What are the role of graphene in the lithium battery?

Source: 2020 - 03 - 23 15:02 hits: the role of graphene in lithium battery graphene is one of the most well known material in nature. Because of its various peculiar properties, microstructure caused wide attention of the world's, and even won the Nobel Prize. However, the progress of science and technology will not happen overnight. The first characteristic of graphene to apply to the People's Daily life, there is still a long way to go. Many of the scientists from all over the world are involved in this promising data research and development team, they are quiet, tension, and orderly conduct research activities. However, in terms of development of graphene, some Chinese companies seem to have been leading in other countries has entered the phase of project. Emergency they established graphene industry entities, and to lobby for its capital market funding. We have to say, this is just speculation. To this end, China's business community should have been voted the world's most active speculative group. The reasons are as follows: 1. Exaggerated graphene's influence on lithium batteries, the use of media to attract investment capital market. As we all know, battery energy density and longevity are the two most important evaluation targets, and lithium battery is currently the highest energy density in the secondary battery. But as a project requirement of the power battery, it needs a huge energy density increase, it gives some speculators development space and a good name: graphene lithium battery. Currently, the main precision the manufacture of lithium-ion batteries with graphite as the cathode data, but the positive data often need to add a small amount of graphite to improve its conductivity. But in the end, to improve the battery than can, rely mainly on the positive data ( Such as three yuan, etc. ) Technology. Lithium battery data from the positive and negative data, collecting liquid ( Copper foil, aluminum foil) , diaphragm, electrolyte and the shell. Because carbon is the lightest of the ingredients, it also provides the battery at least than can. We can assume that the negative graphite limits of zero, and its contribution to the positive component than energy should not be more than 20%. As for the media's advantage of quick charge and prolong the service life, is exaggerated. Reporters know? Don't highlight these so-called academic fraud is some ulterior motives? ! They know, 5 minutes of quick charge need a coarse than roller cable, power grid can't bear the heavy load of a sudden, the conductivity is not the main factors of life extension, so why should arouse people's attention? We can only be explained by interest. 2. Graphene future for mankind is so large, so that the so-called 'graphene lithium batteries are difficult to confuse. In graphene many peculiar features, it seems that the combination of lithium battery and graphene will lead to the leaping development of lithium-ion batteries. In fact, the role of it in the lithium battery is limited, not to mention its price ( Excellent graphite 50000 yuan/ton, 1000 yuan/grams) graphene 。 More nature of graphene has a good future, Such as semiconductor, biological engineering) 。 Only the interval engineering play other features looks a bit far. We should not only full of hope about the future of the graphene, and calm, the reality. Compared with the ignorance of Chinese media exaggerated, we should respect those unknown, scientists in graphene.