Title:
PROTECTION ELEMENT FOR BATTERY AND PACK BATTERY WITH IT
Document Type and Number:
Japanese Patent JP3634657
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To reduce an unreasonable stress applied to an electrode body of a battery by a protective element, by making a battery pack thin and bringing the protection element close to the surface of the battery.
SOLUTION: This protection element is equipped with a case 3 in contact with the surface of a battery and a temperature sensitive part built in the case 3 to control a current passing through the battery by the battery temperature or to output a signal to control the current passing through the battery. The case 3 of the protective element 1 is formed slender extending in the longitudinal direction of the battery, and is provided with a longitudinal groove 6 on the contact surface in contact with the surface of the battery. The surface of the battery is placed in the groove 6 in order to bring the case 3 into contact with the surface of the battery.
Inventors:
Ryoji Takasaki
Kazuo Osaki
Kazuo Osaki
Application Number:
JP4772199A
Publication Date:
March 30, 2005
Filing Date:
February 25, 1999
Export Citation:
Assignee:
Sanyo Electric Co., Ltd.
International Classes:
H01M10/05; H01M10/0565; H01M10/058; H01M10/42; H01M50/528; H02H7/18; (IPC1-7): H01M10/42; H01M2/10
Domestic Patent References:
| JP7085896A |
Attorney, Agent or Firm:
Yasuhiro Toyosu