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TAB LEAD MATERIAL FOR POWER STORAGE DEVICE AND MANUFACTURING METHOD THEREOF, TAB LEAD FOR POWER STORAGE DEVICE USING TAB LEAD MATERIAL, AND POWER STORAGE DEVICE USING TAB LEAD
TAB LEAD MATERIAL FOR POWER STORAGE DEVICE AND MANUFACTURING METHOD THEREOF, TAB LEAD FOR POWER STORAGE DEVICE USING TAB LEAD MATERIAL, AND POWER STORAGE DEVICE USING TAB LEAD
PROBLEM TO BE SOLVED: To provide a tab lead material and a tab lead for power storage device excellent in anticorrosion characteristics and capable of resolving environmental problems, and improving adhesion to a sealant, and to provide a power storage device excellent in weldability to an electrode, and in long term reliability.SOLUTION: In an aluminum material including an oxide film of two layer structure on both surfaces, the oxide film consists of a porous oxide film layer of 20-500 nm thick formed on the surface side, and a barrier oxide film layer of 7-27 nm thick formed on the aluminum basis material side, small holes of 5-30 nm diameter are formed in the porous oxide film layer, and the ratio of the maximum Ca intensity (I) of a porous oxide film layer and the maximum Ca intensity (I) of the aluminum basis material, measured by glow discharge optical emission spectrometry, satisfies 0.5I/I20 in a tab lead material for power storage device. A tab lead for power storage device using the tab lead material, and a power storage device using the tab lead are also provided.SELECTED DRAWING: Figure 1
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机译：解决的问题：提供耐腐蚀特性优异且能够解决环境问题并提高与密封剂的密合性的用于蓄电装置的极耳材料和极耳，并提供对电极的可焊性极佳的蓄电装置。解决方案：在一个铝质材料中，两个表面均具有两层结构的氧化膜，该氧化膜由形成在表面侧的厚度为20-500 nm的多孔氧化膜层和一个阻挡层组成在铝基材料侧上形成的厚度为7-27nm的氧化膜层，在多孔氧化膜层中形成直径为5-30nm的小孔，并且多孔氧化膜的最大Ca强度之比（I）通过辉光放电光发射光谱法测量的铝基材料的层厚度和最大Ca强度（I）满足用于蓄电装置的片状引线材料中的0.5 ＜I / I ＜20。还提供了使用接线片引线材料的用于蓄电装置的接线片引线和使用接线片引线的蓄电装置。选图：图1
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