LIFE-EXTENDING RECHARGE CONTROL FOR COLD WEATHER LITHIUM-ION POWER SUPPLIES

A lithium-ion battery assembly configured to provide electric power to a vehicle. The battery assembly includes a plurality of battery cells interconnected to provide a combined electrical potential between positive and negative terminals of the battery assembly, and a printed circuit board assembly...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	Ludwig, Brent C, Sanders, Justin H, Martin, Matthew J, Guglielmo, Kennon H, Souder, Jason S
Format:	Patent
Sprache:	eng
Schlagworte:	BASIC ELECTRIC ELEMENTS CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR ELECTRICITY GENERATION MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS PRINTED CIRCUITS PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY SYSTEMS FOR STORING ELECTRIC ENERGY
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Beschreibung
Zusammenfassung:	A lithium-ion battery assembly configured to provide electric power to a vehicle. The battery assembly includes a plurality of battery cells interconnected to provide a combined electrical potential between positive and negative terminals of the battery assembly, and a printed circuit board assembly (PCBA) disposed adjacent to a first array of battery cells of the plurality of battery cells. The PCBA includes a collector plate electrically coupled with the first array of battery cells, a temperature sensor configured to obtain temperature readings, a plurality of heaters configured to generate heat using electrical power, and an assembly processor. The assembly processor is configured to obtain readings from the temperature sensor, determine an estimated battery cell temperature, and initiate a heating program by delivering electrical power to the plurality of heaters from an electrical power source when the estimated battery cell temperature is below a threshold.