Speaking of new energy vehicles, from an international point of view, China and the United States are at the forefront, and the market is firmly occupied by China and the United States. However, the problems of new energy vehicles in China and the United States are similar, and battery life has not been able to break through the shackles. As an old country in the fuel vehicle industry, Japan is also quite anxious in the field of new energy. However, in November 2021, the Chinese version of "Nihon Keizai Shimbun" "Nikkei Chinese Network" publicly stated that Japan is currently actively developing a new generation of " Light Lithium Sulfur Battery” and achieved good results. Although it is still some time before full popularization, the dawn can already be seen. Once the research and development is successful, not only the automotive field, but Japan can also enjoy the dividends brought by the entire new energy field. What is going on?
The lithium-sulfur battery developed by Japan uses sulfur as the positive electrode and lithium as the negative electrode. Lithium sulfide produced by the chemical combination reaction is dissolved in the electrolyte whose main component is lithium nitrate, and can be charged and discharged during the process of reducing lithium ions to simple substances.
But if Japan is boasting so well, wouldn’t the new energy market have been turned upside down long ago? Although the capacity of traditional lithium batteries is not as good as that of "light lithium-sulfur batteries", they have the advantages of environmental friendliness, long cycle life, and good safety performance. The fatal shortcoming of the sulfur battery is that the lithium sulfide produced by discharging the battery will react with the electrolyte to form a paste-like fluid substance. As the charging and discharging time increases, the content of the paste-like fluid substance will increase. Things will hinder the movement speed of lithium ions. In short, as the use time of lithium-sulfur batteries increases, its internal resistance will also increase, thereby reducing battery life.
Lithium-sulfur batteries use sulfur as the positive electrode of the battery and metallic lithium as the negative electrode. Although sulfur is abundant on the earth and the price is very cheap, lithium is different. The mineral raw material for extracting lithium is mainly spodumene (containing Li2O5. 8% to 8.1%), lepidolite (containing Li2O3.2% to 6.45%), lithium lithium ore, and looking at the world, only three countries have relatively rich lithium reserves, that is, China, Chile and Argentina, the world's 94 % of lithium carbonate comes from these three countries.
So here comes the problem. In the field of new energy vehicles, China and the United States are at the forefront. Looking at the popularity of Japanese fuel vehicles in the international market, once Japan breaks through the shackles of lithium-sulfur batteries, Japanese new energy vehicles will inevitably shake China and the United States. position in the field of new energy vehicles.