Do you know what the breakthrough of Huawei new graphene battery?

Recently, it is reported that major breakthroughs were made in Huawei graphene battery maxed out battery industry circle of friends. "The first high temperature long life graphene lithium ion batteries"" service life is 2 times of the normal lithium ion battery" statements shock the public at the moment. A lot public accounts follow the trend, or even is elevated to the height of the national enterprise of our country.

If you memory is not very bad, should remember Huawei last year released a piece of news about graphene battery, also caused a sensation in the industry. At the time, Huawei said its research and development of graphene quick charge battery, 5 minutes to 3000 mAh battery charge to 48%.

So, when it comes to Huawei graphene battery development, public's first reaction is associated with quick charge technology. In practice, however, the maxed Huawei graphene battery circle of friends, but has nothing to do with quick charge technology.

What can we call the graphene batteries?

According to the Huawei watt Li Yangxing laboratory's chief scientist, the new Huawei graphene lithium ion battery technology breakthrough came mainly from three aspects:

1, add special additive to the electrolyte, removal of trace water, avoid the high temperature of the electrolyte decomposition;

2, selection of battery positive electrode modification of single crystal ternary material, improve the thermal stability of materials;

3, Using new material graphene, realizing the efficient heat dissipation between lithium ion battery and the environment.

Breakthroughs in the three together, let Huawei new battery high temperature performance is outstanding, "kill most of currently on the market lithium battery". The effect of graphene is "highly efficient heat dissipation, rather than a battery of the positive or negative material".

This world has surprised. After the industry has long argued that Huawei graphene battery research is based on the development of graphene is strong conductivity of quick charge technology.

It is well known that graphene because its new two-dimensional carbon materials, has a large specific surface area, is recognized as the conductive performance of the best known materials; At the same time, because of graphene is a single layer of carbon atoms, both up and down surface can be stored lithium ion, itself also can be used as anode materials for lithium-ion secondary battery.

As a result, some in the industry will "add graphene electrode material ", or "graphene as a conductive agent" lithium ion battery, called graphene batteries. Also have some people object to the idea that whether "electrode materials with graphene material", or add "graphene as conductive agent, the so-called graphene battery charge and discharge process is still done by lithium ion migration, is still essentially lithium ion batteries. The so-called graphene battery can't from the conceptual category of the lithium ion battery.

However, even the "add" graphene materials in electrode materials and the concept of graphene as conductive agent, can draw from the Li Yangxing expression, the so-called new Huawei graphene battery is not consistent.

Huawei new battery breakthrough in where?

So, this time Huawei whether there is a new type of lithium ion battery technology progress and the practical significance? The answer is yes.

Previously, the battery industry focuses of graphene on its excellent conductivity. In essence, graphene based on its material properties, thermal conductivity is also very good.

As is known to all, "" thermal runaway is fatal for lithium ion batteries. On the one hand, the lithium ion battery in high temperature will make the capacity loss is more and more quickly, and this process is irreversible; Like three yuan, on the other hand, the poor thermal stability of battery materials, in under the ambient temperature of 200 ℃, decompose and release oxygen, and the flammable liquid electrolyte in the battery, carbon materials, is the, the heat generated by the further aggravate the anode decomposition, release a similar huge energy of explosive. The ternary battery Safety has always been the industry is difficult to solve the problem.

And Huawei, the research and development of the new battery is the ternary lithium ion batteries Laboratory, Huawei watt skillfully use the high thermal conductivity properties of graphene to heat dissipation, greatly improves the high temperature resistant performance of the battery.

Allegedly, at high temperature, the temperature rise of this new type of lithium ion battery 5 ℃ lower than the normal lithium ion battery, the work environment at the same time limit temperature range compared to common lithium ion battery has improved 10 ℃, service life is 2 times the normal lithium ion battery. In addition, this new type of lithium ion battery can be achieved under the high temperature 60 ℃, 2000 times, a charging circuit battery capacity is more than 70%, in the high temperature of 60 ℃ storage for 200 days, the capacity loss is less than 13%.

Huawei, said the new lithium ion battery is mainly used for high temperature and extreme environments, such as high temperature honeycomb base stations all over the world. May be applied to electric vehicles, drones and other later rely mainly on battery power module of the device.

The personage inside course of study points out, if use the new lithium ion battery was assembled on the phone, because the battery temperature is raised 10 ℃, mobile processor performance would be free, to China for the future of smartphone control provide great help fluency and performance improvement.

The page contains the contents of the machine translation.