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Title:
BATTERY PACK SYSTEM AND MANAGEMENT METHOD OF BATTERY PACK SYSTEM
Document Type and Number:
Japanese Patent JP2013160582
Kind Code:
A
Abstract:

To readily determine degradation and abnormality of a battery pack formed by serially connecting a number of secondary batteries.

A battery pack system repeatedly sets a charge period in which a charge current is supplied and a charge suspension period in which the supply is stopped, for a single battery pack 3 formed by serially connecting a number of cells 2. The battery pack system includes a battery management unit 6 which monitors voltages of the cells 2 and the single battery pack 3, and a control unit 7 which determines abnormality of the cells 2 on the basis of voltages VC of the cells 2 in the charge period or the voltages VC of the cells 2 in the charge suspension period, and then stops the supply of the charge current to the single battery pack 3 including the cells 2.


Inventors:
YABUTA KAHO
TSUJIKAWA TOMONOBU
MATSUSHITA TAKASHI
SUZUKI NOBUHIKO
KITANO RIICHI
MATSUSHIMA TOSHIO
Application Number:
JP2012021629A
Publication Date:
August 19, 2013
Filing Date:
February 03, 2012
Export Citation:
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Assignee:
NTT FACILITIES INC
NTT FACILITIES SOGO KENKYUSHO KK
International Classes:
G01R31/36; H01M10/44; H02J7/00; H02J7/02
Domestic Patent References:
JPH11224696A1999-08-17
JPH10322917A1998-12-04
JPH10270092A1998-10-09
JP2007187533A2007-07-26
JPH07298504A1995-11-10
JPH09261883A1997-10-03
JPH0898421A1996-04-12
JPH10304589A1998-11-13
Attorney, Agent or Firm:
Harushima Shigetokiro



 
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