Title:
CHARGE CONTROL DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/190576
Kind Code:
A1
Abstract:
The purpose of the present invention is to accurately assess the need for charging by a recovery charge/discharge mode. Thi charge control device charges a lithium metal battery, which is a secondary battery in which lithium metal is used in a negative electrode, using a prescribed normal charge mode and a recovery charge/discharge mode. In the recovery charge/discharge mode, the lithium metal battery is temporarily discharged and then is charged for a longer time than in the normal charge mode. A detection unit detects a battery voltage, which is the voltage of the lithium metal battery. A calculation unit calculates the self-discharge rate of the lithium metal battery on the basis of a change in the battery voltage. A recording unit records a history of the self-discharge rate. An assessment unit assesses the need for charging by the recovery charge/discharge mode on the basis of a change in the self-discharge rate in time series in the history.
Inventors:
FUJINO TAKESHI (JP)
SAKASHITA NAOKI (JP)
OGASA HIROSHI (JP)
SAKASHITA NAOKI (JP)
OGASA HIROSHI (JP)
Application Number:
PCT/JP2023/012637
Publication Date:
October 05, 2023
Filing Date:
March 28, 2023
Export Citation:
Assignee:
HONDA MOTOR CO LTD (JP)
International Classes:
H01M10/44; H01M10/48; H02J7/00; H02J7/04
Foreign References:
| JP2020205142A | 2020-12-24 | |||
| JP2011165343A | 2011-08-25 |
Attorney, Agent or Firm:
SHOBAYASHI Masayuki et al. (JP)
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