METHOD OF MANUFACTURING NONAQUEOUS ELECTROLYTE SECONDARY BATTERY HAVING POLYMER ELECTROLYTE

PROBLEM TO BE SOLVED: To provide a method of manufacturing a nonaqueous electrolyte secondary battery of high voltage and high energy density while preventing microscopic short-circuiting in the battery. SOLUTION: The method includes a process by which an electrode sheet comprising a current-collect...

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Bibliographische Detailangaben
Hauptverfasser:	IMAI KOICHI, TAGAWA KAZUNORI, MATSUEDA NAOTO, KUWABARA YOSHIHIRO, SHICHIMOTO KATSUYA, USUMI TAKESHI
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 method of manufacturing a nonaqueous electrolyte secondary battery of high voltage and high energy density while preventing microscopic short-circuiting in the battery. SOLUTION: The method includes a process by which an electrode sheet comprising a current-collector strip with mix layers provided on both sides thereof is wound around an impregnating roller provided within a polymer impregnating vessel to impregnate the mix layers of the electrode sheet with a polymer solution. The polymer solution is caused to overflow from an outflow port provided in the impregnating vessel and is circulated into the polymer impregnating vessel after passing through a filter pump.