Patent application number | Description | Published |
20100075213 | Cell thermal runaway propagation resistant battery pack - A means for inhibiting the propagation of thermal runaway within a plurality of batteries is provided, wherein the means is comprised of a layer of intumescent material covering the interior surfaces of the battery pack. | 03-25-2010 |
20100075221 | Cell thermal runaway propagation resistance using an internal layer of intumescent material - A means for inhibiting the propagation of thermal runaway within a plurality of batteries is provided, wherein the means is comprised of at least one layer of intumescent material interposed between the interior surface of the casing of a battery and the corresponding electrode assembly. | 03-25-2010 |
20100086844 | Cell Thermal Runaway Propagation Resistance Using Dual Intumescent Material Layers - A means for inhibiting the propagation of thermal runaway within a plurality of batteries is provided, wherein the means is comprised of a pair of intumescent material layers coating the battery casing, or at least a portion thereof. | 04-08-2010 |
20100136385 | Method and apparatus for maintaining cell wall integrity during thermal runaway using an outer layer of intumescent material - A method and apparatus is provided in which a layer of an intumescent material surrounds the casing of a battery, the layer helping to prevent the formation of perforations in the battery casing during a thermal runaway event and, if a perforation is formed, inhibiting the flow of hot, pressurized gas from within the battery. A sleeve, surrounding the cell, may be used to contain the intumescent material during the thermal event. | 06-03-2010 |
20100136402 | Sealed battery enclosure - A sealed battery enclosure to extend the life of the batteries contained therein is provided, the sealed battery enclosure significantly reducing contamination from water or other liquids and gases. | 06-03-2010 |
20100136404 | Thermal barrier structure for containing thermal runaway propagation within a battery pack - A battery pack is provided that includes one or more thermal barrier elements, the thermal barrier elements dividing the cells within the battery pack into groups of cells. The thermal barrier elements that separate the cells into groups prevent a thermal runaway event initiated in one group of cells from propagating to the cells within a neighboring group of cells. | 06-03-2010 |
20100212338 | Battery pack temperature optimization control system - A method and apparatus for limiting the adverse effects of temperature on the electrical energy storage system (ESS) of an electric vehicle after the vehicle has been turned off are provided. In general, whether or not coolant is circulated through a coolant loop coupled to the ESS depends on the difference between the ambient temperature and a preset temperature, the preset temperature typically corresponding to the temperature of the ESS. | 08-26-2010 |
20100273034 | Battery pack enclosure with controlled thermal runaway release system - A battery pack thermal management system is provided that is comprised of at least one enclosure failure port integrated into at least one wall of a battery pack enclosure, where the enclosure failure port(s) remains closed during normal operation of the battery pack, and opens during a battery pack thermal runaway event, thereby providing a flow path for hot gas generated during the thermal runaway event to be exhausted out of the battery pack enclosure in a controlled fashion. | 10-28-2010 |
20100316894 | Integrated battery pressure relief and terminal isolation system - A system for integrating the venting feature of a battery with a means for simultaneously disconnecting the cell from the battery pack, thereby isolating the cell, is provided. The provided battery interconnect system is comprised of a battery, a connector plate for electrically coupling the battery to a battery pack, and an interruptible electrical connector for electrically coupling the connector plate to a battery terminal vent. The vent, defined by scoring on the battery terminal, ruptures when the internal battery pressure exceeds the predefined battery operating range, causing the interruptible electrical connector to break and disrupt electrical continuity between the connector plate and the battery terminal. | 12-16-2010 |
20100318266 | Interface for vehicle function control via a touch screen - A method and apparatus for controlling a particular vehicle function, for example the adjustment of a vehicle seat, using a graphical user interface (GUI) is provided. The GUI is activating by toggling a control, switch intuitively linked to the particular vehicle function. The control switch is separate from, and not proximate to, the GUI. When the GUI is activated by toggling the control switch, a control screen specific to the particular vehicle function is displayed on the GUI. | 12-16-2010 |
20110014506 | Method and Apparatus for Maintaining Cell Wall Integrity Using a High Yield Strength Outer Sleeve - A method and apparatus is provided in which a pre-formed sleeve or pre-formed secondary can comprised of one or more layers of a high yield strength material is positioned around the pre-formed battery case, the pre-formed sleeve/secondary can inhibiting the flow of hot, pressurized gas from within the battery through perforations formed in the battery casing during a thermal runaway event. | 01-20-2011 |
20110014514 | Cell with an Outer Layer of Intumescent Material - A battery assembly is provided that includes a layer of intumescent material that coats the sidewall and bottom surface of the cell casing, excluding at least one case contact region. | 01-20-2011 |
20110296855 | Thermal Management System with Dual Mode Coolant Loops - A dual mode, thermal management system for use in a vehicle is provided. At a minimum, the system includes a first coolant loop in thermal communication with a battery system, a second coolant loop in thermal communication with at least one drive train component (e.g., electric motor, power electronics, inverter), and a dual mode valve system that provides means for selecting between a first mode where the two coolant loops operate in parallel, and a second mode where the two coolant loops operate in series. | 12-08-2011 |
20120046815 | Method for Optimizing Battery Pack Temperature - A method for limiting the adverse effects of temperature on the electrical energy storage system (ESS) of an electric vehicle after the vehicle has been turned off is provided. In general, whether or not coolant is circulated through a coolant loop coupled to the ESS depends on the difference between the ambient temperature and a preset temperature, the preset temperature typically corresponding to the temperature of the ESS. | 02-23-2012 |
20120270080 | Integrated Battery Pressure Relief and Terminal Isolation System - A system for integrating the venting feature of a battery with a means for simultaneously disconnecting the cell from the battery pack, thereby isolating the cell, is provided. The provided battery interconnect system is comprised of a battery, a connector plate for electrically coupling the battery to a battery pack, and an interruptible electrical connector for electrically coupling the connector plate to a battery terminal vent. The venting region, defined by scoring on the battery terminal, ruptures when the internal battery pressure exceeds the predefined battery operating range, causing the interruptible electrical connector to break and disrupt electrical continuity between the connector plate and the battery terminal. | 10-25-2012 |
20120308857 | Method and Apparatus for Maintaining Cell Wall Integrity Using a High Yield Strength Outer Casing - A method and apparatus is provided in which a pre-formed secondary can comprised of one or more layers of a high yield strength material is positioned around the pre-formed battery case, the pre-formed secondary can inhibiting the flow of hot, pressurized gas from within the battery through perforations formed in the battery casing during a thermal runaway event. | 12-06-2012 |
20120308858 | Battery Pack Enclosure with Controlled Thermal Runaway Release System - A battery pack thermal management system is provided that is comprised of at least one enclosure failure port integrated into at least one wall of a battery pack enclosure, where the enclosure failure port(s) remains closed during normal operation of the battery pack, and opens during a battery pack thermal runaway event, thereby providing a flow path for hot gas generated during the thermal runaway event to be exhausted out of the battery pack enclosure in a controlled fashion. | 12-06-2012 |
20120308859 | Battery Pack Enclosure with Controlled Thermal Runaway Release System - A battery pack thermal management system is provided that is comprised of at least one enclosure failure port integrated into at least one wall of a battery pack enclosure, where the enclosure failure port(s) remains closed during normal operation of the battery pack, and opens during a battery pack thermal runaway event, thereby providing a flow path for hot gas generated during the thermal runaway event to be exhausted out of the battery pack enclosure in a controlled fashion. | 12-06-2012 |