Title:
ニッケル水素電池の充電量表示装置および充電量表示方法
Document Type and Number:
Japanese Patent JP5875089
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To solve a problem that a calculation error is large, calculation and preparation works are complicated and the precision is not sufficient in a method of determining the charge amount of a secondary battery on the basis of a terminal voltage of the battery by using SOC characteristics because SOC is frequently utilized to represent the charge state of a secondary battery, or determining the charge amount by integrating charge current.SOLUTION: In a nickel hydrogen battery, active material of a negative electrode is hydrogen. The pressure of hydrogen gas enclosed inside the nickel hydrogen battery is detected, and a unit conversion or the like is performed to display a conversion value or the like on a display device. According to the display device and method described above, the charge amount of the nickel hydrogen battery can be accurately displayed.
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Inventors:
Tsutsumi Kazuo
Application Number:
JP2014111896A
Publication Date:
March 02, 2016
Filing Date:
May 30, 2014
Export Citation:
Assignee:
Exergy Power Systems, Inc.
International Classes:
H01M10/48; G01R31/36; H01M10/30; H02J7/00
Domestic Patent References:
| JP2010040324A | ||||
| JP8194037A | ||||
| JP2006012761A | ||||
| JP2009181906A | ||||
| JP6163071A |
Foreign References:
| WO2013094383A1 | ||||
| WO2014010024A1 |
Attorney, Agent or Firm:
Mune Kashima