Housing for galvanic element e.g. lithium ion cell of battery module used in vehicle e.g. ship, has wall that is provided with outer layer and inner layer of different metals with different corrosion resistance

摘要

The housing (10) has a wall (11) that is provided with the outer layer (12) and inner layer (13) of different metals with different corrosion resistance. The inner layer is formed with respect to electrolyte, and the outer layer is formed with respect to sea water resistant. The inner layer is made of aluminum, and the outer layer is made of sea water-fixed stainless steel. A metal layer is provided between inner layer and outer layer.