| 摘要 |
A battery includes a spiral electrode assembly obtained by winding a positive electrode and a negative electrode with a separator between them, at least one of the electrodes having a connection that projects from the assembly and the separator having a part that projects from the assembly and which is interleaved between the edge of the electrodes and the connection. The separator has first and second layers formed by two halves of a common strip, the projecting part being localized in a central part of the strip.
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