A valuation method of a battery system and a battery system

Title:

A valuation method of a battery system and a battery system

Document Type and Number:

Japanese Patent JP6004334

Kind Code:

B2

Abstract:

A battery system includes: a secondary battery; a memory portion that stores information which includes a measurement frequency, a measurement temperature, and an initial limiting capacitance of one secondary battery; a temperature measuring section; a power supply section which applies an AC signal of 0.5 mHz to 10 mHz, to the secondary battery at 40° C. to 70° C.; a measuring portion which measures an impedance of the secondary battery by the AC signal; and a calculating portion that calculates the degree of degradation of the secondary battery.

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Inventors:

Tetsuya Osaka
Satoshi Monma
Tokihiko Yokoshima
Daikichi Mukaiyama
Yuki Nara

Application Number:

JP2012223124A

Publication Date:

October 05, 2016

Filing Date:

October 05, 2012

Export Citation:

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Assignee:

Waseda University

International Classes:

G01R31/36; H01M10/48; H01M10/60; H02J7/00

Domestic Patent References:

JP201138857A

Attorney, Agent or Firm:

Susumu Ito
Yasushi Hasegawa
Osamu Shinoura

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