Abstract: A battery interconnection system incorporating a temperature control mechanism having a first battery cell and a second battery cell is provided. The first battery cell has an electrically positive tab and an electrically negative tab. The second battery cell has an electrically positive tab and a electrically negative tab. The electrically positive tab of the first battery cell couples with the electrically positive tab of the second battery cell. Moreover, the electrically negative tab of the first battery cell couples with the electrically negative tab of the second battery cell. The first battery cell includes a cathode electrically coupled with the electrically positive tab of the first battery cell and the second battery cell includes a cathode electrically coupled with the electrically positive tab of the second battery cell.

Abstract: A battery cell that includes a plurality of anodes and a plurality of cathodes is provided. The battery cell has a pouch laminate disposed over the plurality of anodes and the plurality of cathodes along with a temperature control mechanism centrally located within the pouch laminate. The temperature control mechanism is disposed between anodes of the plurality of anodes and cathodes of the plurality of cathodes such that the temperature control mechanism is centrally located within battery cell. The temperature control mechanism can regulate a temperature of the battery cell while also regulate an amount of pressure applied to the plurality of anodes and cathodes. The temperature control mechanism can include passageways through which heat transfer fluid can pass that be used to regulate the temperature and the pressure.

Abstract: A rechargeable battery cell a casing and first and second electrode materials separately positioned in the casing. A mechanical impulse element is positioned to mechanically move and dislodge gas bubbles from at least one of the first and second electrode materials in response to activation. In some embodiments the mechanical impulse element can include a vibratory piezoelectric element. In other embodiments, a gas vent in the battery cell can be used to release dislodged gas bubbles.

Abstract: Systems, techniques, and computer-implemented processes for acoustic signal based improvements to one or more process steps in the manufacture of battery cells. Information gathered based on an acoustic signal based analysis in one process step can be used in one or more other process steps using any suitable combination of feedback and/or feedforward of the acoustic signal based analysis. Such feedback and/or feedforward can improve the overall quality of battery cells produced using the manufacturing process, efficiency/cost of the manufacturing process, improvement in yield/reduction in wastage of the battery cells produced using the manufacturing process and/or improvements in individual process steps.

Abstract: Systems, methods, and computer-readable media are provided for controlling a battery manufacturing process. For instance, signal based analysis that can include audio signal analysis can be performed during a first process step of a battery manufacturing process. Based on the signal based analysis, at least one adjustment can be determined for a second process step of the battery manufacturing process. Information associated with the at least one adjustment can be provided to the second process step.

Abstract: Systems, techniques, and computer-implemented processes are provided for acoustic signal based analysis of thin-films, electrode coatings, and other components of batteries. Data analytics on signals obtained by ultrasound excitation of materials is used to analyze electrode coating parameters, analyzing separators, and other battery components. Using the disclosed techniques in battery manufacturing and production can lead to reduction in wastage of damaged/scrapped battery cells and shorten production time.

Abstract: Provided are liquid treatment systems (e.g., water desalinization systems, water softening systems, water purification systems), system components, methods of fabricating components and systems, and methods of operating the systems. A liquid treatment system may include a first electrode and a second electrode. During operation of the system, the treated liquid may flow between and, in some embodiments, through these electrodes and release contaminants that are electrolytically deposited on these electrodes. At least one electrode may include a non-conductive support and an active structure mechanically supported by the non-conductive support and a conductive assist structure disposed between the active structure and the non-conductive support. The non-conductive support may be a polymer film, such as polyethylene terephthalate (PET) film. Unlike conventional metallic substrates, the non-conductive support is more resistant to corrosion.

Abstract: Provided are battery packs and methods of fabricating these battery packs. A battery pack includes multiple battery cells stacked together along the center axis of the pack and electrically interconnected with each other by, for example, direct physical contact. The connections may be easily separable by pulling one cell away from another. The stack is enclosed by a pack housing that includes two ends caps and a middle section extending between and supporting the two end caps. One end cap may be removable for accessing to the stack. Furthermore, the end caps may be used to form electrical connections to the battery pack. The middle section of the pack housing may be used for thermal management of the pack. For example, the middle section may include a compartment for a heat transfer material for adding or removing the heat from the battery cells during their operation.

