Title:
STACKED SECONDARY CELL
Document Type and Number:
WIPO Patent Application WO/2011/145478
Kind Code:
A1
Abstract:
Disclosed is a stacked secondary cell which suppresses heat contraction of the opening of a bag-shape separator even in high-temperature environments, and prevents short circuits between the stacked electrodes. In the disclosed stacked secondary cell, positive electrodes (13) and negative electrodes each having a lead-out terminal (2) are alternately stacked with interposed separators (15). Of the positive electrodes (13) or the negative electrodes, at least one has two sheet-shape separators bonded thereto, and is housed in a separator bag (15), which is in the shape of a bag with an opening (3) in one part. Further, the lead-out terminal (2) of the electrode (13) housed in the separator bag (15) protrudes through the opening (3) to outside of the separator bag (15), and the outer circumference of the opening (3) is covered by an electric insulating layer (8).
Inventors:
DAIDOJI TAKAO (JP)
Application Number:
PCT/JP2011/060753
Publication Date:
November 24, 2011
Filing Date:
May 10, 2011
Export Citation:
Assignee:
NEC ENERGY DEVICES LTD (JP)
DAIDOJI TAKAO (JP)
DAIDOJI TAKAO (JP)
International Classes:
H01M10/04; H01M50/466; H01M50/528; H01M50/409
Foreign References:
| JP3934888B2 | 2007-06-20 | |||
| JPS574385Y2 | 1982-01-27 | |||
| US20090246612A1 | 2009-10-01 | |||
| JPS6031375Y2 | 1985-09-19 |
Attorney, Agent or Firm:
MIYAZAKI, Teruo et al. (JP)
Akio Miyazaki (JP)
Akio Miyazaki (JP)
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Claims: