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
First Claim
1. 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, whereinthe 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, andthe detection unit detects change in the external field.
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Accused Products
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.
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Citations
10 Claims
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1. 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:
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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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A sealed secondary battery, comprising:
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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.
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Specification