Perforierte Aluminiumfolie und Verfahren zur Herstellung davon
Anmelder: MITSUBISHI GAS CHEMICAL COMPANY, INC. 🇯🇵
Details
- Veröffentlichungs-Nr.
- EP4803658
- Anmeldetag
- 30. Oktober 2024
- Veröffentlichung
- 8. Mai 2025
- Rechtsraum
- EP
Abstract
The present invention relates to: a perforated aluminum foil suitably used for a current collector for a power storage device; and a method for manufacturing same. The present invention provides a method for manufacturing a perforated aluminum foil having a plurality of through-holes penetrating in the thickness direction thereof, the method comprising: an alkaline cleaning step for bringing a first aqueous composition containing 1-10 mass percent inclusive of an alkali into contact with the surface of an aluminum foil; and a through-hole forming step for forming the through-hole in the thickness direction of the aluminum foil by bringing a second aqueous composition containing 1-30 mass percent inclusive of halide ions into contact with the surface of the aluminum foil within 20 minutes after the alkaline cleaning step. Also provided is a perforated aluminum foil having a prescribed breaking strength, average pore diameter, and maximum pore diameter/average pore diameter.
Anmelder
- Firma
- MITSUBISHI GAS CHEMICAL COMPANY, INC.
- Land
- 🇯🇵 Japan
Japanisches Chemieunternehmen der Mitsubishi-Gruppe mit Fokus auf technische Kunststoffe, Methanol und Spezialchemikalien. Der Konzern beliefert unter anderem die Elektronik- und Verpackungsindustrie.
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