SECONDARY BATTERY HAVING ANTI-SCATTERING MECHANISM

A housing for containing electrode assemblies and an electrolyte includes a cover 18 having a pair of long-side ends 18e. Peripheral thinned portions 11 are formed by cutting the inner face of a top plate 18a near the long-side ends 18e in parallel with the long-side ends 18e. A central thinned port...

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Bibliographische Detailangaben
Hauptverfasser: HATA, TAKAYUKI, OOTA, TAKAYUKI, GOTOU, HIROAKI, MAEDA, AKIHIRO, NISHINO, HAJIME, TANO, EIJI, ODA, KEIZO, HIRAMATSU, AKITOSHI, SHIMADA, MIKINARI, YAMAGUCHI, AKIHIKO
Format: Patent
Sprache:eng ; fre ; ger
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Zusammenfassung:A housing for containing electrode assemblies and an electrolyte includes a cover 18 having a pair of long-side ends 18e. Peripheral thinned portions 11 are formed by cutting the inner face of a top plate 18a near the long-side ends 18e in parallel with the long-side ends 18e. A central thinned portion 15 is formed by cutting the central part of the outer face of the top plate 18a in parallel with the long-side ends 18e. This facilitates the rupture of a housing 1 due to an increase of the inner pressure, while ensuring the strength of the housing 1 to withstand external pressure.