Patents by Inventor Per Onnerud
Per Onnerud has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 10396416Abstract: A material consisting of an insulating, ceramic-based matrix into which an endothermic gas-generating material is incorporated for the intended purpose of protecting electrical energy storage devices from cascading thermal runaway.Type: GrantFiled: May 21, 2015Date of Patent: August 27, 2019Assignee: Thermal Ceramics, Inc.Inventors: Ricky Edward Bowersock, Gary Eugene Gayman, Jason Peter Street, Tord Per Onnerud, Jay Jie Shi
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Publication number: 20170098806Abstract: A material consisting of an insulating, ceramic-based matrix into which an endothermic gas-generating material is incorporated for the intended purpose of protecting electrical energy storage devices from cascading thermal runaway.Type: ApplicationFiled: May 21, 2015Publication date: April 6, 2017Applicant: Thermal Ceramics, Inc.Inventors: Ricky Edward Bowersock, Gary Eugene Gayman, Jason Peter Street, Tord Per Onnerud, Jay Jie Shi
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Patent number: 9252399Abstract: A battery includes a cell casing that has recessed portion on a major surface of the casing, the recessed portion being substantially planar and bordering a remainder of the major surface at a ridge portion on each of one or two sides of the recessed portion, whereby the recessed portion, the ridge portions, and the remainder of the major surface cooperate under an increase of gauge pressure to cause a plane defined by a boundary between the ridge portions and the remainder of the major surface to move.Type: GrantFiled: June 14, 2010Date of Patent: February 2, 2016Assignee: Boston-Power, Inc.Inventors: Richard V. Chamberlain, II, Raymond G. Kairawicz, Jan-Roger Linna, Per Onnerud, Yanning Song
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Patent number: 9166206Abstract: A battery includes a cell casing that has recessed portion on a major surface of the casing, the recessed portion being substantially planar and bordering a remainder of the major surface at ridge portions on at least three sides of the recessed portion, whereby the recessed portion, the ridge portions, and the remainder of the major surface cooperate under an increase of gauge pressure to cause a plane defined by a boundary between the ridge portions and the remainder of the major surface to move.Type: GrantFiled: April 15, 2009Date of Patent: October 20, 2015Assignee: Boston-Power, Inc.Inventors: Raymond G. Kairawicz, Richard V. Chamberlain, II, Phillip E. Partin, Yanning Song, Per Onnerud
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Publication number: 20140154558Abstract: The methods in this disclosure allow for the identification, selection, and arrangement of cells, blocks, and modules in large scale battery systems, such as electric vehicle battery systems. An example embodiment of the present invention allows for the identification of the cells, blocks, and modules with a unique identifier or associated parameter (e.g., internal resistance contributions or capacity). Additionally, to form a block, cells may be selected from a group of capacity-range sorting bins. Based on a parameter of the cell, a pseudo-number generator may be also be used to select cells from an available inventory of cells as maintained in a cell database based. Cells may also be placed in a block for uniform effective cell impedance and even cell aging while minimizing overall block capacity degradation caused by cycling. Block capacities may also be computed based on a known average temperature gradient during operation.Type: ApplicationFiled: July 2, 2013Publication date: June 5, 2014Applicant: BOSTON-POWER, INC.Inventors: Per Onnerud, Jan-Roger Linna, John Warner, Chad Souza, Eckart Jansen
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Patent number: 8679670Abstract: A low pressure current interrupt device (CID) activates at a minimal threshold internal gauge pressure. Preferably, the CID includes a first conductive plate and a second conductive plate in electrical communication with the first conductive plate, the electrical communication between the first and the second conductive plates being interrupted at the minimal threshold internal gauge pressure. The first conductive plate can include a frustum having a first end and a second end, a base extending radially from a perimeter of the first end of the frustum, and an essentially planar cap sealing the second end of the frustum. The first end has a broader diameter than the second end, and the second conductive plate is in electrical contact with the essentially planar cap through a weld.Type: GrantFiled: November 15, 2011Date of Patent: March 25, 2014Assignee: Boston-Power, Inc.Inventors: Per Onnerud, Phillip E. Partin, Richard V. Chamberlain, II, Jan-Roger B. Linna, Mimmo Elia
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Publication number: 20140002942Abstract: A secondary lithium-ion battery employing a prismatic battery can includes a cathode that includes a mixture of lithium nickel cobalt manganese oxide and a lithium nickel cobalt oxide in a weight ratio of between about 0.20:0.80 and about 0.80:0.20, and a current interrupt device. The cathode and current interrupt device are attenuated to trigger the current interrupt device when a voltage of greater than about 4.2 volts and equal to or less than about 5.0 volts is applied to the secondary lithium battery.Type: ApplicationFiled: May 14, 2013Publication date: January 2, 2014Applicant: Boston-Power, Inc.Inventors: Yanning Song, Kenneth Avery, Richard V. Chamberlain, II, Per Onnerud
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Publication number: 20130278218Abstract: A circuit for balancing battery cells includes a plurality of resistors configured in parallel with the battery cells, and a plurality of switches configured in series with the resistors. A control circuit causes the switches to balance the battery cells based on detected voltage of the battery cells and based on past operation of the cells.Type: ApplicationFiled: March 8, 2013Publication date: October 24, 2013Inventors: Per Onnerud, Chad Souza, Mark Gerlovin, Phillip E. Partin, Richard V. Chamberlain, II, Eckart W. Jansen
