Huawei's new battery is not "graphene-based lithium battery" or "graphene battery"

"On December 1, Huawei Sinica watt laboratory in the 57th Japan battery conference, announced in lithium ion batteries achieve significant research breakthroughs, introduced the industry's first high temperature long life graphene lithium ion batteries.The experimental results showed that graphene based new high temperature resistant technology can use lithium ion battery limit temperature of 10 ℃, the service life is 2 times the normal lithium ion battery."

Huawei graphene lithium battery is so much popular this message once released, would attract media wildly popular, we take a look at the media coverage:

Look again at how Huawei itself said, here is Huawei's website screenshot

Recently, the central institute of watt laboratory announced in the 57th Japan battery conference achieve significant breakthroughs in the field of lithium ion batteries, the first industry of long life and high temperature graphite alkenyl lithium ion batteries.The experimental results showed that graphene based new high temperature resistant technology can use lithium ion battery limit temperature of 10 ℃, the service life is 2 times the normal lithium ion battery.

We see that Huawei put our this new technology, called "grapheneLithium electricityPool ", also adopted the idea that part of the media, and some of the media is directly referred to as "graphene" battery, may have to ask a classmate, a technology, why there are so many tricks?What should I believe?

Key, small make up today, Huawei launched new battery is not "graphene based lithium-ion batteries," more than "graphene batteries"!

Huawei is a breakthrough of the new battery?And graphene have relationship?

Learned, Huawei graphene base lithium ion battery is mainly suitable for high temperature and extreme environment, its principle is through the additives in the electrolyte with high temperature resistance to decomposition, cooperate with the positive, high temperature stability of the large single crystal thermal stability improved battery, at the same time using graphene for efficient heat dissipation.

Huawei watt laboratory chief scientist Dr Li Yangxing pointed out that graphene based high temperature 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, which can realize the lithium ion battery between the environment and efficient heat dissipation.

Charge and discharge test showed that the high temperature environment under the same working parameters, the graphene based high temperature lithium ion battery than ordinary lithium ion battery to reduce temperature 5 ℃;60 ° C high temperature cycle 2000, retention capacity is still more than 70%;60 ℃ high temperature storage for 200 days, capacity loss is less than 13%.

So we clearly see, Huawei this battery has three technological breakthroughs, graphene is as heat dissipation material, in this part, and the three technical breakthrough is synergy power, there is no major minor points.

The following is your second question,

The new batteries do not have any graphene, why not call graphene base lithium battery?

Lithium ion battery is how to define?

"Lithium battery", is a kind of lithium metal or lithium alloy anode materials, the use of water battery electrolyte solution.Lithium battery can be roughly divided into two categories: lithium battery and lithium ion batteries.

Lithium batteries are generally use lithium manganese dioxide as positive pole material, metal or its alloy metal anode materials, the use of water electrolyte solution of battery, belongs to a battery;

Lithium ion battery: a secondary battery (rechargeable batteries), it is mainly rely on lithium ions move between the positive and negative to work.In the process of charging and discharging, Li + embedded back and forth between the two electrodes and embedded off: when charging, Li + embedded from the anode, after anode, electrolyte embedded in the cathode in the rich lithium state;Discharge is the opposite.Materials containing lithium batteries are used as the electrode, is the representative of modern high-performance batteries.

So, both lithium battery and lithium ion batteries, the most important thing is the electrode material of lithium, and rely on lithium ions move to charge and discharge, this is the call it the the most fundamental reason of lithium-ion batteries.

We look at the battery, Huawei its cathode material is single crystal ternary material, the current development of ternary material on these, sliding (nickel cobalt manganese acid lithium) NCA (aluminum nickel and cobalt acid lithium), anyway is lithium, but also by lithium ion in the movement of the positive and negative electrode to charge and discharge.So the lithium ion battery.

The graphene?By Huawei, the public data, graphene is just as the heat dissipation in the battery material, this does not change the basic nature of battery, so can't call it the graphene lithium ion batteries.

Don't know if you remember in July, east lumena electric release "ene king" mobile power supply, the graphene lithium ion battery, why is this so called?Because of this battery cathode material is graphene coating lithium iron phosphate, that is to say, in the anode material graphene, so I can call.

Graphene battery?There are real graphene battery?

Graphene batteries?To tell the truth, small make up also didn't see academia have clear definition.If the definition of reference for lithium ion battery, graphene batteries must be graphene electrodes as the main material, but for now, I can't see the battery still.We see all the disguise of "graphene batteries" are mixed with graphene lithium ion battery or lead acid battery, not real graphene battery.

Huawei this battery has enough cattle, no need to use the graphene as a stunt

Back to Huawei on the battery, the new battery is the best technology of long life and high temperature, 60 ° C high temperature cycle 2000, retention capacity is still more than 70%;60 ℃ high temperature storage for 200 days, the capacity loss less than 13% ", the data can completely kill at present, most of the lithium batteries on the market, this is the amazing of this battery!So, Huawei plans to use this battery in some high temperature environment, such as tropical communication stations, unmanned aerial vehicles, and so on.

The page contains the contents of the machine translation.