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公开(公告)号：US10950899B2
公开(公告)日：2021-03-16
申请号：US15994570
申请日：2018-05-31
申请人： NIO USA, Inc.
发明人： Marc W. Juzkow , Alexander J. Smith
摘要： An energy storage device and structure for energy storage cells is provided that includes a plurality of energy storage cells, each of the energy storage cells having side surface areas. The plurality of energy storage cells are arranged in a pattern with each energy storage cell being spaced a specified distance apart from one another. An expandable material is adhered, by an adhesive backing, to at least a portion of the side surface areas of one or more of the energy storage cells, and the expandable material expands within and at least part of the specified distance.
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公开(公告)号：US20210070276A1
公开(公告)日：2021-03-11
申请号：US16563693
申请日：2019-09-06
申请人： NIO USA, Inc.
发明人： Alexander J. Smith
摘要： A power supply device includes an energy storage device that supplies a first voltage, and a converter that converts a second voltage into the first voltage. The power supply device includes a first switching element coupled to the converter and at least one load of the vehicle, and a second switching element coupled to the first switching element and the at least one load. The power supply device includes a controller that determines a failure condition for the converter or the energy storage device, and controls, in response to determining the failure condition, the first switching element and the second switching element such that i) the converter is disconnected from or connected to the at least one load, and ii) the energy storage device is disconnected from or connected to the at least one load.
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公开(公告)号：US20210070191A1
公开(公告)日：2021-03-11
申请号：US16563630
申请日：2019-09-06
申请人： NIO USA, Inc.
发明人： Alexander J. Smith
摘要： A power supply device for a vehicle includes an energy storage device, and a converter coupled to an external power source and that converts a first voltage provided by the external power source into a second voltage. The power supply device includes at least one switching element coupled between the converter and the energy storage device, and a controller that monitors a charge level of the energy storage device while the vehicle is not in operation. The control controls switching of the at least one switching element based on the charge level to either i) connect the converter to the energy storage device to exit a sleep mode and enter a charge mode to charge the energy storage device with the second voltage, or ii) disconnect the converter from the energy storage device to exit the charge mode and enter the sleep mode.
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公开(公告)号：US10707471B2
公开(公告)日：2020-07-07
申请号：US15928707
申请日：2018-03-22
申请人： NIO USA, Inc.
摘要： Devices, methods, and systems for interconnecting all of the battery cells in a battery module from a single side of the battery cell and module are provided. The cell busbar system comprises a number of thin formed strips arranged to interconnect individual battery cells in a row together in series and each row in parallel along a length of the battery module. In particular, the cell busbar system may include two high voltage, or edge, strips and a number of cell-to-cell, or internal, strips electrically interconnected to the edge strips. All of the battery cells in the battery module may be oriented such that all of the positive terminals are facing the same direction. The interconnections between series-connected rows of cells, and parallel rows of series-connected rows, may all be made in substantially the same plane on a single side of the battery module.
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公开(公告)号：US10682920B2
公开(公告)日：2020-06-16
申请号：US15847168
申请日：2017-12-19
申请人： NIO USA, Inc.
发明人： Alexander J. Smith
摘要： Battery charging systems and the operations thereof are provided. The battery charging systems provide fast charging. The battery charging systems include a charging unit, a battery, a battery management system, and a number of sensors and battery monitors. The battery includes one or more cells. The battery charging systems include a fast-charge profile including a number of stages.
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公开(公告)号：US10608301B2
公开(公告)日：2020-03-31
申请号：US15689557
申请日：2017-08-29
申请人： NIO USA, Inc.
IPC分类号： H01M10/655 , H01M2/20 , H01M10/613 , H01M10/625 , H01M10/653 , H01M10/04 , H01M10/663
摘要： Methods and systems for creating a battery module. A battery cell can include a cooling device that cools a busbar and a power electronics package. To allow the cooling device to be attached to the busbar and allow the cooling device to cool both the power electronics and the busbar, the cooling device is mounted on the busbar with the busbar held between two portions of the cooling device and with the power electronics mounted on an opposite side of the cooling device from the busbar. The fluid or phase change material may then circulate through a cavity in the cooling device to cool both the power electronics and the busbar.
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公开(公告)号：US20190260005A1
公开(公告)日：2019-08-22
申请号：US15900079
申请日：2018-02-20
申请人： NIO USA, Inc.
摘要： A tapered busbar for an energy storage device is provided. The tapered busbar is configured to interconnect with a first row of series-connected energy storage cells in a battery module at a first end of the busbar. As the busbar tapers from a first cross-sectional area at the first end to a larger second cross-sectional area at a second opposite end, the busbar is configured to interconnect with sequentially additional electrically-parallel rows of series-connected energy storage cells. The tapered cross-sectional area of the busbar provides a substantially uniform current density at any point along the length of the busbar regardless of the number of rows of energy storage cells connected before or after the point.
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公开(公告)号：US20190067648A1
公开(公告)日：2019-02-28
申请号：US15692723
申请日：2017-08-31
申请人： NIO USA, Inc.
发明人： Austin L. Newman , Alexander J. Smith , Adam H. Ing , Rick Rajaie
摘要： Methods and systems provide for the manufacture of a cylindrical battery cell case that is changed from steel (or nickel-plated steel) to aluminum. With this change, spot welding the copper tab from the anode to the aluminum case will result in the copper and aluminum corroding over time—leading to early battery failure. To manufacture the battery with the aluminum case, one or more manufacturing changes are made including one or more of: 1. changing the polarity of the battery to spot weld the copper tab to a steel top of the battery; 2. coating the copper tab with a second material to prevent corrosion; and/or, 3. use a different welding method (e.g., a friction stir weld) to fuse the copper tab to the aluminum case.
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9.发明申请公开(公告)号：US20190067162A1
公开(公告)日：2019-02-28
申请号：US15689766
申请日：2017-08-29
申请人： NIO USA, Inc.
发明人： Adam H. Ing , Alexander J. Smith , Rick Rajaie
IPC分类号： H01L23/427
摘要： Methods and systems are disclosed for controlling heat within a junction box. The disclosure relates to the use of phase change materials to manage heat generation in a junction box of a vehicle.
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公开(公告)号：US11135934B2
公开(公告)日：2021-10-05
申请号：US16563630
申请日：2019-09-06
申请人： NIO USA, Inc.
发明人： Alexander J. Smith
摘要： A power supply device for a vehicle includes an energy storage device, and a converter coupled to an external power source and that converts a first voltage provided by the external power source into a second voltage. The power supply device includes at least one switching element coupled between the converter and the energy storage device, and a controller that monitors a charge level of the energy storage device while the vehicle is not in operation. The control controls switching of the at least one switching element based on the charge level to either i) connect the converter to the energy storage device to exit a sleep mode and enter a charge mode to charge the energy storage device with the second voltage, or ii) disconnect the converter from the energy storage device to exit the charge mode and enter the sleep mode.
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