Lithium-ion has been the main battery material for a long time now and the smartphone industry is looking to switch from this lithium to a more advanced solution. However, due to some challenges, smartphone makers to refrain from using graphene in their smartphone’s batteries.
But now, it seems Huawei has finally stepped foot into this matter, because recently, Huawei has certified a new design patent that is recently published by China’s State Intellectual Property Office.
Before we jump into the details of this patent, here’s some information that you may want to know about graphene:
A traditional lithium-ion battery inside a standard smartphone takes an average of about 90 minutes, and the time shrinks depending on the charger’s speed. On the other hand, a battery with a Graphine cell is much faster and a full charge of a 3000mAh battery takes about 20 minutes with a 60W charging brick.
In terms of lifespan, most of the batteries can manage around 300 and 500 charge cycles but real graphene batteries can last about 1500 cycles for the same capacity and because the cell generates much less heat, which helps to run your smartphone cooler and safer. (via DigitalTrends)
The patent says, “a conductive binder for lithium-ion batteries and its preparation method, lithium-ion battery electrode pole and preparation method, and a lithium-ion battery.”
According to the patent’s description, the tech uses polyvinyl alcohol, polyethylene glycol, polystyrene, starch, sodium alginate, etc. as a binder, and graphene as a conductive material. The amount of graphene is 0.1%-10% of the total mass, while the thickness of the graphene particles is 5nm-50nm, and the D50 particle size is 50nm-5000nm.
This patent shows the use case of two adhesives:
- First accounts for 20%-50%
- The second adhesive uses materials such as polyacrylic acid and polyimide.
The first and the second adhesives are combined through chemical bonds.
In the figure below you can see:
- Silicon particles
- A binder
Silicon particles are described inside the hollow structure and even if they expand they won’t lose the performance.
In order to increase the energy density of current lithium batteries, graphite anode materials are often replaced with alloy materials such as silicon.
However, silicon will expand in volume during the cycle and fall off, which will surely cause a rapid drop in battery life. To solve this issue, the patent uses a new type of conductive adhesive to bind silicon particles and combine the adhesives and conductive agent into one.
When the silicon particles are expanded with lithium insertion, the polymer chain of the binder stretches, when the silicon particles are de-lithiated and shrink, the polymer chain of the binder is wound and contracted again, so that the graphene and silicon are always in contact.
After 50 cycles of batteries made using this patent, the battery capacity retaining rate is over 90% and discharge efficiency is as high as 97% and 98%.
It’s also stated that the conductive binder acts as both a conductive agent and a binder, which can increase the content of lithium-intercalation active materials in the positive and negative electrodes, thereby increasing the energy density of the cell.
So, the Chinese tech giant is not fully shifting to graphene but it’s planning to use around 10 percent of it. Since Huawei is using only a limited amount of graphene, the main aim of this patent is to boost the lifecycle and some of its performance of the exiting lithium-ion battery, which could give positive results in overall battery performance.
Source – ithome
Huawei aims to fight Amazon, Microsoft, and Alibaba in Asia-Pacific cloud service market
Huawei is looking to become a top-three cloud service provider in the Asia-Pacific region in the coming three years, or even better than the current provider in the next half-decade, says a recent report.
This Chinese tech firm aiming to compete against Amazon Web Services (AWS), Microsoft Azure, and Alibaba Group Holding. These are the top three IaaS (infrastructure as a service) cloud services providers in the past year. However, Huawei too dominating the Chinese cloud market in the second position after Alibaba and has more efforts to jump to the top.
The US-Sanction has forced Huawei to make business adjustments. Since then the company has been seeking other markets and cloud service is most suitable with its digital resources and on-demand service.
Huawei’s Market Status and Resources:
According to Gartner, Huawei recorded the sixth-fastest growth rate globally in the cloud market with a 19.7% market share. However, it’s still far to defeat the market ruling Alibaba, which owns the 39.8% share in China.
Nobody concludes anything even before trying it Likewise, Huawei has approximately 220 puls cloud services, 210 solutions, 19,000 parters, and over 4,000 cloud applications to enter the competition.
