range EVs per year. Nonetheless, the news demonstrates that progress is happening in the solid-state battery arena. We might not feasibly yet be at high volume production, but we're on our way.
 

Equation

Lieutenant General
Holy grail of battery technology
https://www.engadget.com/2018/11/21/chinese-startup-solid-state-batteries-production/?yptr=yahoo

A Chinese startup may have cracked solid-state batteries

Dyson, BMW and car manufacturer Fisker are just a few names that have been working on the tech for the last few years, but now, reports suggest a Chinese start-up might be the first to have cracked it.

According to Chinese media, Qing Tao Energy Development Co, a startup out of the technical Tsinghua University, has deployed a solid-state battery production line in Kunshan, East China. Reports claim the line has a capacity of 100MWh per year -- which is planned to increase to 700MWh by 2020 -- and that the company has achieved an energy density of more than 400Wh/kg, compared to new generation lithium-ion batteries that boast a capacity of around 250-300Wh/kg.

Details beyond this are sparse. The headline news here, if accurate, would be that the company has managed to put solid-state batteries into high volume production, but it's not clear how Qing Tao Energy Development has achieved this, nor what price points are involved. Furthermore, while a capacity of 100MWh is not to be sneezed at, it still only equates to fewer than 2,000 long-range EVs per year. Nonetheless, the news demonstrates that progress is happening in the solid-state battery arena. We might not feasibly yet be at high volume production, but we're on our way.
Funny I just read about that on Yahoo news and saw a bunch sour grape China haters yammering on the comments section. Well done China.:D
 

Hendrik_2000

Brigadier
Quantum network is spreading across China
China adds new line to its quantum communications network
State newspaper makes no secrets about the military application of the "unhackable" network
By ASIA TIMES STAFF NOVEMBER 22, 2018 6:47 PM (UTC+8)
http://www.atimes.com/article/china-adds-new-line-to-its-quantum-communications-network/

An extension of the quantum communications landline connecting East China’s Anhui province and central Hubei province is now up and running. The project is the latest in a slew of its kind as China expands a quantum communications network that is reportedly impossible to crack.

The new, 609-kilometer line connects the two provincial capitals, Hefei and Wuhan. It was built by the state-owned China Aerospace Science and Industry Corp, which develops and produces missiles and carrier rockets and also invests heavily in laser research and development as the base technologies for quantum communications.

The new line is now connected to the existing Beijing-Shanghai line that was inaugurated in September 2017.

China is devoting billions to the cutting edge network linking key cities. Governmental organs and vital agencies, from the military to research institutes, are being enticed by its ultra-high security. Information sent through the quantum network is almost impossible to be tapped, intercepted or cracked.

The Global Times noted that the network could help transmit classified information to a command center of the People’s Liberation Army, which could in return instantly instruct a combat unit during wartime.

The nation’s quantum communications ground network is connected to the world’s first quantum satellite, the Mozi (aka Micius), launched by China in August 2016.

Data encryption based on quantum computing, or quantum mechanics, was pioneered by the Los Alamos National Laboratory in the US, which announced in 2014 that it had created a secure network. Other nations including Germany, Japan, Australia and Sweden are known to be working on similar projects.

Traditional cryptographic systems use the factors of a number that is itself the product of two very large prime numbers to encode signals. This is done on the premise that it would take too much time, and too much computer processing power, for an algorithm to crack the system.

Quantum computing takes a more minimalist approach by limiting data communication to just two parties, the sender and one receiver. Entangled photons, or visible light particles, are sent to the two stations encoded with specific polarizations (the direction of the light wave’s wobble) as a security layer.

The satellite creates security keys using measurements of polarizations, which the stations can use to encrypt and decrypt the data. It is technically “unhackable”, as users can quickly detect the presence of a third party: anyone eavesdropping would be unable to look at the photons without changing or even destroying them.

“The laws of quantum mechanics make it physically impossible for the (transmission) to be intercepted and read without eavesdropping being detected by the sender and receiver,” an expert told the Beijing-based tabloid Global Times.

