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Patent Searching and Data


Title:
POWER STORAGE SYSTEM AND ITS CHARGE/DISCHARGE CONTROLLING METHOD
Document Type and Number:
Japanese Patent JP2003189496
Kind Code:
A
Abstract:

To realize a power storage system in which the lifetime of a battery can be prevented from shortening by preventing repetition of low capacity charge/discharge as compared with the total battery capacity in a short time.

The power storage system comprises a power storage means consisting of two battery groups A-3 and B-4 having an equal chargeable/ dischargeable battery capacity, and a rectification system 2 for switching the power storage system between charging operation and discharging operation depending on the magnitude of power receiving from an energy supply/load unit 1. The rectification system 2 regards any one of two battery groups A-3 and B-4 as an object to be charged and the other as an object to be discharged based on the quantity of power being stored in each battery group.


Inventors:
Hashimoto, Tsutomu
Tajima, Hidehiko
Application Number:
JP2001000378540
Publication Date:
July 04, 2003
Filing Date:
December 12, 2001
Export Citation:
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Assignee:
MITSUBISHI HEAVY IND LTD
International Classes:
H02J7/02; H01M10/44; H02J15/00; (IPC1-7): H02J7/02; H01M10/44; H02J15/00
Attorney, Agent or Firm:
藤田 考晴 (外3名)