Why Huawei aiming to Asia Pacific Region:
An IDC report reveals that the Huawei cloud service market is meant to reach over 48.4 billion USD this year, showing a significant rise compared with 36.4 billion USD in 2020.
Furthermore, greatly affected by the US-Sanction, the company wants to invest in the market, which is free of the US-Sanction impact. That’s why Huawei is shifting strategy and developing new software for the cloud service market said Jay Chan, vice-president of Huawei’s Asia-Pacific operations.
Moreover, the company has announced a US$100 million startup support plan for the Asia Pacific region. It aims to support 1,000 startups under Huawei cloud-plus-cloud program for the next three years.
Huawei providing technical guidance and plan to recruit students on 7th Internet Plus competition
The 7th Internet Plus College Student Innovation Competition has been organized in Shenzhen. For the first time, Huawei plans to start the recruitment for Kunpeng, AI Computing, Huawei Cloud, ICT, consumption Zheyun and OpenHarmony. Furthermore, the company is also providing guidance and training on these technologies with the aim to promote innovation with the competition.
The only purpose is to enhance the subject knowledge as well as train the students on how to implement it in the industry. From basic software such as operating systems, AI computing framework, and database management to market-oriented applications, this training program will cover all subjects. The current popular applications include-
- Kunpeng’s full-stack software platforms
- Kunpeng hardware
- Operating system openEuler
- Enterprise database openGauss
- Data virtualization engine openLooKeng
- Kunpeng application enablement suite BoostKit
- Ascend AI full-stack software applications
- Ascend hardware
- Heterogeneous CANN computing architecture
- AI computing framework MindSpore
The participants are required to used Huawei resources such as Ascend AI software and hardware platform. For the primary preparation, the candidates can get the Huawei Cloud resource vouchers and expert guidance and training. In this line, the Huawei Kupeng Community, Ascend community, and many fellow partners are providing about 500 excellent internships with the best wishes to perform well in this internet plus competition.
Below you can check the competition timeline and price distribution-
- Registration Period: Until 31 August
- Semi-Finals: Before September 30
- Finals: Will Organized in late October
There will be three awards- gold, silver, and bronze with certification for the top winners awarded. Furthermore, individual awards will be given to the total number of awards won by each region and school, and scoring range of the provincial, municipal outstanding organization awards, and the collective awards of colleges and universities.
Huawei and Xiaomi invested a big capital at this OLED driver chip maker
Huawei Hubble has recently invested huge capital in Ou Rhende Microelectronics Technology, which is an OLED driver chip maker. After the investment, the company’s registered capital increased from 37.65 million to around 57.06 million, which is an increase of approx 51.56%. Alongside Huawei, Xiaomi also invested in the firm.
Established in 2019, the Ou Rhende is an OLED driver chip manufacturing company. The legal representative of the company is Zhang Jinfang with 50.91 percent of shareholdings. While Huawei Hubble is the second-largest shareholder with nearly 16.49% of shares.
This piece of information was a surprise for the whole semiconductor market. First, Huawei has begun the trial production of its own OLED driver ICs and then this investment. It shows that the company wants to develop the OLED driver chip in its home country.
It is also being said that these investments could be a threat to the South Korean and Taiwanese chip manufacturing companies, which currently capture most of the semiconductor market.
Huawei’s competitors and current market conditions of OLED driver chip industry
Looking at the current market share of the semiconductor companies in terms of OLED driver chips, Samsung grabs the market with nearly 50.40% of the market share. And the three other Korean companies account for approximately 38%.
This data suggests that the four Korean companies occupy nearly 90% of the OLED chip market. Whereas the Taiwanese chipmaker has the rest 10.2% market.
In this situation, Huawei will have to be very precise with its strategy to share its spot among these leading companies. Further, the company itself has HiSilicon to develop its own chip.
As per the recent report, Huawei’s HiSilicon is preparing to mass-produce the OLED chips in China in the first half of 2022. The company will manufacture chips based on the 40nm process and aims for a production capacity of 200,000 to 300,000 units per month. Read more
(Via – IT Home)