Landisville, PA, United States
Landisville, PA, United States

Time filter

Source Type

Systems and methods for performing low voltage charging of a high voltage, series-connected string of battery modules are disclosed. A battery pack system may include a plurality of battery cells, including one or more groups of battery cells coupled in parallel. A processor may be configured to select a sub-group of battery cells from a group of battery cells for charging separately from other battery cells of the selected group of battery cells. The group of battery cells may be reconfigured to allow charging of the sub-group of battery cells separate from the other battery cells. The sub-group of battery cells may be charged, and then the group of battery cells may be reconfigured to allow operation of the sub-group of battery cells with the other battery cells. During charging, the sub-group of battery cells may be unavailable but other battery cells may continue to discharge.


Patent
Electron Energy Corporation | Date: 2015-06-26

A battery pack system module may include a module bypass switch for allowing charge current to bypass the battery pack system module. A charge switch and a discharge switch may be coupled with the module bypass switch. When other battery pack system modules are coupled in series with the module, balancing between modules may be achieved by allowing charge current to bypass the unbalanced modules and charge other modules. For example, when an unbalanced module is at a higher level of charge than other modules, a charge switch and a discharge switch in the unbalanced module de-activate and a module bypass switch activates to allow charge current to rapidly bring other modules into balance. The discharge switch and the charge switch allow the charging current to bypass the unbalanced module creating little or no additional heat dissipation.


Patent
Electron Energy Corporation | Date: 2014-11-24

Laminated, composite, permanent magnets comprising layers of permanent magnets separated by layers of dielectric or high electrical resistivity substances, wherein the laminated magnets indicate increased electrical resistivity compared to a magnet which does not include the dielectric or high electrical resistivity material layers.


Grant
Agency: Department of Energy | Branch: | Program: SBIR | Phase: Phase I | Award Amount: 149.67K | Year: 2016

This Small Business Innovation Research project proposes the design, construction and testing of a tunable focusing quadrupole and defocusing permanent magnet system for particle accelerators. The main application of the proposed system will be the new concept electron accelerator proposed to be constructed for electron ion collision research. The new concept is a non-scaling Fixed Field Alternating Gradient (NS-FFAG) accelerator, and the use of the permanent magnets instead of electromagnets will drastically reduce the cost of building the accelerator, the operational costs, and allow for a more compact design. Phase I part of the Fast–Track project will be focused on the magnetic design optimization, mechanical stress and cost analysis of a doublet cell consisting of a focusing quadrupole and defocusing magnet. Based on the results from Phase I effort and down-selection of the most optimum design, the full scale prototype of the cell will be constructed during Phase II, with a rigorous feedback process between the magnetic field strength test data, the field gradient mapping and subsequent design changes in order to reach the desired magnetic field and dimensional parameters. After testing of full scale prototype, a series of cells will be constructed, to test the possible field interactions between them. Non-scaling Fixed Field Alternating Gradient accelerators have the potential to bring a paradigm change in accelerator technology, replacing both cyclotrons and synchrotrons for many existing applications in science, and allowing the development of applications in completely new areas. Due to the compact design and low cost enabled by the permanent magnet based system, these potential applications include: X-ray sources, industrial high power Free Electron Laser as a source for EUV lithography, detection of special nuclear materials, astrophysical measurements, important physics experiments including dark matter and dark energy searches. Similar NS- FFAG systems could be also used for hadron therapy in cancer treatment. This Small Business Innovation Research Fast-Track project is to design, construct and test a focusing quadrupole and defocusing permanent magnet system for a new particle accelerator concept. The technology will result in a drastic manufacturing and operational cost reduction, with cutting-edge applications in science, industry, cancer therapy and more.


