Application of Aluminium Foil in Power Lithium Battery

As a new generation of green high-energy rechargeable batteries, lithium-ion batteries have outstanding advantages such as high voltage, high energy density, good cycle performance, low self-discharge, and no memory effect. It is considered to be a high-tech industry of great significance to the national economy and people's lives in the 21st century.

Application of aluminium foil in new energy vehicles

In China's "Twelfth Five-Year Plan", new energy vehicles are one of the seven emerging industries and have become an important breakthrough for the country to revitalize the economy and transform the industrial structure. The development of new energy vehicles is an important part of the low-carbon economy and plays an important role in alleviating the contradiction between energy supply and demand, improving the environment, and promoting sustainable economic development.

The power battery for electric vehicles is a lithium battery: the positive electrode is lithium iron phosphate (lithium cobalt oxide LiCoO2, or lithium manganese oxide LiMn2O4 or ternary compound Li (Nico) O2) coated on aluminium foil, but lithium iron phosphate is the best. The negative electrode is copper foil coated with graphite or lithium titanate. There is a separator between the positive and negative foils, which are wound together. Put the wound positive and negative sheets (including the diaphragm) into the battery case together, inject the electrolyte, and then vacuum package to complete the production of a single battery.

The power source of electric vehicles is a lithium battery, which is a mobile energy source composed of anode, cathode and electrolyte. During charging, ions flow out from the positive electrode and flow to the negative electrode through the electrolyte. The opposite electrochemical reaction occurs between the positive electrode and the negative electrode during work or discharge, and the voltage drop generated drives the external load to make the car run.

New energy vehicles are one of the industries that best reflect a country's scientific and technological development level, independent innovation capabilities and international competitiveness. It promotes the transformation of my country's transportation energy, through energy diversification, power electrification, and emission cleanliness, so as to realize my country’s transformation from a major automobile producer to The transformation of a powerful automobile technology nation. In the draft "Development Plan for Automobile and New Energy Automobile Industry" (2011-2020) issued by my country, the central government will invest hundreds of billions of yuan to support the development and promotion of core technologies for energy-saving and new energy vehicles, making my country a global The largest producer of new energy vehicles makes China keep pace with developed countries in terms of new energy vehicle production technology. China has made electric vehicles the top priority in the development of new energy vehicles and is the main direction of development of new energy vehicles.

The above information is provided by the aluminium foil supplier.