Abstract: Disclosed herein are lithium or lithium-ion batteries that employ an aluminum or aluminum alloy current collector protected by conductive coating in combination with electrolyte containing aluminum corrosion inhibitor and a fluorinated lithium imide or methide electrolyte which exhibit surprisingly long cycle life at high temperature.

Abstract: Provided are methods of passivating active materials for use in electrochemical cells as well as active materials and cell components prepared using such methods. Active material particles may be combined with passivating material particles, and this combination may be mixed together using high shear mixing. The mixed combination may not include any solvents or binders. As such, drying mixing may be performed on this combination of the active material particles and passivating material particles. A passivating layer is formed on the active material particles during mixing. This passivating layer later prevents direct contact between the active material particles and the electrolyte while still allowing ionic exchange. Furthermore, the passivating layer may increase electronic conductivity between active material particles in an electrode. The passivating layer may be mechanically bonded to the surface of the active material particles rather than chemically bonded.

Abstract: Disclosed herein are lithium or lithium-ion batteries that employ an aluminum or aluminum alloy current collector protected by conductive coating in combination with electrolyte containing aluminum corrosion inhibitor and a fluorinated lithium imide or methide electrolyte which exhibit surprisingly long cycle life at high temperature.

Abstract: The present invention provides a lithium-ion electrochemical cell comprising an ionic liquid electrolyte solution and a positive electrode having a carbon sheet current collector.

Abstract: The present invention provides electrochemical cells and batteries having one or more electrically conductive tabs and carbon sheet current collectors, where the tabs are connected to the carbon sheet current collectors; and methods of connecting the tabs to the carbon based current collectors. In one embodiment, the electrically conductive tabs are metallic tabs.

Abstract: Disclosed herein are lithium or lithium-ion batteries that employ an aluminum or aluminum alloy current collector protected by conductive coating in combination with electrolyte containing aluminum corrosion inhibitor and a fluorinated lithium imide or methide electrolyte which exhibit surprisingly long cycle life at high temperature.

Abstract: The present invention provides electrochemical cells and batteries having one or more electrically conductive tabs and carbon sheet current collectors, where the tabs are connected to the carbon sheet current collectors; and methods of connecting the tabs to the carbon based current collectors. In one embodiment, the electrically conductive tabs are metallic tabs.

Abstract: Disclosed herein are lithium or lithium-ion batteries that employ an aluminum or aluminum alloy current collector protected by conductive coating in combination with electrolyte containing aluminum corrosion inhibitor and a fluorinated lithium imide or methide electrolyte which exhibit surprisingly long cycle life at high temperature.

Abstract: Disclosed herein are lithium or lithium-ion batteries that employ an aluminum or aluminum alloy current collector protected by conductive coating in combination with electrolyte containing aluminum corrosion inhibitor and a fluorinated lithium imide or methide electrolyte which exhibit surprisingly long cycle life at high temperature.

Abstract: The present invention provides a lithium-ion electrochemical cell comprising an ionic liquid electrolyte solution and a positive electrode having a carbon sheet current collector.

Abstract: The present invention provides electrochemical cells and batteries having one or more electrically conductive tabs and carbon sheet current collectors, where the tabs are connected to the carbon sheet current collectors; and methods of connecting the tabs to the carbon based current collectors. In one embodiment, the electrically conductive tabs are metallic tabs.

Abstract: The present invention provides a protection circuit disposed in a lithium-ion cell for protection of the lithium-ion cell. The protection circuit includes a first protection module, a second protection module, an integrated circuit module, a thermal sensor or thermocouple, a switch, a fuse and/or a resistor.