Title:
BATTERY SYSTEM
Document Type and Number:
WIPO Patent Application WO/2016/002485
Kind Code:
A1
Abstract:
In a battery system in which a plurality of kinds of batteries are connected via switches (SW), when the switches (SW) are changed over with a voltage (charging rate), charging electric charges at the time of charging can be further increased in some cases depending on the direct-current resistances of the batteries. The present invention provides switch (SW) changeover control such that charging electric charges can be further increased.
According to a first characteristic of the present invention, a battery system in which a first battery and a second battery are connected in parallel via switches (SW) includes a means for measuring the resistance and an open circuit voltage (OCV) of each of the batteries and estimating a charging current, wherein a combination of the switches (SW) such that large charging electric charges can be obtained is adopted, thereby making it possible to further increase the charging electric charges.
Inventors:
INOUE TAKESHI (JP)
YAMADA KEIZO (JP)
MATSUMOTO TETSUYA (JP)
YAMADA KEIZO (JP)
MATSUMOTO TETSUYA (JP)
Application Number:
PCT/JP2015/067107
Publication Date:
January 07, 2016
Filing Date:
June 15, 2015
Export Citation:
Assignee:
HITACHI CHEMICAL CO LTD (JP)
International Classes:
H02J7/02; H02J7/00; H02J7/04; H02J7/10; H02J7/34
Domestic Patent References:
| WO2012147121A1 | 2012-11-01 | |||
| WO2013118612A1 | 2013-08-15 |
Other References:
See also references of EP 3163710A4
Attorney, Agent or Firm:
INOUE Manabu et al. (JP)
Manabu Inoue (JP)
Manabu Inoue (JP)
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