Enclosed-type secondary cell

Details Enclosed-type secondary cell Enclosed-type secondary cell

H - Electricity

01

M

H01M 2/00 (2006.01) H01M 2/04 (2006.01) H01M 2/34 (2006.01) H01M 10/04 (2006.01) H01M 2/12 (2006.01)

Patent

CA 2175174

An enclosed-type secondary cell comprises a safety valve (5) made of a metal plate which is deformed with an increase of an internal pressure of the secondary cell, a current interrupting means (6) energized when said safety valve (5) is deformed, an annular gasket (15) for holding an outer peripheral flange portion of the safety valve (5), and a disk (17) serving as a support for detaching a welded portion of a lead plate (17) and a safety valve convex portion (9) when the safety valve (5) is deformed. The annular gasket (15) includes a stepped portion (15e) within a bead-treatment area (21), and the disk (17) is fixed at its outer peripheral portion to the stepped portion (15e) of the annular gasket (15). This enclosed-type secondary cell has the current interrupting means which is energized when the safety valve (4) is deformed with an increase of the internal pressure within the enclosed-type secondary cell. Accordingly, the vacant space of the enclosed-type secondary cell is effectively utilized, and without decreasing a secondary cell capacity, the enclosed-type secondary cell is very strong against shock caused when it is dropped.

Affiliated with

Also associated with

Rating

Enclosed-type secondary cell does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Enclosed-type secondary cell, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Enclosed-type secondary cell will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1467734