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Lithium-ion battery with graphene material tech patented by Huawei, could increase durability and performance

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Huawei Smart Charging Mode

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.

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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)

Patent Details:

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:

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  • 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:

  1. Silicon particles
  2. Graphene
  3. A binder

Patent Figure

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.

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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

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Most of Deng Li's smartphones are from the Huawei ecosystem and his first Huawei phone was Ascend Mate 2 (4G). As a tech enthusiast, he keeps exploring new technologies and inspects them closely. Apart from the technology world, he takes care of his garden.

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HarmonyOS Connect evolves over 60 million new devices in 2021

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HarmonyOS Connect devices

October 22md witness the HarmonyOS Connect Partner Summit with various announcements of new releases, and devices under HarmonyOS Connect ecology. Since the announcement of this brand, it gave new achievements and shown significant growth.

At present, over 1,800 hardware ecosystem partners have joined this Huawei platform. Furthermore, the product categories have achieved 4,000 counts in terms of the official certificates. On top of this, in 2021 HarmonyOS Connect has more than 60 million new devices.

The new products are applicable in various industries that include smart home, sports and health, smart travel, audio-visual entertainment, education, office, and others. The company’s industry partners have made equal contributions to this new device lineup.

HarmonyOS Connect: Fully Upgraded Platform

Speaking of a basic level, the HarmonyOS Connect certified devices are showing notably improved performance. The previous methods have been revised and introduced two new methods called- “rely on one” and “scan and sweep”. In this line, the Widgets have been elevated with a new service center and multi-device entrance.

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For instance, smart door locks can achieve real-time visual interaction with the Widgets. In this manner, not only the fingerprint recognization has been improved but various services including one-click interconnection also get new functionalities.

HarmonyOS Connect devices

Furthermore, the certified products have the advantages of the HarmonyOS SuperDevice feature. It allows other devices to join and delivers a multidevice smart experience in various scenarios.

If we take health or exercise as an example, we can have better results through multi-device connections including a smartphone, a smart accessory, and a smart scale. Besides, the vertical applications including basic, enhanced, and application service packs have provided new applications.

At present, the hardware packages synchronize with 11 mainstream chips integrated with 11 modules and, 20 other modules. Furthmore, technology certification capability has been upgraded, from a monthly certification of 100 SPU to 400 SPU to help the manufactures quickly link the devices with HarmonyOS Connect Platform.

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(Source: Ithome)

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Huawei’s conjoined energy-saving catalyst project won Sustainable Development Impact Award

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Huawei energy-saving catalyst project

On October 22nd, Huawei’s conjoined smart energy-saving catalyst project won Sustainable Development Impact Award. The 2021 Global Telecommunications Management Forum (TM Forum) acknowledged the project. Network firms including China Telecom, China Unicom, and China Mobile equally participate in this project.

This energy-saving catalyst project was collaboratively built by Huawei has been appreciated by global communication service providers (CSP) and their technology partners. Besides, the TM Forum focuses on developing and verifying innovative concepts.

On the other hand, this project promotes the telecommunications industry and contributes to the digital transformation of the industry. Thus, the jury team congratulates the winning team for their great accomplishments for the Smart IDC smart energy-saving catalyst project.

Huawei energy-saving catalyst project

Smart IDC Smart Energy-Saving Catalyst Project:

The project implements innovative technologies in the fields of  AI, big data, and digital twins. Furthermore, it showcases the feasible schemes for efficient use of water resources and conducted trials with multiple operators. This project has also undergone the comparison phases and cross it with flying colors.

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Besides, the global dual carbon has made “Green” a necessary standard. Thereby, the project team has conducted an in-depth discussion on AI and related technology to ensure a comprehensive user experience.

At the same time, the company has successfully achieved the integration of cloud, edge, and end with the mainstream data centers. Additionally, the different cooling approaches include air cooling, water cooling, and indirect evaporative cooling has been adopted in the data centers.

Smart IDC Data Centers:

After implementing the technology from the Smart IDC Smart Energy-Saving Catalyst project, Huawei data centers have 10-15% less electricity consumption. The operating load rate for the 1000 cabinet center with 5000W power is 40%. Meanwhile, the electricity costs have been reduced by 1.7 million Yuan.

Furthermore, the TM Forum catalyst project accelerates the promotion and development of the telecommunications industry. Huawei determines to further take this work to enhance the capabilities of global as well as native network operators.

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Huawei BladeAAU Pro positioning in STC network web of Saudi Arabia

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Huawei BladeAAU Pro Saudi Arabia

Huawei has completed the first batch deployment of BladeAAU Pro solutions for Saudi Telecom Company (STC) in Saudi Arabia. Now, STC’s network web will support Sub3G full-band passive antennas integrated into a single pole.

This implementation of BladeAAU Pro solutions has increased the network performance in all aspects. In addition, the STC’s minimalist network strategy gains strong backup support to deliver an enhanced user experience in the country.

Huawei BladeAAU Pro: Large-scale Deployment, Saudi Arabia

In 2020, the number of 5G users has shown explosive growth in the Saudi STC network web. Thereby the network requirements satisfy the demands of huge numbers of 5G users becomes higher. Thus, the company needs an immediate and large-scale deployment of Massive MIMO.

This is how Huawei BladeAAU Pro solutions take charge in Saudi Arabia providing a full-band passive antenna network. It helps the current networks in achieving a single-pole Sub3G Massive MIMO support.

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Huawei microwave field test

Related: Huawei BladeAAU Solutions wins Informa best RAN Evolution Project Award

The BladeAAU Pro has innovative antenna solutions that use a modular design to combine 5G active modules and passive antennas. Furthmore, the passive module combines different band antennas in one unit. Additionally, a single tool is enough to maintain its flexible design.

The solutions have benefits including minimal site deployment, lower pre-construction charges, and increased performance. Moreover, the uniformed network quality has been realized in every corner of the web.

Besides, both parties plan to continue to work with each other. Under win-win and open cooperation both determine to verify the latest 5G technology and implement them on large scale for commercial applications.

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However, this is not the only Massive MIMO Solution of the company but it has its own benefits. This solution also won the Best Mobile Network Infrastructure awards at the 2021 Global Mobile event in July this year.

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