| 摘要 |
<p>A lithium secondary battery, comprising: a cylindrical battery case provided with electrode caps at both end portions thereof; and an electrode body impregnated with a nonaqueous electrode solution and contained in the battery case and including a positive electrode, a negative electrode, and a separator, the positive electrode and the negative electrode plate being wound or laminated through the separator; wherein, tip portions of said battery case and outer periphery portions of said electrode caps are brought into joining with squeezing processing, caulking, and welding.
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