Aluminum foil for lithium ion battery flexible packaging aluminum plastic film and preparation method thereof

• Main Authors: GU YUEQIAN, NIE CUNZHU, HUANG YUANWEI, TANG JINGSONG, CHEN GUOZHEN, CHEN RENZONG, GAO YONGJIN, ZHANG TENGFEI
• Format: Patent
• Language: Chinese; English
• Published: 03.05.2019
• Subjects: ALLOYS; BASIC ELECTRIC ELEMENTS; CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS ANDNON-FERROUS ALLOYS; CHEMISTRY; ELECTRICITY; FERROUS OR NON-FERROUS ALLOYS; LAYERED PRODUCTS; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM; METALLURGY; PERFORMING OPERATIONS; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY; TRANSPORTING; TREATMENT OF ALLOYS OR NON-FERROUS METALS

The invention relates to an aluminum foil for a lithium ion battery flexible packaging aluminum plastic film which is characterized in that the aluminum foil comprises a core layer and a protective layer which are combined with each other; the core layer comprises the following components by weight: 0 <= Si <= 1.0 %, 0.1 <= Fe <= 1.8%, 0 <= Mn <= 1.8%, and balance of Al; the protective layer comprises the following components by weight: 0 <= Mn <= 1.0%, 0. 1 <= Si <= 1.0%, 0.1 <= Fe <= 1.8%, 0.1 <= Zn <= 6.0%, and balance of Al. 本发明涉及一种锂离子电池软包装铝塑膜用铝箔，其特征在于，由相互复合的芯层和保护层组成；所述的芯层包括如下重量百分比的组分：0≤Si≤1.0％、0.1≤Fe≤1.8％、0≤Mn≤1.8％，其余为Al；所述的保护层包括如下重量百分比的组分：0≤Mn≤1.0％、0.1≤Si≤1.0％、0.1≤Fe≤1.8％、0.1≤Zn≤6.0％，其余为Al。