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According to foreign media reports, researchers at Japan's National Institute for Materials Science (NIMS) claim that nanoporous, amorphous silicon film anodes exhibit excellent cycle stability and extremely high lithium-ion storage capacity: in After 100 times of charge and discharge, it is 2962mAh/g (2.19mAh/cm2). The NIMS team combined nanoporous amorphous silicon films with inorganic solid electrolytes to address the problem of capacity fading. The nanoporous structure can accommodate the volume change o

When a new car is launched, of course I am talking about electric vehicles, there are often such introductions: "Quick charge, 80% charge in half an hour, 200 kilometers of battery life, completely solve your mileage anxiety!" Fast charging, commercial vehicles are used to improve equipment usage Efficiency, which passenger cars use to address range anxiety, is constantly approaching the time to add a tank of gas. There is a tendency to become standard. Today, let’s dig and dig the fast charging met

Today's Battery Magazine - China Battery Alliance News On April 24, Dow's technical announcement disclosed that it plans to acquire the remaining shares of its holding subsidiaries, Jiana Energy and Qingdao Haoxin, for a total transaction price of 1.503 billion yuan. The announcement shows that Jiana Energy, as an important domestic cobalt product supplier, has been focusing on the production of cobalt salt products through the hydrometallurgical process for more than ten years since its establishment, a

At the "2018 Yokohama People and Vehicles Technology Exhibition" that ended not long ago, Toshiba Materials exhibited a lithium-ion battery that uses purple tungsten oxide as the negative electrode material, which can realize ultra-fast charging. The applications of this kind of battery range from automobiles, micro/mild hybrid electric trains, elevators, uninterruptible power supply UPS to high current power supplies, with obvious application advantages and wide coverage. As a pioneer in the field of lit

On June 5, Tesla's global sales director Ren Yuxiang disclosed the company's plan to build the company's first factory outside the United States in Shanghai, China. Tesla CEO Elon Musk also said at the conference that he is closely related to Tesla's cooperation in the United States. Unlike the factory, the new one will produce both batteries and assemble vehicles. Affected by this, the stock prices of Tesla-related companies immediately launched an upward offensive. On the same day, the lithium

Recently, according to South Korean media reports, the research team of Samsung Electronics General Technology Institute has successfully developed a new battery material "graphene ball", which is 45% higher than the charging capacity of existing lithium-ion batteries, and the charging speed is increased by more than 5 times. The researchers found that after adding silica to the high-strength, high-conductivity graphene material, graphene can be synthesized in large quantities, and the synthesized grap

It is reported that graphene has a low light absorption rate. Recently, researchers at the University of Illinois at Urbana-Champaign have confirmed through experiments that changing the stress on the surface of graphene can produce a "wrinkled" structure on the surface and increase the areal density, which can improve graphite. The light absorption of graphene is of great significance for the application of graphene in the field of optoelectronics. Of course, this research method is not limited to gra

1. Overview of the technical route of Japanese lithium battery company 2. Details of the technical route of each company 1 Panasonic-Sanyo Electric Positive electrode material Research and development of lithium manganate doped with nickel, aluminum and other elements of solid solution cathode material, as the cathode material of the battery. At present, the developed cathode materials include nickel-cobalt lithium manganate, nickel-cobalt lithium aluminate, etc., and have been applied on a large scale.

Electric vehicles will become an important green means of transportation in the future, and there is an urgent need to develop new high-capacity, high-stability and high-safety lithium batteries. Scientists are also constantly trying various methods to improve the performance of lithium batteries, among which nanometerization is a common method to improve the electrochemical performance of materials, especially for low-conductivity materials such as lithium iron phosphate, which have a significant improvement effec