Title:
電池パック
Document Type and Number:
Japanese Patent JP4639818
Kind Code:
B2
Abstract:
To provide a battery pack having high volume efficiency, securing external impact strength of a battery pack, and easy to position in a battery pack housing part.
A top cover is molded so that the fitting cross section of the top cover fitting to a battery cell becomes an elliptic shape having a curved surface part of a curvature radius different in the bottom side of the battery cell and the top side of the battery cell. A corner part having the same curvature radius as that in the corresponding fitting part is formed in the top surface part forming a part of the outer package of the battery pack, and a plane part is installed in a part corresponding to the side part of the battery pack.
COPYRIGHT: (C)2006,JPO&NCIPI
Inventors:
Fumihiko Suzuki
Osamu Takahashi
Osamu Takahashi
Application Number:
JP2005014616A
Publication Date:
February 23, 2011
Filing Date:
January 21, 2005
Export Citation:
Assignee:
ソニー株式会社
International Classes:
H01M2/10; H01M2/02
Domestic Patent References:
| JP2004165134A | ||||
| JP2004063383A | ||||
| JP2004273174A | ||||
| JP2003282039A |
Attorney, Agent or Firm:
Masatomo Sugiura