Charging control method for lithium-ion battery, charging control apparatus for lithium-ion battery and lithium-ion battery system
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United States of America Patent
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Jan 30, 2018
Issued Date -
N/A
app pub date -
Aug 18, 2015
filing date -
Sep 4, 2014
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A lithium-ion battery includes a cathode active material of the Olivine-type crystal structure. The lithium-ion battery is charged under control of a charging control apparatus, which performs a charging process for charging up to a target voltage according to a constant-current and constant-voltage charging method, a negative-electrode potential evaluation process for evaluating a potential change quantity at the negative-electrode, and a voltage setting process for setting the target voltage to a lower voltage based on the potential change quantity of the negative-electrode evaluated by the negative-electrode potential evaluation process. The charging voltage is changed from the target voltage to the set voltage even when the negative-electrode potential changes with an increase in the number of charging and aging deterioration. Thus a positive-electrode potential is suppressed from rising because of less susceptibility to the increase in number of charging and aging deterioration.
First Claim
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Family
| Country | kind | publication No. | Filing Date |
|---|---|---|---|
| JP | A | JP2016054082 | Sep 04, 2014 |
International Classification(s)
- 2015 Application Filing Year
- H02J Class
- 4445 Applications Filed
- 3538 Patents Issued To-Date
- 79.60 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 1 Citation Count
- H02J Class
- 22.71 % this patent is cited more than
- 7 Age
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