Will graphene be a breakthrough in lithium battery materials? Graphene lithium-ion batteries are emerging.

　　Since this year, the market has been enthusiastic about graphene materials, and many manufacturers and scientific research institutions are making more and more attempts to apply graphene as a new battery material. He Shiguo, the person in charge of the Alene Nano project, once said that the battery cathode material of Alene Nano is the core technology of pure electric vehicle batteries. So, will graphene be a breakthrough in lithium battery materials? Can you provide one more solution option for the current problems encountered by lithium-ion batteries?

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　　Graphene lithium batteries emerge

　　Graphene has a unique two-dimensional structure, excellent performance and various potential application values. Graphene-based nanomaterials are an attractive electrode material for lithium-ion batteries, especially for high-energy-density and high-power-density batteries. The graphene battery is a new battery developed by utilizing the characteristics of lithium ions that shuttle rapidly and massively between the graphene surface and the electrode.

　　Interestingly, in addition to Zhejiang Alian Nano Technology Co., Ltd.’s investment in building a graphene base, Yulong Co., Ltd. also recently announced an increase in investment in graphene production. It is reported that Yulong Co., Ltd. will increase its investment by RMB 300 million in Ningxia Hanyao Graphene Energy Storage Material Technology Co., Ltd., which will be mainly used to speed up the construction and production of Ningxia Hanyao lithium-ion battery graphene ternary cathode material and conductive slurry project production line. Drive production capacity and release to promote the development of new business.

　　The layout of graphene lithium-ion batteries by relevant manufacturers in the lithium battery industry chain may accelerate the emergence of graphene lithium-ion batteries.

　　In the context of national policies leading the development of lithium batteries towards high energy density, graphene materials are a good candidate for the next generation of battery materials. Graphene has always been considered a representative material among the new generation of materials. Graphene peeled from graphite is a thin film of carbon atoms, which is characterized by high physical and chemical stability. The material is 100 times more conductive than copper and more than 140 times faster than silicon. This is why graphene ball batteries charge five times faster than existing rechargeable batteries. With its excellent material properties, graphene is favored by research institutions and lithium battery companies.

　　At the beginning of this year, we learned from the website of the Ministry of Science and Technology that South Korea's "Central Daily News" reported that a research team at Samsung Electronics Institute of Technology successfully developed a new battery material "graphene balls" that have a charging capacity 45% higher than existing lithium-ion batteries. The speed is increased by more than 5 times. Researchers have discovered that after adding silica to the high-strength, highly conductive graphene material, graphene can be synthesized in large quantities. The synthesized graphene exhibits a three-dimensional shape like popcorn, so it is called "graphene ball" , using this graphene ball material as anode protective film and cathode material for lithium-ion batteries can increase charging capacity, shorten charging time, and ensure high-temperature stability. South Korea plans to commercialize "graphene ball" lithium electronic batteries within five years.

　　At the end of March this year, the graphene new energy industrialization project settled in Yinchuan Economic and Technological Development Zone plans to invest 8.5 billion yuan to implement projects with an annual output of 30,000 tons of graphene-modified ternary materials and 10,000 tons of graphene conductive slurry. 5 projects, after completion, can form a basic industrial chain of graphene energy storage materials in Yinchuan City, and form an annual output value of more than 15 billion yuan.

　　Not long ago, the Massachusetts Institute of Technology in the United States has successfully developed a flexible photovoltaic panel with a graphene nanolayer on the surface, which can greatly reduce the cost of manufacturing transparent deformable solar cells. This kind of battery may be used in night vision goggles, Used in cameras and other small digital devices.

　　Although graphene batteries are favored by many manufacturers and investors, there are also objections. First of all, the cost and process complexity are high. Some scholars believe that graphene batteries may only exist in laboratories, and commercialization is still relatively difficult. Oak Ridge National Laboratory and the well-known graphene industry manufacturer Vorbeck have disclosed the research results of graphene. They believe that the reproducibility of graphene work is often very poor, and the technology developed is seriously out of touch with practical goals. This phenomenon has been widely criticized by knowledgeable people in the scientific research community and the industry.

　　Materials are one of the three pillars of modern civilization. The discovery of new materials and their cross-field applications play a vital role in the development of science and technology. The battery industry has evolved from traditional lithium batteries to later cobalt-lithium batteries, to today's high-nickel batteries. Graphene may be a breakthrough for the next generation of materials for power batteries. The development of battery technology is also promoting the iteration of various electronic terminal products.

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