Abstract: A system and method for identifying and responding to exceptional charge events of series-connected energy storage elements.

Abstract: An apparatus and method providing for detecting and responding to high voltage electrolysis within an electric vehicle battery enclosure to limit possible excessive thermal condition of the individual battery cells and modules. A microprocessor-implemented response system for high voltage electrolysis in a battery pack an evaluator to monitor, using the microprocessor, a high voltage electrolysis flag indicative of a possible high voltage electrolysis within an enclosure including a plurality of electrically-coupled battery modules storing energy for the battery pack and a coolant distribution system disposed among and electrically isolated from the plurality of battery modules; and a remediation system, coupled to the enclosure and responsive to the possible high voltage electrolysis when the evaluator detects a likelihood of the possible high voltage electrolysis, to decrease risks associated with the possible high voltage electrolysis when operated.

Abstract: An apparatus and method providing for detecting and responding to low voltage electrolysis within an electric vehicle battery detecting and responding to low voltage electrolysis within an electric vehicle battery enclosure to limit a possible hazard condition of battery enclosure. The present invention includes embodiments directed towards detection algorithms and apparatus for promoting the use of sensors (e.g., hydrogen, voltage, current, and immersion sensors) for the purpose of detecting low voltage electrolysis. Additionally, the present invention includes response processes and structures to address low voltage electrolysis.

Abstract: An apparatus and method providing for detecting and responding to low voltage electrolysis within an electric vehicle battery detecting and responding to low voltage electrolysis within an electric vehicle battery enclosure to limit a possible hazard condition of battery enclosure. A microprocessor-implemented response system for low voltage electrolysis in a battery pack, includes an evaluator to monitor, using the microprocessor, a low voltage electrolysis flag indicative of a possible low voltage electrolysis of fluid within an enclosure that generates a flammable gas including a plurality of electrically-coupled battery modules storing energy for the battery pack; and a remediation system, coupled to the enclosure and responsive to the possible low voltage electrolysis when the evaluator detects a likelihood of the possible low voltage electrolysis, to decrease risks associated with the possible low voltage electrolysis when the remediation system is active.

Abstract: An apparatus and method providing for detecting and responding to high voltage electrolysis within an electric vehicle battery enclosure to limit possible excessive thermal condition of the individual battery cells and modules. The present invention includes embodiments directed towards detection algorithms and apparatus for promoting the use of voltage, current, humidity, temperature, and pressure sensors for the purpose of detecting high voltage electrolysis. Additionally, the present invention includes response processes and structures to address high-voltage electrolysis.

Abstract: A battery cell design is disclosed that provides a predictable pathway through a portion of the cell (e.g., the cell cap assembly) for the efficient release of the thermal energy that occurs during thermal runaway, thereby reducing the chances of a rupture in an undesirable location. Furthermore the disclosed design maintains the functionality of the cell cap as the positive terminal of the cell, thereby having minimal impact on the manufacturability of the cell as well as its use in a variety of applications.