STORAGE BATTERY EVALUATING DEVICE, POWER STORAGE SYSTEM AND STORAGE BATTERY EVALUATING METHOD

WIPO Patent Application WO/2017/022037

A1

[Problem] To evaluate the degradation of a power storage system without stopping the functions of the power storage system. [Solution] A storage battery evaluating device according to an embodiment of the present invention is provided with a data generating unit and a degradation evaluating unit. On the basis of a current value and a voltage value which are measured from a power storage device in which charging and discharging are controlled according to charging and discharging command values, the data generating unit generates a plurality of pieces of correspondence data between the charge amount and the voltage value of the power storage device. The degradation evaluating unit evaluates the degradation state of the power storage device on the basis of the distribution of the voltage value of the correspondence data belonging to a first charge amount range, when the distribution of first charging and discharging command values, which are the charging and discharging command values by which the correspondence data belonging to the first charge amount range are obtained by means of the charging and discharging control, satisfies a predetermined condition.

YAMAMOTO TAKAHIRO (JP)
KOSUGI SHINICHIRO (JP)
TAKEUCHI RYOSUKE (JP)
SAKUMA MASATAKE (JP)
WADA TAKAHISA (JP)
EZAWA TORU (JP)
KOBAYASHI TAKENORI (JP)

PCT/JP2015/071873

February 09, 2017

July 31, 2015

Click for automatic bibliography generation  

TOSHIBA KK (JP)

G01R31/36; H01M10/48

WO2015041093A1

2015-03-26

JP2014190763A	2014-10-06
JP2015031674A	2015-02-16
JP2013225441A	2013-10-31
JP2015031674A	2015-02-16

See also references of EP 3330726A4

KATSUNUMA Hirohito et al. (JP)

View/Download PDF      PDF Help

Previous Patent: SHOCK ABSORBER FOR BAGS

Next Patent: INDIVIDUAL PACKAGE FOR ABSORBENT ARTICLE AND METHOD FOR MANUFACTURING INDIVIDUAL PACKAGE FOR ABSORBE...