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Patent Searching and Data


Title:
POWER STORAGE DEVICE, POWER STORAGE SYSTEM, POWER SUPPLY SYSTEM, AND CONTROL METHOD FOR POWER STORAGE DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/135300
Kind Code:
A1
Abstract:
A power storage device comprising a control unit capable of executing a full charge capacity correction mode, wherein the full charge capacity correction mode executes a residual capacity calculation operation that calculates the actual residual capacity and an operation that integrates current values during discharge from full charge capacity to a set capacity and calculates the consumed capacity from full charge capacity to the set capacity, executing said operations on the basis of a first voltage of a battery unit when discharged from full charge capacity to the set capacity and the correlation between a preset battery unit voltage and a battery capacity. The sum of the actual residual capacity and the consumed capacity is reset as the full charge capacity. The correlation between the battery unit voltage and the battery capacity is preset as a plurality of correlations at different environmental temperatures. The residual capacity calculation operation is executed using a correlation among the plurality of correlations that is close to the actual environmental temperature.

Inventors:
KAWABE Masaru (5-1-1 Torikainishi, Settsu-sh, Osaka 72, 〒5660072, JP)
MATSUDA Takashi (5-1-1 Torikainishi, Settsu-sh, Osaka 72, 〒5660072, JP)
SATO Yukinari (5-1-1 Torikainishi, Settsu-sh, Osaka 72, 〒5660072, JP)
Application Number:
JP2018/033791
Publication Date:
July 11, 2019
Filing Date:
September 12, 2018
Export Citation:
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Assignee:
KANEKA CORPORATION (2-3-18, Nakanoshima Kita-ku, Osaka-sh, Osaka 88, 〒5308288, JP)
International Classes:
H02J7/00; G01R31/36; H01M10/48
Attorney, Agent or Firm:
MAEDA & PARTNERS (Shin-Daibiru Bldg. 23F, 2-1 Dojimahama 1-chome, Kita-ku, Osaka-sh, Osaka 04, 〒5300004, JP)
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