Detection device, management apparatus, and detection method
AssigneeKabushiki Kaisha Toyota Chuo Kenkyusho
InventorsKeisuke ISHIKAWA, Masanori ISHIGAKI
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Abstract
A detection device includes a detector and a controller. The detector has at least one resonator circuit applying at least one specific frequency vibration to a lithium-ion secondary battery, measures an attenuation characteristic of at least one resonant current, and outputs the attenuation characteristic as a detection signal. The controller detects lithium deposition and/or presence of foreign metal inside the lithium-ion secondary battery by using the detection signal of the attenuation characteristic acquired from the detector.
Claims14
A detection device that detects a state of a lithium-ion secondary battery, the detection device comprising:
- a detector having at least one resonator circuit that applies at least one specific frequency vibration to the lithium-ion secondary battery, the detector measuring an attenuation characteristic of at least one resonant current and outputting the attenuation characteristic as a detection signal;
- and
- a controller that detects lithium deposition and/or presence of foreign metal inside the lithium-ion secondary battery by using the detection signal of the attenuation characteristic acquired from the detector.
A detection method for detecting a state of a lithium-ion secondary battery, the detection method comprising:
- an output step for applying at least one specific frequency vibration to the lithium-ion secondary battery, measuring an attenuation characteristic of at least one resonant current, and outputting the attenuation characteristic as a detection signal;
- and
- a detection step for detecting lithium deposition and/or presence of foreign metal inside the lithium-ion secondary battery by using the detection signal of the attenuation characteristic acquired in the output step.
Dependencies are inferred from the claim text.