ESTIMATION DEVICE, POWER STORAGE DEVICE, ESTIMATION METHOD, AND COMPUTER PROGRAM

WIPO Patent Application WO/2019/017183

A1

Power storage elements 3 each have a single pole including an active material in which a first characteristic that is a power storage amount-potential charging characteristic and a second characteristic that is a power storage amount-potential discharging characteristic are changed by repetition of charging/discharging. An estimation device 6 is provided with: a storage unit 63 that stores V - dQ/dV, the first characteristic, or the second characteristic of the single pole in association with a feature value changed by repetition of charging/discharging, so as to store plural values of the V - dQ/dV, the first characteristic, or the second characteristic in accordance with the change of the feature value, or to store the V - dQ/dV, the first characteristic, or the second characteristic as a function of the feature value; an acquisition unit 62 that acquires the feature value of each power storage element 3; and a first estimation unit 62 that estimates the V - dQ/dV, the first characteristic, or the second characteristic of the single pole by referring to the V - dQ/dV, the first characteristic, or the second characteristic of the single pole or by referring to the function on the basis of the feature value acquired by the acquisition unit 62.

UKUMORI NAN (JP)
INOUE KATSUYA (JP)
IKEDA YUICHI (JP)
KIDO RYOTA (JP)

PCT/JP2018/024811

January 24, 2019

June 29, 2018

Click for automatic bibliography generation  

GS YUASA INT LTD (JP)

G01R31/36; H01M10/42; H01M10/48; H02J7/00

WO2017098686A1

2017-06-15

JP2013019709A	2013-01-31
JP2014062829A	2014-04-10
JP2013140037A	2013-07-18
JP2015060761A	2015-03-30
JP2016085166A	2016-05-19

JOURNAL OF POWER SOURCES, vol. 229, 2013, pages 239 - 248

View/Download PDF      PDF Help

Previous Patent: SLIDING MEMBER AND SLIDING BEARING

Next Patent: ELECTRICAL APPARATUS USING BATTERY PACK