Industry Knowledge

Formation is an important process in the production process of lithium batteries. During chemical formation, a passivation layer is formed on the surface of the negative electrode, that is, a solid electrolyte interface film (SEI film). The quality of the SEI film affects the battery's cycle life, stability, The electrochemical properties such as self-discharge and safety meet the requirements of "maintenance-free" sealing of secondary batteries. However, the SEI films formed by different chemical pro

In the field of consumer electronics, battery capacity and charging speed are eternal topics, and many manufacturers use fast charging technology and battery capacity as gimmicks for their products. At present, lithium batteries are the most used in this field. Lithium batteries were first commercialized in 1991, and later became the standard configuration of electronic equipment. But many people think the technology has reached its limit and want to find alternative sources, so graphene batteries have entered p

There are some differences in the production process of lithium batteries depending on different lithium battery manufacturers, but because of the same principle, the main production processes of lithium batteries are basically the same, generally including: batching, coating, rolling, cutting, slitting, Welding tabs, winding, packaging, baking, liquid injection, formation, forming, volumetric testing and other processes. Lithium battery occupies a place in people's daily life, but where does it come from? W

Integrating nanotechnology into the lithium battery electrode material system to develop high energy density lithium battery materials for electric vehicles; the wear-resistant coating technology won the second prize of the National Science and Technology Progress Award; the development of environmentally friendly permanent polymer flame retardants... Reporter yesterday It was learned from Shandong University of Science and Technology that Shandong University of Science and Technology attaches great importance to t

The following methods are currently important to achieve equal charging of each single battery in a series battery pack. 1. Attach a parallel equalizing circuit to each single battery of the battery pack to achieve the purpose of shunt. In this mode, when a battery reaches full charge first, the equalization device can prevent it from overcharging and convert the excess energy into heat energy, continuing to charge the battery that is not fully charged. This method is simple, but it will cause energy loss and is

For Chinese power battery manufacturers, investing in and building factories in the hinterland of Europe is becoming more and more fashionable, and it is also a symbol of strength. Up to now, only the three companies of CATL, Funeng Technology, and Honeycomb Energy have deployed more than 130GWh of battery capacity in Europe, which is about twice the current total installed capacity of power batteries in China. Among them, CATL is the first Chinese battery company to set up factories in Europe. Its battery facto

The power battery is the power source that provides the power source for the tool, and mostly refers to the battery that provides power for electric vehicles, electric trains, electric bicycles, and golf carts. It differs mainly from starter batteries used for car engine starting. Valve-sealed lead-acid batteries, open tubular lead-acid batteries and lithium iron phosphate batteries are mostly used. Power battery structure 1. Battery cover 2. The positive electrode --- the active material is lithium cobalt

Energy and environment are two serious problems that human beings must face in the 21st century. The development of new energy and clean and renewable energy is one of the most decisive technological fields in the future world economy. The lithium-ion battery has developed rapidly since its inception, because it just meets the requirements of the rapid development of mobile communications and notebook computers for miniaturization, light weight, long working time, long life, no memory effect and no pollution to the

According to the Korea Institute of Science and Technology (KIST), the energy fusion research group of the institute has successfully developed a new type of nanocomposite (tin fluoride SnF2) and carbon-based anode materials for sodium-ion batteries. The findings were published in the journal NanoEnergy in the field of nanotechnology. By adjusting the manufacturing environment, the research group made a sealed nanocomposite with a thicker carbon layer, mixed SnF2 and highly conductive acetylene under inert condi