What is the significance of Huawei's breakthrough in graphene battery research?

At the 57th Japan Battery Conference, Huawei's Central Research Institute Watt Lab announced that it has achieved significant research breakthroughs in the field of lithium-ion batteries: the industry's first high-temperature long-life graphene-based lithium-ion battery.

The experimental results show that the new high temperature resistant technology based on graphene can increase the upper limit of lithium ion battery use temperature by 10 °C, and the service life is twice that of ordinary lithium ion batteries.

As early as two years ago, Huawei founder Ren Zhengfei said in an interview with NetEase and other media that there will be a technological revolution in the next 10 to 20 years. The biggest subversive event in this era is the replacement of the silicon era by the graphene era. For why it is so optimistic about graphene, Ren Zhengfei's explanation is that the chip now has a limit width, the limit of silicon is seven nanometers, and it is near the boundary, and graphite has begun to touch the forefront of the technological revolution.

The current lithium-ion battery has been unable to meet the demand of smart phones, and the endurance capacity needs to be broken. The electric vehicles represented by Tesla are expanding the demand for lithium batteries.

As early as 2015, Huawei announced the joint research with the University of Manchester on the application of graphene to jointly develop the next generation of high-performance technology in the ICT field. The project was initially set up for two years to study how breakthrough technologies in the graphene field can be applied to consumer electronics and mobile communication devices.

"Charge and discharge test under high temperature environment shows that under the same working parameters, the temperature rise of the graphene-based high-temperature lithium-ion battery is 5 °C lower than that of ordinary lithium-ion batteries; 2000 times at 60 °C, the capacity retention rate is still over 70%. 60 ° C high temperature storage for 200 days, capacity loss is less than 13%," said Dr. Li Yangxing.

This research will bring innovation to the energy storage business of communication base stations. The external base station using the high-temperature lithium-ion battery in hot areas can have a working life of more than 4 years. Graphene-based lithium-ion batteries will also help electric vehicles last for a long time in high-temperature environments, as well as safe flight under high-temperature heating of drones.

What is the significance of Huawei's breakthrough in graphene battery research?

If it is completely broken, it is epoch-making; it is not yet complete graphene.

(1) The capacity of the battery, the unit volume, can only increase by a few percent per year;

(2) The capacity of the battery is related to the charging current and charging time. The larger the capacity, the longer the charging time.

(3) The battery capacity of general mobile phones is less than 2000mAH (continuous use for half a day);

Now with the same size of battery, the capacity has increased to 10,000mAH, and how many seconds it takes to charge; it should be said that it has changed the way of life.

Xiao Bian summary : Please ignore these news. Any news about Huawei's graphene innovations is shamelessly edited out of patriotic enthusiasm or sensationalism. Of course, in the end, I will be beaten. Anyway, I always think of graphene. It is blowing bubbles, although in theory, the graphene is blown up abnormally, but it is still waiting for the graphene battery to come out.

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