Life, often plagued by insufficient battery capacity of electric vehicles and smart phone users. Stable performance and reasonable price of super cell is a human dream for many years. People at this stage to describe the image of the super cell can be summarized as follows: a single charge, can make electric cars with 1000 km, so the smart phone to play a week, charging time can be controlled within a few minutes, the best available wireless charging. The market size of this super cell is not less than $ 1 trillion. Currently, the US, China, Japan and South Korea are in the sprint super battery.

     The most commonly used lithium-ion batteries in 1991 began to commercialize lithium cobalt oxide, lithium iron phosphate and manganese lithium 3 types. The highest energy density lithium cobalt oxide, but unstable at high temperatures, the other two energy density is not high. Rechargeable batteries fifth generation - lithium metal batteries was born in 1996, in safety, specific capacity, self-discharge rate and cost performance are better than lithium-ion batteries. But from the super battery requirements, there is a large gap.

   Graphene is expected to lead to new breakthroughs in battery. 2004 Birth of graphene, which is characterized by good thermal conductivity properties: as an electrical conductor, its conductivity can be comparable with copper; as a heat conductor, it is the best existing materials, even more commendable is that this kinds of materials in thin time, still very high hardness. Graphene has been identified as the major industrial countries, an important material in-depth development. Currently, research on graphene used in batteries are basically three directions:

  First, graphene formation of a new system battery. That battery was fabricated graphene a new system, the performance is subversive, referred to as "super cell." Battery produced using this material, the energy density exceeds 600wh / kg, is five times the power lithium battery, a charge time of 8 minutes, can travel 1,000 kilometers; only half the weight of a lithium ion battery cells, the volume will be substantially reduce, reduce the use of its own weight of the car battery; battery life is longer, it is four times that of traditional hydride batteries, lithium batteries two times; the cost is 77% lower than the current lithium batteries. These physical parameters are in line with super batteries.

  Second, graphene strengthen the existing battery performance. Graphene applied to the existing battery, improvement to enhance lithium batteries, solar cells and other battery performance, trying to reach the super battery performance. For those who have invested heavily in building a lithium battery plant business in the short term it is difficult to invest in the development of a new battery, graphene features to enhance the performance of existing lithium, perhaps more realistic. On graphene property is as the thinnest, hardest, good electrical conductivity and flexibility has a strong nanomaterials, graphene can be widely used in lithium ion batteries, super capacitors and solar cells and other storage products. The special structure of graphene in its decision to upgrade the battery performance lithium-ion obtain a high rate channels, can help to break the long-term lithium battery technology insurmountable obstacles. At present, graphene and silicon as the raw material research and development of cell phone batteries, each charge in 15 minutes, you can let the phone run for a week.

   Third, graphene catalytic fuel cell performance. Substitution of platinum with a special graphene material as a catalyst, to produce the required hydrogen fuel cell fuel. The fuel cell is a fuel having chemical energy directly into electrical energy generating means. Compared with other batteries, having high energy conversion efficiency, no environmental pollution. "Proton conductive film" is the core part of the fuel cell technology. Existing proton film there is often a fuel leak, thus reducing the effectiveness of the battery. However, the proton can be more easily "through" and other two-dimensional graphene material, and other materials are difficult to pass through, which can solve the problem of penetration of the fuel, thereby enhancing the battery performance.

 Application graphene technology is still in its infancy, especially to make the battery size and weight significantly reduced graphene material, low yield, high production costs, an important causes of graphene battery difficult industrialization. Thus, by further innovation, improve technology, reduce production costs, it is the key to the future development of graphene battery. At present, China in the development and application of graphene forefront of the world, there are a variety of graphene and graphene battery lithium-sulfur batteries to achieve a breakthrough

Of course, the global research and development in the field of batteries is not limited to graphene, Japan in research and development of magnesium with a higher performance, lower cost batteries; Sweden is studying the use of carbon fiber to improve the performance of lithium batteries. However, these new technologies to be truly practical, even the formation of a huge industry, but also need to go through the baptism of the market.

In short, look for a super cell process is the process of technological innovation, but also the industrial structure optimization process. Graphene as a representative of a super cell to achieve a breakthrough day, everything will be included by the electric drive device of change of electric cars, mobile phones, computers, etc., for a variety of industries will have a subversive sense, it will open a new life for mankind page.