3.7v 18650 battery 4000mah Manufacturers

Against the background of increasingly depleted oil resources and environmental pollution, electric vehicles have entered a period of rapid development. However, due to the high cost, short battery cycle life, short range and other problems of electric vehicles, further large-scale promotion of electric vehicles is also restricted.

The Ministry of Industry and Information Technology of the People's Republic of China has revised the Regulatory Conditions for the Lithium Ion Battery Industry and the Interim Measures for the Administration of Regulatory Announcements for the Lithium Ion Battery Industry, forming the Regulatory Conditions for the Lithium Ion Battery Industry (2018 version) and the Interim Measures for the Administration of Regulatory Announcements for the Lithium Ion Battery Industry (2018 version), which will be formally implemented from February 15, 2019. This method greatly strengthens the management of the lithium-ion battery industry, guides the transformation and upgrading of the industry, vigorously cultivates strategic emerging industries, and promotes the healthy development of the lithium-ion battery industry. There is no doubt that the new national standard for electric vehicles has had a significant impact on lead-acid batteries

What are the characteristics of lithium iron phosphate battery? 1. High energy density It is reported that the energy density of the square aluminum shell lithium iron phosphate battery unit produced in mass in 2018 is about 160Wh/kg. In 2019, some excellent battery enterprises can reach the level of about 175-180Wh/kg. Some powerful enterprises can increase the overlapping process and capacity or reach 185Wh/kg.

Lithium iron phosphate battery is a lithium ion battery with lithium iron phosphate (LiFePO4) as the cathode material and carbon as the cathode material. The rated voltage of the single battery is 3.2V, and the charging cut-off voltage is 3.6V~3.65V.

Is there any special reason for the use of aluminum foil and copper foil for the current collection of positive and negative electrodes? Is there any problem with using it in reverse?