Secondary battery

A secondary battery includes an electrode assembly including a negative electrode layer, a separation film and a positive electrode layer arranged in a first direction; and a case in which the electrode assembly is accommodated, the case including a first pressing portion which faces a first side su...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	Lee, Dooyeon, Odawara, Makoto
Format:	Patent
Sprache:	eng
Schlagworte:	BASIC ELECTRIC ELEMENTS ELECTRICITY PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
Online-Zugang:	Volltext bestellen
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Beschreibung
Zusammenfassung:	A secondary battery includes an electrode assembly including a negative electrode layer, a separation film and a positive electrode layer arranged in a first direction; and a case in which the electrode assembly is accommodated, the case including a first pressing portion which faces a first side surface of the electrode assembly accommodated in the case and applies a first pressing force to the electrode assembly along the first direction. The first pressing portion includes: a first surface facing the first side surface of the electrode assembly accommodated in the case; and a second surface opposite to the first surface and exposed outside the case, the second surface of the first pressing portion including a plurality of first curved grooves arranged along the first side surface of the electrode assembly accommodated in the case and lengthwise extending in a second direction crossing the first direction.