Title:
LEAD-ACID STORAGE BATTERY SYSTEM, AND LEAD-ACID STORAGE BATTERY LIFE ESTIMATION METHOD
Document Type and Number:
WIPO Patent Application WO/2023/149303
Kind Code:
A1
Abstract:
Provided is a lead-acid storage battery system and a lead-acid storage battery life estimation method capable of accurately estimating a remaining life of a lead-acid storage battery by calculating a capacity turnover value during operation (CT value during operation), taking into account at least one of an upper limit SOC and an upper limit voltage. A capacity turnover value calculating unit (138), (237), (337) of a lead-acid storage battery system (S) calculates the CT value during operation using at least one of a correction factor KHSOC based on an upper limit SOC, calculated on the basis of the upper limit SOC, which is an SOC having the largest value when a lead-acid storage battery (B) is charged, and a correction factor KHV based on an upper limit voltage, calculated on the basis of the upper limit voltage, which is the highest voltage when the lead-acid storage battery (B) is charged.
Inventors:
KUTSUMA AYAKA (JP)
NAKAMURA HIDETO (JP)
TANIMURA YUDAI (JP)
SATO TOSHIYUKI (JP)
YOSHIDA HIDEAKI (JP)
NAKAMURA HIDETO (JP)
TANIMURA YUDAI (JP)
SATO TOSHIYUKI (JP)
YOSHIDA HIDEAKI (JP)
Application Number:
PCT/JP2023/002259
Publication Date:
August 10, 2023
Filing Date:
January 25, 2023
Export Citation:
Assignee:
FURUKAWA ELECTRIC CO LTD (JP)
FURUKAWA BATTERY CO LTD (JP)
FURUKAWA BATTERY CO LTD (JP)
International Classes:
G01R31/392; G01R31/379; H01M10/48; H02J7/00
Domestic Patent References:
| WO2022030415A1 | 2022-02-10 |
Foreign References:
| JP2003161768A | 2003-06-06 | |||
| JP2008074257A | 2008-04-03 | |||
| JP6430054B1 | 2018-11-28 | |||
| CN103529399A | 2014-01-22 | |||
| CN112290637A | 2021-01-29 |
Other References:
NAKAJIMA HIDEHITO, HONMA, TOKUNORI, MIDORIKAWA, KIYOSHI, AKASAKA, YUICHI, SHIBATA, SATOSHI, YOSHIDA, HIDEAKI, HASHIMOTO, KENSUKE, : "Development of UltraBattery", vol. 131, 1 February 2013 (2013-02-01), pages 21 - 27, XP093082556, ISSN: 1348-1789
NOGUCHI, HIROMASA, MANGAHARA, TOHRU: "Development of Long-life VRLA Battery for Deep Cycle Use", PROCEEDINGS OF THE 45TH BATTERY SYMPOSIUM IN JAPAN; 2004.11.27-29, 27 November 2004 (2004-11-27) - 29 November 2004 (2004-11-29), pages 502 - 503, XP009548358
NOGUCHI, HIROMASA, MANGAHARA, TOHRU: "Development of Long-life VRLA Battery for Deep Cycle Use", PROCEEDINGS OF THE 45TH BATTERY SYMPOSIUM IN JAPAN; 2004.11.27-29, 27 November 2004 (2004-11-27) - 29 November 2004 (2004-11-29), pages 502 - 503, XP009548358
Attorney, Agent or Firm:
TANAKA Hidetetsu et al. (JP)
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