Technical Knowledge

Researchers from New York University, the State University of New York at Stony Brook and the University of Cambridge have developed an internal detection technology for lithium-ion batteries based on nuclear magnetic resonance imaging (MRI), which can provide diagnostic services for the internal operation of batteries and improve battery performance and safety. . Relevant research results were published in "Natural Materials Science". When the lithium-ion battery is charged, the lithium fiber will att

Silicon is mixed with various forms of carbon, including carbon fibers and graphite, which can provide a pathway for electrons to travel through the material, bridging the gaps created by silicon cracks. The battery pack costs more than $10,000, and that's the biggest reason that makes an electric car more expensive than a regular gas-powered car. Envia could solve some key problems and cut the cost of electric vehicle batteries in half. Source: MIT Tech Startups Envia, a startup with funding from General

As my country's oil price officially enters the era of 8 yuan, the voice of popularizing new energy vehicles is getting louder and louder. Faced with the people's high expectations, the government announced plans to actively carry out new energy vehicle demonstrations in the public service areas of large and medium-sized cities. energy supply. In terms of industry, many Chinese vehicle manufacturing companies have also begun to promote their electric vehicles, and new energy auto exhibitions and power lithi

Functions of power lithium-ion battery thermal management system Too high or too low temperature will directly affect the service life and performance of the power lithium-ion battery, and may lead to safety problems of the battery system, and the long-term uneven distribution of the temperature field in the battery box will cause various battery modules, unit The performance of the body is not balanced, therefore, the battery thermal management system is necessary for the electric vehicle power lithium-ion batt

The mining and production of lithium-ion battery raw material resources mainly include lithium-ion resources, cobalt resources and graphite. Energy density, cost, safety, thermal stability, and cycle life are the five key indicators of power lithium-ion batteries. Ternary materials, potassium manganate and lithium iron phosphate have no absolute advantages in these five aspects. Lead to the difference in the route of power lithium-ion battery electrode materials. The design of a battery starts with the select

1. The lithium-ion battery of the self-balancing car should be charged with a special charger. The charging of each charger is different. The charger cannot be replaced at will, otherwise it will easily cause damage to the battery. 2. Cultivate the habit of charging more every day. Although a single charge can be used for several hours, or even longer, it is still necessary to develop the habit of charging every day, so that the battery is in a shallow circulation state, which is very beneficial to extend the se

Stirring, coating, winding, and testing are important processing techniques for lithium batteries. 1. Slurry stirring is an important part of lithium battery equipment. Lithium battery positive electrode slurry is composed of binder, conductive agent, positive electrode material, etc., negative electrode slurry is composed of adhesive, graphite carbon powder, etc.; positive and negative electrode slurry The preparation of the slurry includes the mutual mixing, dissolution, and dispersion of liquid and liquid, li

The circuit has the functions of overcharge protection, overdischarge protection, overcurrent protection and short circuit protection. Its working principle is broken down as follows: normal status In the normal state, the "CO" and "DO" pins of N1 in the circuit both output high voltage, the two MOSFETs are in the conduction state, and the battery can be charged and discharged freely, because the conduction resistance of the MOSFET is very small, usually less than 30 milliohms, so its on-r

Europe does not intend to throw the recycling battery processing technology alone to Asia, but intends to establish its own processing chain. As part of the Si-DRIVE project, a consortium of research institutes and industrial companies is developing the corresponding technology. The Technical Academy in Karlsruhe and the Helmholz Institute are in this context developing new battery concepts that will be sustainable and based entirely on ecological and economical considerations of a non-critical material.(Lithium -