SECONDARY BATTERY TESTER, SECONDARY BATTERY TESTING METHOD, AND MANUFACTURING METHOD OF SECONDARY BATTERY
First Claim
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1. A secondary battery tester for testing a state of a secondary battery based on an impedance characteristic of the secondary battery, the tester comprising:
- an impedance acquiring section configured to acquire an impedance value of the secondary battery; and
a determining section configured to determine a state of a solid electrolyte interface (SEI) layer of the secondary battery based on the impedance value acquired by the impedance acquiring section.
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Abstract
There is provided a secondary battery tester for testing a state of a secondary battery based on an impedance characteristic of the secondary battery. The tester includes: an impedance acquiring section configured to acquire an impedance value of the secondary battery; and a determining section configured to determine a state of a solid electrolyte interface (SEI) layer of the secondary battery based on the impedance value acquired by the impedance acquiring section.
19 Citations
10 Claims
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1. A secondary battery tester for testing a state of a secondary battery based on an impedance characteristic of the secondary battery, the tester comprising:
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an impedance acquiring section configured to acquire an impedance value of the secondary battery; and a determining section configured to determine a state of a solid electrolyte interface (SEI) layer of the secondary battery based on the impedance value acquired by the impedance acquiring section. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method of testing a state of a secondary battery based on an impedance characteristic of the secondary battery, the tester comprising:
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(a) acquiring an impedance value of the secondary battery; and (b) determining a state of a solid electrolyte interface (SEI) layer of the secondary battery based on the impedance value.
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8. A secondary battery tester for testing a state of a secondary battery based on an impedance characteristic of the secondary battery, the tester comprising:
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a voltage setting section configured to set a voltage of the secondary battery to a voltage that is close to a lower limit of a use voltage range of the secondary battery; an impedance acquiring section configured to acquire an impedance value of the secondary battery; and a determining section configured to determine a state of the secondary battery based on the impedance value acquired by the impedance acquiring section. - View Dependent Claims (9)
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10. A method of manufacturing a secondary battery, comprising:
testing a state of the secondary battery based on an impedance characteristic of the secondary battery, the testing step comprising; (a) setting a voltage of the secondary battery to a voltage that is close to a lower limit of a use voltage range of the secondary battery; (b) acquiring an impedance value of the secondary battery; and (c) determining a state of the secondary battery based on the impedance value.
Specification