Feuille de batterie H18

La structure de base d'une batterie au lithium comprend une électrode positive, une électrode négative, un électrolyte, et un séparateur. Les batteries au lithium ont quatre matériaux clés: un papier d'aluminium, une feuille de cuivre, un séparateur au milieu, Et les autres sont des électrolytes.

La batterie en aluminium Foil fait référence à la feuille d'aluminium utilisée pour le matériau d'électrode positif de la batterie au lithium, or the aluminum foil for lithium battery current collector, which belongs to the finishing product in the aluminum foil product series. Maintenant, the commonly used alloy components of feuille de batterie h18 mainstream products are pure aluminum 1000 séries, 1060, 1070, 1080 et 1235, thickness 0.010~0.020mm, temper is H18. en outre, there are many varieties of aluminum foil products used in other parts of lithium batteries, such as aluminum-plastic film for battery soft packs, tabs, and modified carbon-coated foils, electro-erosion foils and other products. Donc, aluminum foil plays a crucial role in the development of new energy battery.

Aluminum h18 battery foil for lithium batteries has high requirements on alloy composition, platitude, épaisseur, dyne value, propreté, trous d'épingle, and performance. Maintenant, domestic aluminum foil products used in the field of low-end batteries are gradually becoming saturated, while aluminum foil products that meet high-end power batteries are in short supply. The application characteristics of lithium batteries and the high quality indicators of feuille d'aluminium de batterie require the aluminum processing industry to take corresponding measures to produce battery aluminum foil products with excellent quality and customer satisfaction.

Advantages of aluminum feuille de batterie h18 in the field of lithium-ion batteries are:

1, Extend the service life of lithium-ion batteries, because the special aluminum battery foil has better physical properties, which significantly improves the cycle function of lithium-ion batteries.

2, To improve the consistency of lithium-ion batteries, the use of special battery aluminum foil can not only reduce internal resistance, mais améliore également la cohérence de la résistance interne.

3, Improve the rate discharge function of the battery. After the h18 aluminum foil is selected, the rate function of the lithium-ion battery is significantly improved, surtout dans le cas d'un taux élevé (supérieur à 3c), the rate discharge capacity is more than 15%, perhaps at the same rate. In cases, battery aluminum foils can travel the energy density of lithium-ion batteries.