If a battery research expert took the microphone to the stage and said confidently: "The nanotechnology I use will completely subvert the field of energy storage." Then he will be ridiculed by many people. Although there are constantly companies trying to break through the shackles of the battery field, half of the ten companies died of proof-of-concept, four of them were commercialized and difficult to produce, and the remaining one was likely to continue to struggle. Moving forward, but commercialization is not very smooth. However, a recent research team composed of Chalmers University of Technology and National Institute of Chemistry in Slovenia found a new research direction, using aluminum as the anode of the battery , And use nano-scale organic carbon molecule anthraquinone (anthraquinone) as the cathode. In the past research on aluminum batteries, most scientists have chosen graphite or graphene as the cathode of the battery, but because graphite is not particularly rich in global storage, and graphene is a magic superconducting material, it is expensive. Not suitable for extensive commercial use. The organic compound anthraquinone found by Swedish scientists is cheaper and more environmentally friendly, and its energy density has also increased by a factor of two. Aluminum reserves are very rich on the earth, and the related business models are also very mature, so aluminum batteries have the advantages of abundant reserves and low prices. Anthraquinone is also a carbon-based organic substance commonly found in nature and industry, and is widely used in insecticides. Although it is an important component of certain laxatives (such as rhubarb), it is basically harmless to human health. In the paper "Aluminum Metal Anode ‒ Concept and Electrochemical Mechanism of Organic Cathode Battery" published in "Energy Storage Materials", the researchers explained that anthraquinone can store positively charged carriers in the electrolyte to ensure the energy of its device The density is twice that of traditional aluminum batteries. The researchers said: "Because the new cathode material can use more suitable charge carriers, the battery can make better use of the potential of aluminum." Scientists claim that although aluminum storage technology is still a long way from commercial production, the new device will be able to compete with or complement lithium-ion storage. The paper said: "So far, the energy density of aluminum batteries is only half that of lithium-ion batteries, but our long-term goal is to achieve the same energy density." The research team claims that aluminum is in principle better than lithium ions as a charge carrier. Research co-author Patrik Johansson (Patrik Johansson) said: "In addition, these batteries may also greatly reduce the harm to the environment."
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