Abstract:
A multi-layer cathode coating for positive electrode of a rechargeable electrochemical cell (or secondary cell) (such as a lithium-ion secondary battery) and a secondary battery including a cathode having a multi-layer cathode coating. Multi-layer cathode coatings containing blends of one or more cathode active materials in certain weight ratios thereof.
Abstract:
A power distribution unit for a vehicle including an enclosure and power distributing means for distributing electrical power between a battery and a load application, the enclosure including an external casing and an internal casing having a faceplate and a mounting plate, the mounting plate having upper dielectric partitions protruding upward from a top face of the mounting plate, and the power distributing means being mounted on the mounting plate, wherein the upper dielectric partitions are configured to both maintain a separation between different voltage groups and define an insulating barrier between components of the power distributing means, the internal cartridge is configured to be inserted into the external casing, and the enclosure is configured to be sealed from an external environment.
Abstract:
A multi-layer cathode coating for positive electrode of a rechargeable electrochemical cell (or secondary cell) (such as a lithium-ion secondary battery) and a secondary battery including a cathode having a multi-layer cathode coating. Multi-layer cathode coatings containing blends of one or more cathode active materials in certain weight ratios thereof.
Abstract:
A power distribution unit for a vehicle including an enclosure and power distributing means for distributing electrical power between a battery and a load application, the enclosure including an external casing and an internal casing having a faceplate and a mounting plate, the mounting plate having upper dielectric partitions protruding upward from a top face of the mounting plate, and the power distributing means being mounted on the mounting plate, wherein the upper dielectric partitions are configured to both maintain a separation between different voltage groups and define an insulating barrier between components of the power distributing means, the internal cartridge is configured to be inserted into the external casing, and the enclosure is configured to be sealed from an external environment.
Abstract:
A vent assembly for a battery or a electrochemical cell may include a vent body configured to connect to a battery casing or a electrochemical cell body, a flame arrester and/or a pressure valve disposed in the vent body, a membrane disposed in the vent body between a vent opening of the battery or the electrochemical cell and the flame arrester and/or the pressure valve, and that is configured to shield the flame arrester and/or the pressure valve from electrolyte solution of the battery or the electrochemical cell, and a seal disposed between the vent body and the membrane. Also, a battery including a vent assembly.
Abstract:
The present disclosure relates to blended cathode materials for use as a positive electrode material of a rechargeable electrochemical cell (or secondary cell) (such as a lithium-ion secondary battery) and also relates to a secondary battery including a cathode having the blended cathode materials. In particular, disclosed are blends of lithium vanadium fluorophosphate (LVPF) or a derivative thereof with one or more conventional cathode active materials in certain weight ratios thereof.
Abstract:
Provided is a modular, scalable and decentralized high voltage battery system that employs signaling and communications between battery modules of the system without a central battery management controller. Via signaling mechanisms, the individual battery modules of the system can perform precharging, discharging, charging, and safety functions in a manner that is extensible regardless of a number of battery modules in the system in series and parallel and in a manner that does not require significant operator intervention.
Abstract:
Systems and methods for fire suppression, a fire suppression system including a container configured to receive frames, each of the frames including battery modules; a pipe system including at least one vertically extending pipe, the at least one vertically extending pipe configured to be provided between a respective two of the frames and configured to supply suppressant to at least one of the battery modules of each of the respective two of the frames via slots of the vertically extending pipe; at least one tank connected to the pipe system and configured to store the suppressant; at least one pump configured to recirculate the suppressant to the pipe system or a tank of the at least one tank; and an inlet body configured to connect with a suppressant source, that is external to the container, to provide new suppressant into the pipe system or the at least one tank.
Abstract:
A method may include activating two or more bypassable battery modules in succession through a current-limiting circuit to precharge an application bus from a power source.
Abstract:
An explosion-proof valve electrical disconnect assembly incorporates a vent valve contact disk which seals the can of a compact electrochemical cell and which faces a juxtaposed stripper contact disk welded at the center by a weld nugget at a weld point, forming a rigid, preferably increased thickness, mass. The underlying stripper contact disk is weakened about the weld point, surrounding the weld nugget to ensure pull-through of the stripper contact disk portion immediately adjacent to the weld connection to effect initial electrical separation of the two contact disks. Subsequent rupture of the vent valve contact disk releases high pressure gas internally from the cell. A semi-rigid assembly cup may support a rigid grommet functioning to sandwich the vent valve contact disk and the stripper contact disk facilitated by crimping of the can top about a deformable L-shaped cross-section annular assembly cup. A current responsive PTC element forms a second circuit breaker independent of the first mechanical circuit breaker formed by the two contact disks.