Grant
Agency: Department of Energy | Branch: | Program: SBIR | Phase: Phase II | Award Amount: 998.30K | Year: 2016

This Small Business Innovation Research project proposes the design, construction and testing of a tunable focusing quadrupole and defocusing permanent magnet system for particle accelerators. The main application of the proposed system will be the new concept electron accelerator proposed to be constructed for electron ion collision research. The new concept is a non-scaling Fixed Field Alternating Gradient (NS-FFAG) accelerator, and the use of the permanent magnets instead of electromagnets will drastically reduce the cost of building the accelerator, the operational costs, and allow for a more compact design. Phase I part of the Fast–Track project will be focused on the magnetic design optimization, mechanical stress and cost analysis of a doublet cell consisting of a focusing quadrupole and defocusing magnet. Based on the results from Phase I effort and down-selection of the most optimum design, the full scale prototype of the cell will be constructed during Phase II, with a rigorous feedback process between the magnetic field strength test data, the field gradient mapping and subsequent design changes in order to reach the desired magnetic field and dimensional parameters. After testing of full scale prototype, a series of cells will be constructed, to test the possible field interactions between them. Non-scaling Fixed Field Alternating Gradient accelerators have the potential to bring a paradigm change in accelerator technology, replacing both cyclotrons and synchrotrons for many existing applications in science, and allowing the development of applications in completely new areas. Due to the compact design and low cost enabled by the permanent magnet based system, these potential applications include: X-ray sources, industrial high power Free Electron Laser as a source for EUV lithography, detection of special nuclear materials, astrophysical measurements, important physics experiments including dark matter and dark energy searches. Similar NS- FFAG systems could be also used for hadron therapy in cancer treatment. This Small Business Innovation Research Fast-Track project is to design, construct and test a focusing quadrupole and defocusing permanent magnet system for a new particle accelerator concept. The technology will result in a drastic manufacturing and operational cost reduction, with cutting-edge applications in science, industry, cancer therapy and more.


Patent
Electron Energy Corporation | Date: 2014-06-26

The remaining capacity of a power source, such as a battery, may be monitored with a microprocessor, such as by counting electrons flowing through the power source. The microprocessor may measure electrons passing through the battery and sleep for predetermined periods, waking up to determine an updated capacity of the battery. The remaining capacity may be communicated to remote users through a network and displayed in an executive dashboard. In one example, the updates regarding remaining capacity may be pushed to users through a graphical user interface or a web page.


A battery pack system module may include a module bypass switch for allowing charge current to bypass the battery pack system module. The module bypass switch may be activated to divert charging current from the battery pack system module to other battery pack system modules. The charging current may be diverted to bring other battery pack system modules into balance with the battery pack system module. That is, to bring the state of charge of all battery pack system modules into coarse balance. When the module bypass switch is activated, charging current through the module bypass switch may be monitored by a current sensing device such as a current sensing resistor. A microprocessor may receive information about the bypass current level and use the information to determine when to de-activate the module bypass switch. Sensing current through a module bypass switch allows more accurate and quicker inter-module balancing.


Patent
Electron Energy Corporation | Date: 2014-06-30

Dielectric rare earth fluorides are blended with rare earth magnet powders to produce high-resistivity fluoride composite rare earth magnets.


Patent
Electron Energy Corporation | Date: 2015-04-10

An apparatus and method are described for spreading heat, such as generated by an internal short, around battery cells when multiple battery cells are attached together in battery pack module. A tri-layer structure may be placed between battery cells, the tri-layer structure including heat spreading materials and an insulating material. The heat-spreading materials may be graphene sheets that preferentially conduct heat along one dimension. The insulating material may be polyimide. The tri-layer structure may transfer heat along a preferred direction to a location where the heat may be safely distributed or dissipated.


Patent
Electron Energy Corporation | Date: 2015-10-21

An apparatus and method are described for spreading heat, such as generated by an internal short, around battery cells when multiple battery cells are attached together in battery pack module. A tri-layer structure may be placed between battery cells, the tri-layer structure including heat spreading materials and an insulating material. The heat-spreading materials may be graphene sheets that preferentially conduct heat along one dimension. The insulating material may be polyimide. The tri-layer structure may transfer heat along a preferred direction to a location where the heat may be safely distributed or dissipated.

Loading Electron Energy Corporation collaborators
Loading Electron Energy Corporation collaborators