What are the important advantages and disadvantages of graphene batteries?

Electric vehicles powered by graphene batteries can travel 1,000 kilometers and charge in less than 8 minutes. The service life is relatively long. Graphene battery life is four times that of traditional hydrogenated batteries and twice that of lithium-ion batteries. The light weight of graphene can reduce the weight of batteries produced by lithium-ion battery spot welders to half of traditional batteries, which can increase loading The efficiency of the battery of the machine. Cost reduction The company that produces graphene batteries claims that its cost is 77% lower than that of lithium-ion batteries. Traditional conductive carbon/graphite is very cheap. It is sold in tons, while graphene is too expensive. The price of tens of thousands, which is not affordable for ordinary companies. A few years ago, the price of graphene was as high as 5,000 yuan per gram, far exceeding the price of gold, which was unbearable for ordinary consumers. Graphene batteries are temporarily unable to replace lithium-ion batteries. Compared with black technology graphene technology, the current mainstream battery type as a PACK lithium-ion battery in the new energy vehicle market is affected by Tesla due to its relatively high energy density and mature cost advantages. The favor of global new energy automobile manufacturers. In fact, the current application of graphene in batteries is important in combination with silicon. The so-called graphene battery is basically a lithium ion battery. Regarding lithium-ion batteries, graphene is a carbon-based anode material, and there is no way to fundamentally change the energy ratio of lithium-ion batteries. Instead of the original graphite in the negative electrode of the battery, although the total capacity and charging speed of the lithium-ion battery can be increased, the performance improvement effect is limited and not so strong. Graphene batteries cannot replace lithium-ion batteries. An important reason for hindering graphene batteries is that the main reason for large-scale production is internal. The cost of the entire graphene battery is very high, preparation is difficult, and mass production is almost impossible. Some amazing data released today basically come from extremely high-purity graphene batteries. These batteries only appear in the concept stage or in the laboratory. The use of doped graphene batteries for lithium-ion batteries is conductive agent or electrode lithium intercalation material. However, compared with the traditional low-conductivity carbon and graphite cost, the performance improvement brought by the former is not enough to attract manufacturers. The high specific surface area and other properties of the graphene material itself are compared with the existing technology system of the equipment industry of lithium-ion battery packaging equipment. incompatible. Disclaimer: Some pictures and content of articles published on this site are from the Internet. If there is any infringement, please contact to delete. Previous: Why do lithium-ion batteries need to be tested?