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Title:
COMPOSITE POWER STORAGE SYSTEM
Document Type and Number:
Japanese Patent JP2015097463
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a composite power storage system capable of improving regenerative capability and estimating before regeneration a current flowing in a battery at the regeneration.SOLUTION: The composite power storage system includes: a first battery 301 connected to a load 15 through a first switch SW1; and a second battery 302 connected to the load 15 through a third switch SW3. One end of the first switch SW1 is interconnected to one end of the third switch SW3. A second switch SW2 is connected in parallel to the first switch SW1, and a fourth switch SW4 is connected in parallel to the third switch SW3. The composite power storage system further includes: means 307-310 for detecting each current and voltage of the batteries 301, 302; and a controller 311 for performing on/off control of each switch SW1-SW4 on the basis of the current and the voltage detected by the above means.

Inventors:
INOUE TAKESHI
MINOURA SATOSHI
SAKABE HIROSHI
KAWAHARA YOHEI
Application Number:
JP2013237427A
Publication Date:
May 21, 2015
Filing Date:
November 15, 2013
Export Citation:
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Assignee:
HITACHI CHEMICAL CO LTD
International Classes:
H02J7/14; B60L11/18; G01R31/36; H02J7/00; H02J7/02; H02J7/34
Domestic Patent References:
JP2007110887A2007-04-26
JP2008123699A2008-05-29
JP2013076668A2013-04-25
JP2010232106A2010-10-14
JP2009296837A2009-12-17
JP2007195312A2007-08-02
JP2004025979A2004-01-29
JP2007513459A2007-05-24
Foreign References:
WO2012132985A12012-10-04
Attorney, Agent or Firm:
Yusuke Hiraki
Sekiya Mitsuo
Toshiaki Watanabe



 
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