Title:
POWER STORAGE SYSTEM
Document Type and Number:
WIPO Patent Application WO/2015/060139
Kind Code:
A1
Abstract:
Provided is an improved power storage system with which the charging voltage of a lead-acid battery can be increased while maintaining the rated voltage of an electrical load, thereby extending the service life of the lead-acid battery. This system is equipped with an output-type battery, which discharges current to an electrical load and is charged with current from a generator, and a lead-acid battery, which discharges current to this output-type battery and is charged with current from the output-type battery. The rated current of the output-type battery is set so as to be greater than the rated current of the lead-acid battery, and the lead-acid battery is connected in series to the output-type battery through a direct-current voltage converter. When the lead-acid battery is being charged, the allotted voltage of the direct-current voltage converter is reduced by the output-type battery connected in series to the direct-current voltage converter, thereby enabling the power of the direct-current voltage converter to be controlled. In addition, the service life of the lead-acid battery can be extended by increasing the charging voltage of the lead-acid battery while maintaining the rated voltage of the electrical load.
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Inventors:
INOUE TAKESHI (JP)
SAKAI MASANORI (JP)
YAMADA KEIZO (JP)
MINOURA SATOSHI (JP)
TAKEDA KENJI (JP)
SAKAI MASANORI (JP)
YAMADA KEIZO (JP)
MINOURA SATOSHI (JP)
TAKEDA KENJI (JP)
Application Number:
PCT/JP2014/077154
Publication Date:
April 30, 2015
Filing Date:
October 10, 2014
Export Citation:
Assignee:
SHIN KOBE ELECTRIC MACHINERY (JP)
International Classes:
H02J7/16; B60R16/03; H02J7/34
Foreign References:
| JP2002218667A | 2002-08-02 | |||
| JP2011041461A | 2011-02-24 |
Attorney, Agent or Firm:
POLAIRE I. P. C. (JP)
Polaire Intellectual Property Corporation (JP)
Polaire Intellectual Property Corporation (JP)
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