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Title:
SENSOR FOR MONITORING SEALED SECONDARY BATTERY, SEALED SECONDARY BATTERY, AND METHOD FOR MONITORING SEALED SECONDARY BATTERY
Document Type and Number:
WIPO Patent Application WO/2016/084620
Kind Code:
A1
Abstract:
This sensor for monitoring a sealed secondary battery is provided with polymer matrix layers 3 containing a magnetic filler and attached to an outer casing or electrodes, and a magnetism detection unit 4 for detecting a change in magnetism accompanying a deformation of the polymer matrix layers 3. The magnetic filler is magnetized in the in-plane direction of the polymer matrix layers 3. An interface layer 5 is formed between the polymer matrix layers 3 arranged with edges thereof facing each other. The directions of magnetization of the magnetic filler on one side and the other side having the interface layer 5 interposed therebetween are opposite to each other and intersect with the interface layer 5 as viewed in the thickness direction of the polymer matrix layers 3. The magnetism detection unit 4 is disposed on a straight line L1 extending in the thickness direction of the polymer matrix layers 3 through the interface layer 5.

Inventors:
FUKUDA TAKESHI (JP)
KAWAI TOSHIAKI (JP)
Application Number:
PCT/JP2015/081881
Publication Date:
June 02, 2016
Filing Date:
November 12, 2015
Export Citation:
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Assignee:
TOYO TIRE & RUBBER CO (JP)
International Classes:
G01B7/24; H01M2/02; H01M10/04; H01M10/48
Foreign References:
JP2008234840A2008-10-02
JPS5335593U1978-03-29
JP2004331038A2004-11-25
JP2006012504A2006-01-12
JPS63232230A1988-09-28
JP2004170300A2004-06-17
Attorney, Agent or Firm:
UNIUS PATENT ATTORNEYS OFFICE (JP)
Patent business corporation ユニアス international patent firm (JP)
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