Battery cell assembly
First Claim
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1. A battery cell assembly, comprising:
- a pouch-type battery cell having a housing and first and second electrical terminals extending from the housing;
a battery cell sensor having a flexible plastic sheet, a microprocessor, a sensing circuit, and a heat generating circuit;
the flexible plastic sheet having a first side and a second side;
the microprocessor being operably coupled to the sensing circuit and the heat generating circuit;
the microprocessor, the sensing circuit, and the heat generating circuit being disposed on and coupled to the first side of the flexible plastic sheet, the flexible plastic sheet further having an adhesive portion disposed on the first side on a peripheral region of the flexible plastic sheet, the adhesive portion configured to adhere at least a portion of the first side of the flexible plastic sheet to an exterior surface of the housing of the pouch-type battery cell such that the microprocessor, the sensing circuit and the heat generating circuit are disposed between the flexible plastic sheet and the exterior surface of the housing of the pouch-type battery cell;
the sensing circuit configured to generate a signal that is indicative of an operational parameter value of the pouch-type battery cell;
the heat generating circuit having a heating element trace being disposed on and coupled to the flexible plastic sheet, the heating element trace being electrically coupled to the microprocessor;
the microprocessor being electrically coupled to the first and second electrical terminals of the pouch-type battery cell, the first and second electrical terminals supplying an operational voltage to the microprocessor;
the microprocessor being programmed to determine the operational parameter value based on the signal from the sensing circuit;
the microprocessor being further programmed to store the operational parameter value in a memory device; and
the microprocessor being further programmed to control the heat generating circuit based on the operational parameter value.
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Abstract
A battery cell assembly having a battery cell and a thin profile sensor is provided. The battery cell has a housing and first and second electrical terminals extending therefrom. The thin profile sensor has a flexible plastic sheet, a microprocessor, and a sensing circuit. The microprocessor and the sensing circuit are coupled to the flexible plastic sheet. The flexible plastic sheet is coupled to an exterior surface of the housing of the battery cell. The sensing circuit generates a signal that is indicative of an operational parameter value of the battery cell. The microprocessor determines the operational parameter value based on the signal from the sensing circuit.
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Citations
19 Claims
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1. A battery cell assembly, comprising:
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a pouch-type battery cell having a housing and first and second electrical terminals extending from the housing; a battery cell sensor having a flexible plastic sheet, a microprocessor, a sensing circuit, and a heat generating circuit;
the flexible plastic sheet having a first side and a second side;
the microprocessor being operably coupled to the sensing circuit and the heat generating circuit;
the microprocessor, the sensing circuit, and the heat generating circuit being disposed on and coupled to the first side of the flexible plastic sheet, the flexible plastic sheet further having an adhesive portion disposed on the first side on a peripheral region of the flexible plastic sheet, the adhesive portion configured to adhere at least a portion of the first side of the flexible plastic sheet to an exterior surface of the housing of the pouch-type battery cell such that the microprocessor, the sensing circuit and the heat generating circuit are disposed between the flexible plastic sheet and the exterior surface of the housing of the pouch-type battery cell;the sensing circuit configured to generate a signal that is indicative of an operational parameter value of the pouch-type battery cell; the heat generating circuit having a heating element trace being disposed on and coupled to the flexible plastic sheet, the heating element trace being electrically coupled to the microprocessor; the microprocessor being electrically coupled to the first and second electrical terminals of the pouch-type battery cell, the first and second electrical terminals supplying an operational voltage to the microprocessor; the microprocessor being programmed to determine the operational parameter value based on the signal from the sensing circuit; the microprocessor being further programmed to store the operational parameter value in a memory device; and the microprocessor being further programmed to control the heat generating circuit based on the operational parameter value. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A battery cell assembly, comprising:
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a pouch-type battery cell having a housing and first and second electrical terminals extending from the housing; a battery cell sensor having a flexible plastic sheet, a microprocessor, a sensing circuit, and a heat generating circuit;
the microprocessor being operably coupled to the sensing circuit and the heat generating circuit;
the microprocessor, the sensing circuit and the heat generating circuit being disposed on and coupled to the flexible plastic sheet, the flexible plastic sheet being coupled to an exterior surface of the housing of the pouch-type battery cell;the sensing circuit having a resistive trace disposed directly on and coupled to the flexible plastic sheet, the resistive trace having at least first and second resistive trace portions spaced apart from one another and extending substantially parallel to one another, the resistive trace having a resistance level that varies based on a temperature level of the pouch-type battery cell, the sensing circuit configured to generate a first voltage indicative of the temperature level of the pouch-type battery cell; the heat generating circuit having a heating element trace being disposed directly on and coupled to the flexible plastic sheet, the heating element trace having at least first and second heating element trace portions spaced apart from one another and extending substantially parallel to one another, the first and second heating element trace portions extending substantially parallel to the first and second resistive trace portions, the first resistive trace portion being disposed between the first and second heating element trace portions, the heating element trace being electrically coupled to the microprocessor; the microprocessor being programmed to determine a temperature value corresponding to the temperature level of the pouch-type battery cell, based on the first voltage; and the microprocessor being further programmed to control the heat generating circuit based on the temperature value. - View Dependent Claims (16, 18)
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17. A battery cell assembly, comprising:
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a battery cell having a housing and first and second electrical terminals extending from the housing; a battery cell sensor having a flexible plastic sheet, a microprocessor, and a sensing circuit;
the microprocessor being operably coupled to the sensing circuit;the flexible plastic sheet having a first side and a second side;
the flexible plastic sheet further having an adhesive portion disposed on a peripheral region on the first side of the flexible plastic sheet, the adhesive portion configured to adhere the first side of the flexible plastic sheet to the exterior surface of the housing of the battery cell;the microprocessor and the sensing circuit being coupled to the first side of the flexible plastic sheet such that the microprocessor and the sensing circuit are disposed between the flexible plastic sheet and the exterior surface of the housing of the battery cell, the microprocessor and the sensing circuit being further disposed within a region on the first side of the flexible plastic sheet that is peripherally surrounded by the adhesive portion; the sensing circuit having a resistive trace disposed directly on and coupled to the first side of the flexible plastic sheet, the resistive trace having a resistance level that varies based on a temperature level of the battery cell, the sensing circuit configured to generate a first voltage indicative of the temperature level of the battery cell; the microprocessor being programmed to determine a temperature value corresponding to the temperature level of the battery cell, based on the first voltage; and the microprocessor being further programmed to store the temperature value in a memory device. - View Dependent Claims (19)
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Specification