LITHIUM ION SECONDARY BATTERY

A lithium ion secondary battery in which a winding type electrode group including a positive electrode having a positive electrode mix layer containing a lithium metal oxide, a negative electrode having a negative mix layer that stores and discharges lithium ions, and separators arranged on inner an...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: NANAUMI TAKESHI, SUZUKI KATSUNORI, MITANI TAKAYUKI, SHINOHARA HIDEKI
Format: Patent
Sprache:eng
Schlagworte:
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Beschreibung
Zusammenfassung:A lithium ion secondary battery in which a winding type electrode group including a positive electrode having a positive electrode mix layer containing a lithium metal oxide, a negative electrode having a negative mix layer that stores and discharges lithium ions, and separators arranged on inner and outer peripheries of the positive electrode and the negative electrode is housed, and a nonaqueous electrolyte is poured, within a battery container, the positive electrode has one side edge along a longitudinal direction thereof exposed as a positive electrode mix unprocessed portion, and a positive electrode mix layer coated in the other area on both surfaces of a metal foil made of an aluminum alloy.