Battery Aluminum Foil Factory

Battery aluminum foil factory supply aluminium foil for battery with alloy grade 1080, 1070, 1235 and 1060 with temper H18. The consistency of battery aluminum foil thickness and areal density is controlled within ±2%, which is significantly lower than the tolerance range of ordinary aluminum foil of ±5%, which greatly improves the consistency of the battery. The surface tension of the battery aluminium foil is greater than 32 dyne, and the surface tension of the aluminium foil is generally 29 dyne, which is conducive to the improvement of the bonding performance of the pole piece. The tensile strength of aluminium foil for battery is 200-210Mpa to ensure the processing performance. The elongation rate of aluminum foil is 1.5%-4.0%, which guarantees the mechanical properties.

Unlike traditional aluminum foil for food packaging, air conditioning, printing and other fields, aluminum foil for lithium battery require higher performance, especially for power batteries. Among the various product technical characteristics of aluminum foil, cleanliness (debris, dust, etc. are one of the factors that cause battery explosion), plate shape control (uneven coating, affecting life), surface wetting tension (affecting uniform coating And compaction), pinhole control (more pinholes can easily cause strip breakage), and mechanical properties (high tensile strength, high elongation) are the five important factors that affect the performance of battery aluminum foil.

One of the difficulties in the production of battery aluminum foil factory is that users not only require the high purity of pure aluminum alloys, but also require high mechanical properties, especially the high requirements for tensile strength, which is a big challenge for battery aluminium foil supplier technicians. After continuous R&D and testing, battery aluminum foil factory – Haomei Aluminum have now stably produced high-strength battery aluminum foil products that meet user requirements. The significant advantages of aluminum foil in the field of lithium-ion batteries:

1, Significantly prolong the service life of lithium-ion batteries. Aluminum foil has good physical properties, which significantly improves the cycle performance of the battery.

2, Aluminum foil can not only reduce internal resistance, but also improve the consistency of internal resistance.

3, After the special aluminum foil is used, the rate performance of the battery is significantly improved, especially in the case of a large rate (greater than 3C), the rate discharge capacity is increased by more than 15%, or under the same rate, the special aluminum foil can increase the energy of the battery density.