BATTERY
Provided is a technique that can obtain a wound electrode body simply and conveniently. One aspect of a battery herein disclosed is provided with a wound electrode body in which a strip-shaped positive electrode and a strip-shaped negative electrode are wound around in a predetermined winding direct...
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| Hauptverfasser: | , , |
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| Format: | Patent |
| Sprache: | eng |
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| Zusammenfassung: | Provided is a technique that can obtain a wound electrode body simply and conveniently. One aspect of a battery herein disclosed is provided with a wound electrode body in which a strip-shaped positive electrode and a strip-shaped negative electrode are wound around in a predetermined winding direction around a winding axis via a strip-shaped separator. The second separator includes a region positioned outward from a winding terminal edge of the first separator; the second separator includes an extending portion extending beyond the winding terminal edge of the first separator in the winding direction; at least a part of the extending portion and a region positioned inward from the extending portion in the second separator are bonded together with a second adhesive layer existed on a surface of the second separator; and a heat-resistant layer is existed on an outermost surface of the wound electrode body. |
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