Who is killing Huawei?

   Recently, there have been a lot of news about Huawei. From last month's "5G standard" to the recent "graphene lithium-ion battery" and "150 billion year-end award", it has caused a lot of climaxes from the media! For a time, the Internet is full of all kinds of blindly touted articles, and the reading volume is 100,000+. Even if there were some objective voices during the period, they were quickly drowned in the saliva. As if you did not recognize these "achievements" of Huawei, you are the "traitor" and "beautiful dog". This is completely narrow nationalism. ! However, the facts are facts. If you ignore the facts and excessively blindly tout, it is not a good thing for Huawei.

First, 5G standard events

On November 17th, US local time, at the 5G short-code solution discussion meeting of the 3GPP RAN1 87 meeting, the Chinese company's China-based Polar Code (Polarization Code) program, from the United States to promote LDPC, France's two main competitions Turbo2.0 It stands out from the crowd and becomes the 5G control channel eMBB scene coding scheme, and the LDPC code becomes the uplink and downlink short code scheme of the data channel.

After the news was sent back to China, it immediately caused a lot of carnivals from many domestic media and netizens. Soon on the Internet, there were a large number of articles that dazzled Huawei, such as "World 5G technology standards, China set!"; "Huawei crushed Qualcomm, won the 5G era!" In contrast, Huawei itself is very low-key, and did not take this matter to publicize.

Factual situation:

1. The Polar code was not invented by Huawei. It was first proposed by Professor Erdal Arikan of Bilken University in Turkey in 2008.

2. Huawei is just one of the many companies that promote Polar code. In addition to Huawei, there are ZTE, MediaTek, etc. The victory of Polar code is not the credit of Huawei.

3. The coding scheme is only a small part of 5G. It is determined that the use of Polar code standards is also the result of global compromise and mutual game. It is not a big win for Chinese manufacturers.

4. More importantly, before the Polar code became a 5G short code solution, the LDPC solution promoted by Qualcomm and Ericsson has become a 5G medium long code encoding confirmation scheme. The long code part covers the main information transmission. In contrast, the short code is mainly used for signals, and the amount of information carried is almost nothing. It is equal to the national team (including more than 100 enterprises such as Huawei ZTE). It’s hard to say victory, which is not commensurate with the investment. Moreover, this is only one of the five major scenarios of 5G, and two others have not yet been discussed.

Obviously, in this case, it is indeed nonsense to say "5G standard China", "Huawei crushing Qualcomm, and winning the 5G era". Of course, we must also affirm that Chinese manufacturers have successfully participated in the formulation of the 5G standard, and indeed have achieved some results.

Second, Huawei developed a graphene-based lithium-ion battery

Recently, Huawei's Central Research Institute Watt Lab announced that they have achieved major research breakthroughs in the field of lithium-ion batteries, introducing the industry's first high-temperature long-life graphene-based lithium-ion battery, and this new high-temperature technology can use lithium-ion battery upper limit temperature. Increased by 10 ° C, the service life is twice that of ordinary lithium-ion batteries.

The announcement of the news once again triggered a lot of self-media admiration for Huawei's technology. There is an article "Big Bomb!" Huawei officially announced today! "Expanded the circle of friends, reading 100,000+ easily, and then a large wave of public numbers have followed up to reprint or release similar content. Raised the "patriotic enthusiasm" of the circle of friends!

The content of the article is:

Last night, Huawei Academia Sinica announced to the world in Japan: a breakthrough in lithium-ion battery technology, the world's first super graphene-based battery debut! At the same time, a super fast-charge mobile phone will be launched at the end of this month to officially open the graphene commercial era!

From now on, Samsung's curved screen, Apple's IOS system, Qualcomm's chips, Huawei's graphene, will become their respective trump cards. The screen Huawei has started the alliance domestic warfare, the system also sent 2,000 people to fully research and development, the chip is a ride on the dust and crush Qualcomm!

Graphene, which is released today, can double the battery life and increase the heat resistance by 10 degrees. It takes only a few seconds to charge in the future! All along, the global manufacturers have been crazy to improve the configuration, but the battery is helpless, China's Huawei once again gave a solution!

Factual situation:

Huawei said it is clear that this is a "graphene-based lithium-ion battery". Even if it is added with "graphene" in its name, it is essentially a lithium-ion battery.

Dr. Li Yangxing, the chief scientist of the Huawei Watt Lab in these news releases, made it clear that the breakthrough in this graphene-based lithium-ion battery technology is mainly to add special additives to the electrolyte to remove traces of water and avoid pyrolysis of the electrolyte. . The modified large single crystal ternary material is selected in the positive electrode of the battery to improve thermal stability. The new material graphene is used to achieve efficient heat dissipation between the lithium ion battery and the environment.

The above analysis has clearly pointed out that the "graphene" in the graphene-based lithium ion battery is only used to improve the heat dissipation effect of the lithium ion battery. The graphene material is not used on the battery electrode to improve the conductivity, and the battery body is not directly used in the graphene material.

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