| 摘要 |
PROBLEM TO BE SOLVED: To provide a nonaqueous electrolyte battery wherein generation of a corrosion hole by corrosion of a sealed body or a sheath can is suppressed, and generation of the reaction gas of a negative electrode and water and generation of deterioration of the battery by intrusion of water into the battery can be prevented even if the battery is immersed in water. SOLUTION: In the nonaqueous electrolyte battery of a structure having an electrode body 7 equipped with a positive electrode, the negative electrode, a nonaqueous electrolyte and a separator, wherein the electrode body 7 is arranged in a bottomed cylindrical sheath can 8 composed of aluminum or an aluminum alloy, and wherein at the sealed body 6, a sealed body 6 is welded at an opening part of the sheath can 8 and a negative electrode terminal cap 10 of the polarity different from that of the sheath can 8 is installed in the electrically insulated state by the sealed body 6 and an insulating member, a space between a welded part 1 and/or the insulated member and the sealed body 6 is covered with a protective film 2 in order to prevent corrosion of the welded part 1, in case the negative electrode terminal cap 10 and the sheath can 8 or the sealed body 6 are liquid-connected. COPYRIGHT: (C)2003,JPO |
