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Patent Searching and Data


Title:
RECTANGULAR SECONDARY CELL
Document Type and Number:
WIPO Patent Application WO/2016/076109
Kind Code:
A1
Abstract:
A secondary cell is obtained that provides excellent support for the weight of a winding group. In this rectangular secondary cell 100, a positive electrode 34 has a plurality of projecting parts 34c on one long-side end part of a positive-electrode metal foil, and a negative electrode 32 has a plurality of projecting parts 32c on one long-side end part of a negative-electrode metal foil. The plurality of projecting parts 34c on the positive electrode 34 and the plurality of projecting parts 32c on the negative electrode 32 are disposed in mutually separated positions on one and the other sides, as viewed in the thickness direction of a winding group 3, at the end face on one side, as viewed in the direction of the winding axis of the winding group 3, and in positions shifted toward one and the other curved part sides of the winding group 3; and the external sides of the projecting parts, as viewed in the thickness direction of the winding group 3, are formed so as to be wider than the center sides in the thickness direction.

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Inventors:
SOHMA Takahiro (2520, Takaba, Hitachinaka-sh, Ibaraki 03, 〒3128503, JP)
KASHINO Hiroshi (2520, Takaba, Hitachinaka-sh, Ibaraki 03, 〒3128503, JP)
INOUE Kosuke (2520, Takaba, Hitachinaka-sh, Ibaraki 03, 〒3128503, JP)
Application Number:
JP2015/080309
Publication Date:
May 19, 2016
Filing Date:
October 28, 2015
Export Citation:
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Assignee:
HITACHI AUTOMOTIVE SYSTEMS, LTD. (2520, Takaba Hitachinaka-sh, Ibaraki 03, 〒3128503, JP)
International Classes:
H01M10/04; H01M2/02; H01M2/04; H01M2/06; H01M2/26; H01M10/0587
Foreign References:
JP2014032814A2014-02-20
JP2014182993A2014-09-29
JP3187576U2013-12-05
Attorney, Agent or Firm:
INOUE Manabu et al. (6-1, Marunouchi 1-chome, Chiyoda-k, Tokyo 20, 〒1008220, JP)
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