Monitoring sensor including a polymer matrix for monitoring a sealed secondary battery, sealed secondary battery including the monitoring sensor, and monitoring method for sealed secondary battery
AssigneeToyo Tire Corporation
InventorsTakeshi Fukuda, Nobuyuki Minakata
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Abstract
A monitoring sensor for a sealed secondary battery 1 including a sealed outer casing 21 and an electrode group 22 accommodated in the inside of the sealed outer casing 21, including a polymer matrix layer 3 that is disposed in the inside of the outer casing 21 and a detection unit 4 that is disposed on the outside of the outer casing 21, wherein the polymer matrix layer 3 contains a filler that is dispersed therein and that changes an external field in accordance with deformation of the polymer matrix layer 3, and the detection unit 4 detects change in the external field.
Claims10
A monitoring sensor for a sealed secondary battery including a sealed outer casing and an electrode group accommodated in an inside of the sealed outer casing, comprising:
- a polymer matrix layer that is disposed in the inside of the sealed outer casing;
- and
- a detection unit that is disposed on an outside of the sealed outer casing, wherein
- the polymer matrix layer contains a filler that is dispersed therein and that changes an external field in accordance with deformation of the polymer matrix layer, and
- the detection unit detects change in the external field.
A sealed secondary battery, comprising:
- a sealed outer casing and an electrode group accommodated in an inside of the sealed outer casing;
- a polymer matrix layer that is disposed in the inside of the outer casing;
- and
- a detection unit that is disposed on an outside of the outer casing,
- wherein the polymer matrix layer contains a filler that is dispersed therein and that changes an external field in accordance with deformation of the polymer matrix layer, and
- the detection unit detects change in the external field.
Dependencies are inferred from the claim text.