Title:
2次電池およびその組電池および2次電池を搭載する車両および電池搭載機器
Document Type and Number:
Japanese Patent JP4998451
Kind Code:
B2
Abstract:
A secondary battery comprises a flat wound electrode body, a flat-type hard case housing the wound electrode body, and a film sandwiched between them. The film is formed with thick portions each of which is located at a boundary region between a flat portion and a curved portion of the surface of the wound electrode body. When a plurality of the secondary batteries are bound, therefore, load is applied widely on almost the entire wound electrode body, thereby enabling exertion of sufficient generation capability. Thus, a secondary battery with improved battery performance is provided in which load is sufficiently applied on an electrode body. The secondary battery can also be used as a battery assembly, a battery to be mounted on a vehicle, and a battery to be mounted on a battery mounting device.
Inventors:
Yoshiyuki Maruyama
Yuta Nemoto
Yuta Nemoto
Application Number:
JP2008319980A
Publication Date:
August 15, 2012
Filing Date:
December 16, 2008
Export Citation:
Assignee:
TOYOTA JIDOSHA KABUSHIKI KAISHA
International Classes:
H01M10/04; H01M2/10
Domestic Patent References:
| JP2000100404A | ||||
| JP2001068166A | ||||
| JP2005174680A | ||||
| JP2008108457A |
Attorney, Agent or Firm:
Patent Business Corporation Cosmos Patent Office