Battery pack

• US 20030072994A1
• Filed: 10/15/2002
• Published: 04/17/2003
• Est. Priority Date: 10/16/2001
• Status: Abandoned Application

• Current Assignee: NEC TOKIN Tochigi, Ltd.
• Original Assignee: NEC TOKIN Tochigi, Ltd.
• Inventors: Fujitsuka, Koichi, Goushu, Takashi
• Application Number:
  US10/269,863
• Publication Number:
  US 20030072994A1
• Time in Patent Office: Days
• US Class Current: 429/127
• CPC Class Codes: H01M 10/42 Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells H01M10/60 takes precedence
• CPC Class Codes: H01M 10/425 Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing printed circuits H05K1/00
• CPC Class Codes: H01M 50/24 adapted for protecting batteries from their environment, e.g. from corrosion thermal insulation H01M10/658
• CPC Class Codes: Y02E 60/10 Energy storage using batteries

Abstract

The invention provides a battery pack that comprises a battery covered with a flexible outer member and is not susceptible to damage even upon receipt of external impacts. In the battery pack, a built-in part including at least a protective circuit board is provided thereon with a cushioning member that is deformable by compression and restorable into shape after decompression. The cushioning member is attached to the surface of the battery by means of a thermally shrinkable tube or an adhesive tape applied on the side of a battery can.

Claims

1. A battery pack comprising a battery covered with a flexible member, wherein a built-in part including at least a protective circuit board is provided thereon with a cushioning member that is deformable by compression and restorable into shape after decompression.

2. The battery pack according to claim 1, wherein the cushioning member is at least one electrical insulating member selected from the group consisting of a foamed synthetic resin and a foamed rubber.

3. The battery pack according to claim 1, wherein the cushioning member is attached to a surface of the battery by means of a thermally shrinkable tube.

4. The battery pack according to claim 2, wherein the cushioning member is attached to a surface of the battery by means of a thermally shrinkable tube.

5. The battery pack according to claim 1, wherein the built-in part is attached to a surface of the battery by means of an adhesive tape.

6. The battery pack according to claim 2, wherein the built-in part is attached to a surface of the battery by means of an adhesive tape.