-What is graphene? Can graphene batteries be used in the electric vehicle industry?

What is graphene? Can graphene batteries be used in the electric vehicle industry?
author:enerbyte source:本站 click365 Release date: 2023-09-06 09:36:12
abstract:
Due to the unimaginable conductivity of graphene, the concept of graphene batteries has become a life-saving straw for breaking through the current bottleneck of battery technology. Especially in the domestic electric vehicle industry, any technological breakthroughs are linked to graphene bat...

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Due to the unimaginable conductivity of graphene, the concept of graphene batteries has become a life-saving straw for breaking through the current bottleneck of battery technology. Especially in the domestic electric vehicle industry, any technological breakthroughs are linked to graphene batteries. Due to Tesla's success, the world has almost seen the future trajectory of the automotive industry, which is also the root cause of the popularity of graphene batteries. Generally speaking, the core of battery technology is charging speed and capacity. The reason why graphene batteries are hot fried is because the conductivity of graphene is several times stronger than that of copper or silver, which is just conductivity.

However, the structure of graphene and the structural characteristics of carbon atoms result in a capacity of only one fourth that of silicon in traditional batteries. So, in order to achieve theoretical efficiency in graphene batteries, it is necessary to combine the advantages of both. Unfortunately, existing technologies and processes cannot achieve uniform distribution of traditional silicon and graphene on the nano scale. Even if this is achieved in the future, cost constraints will result in mass production being a distant matter. Another fatal point is that in the experiment, lithium-ion batteries with graphene as the negative electrode had poor cycling life and fast charging and discharging, but failed twice, making them clearly unusable.

The national level is actively promoting the graphene industry, and the inclusion of graphene in the 13th Five Year Plan for New Materials has become a foregone conclusion. Zhou Changyi, Director of the Raw Materials Department of the Ministry of Industry and Information Technology, recently revealed at the 2015 Graphene Innovation Conference that the 13th Five Year Plan, including the development of the new materials industry, is being formulated and will soon be introduced. Among them, we aim to build the graphene industry into a leading industry for the development of new materials industry, and the industry scale will exceed ten billion by 2020.

There are three basic requirements for electric vehicle batteries: fast charging, large capacity, and strong durability. At present, graphene only meets the requirement of fast charging, and it is almost impossible for graphene batteries to be used in the electric vehicle industry in the foreseeable future.

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