Such a secure system for transmitting encrypted voice calls, faxes and emails containing classified information would be of immense value for the top brass of the People’s Liberation Army and intelligence networks at a time when cyber warfare is taking on ever-greater importance.
 

taxiya

Major
Registered Member
Holy grail of battery technology
https://www.engadget.com/2018/11/21/chinese-startup-solid-state-batteries-production/?yptr=yahoo

A Chinese startup may have cracked solid-state batteries

Dyson, BMW and car manufacturer Fisker are just a few names that have been working on the tech for the last few years, but now, reports suggest a Chinese start-up might be the first to have cracked it.

According to Chinese media, Qing Tao Energy Development Co, a startup out of the technical Tsinghua University, has deployed a solid-state battery production line in Kunshan, East China. Reports claim the line has a capacity of 100MWh per year -- which is planned to increase to 700MWh by 2020 -- and that the company has achieved an energy density of more than 400Wh/kg, compared to new generation lithium-ion batteries that boast a capacity of around 250-300Wh/kg.

Details beyond this are sparse. The headline news here, if accurate, would be that the company has managed to put solid-state batteries into high volume production, but it's not clear how Qing Tao Energy Development has achieved this, nor what price points are involved. Furthermore, while a capacity of 100MWh is not to be sneezed at, it still only equates to fewer than 2,000 long-range EVs per year. Nonetheless, the news demonstrates that progress is happening in the solid-state battery arena. We might not feasibly yet be at high volume production, but we're on our way.
Here is some details in Chinese from China Science Academy
http://www.casad.cas.cn/doc/17637.html

The leader of the startup is member of the Academy and professor of Qinghua.
安全性超强的固态软包电芯电池

  “我们的团队做了一些固态软包电芯产品,”南策文谈道,“这类电池挤压后不会发生短路,而且可以看到经过两次穿刺后,其充放电曲线依然正常,气容量发挥率约80%,保护率比较高。”

  南策文还介绍,将其团队研发的固态软包电芯产品充电至4.3V,侧方向挤压变形大于50%,也未出现冒烟起火、燃烧爆炸等问题。把针刺后的产品充满电,再进行重物冲击,也没有出现起火、燃烧等情况。对电池充电后,进行短路测试,最高温度达64.3℃,最大电流达47.9A。电池也没有出现冒烟、起火、爆炸等问题,依旧可以保持电容量。并且测试后也没有发现胀气等异常情况。

  固态电解质可以解决安全问题,并且可以做到更高的比能量。固态软包电芯产品可以达到300Wh/kg-400Wh/kg,甚至可以超过431Wh/kg。南策文介绍,另一种柔性固态电芯,经过两回弯折后很快恢复,比能量没有降低,无论是弯折也好,卷曲甚至是对折也好,都不会出现问题。把该电池放入150℃水中2小时,电池没有出现起火、爆炸的情况。
  • Up to 4.3V
  • Deformed greater than 50%, no smoke, combustion and explosion.
  • After being punctured, fully recharged, under heavy shock, no conbustion.
  • Short circuit test reached 64.3 degrees and 47.9A current without smoke, fire and explosion. Still retains capacity. No expansion after test.
  • capacity 300 to 400 Wh/kg, up to 431Wh/kg.
  • There is another type of soft solid cord can be bended twice without loosing capacity. Put in 150 degrees water for 2 hours without fire or explosion.
 

AndrewS

Captain
Registered Member
Here is some details in Chinese from China Science Academy
http://www.casad.cas.cn/doc/17637.html

The leader of the startup is member of the Academy and professor of Qinghua.

  • Up to 4.3V
  • Deformed greater than 50%, no smoke, combustion and explosion.
  • After being punctured, fully recharged, under heavy shock, no conbustion.
  • Short circuit test reached 64.3 degrees and 47.9A current without smoke, fire and explosion. Still retains capacity. No expansion after test.
  • capacity 300 to 400 Wh/kg, up to 431Wh/kg.
  • There is another type of soft solid cord can be bended twice without loosing capacity. Put in 150 degrees water for 2 hours without fire or explosion.
I look forward to a world where clean and safe electric cars rule the roads and are powered by cheap electricity from solar panels.
 
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