NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY

Title:

NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY

Document Type and Number:

Japanese Patent JPH09245759

Kind Code:

A

Abstract:

To provide a non-aqueous electrolyte secondary battery provided with a relief valve mechanism certainly break at a prescribed operating pressure and holding a good strength against fall-down shock.

This secondary battery is provided with a cylindrical exterior can 1 with its bottom, an electrode body 2 stored in the exterior can 1 and winding a separator and a negative pole 5 in the convolution shape, a non- aqueous electrolyte accommodated in the exterior can 1, a sealing nose body 9 provided at the upper end opening of the exterior can 1 and having an opened pressure release hole 8 is opened, and a thin plate 13 mounted on the sealing nose body 9 so as to occlude the hole 8 and having a formed cutout groove. The thin plate 1 is mounted so that the opening of the cutout groove 14 is bent toward inside the exterior can 1.

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Inventors:

SATO YUICHI
SATO YUJI
OSAKI TAKAHISA
KURATA YASUTAKE
SUZUKI JUN
ASAMI YOSHIAKI

Application Number:

JP5476496A

Publication Date:

September 19, 1997

Filing Date:

March 12, 1996

Export Citation:

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Assignee:

TOSHIBA CORP
TOSHIBA BATTERY

International Classes:

H01M2/12; H01M10/04; H01M10/05; H01M10/0566; H01M10/0587; (IPC1-7): H01M2/12; H01M10/04; H01M10/40

Attorney, Agent or Firm:

Takehiko Suzue

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