Technical Knowledge

If we say that the dilemma of lead-acid batteries flowing to small workshops is still there, then lithium-ion batteries, which are about to reach the peak of scrapping, will not escape the dilemma, and the situation is even worse. It is understood that electric vehicles may be scrapped after 5 to 7 years of use, and a large amount of scrap is expected to begin in 2018. According to the forecast of my country Automotive Technology Research Center, by 2020, my country's cumulative scrapped power lithium batteries

At present, the two important directions of power lithium battery recycling in my country are cascade utilization and dismantling recycling. When the power lithium battery used in cascade is no longer usable as a battery, its value as a material still exists, so the cascade utilization is down. The battery will eventually be dismantled and recycled. It can be said that how many power lithium batteries are currently produced, and how many waste power lithium batteries will be dismantled in the future. As the termina

The safety of new energy vehicles has always received great attention, and everyone's concerns are also related to batteries, including fire and explosion, leakage, wading, radiation, and so on. In fact, car companies will take these issues into account when developing new energy vehicles, and will deal with them or make concessions in some respects for safety. Here, it is important to understand the cooling system of the power lithium battery. The quality of the cooling performance will directly affect the

Many people know little about lithium-ion batteries, and the difference between fuel-powered lithium-ion batteries and lithium-ion batteries is not very clear. How to decide in the selection process? The following is an analysis of these two power sources. A fuel-powered lithium battery is a power generation device that directly converts the chemical energy and oxidant in the fuel into electrical energy. It involves theories of chemical thermodynamics, electrochemistry, electrocatalysis, material science, power

Lead-acid batteries are generally composed of 3 or 6 single-cell batteries connected in series, consisting of plates, separators, electrolytes, shells, poles and filler plugs (no maintenance-free batteries). Lead-acid batteries 1. Plates of lead-acid batteries The pole plate is divided into positive plate and negative plate, both of which are composed of grid frame and active material. The purpose of the grid. The ladder has a secondary purpose, which will accelerate the precipitation of hydrogen and

1. Electromotive force The electromotive force is the difference between the balance electrode potentials of the two electrodes. Taking lead-acid batteries as an example, E=Ф+0-Ф-0+RT/F*In(αH2SO4/αH2O). Among them: E—electromotive force Ф+0—positive standard electrode potential, its value is 1.690 Ф-0—negative standard electrode potential, its value is -0.356 R - universal gas constant, its value is 8.314 T - temperature, related to the temperature of the battery F

A subsidiary of LG Group is investing heavily in a U.S. R&D subsidiary to develop the fuel cell business, developing "solid oxide fuel cells," which LG says are third-generation fuel cells. It looks like LG Group is poised to continue pouring R&D dollars into new fuel cells, which it did last year and continue this year. Industry insiders pointed out on the 20th that LG Group subsidiaries LG Electronics, LG Chem, and LGCNS recently invested $38.4 million in LGPureCellSystems, a subsidiary of LG

The development of high-performance power batteries is one of the important measures to promote electric vehicles. Recently, the reporter learned from the second quarter regular press conference of the Chinese Academy of Sciences that the energy density of a variety of power battery cells developed by the Chinese Academy of Sciences has reached more than 300Wh/kg, ranking the world's advanced level; my country's power lithium batteries have entered the core technology. In the stage of large-scale applicatio

1. Lithium batteries are usually divided into two categories according to internal materials: Lithium metal battery: Lithium metal battery generally uses manganese dioxide as the positive electrode material, metallic lithium or its alloy metal as the negative electrode material, and uses a non-aqueous electrolyte solution. Lithium-ion batteries: Lithium-ion batteries generally use lithium alloy metal oxides as positive electrode materials, graphite as negative electrode materials, and use non-aqueous electrol