LITHIUM SECONDARY BATTERY AND ITS MANUFACTURING METHOD

PROBLEM TO BE SOLVED: To provide a lithium secondary battery capable of sufficiently restraining reduction of a yield caused by bending and internal short-circuit of an electrode body without using a polymer electrolyte, and its manufacturing method. SOLUTION: In the lithium secondary battery in whi...

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Bibliographische Detailangaben
Hauptverfasser:	JINNO MARUO, SUNANO TAIZO, TAKANO YASUO
Format:	Patent
Sprache:	eng
Schlagworte:	BASIC ELECTRIC ELEMENTS ELECTRICITY PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a lithium secondary battery capable of sufficiently restraining reduction of a yield caused by bending and internal short-circuit of an electrode body without using a polymer electrolyte, and its manufacturing method. SOLUTION: In the lithium secondary battery in which the electrode body made by winding a laminated body including a positive electrode, a negative electrode, and a separator in a spiral shape is housed in a battery container 14, a space member 6 is arranged between the positive electrode and the negative electrode so that a gap layer with a thickness larger than an increasing amount of the thickness of the electrode involved in battery charging is formed, and positions of the positive electrode and the negative electrode in this state are fixed by a support plate 10. COPYRIGHT: (C)2009,JPO&INPIT