Views: 2 Author: Site Editor Publish Time: 2021-01-26 Origin: Site
How many people are still confused about the concept of graphene, knowing one and not the other?Today, the materials doctor combined with the knowledge of material testing to thoroughly understand what is graphene battery and what is graphene-based lithium battery?Go out so outside, also unapt this fire several years of material get mixed up, say you are not professional!
Graphene cell
Let's start with the graphene battery. The graphene battery is a new kind of battery developed by a foreign instrument company, which takes advantage of the characteristics of lithium ions moving rapidly and in large quantities between the graphene surface and the electrode.The new battery can squeeze hours of charging time down to less than a minute and increase battery capacity.
Experts believe that the development of this kind of battery will eventually revolutionize the battery industry and bring innovation to the new energy industry. However, graphene has been called a "magic material" and has been widely discussed on the Internet because the raw material is too expensive and scarce to be mass-produced.In the past, some manufacturers have claimed to be using "graphene batteries" in mobile phones or cars, but they are actually using "graphene-based lithium batteries", which is a different concept.
Researchers at the Chongqing Institute of Green and Intelligent Technology under the Chinese Academy of Sciences said the graphene battery concept is a lifeline to overcome the bottleneck of battery technology due to graphene's unimaginably conductive ability.Especially in the domestic electric vehicle industry, every technological breakthrough is largely linked to graphene batteries.
What about "graphene-based lithium batteries"?
Graphene-based lithium batteries
Graphene lithium battery is not graphene, it is added to the graphene as a medium of lithium-ion battery, in plain English or lithium-ion battery, just join graphene effectively improves the a heat dissipation and lifespan of the battery, {increase capacity} of is exaggerated propaganda, lithium batteries have not have this function, after finishing, for some information about graphite material little doctor in our summarizes several alkenyl lithium battery breakthrough role:
Breakthrough effect | Advantages over ordinary batteries |
Avoid the high temperature decomposition of electrolyte, effectively improve the heat dissipation function | .The temperature rise of 5℃ is lower than that of ordinary battery, and the high temperature circulation of 60℃ avoids the high temperature decomposition of electrolyte, which is effectively improved 6000 times.The cooling function
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、The positive electrode is a modified large single crystal ternary material, which improves the thermal stability of the material | The loss of capacity is less than 13% when stored at 60℃ for 200 days |
加 The addition of graphene material improves the heat dissipation function between the lithium ion battery and the environment | The positive electrode is a modified large single crystal ternary material, which improves the thermal stability of the material. Graphene material is added to improve the lithium ion The battery can also maintain a life of more than 4 years in hot areas, which can not only help the long endurance of the electric vehicle, but also drive The heat dissipation between the battery and the environment functions for the flight life of the UAV. |
In summary, the "graphene" in graphene-based lithium-ion batteries is only used to improve the cooling effect of lithium-ion batteries;
There is no graphene material on the electrode of the lithium-ion battery to improve the electrical conductivity, nor is there a direct use of graphene material to make the battery body.
Graphene materials are amazing, but the current technology is not fully graphene.Based on this, we can only use the advantages of graphene on the existing technology to realize the improvement of lithium battery technology, so that the battery life is longer and the heat dissipation is better.
