BATTERY PACK

A battery pack disclosed herein includes a wound electrode body, a battery case, and a pressing member. The battery case includes a pair of first side walls. The wound electrode body includes a flat region and a pair of curved regions and is disposed inside the battery case in a manner that the flat...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser:	ONIZUKA, Hiroshi
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:	A battery pack disclosed herein includes a wound electrode body, a battery case, and a pressing member. The battery case includes a pair of first side walls. The wound electrode body includes a flat region and a pair of curved regions and is disposed inside the battery case in a manner that the flat region faces the first side wall. In at least one of the pair of first side walls, 80% or more of the entire parts facing the pair of curved regions including border parts with the flat region is pressed in a band shape by the pressing member, 20 to 50% of the entire part facing the flat region is pressed by the pressing member, and a space extending from a center part to an end part in a winding axis direction is formed between the part facing the flat region and the pressing member.