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Patent number: 8483886Abstract: The methods in this disclosure allow for the identification, selection, and arrangement of cells, blocks, and modules in large scale battery systems, such as electric vehicle battery systems. An example embodiment of the present invention allows for the identification of the cells, blocks, and modules with a unique identifier or associated parameter (e.g., internal resistance contributions or capacity). Additionally, to form a block, cells may be selected from a group of capacity-range sorting bins. Based on a parameter of the cell, a pseudo-number generator may be also be used to select cells from an available inventory of cells as maintained in a cell database based. Cells may also be placed in a block for uniform effective cell impedance and even cell aging while minimizing overall block capacity degradation caused by cycling. Block capacities may also be computed based on a known average temperature gradient during operation.Type: GrantFiled: August 31, 2010Date of Patent: July 9, 2013Assignee: Boston-Power, Inc.Inventors: Per Onnerud, Jan-Roger Linna, John Warner, Chad Souza, Eckart Jansen
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Publication number: 20130017421Abstract: A battery system monitors the status of a battery and ensures safe conditions under a range of events adversely affecting the safety of the battery cells, the battery pack or enclosure, or a vehicle housing the battery. In response to the safety event, the battery system provides one or more responses to secure the battery, disconnect the battery, extinguish a fire, or maintain a safe temperature. Upon detecting the safety event, the a controller activates the safety device accordingly to ensure safe conditions.Type: ApplicationFiled: April 1, 2011Publication date: January 17, 2013Applicant: BOSTON-POWER, INC.Inventors: Per Onnerud, Curtis Martin, Mark Gerlovin, Phillip E. Partin, Chad Souza, Yanning Song, John Warner, Rui Frias, Geoffrey Kaiser, Eckart W. Jansen
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Publication number: 20120129019Abstract: A low pressure current interrupt device (CID) activates at a minimal threshold internal gauge pressure. Preferably, the CID includes a first conductive plate and a second conductive plate in electrical communication with the first conductive plate, the electrical communication between the first and the second conductive plates being interrupted at the minimal threshold internal gauge pressure. The first conductive plate can include a frustum having a first end and a second end, a base extending radially from a perimeter of the first end of the frustum, and an essentially planar cap sealing the second end of the frustum. The first end has a broader diameter than the second end, and the second conductive plate is in electrical contact with the essentially planar cap through a weld.Type: ApplicationFiled: November 15, 2011Publication date: May 24, 2012Inventors: Per Onnerud, Phillip E. Partin, Richard V. Chamberlain, II, Jan-Roger B. Linna, Mimmo Elia
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Patent number: 8084998Abstract: A storage voltage of a battery pack is controlled with control electronics. The storage voltage of a battery pack is sensed, and a discharge mechanism is triggered if the storage voltage is within a predetermined range of voltage, to thereby adjust the storage voltage of the battery pack to below the predetermined range of voltage, or if the storage voltage is at or above a predetermined voltage, to thereby adjust the storage voltage of the battery pack to below the predetermined voltage. Control electronics sense a storage voltage of a battery pack and trigger a discharge mechanism if the storage voltage is within a predetermined range of voltage, to thereby adjust the storage voltage of the battery pack to below the predetermined range of voltage, or if the storage voltage is at or above a predetermined voltage, to thereby adjust the storage voltage of the battery pack to below the predetermined voltage. The control electronics are coupled to an electronic device and a battery pack.Type: GrantFiled: December 31, 2009Date of Patent: December 27, 2011Assignee: Boston-Power, Inc.Inventors: Christina M. Lampe-Onnerud, Yanning Song, Richard V. Chamberlain, II, Per Onnerud
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Patent number: 8071233Abstract: A battery comprises a first terminal in electrical communication with a first electrode of the battery, a second terminal in electrical communication with a second electrode of the battery, a battery can electrically insulated from the first terminal, and at least one current interrupt device in electrical communication with the battery can. The battery can includes a cell casing and a lid which are in electrical communication with each other. At least a portion of the battery can is at least a component of the second terminal, or is electrically connected to the second terminal. The current interrupt device includes a first conductive plate in electrical communication with the second electrode, and a second conductive plate in electrical communication with the first conductive plate.Type: GrantFiled: June 22, 2007Date of Patent: December 6, 2011Assignee: Boston-Power, Inc.Inventors: Phillip E. Partin, Sherman H. Zeng, Per Onnerud, Yanning Song, Richard V. Chamberlain, II
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Patent number: 8012615Abstract: A low pressure current interrupt device (CID) activates at a minimal threshold internal gauge pressure in a range of, for example, between about 4 kg/cm2 and about 9 kg/cm2. Preferably, the CID includes a first conductive plate and a second conductive plate in electrical communication with the first conductive plate, the electrical communication between the first and the second conductive plates being interrupted at the minimal threshold internal gauge pressure. More preferably, the first conductive plate includes a frustum having a first end and a second end, a base extending radially from a perimeter of the first end of the frustum, and an essentially planar cap sealing the second end of the frustum. The first end has a broader diameter than the second end. More preferably, the second conductive plate is in electrical contact with the essentially planar cap through a weld. A battery, preferably a lithium-ion battery, comprises a CID as described above.Type: GrantFiled: October 12, 2010Date of Patent: September 6, 2011Assignee: Boston-Power, Inc.Inventors: Per Onnerud, Phillip E. Partin, Richard V. Chamberlain, II, Jan-Roger B. Linna, Mimmo Elia
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Publication number: 20110213509Abstract: The methods in this disclosure allow for the identification, selection, and arrangement of cells, blocks, and modules in large scale battery systems, such as electric vehicle battery systems. An example embodiment of the present invention allows for the identification of the cells, blocks, and modules with a unique identifier or associated parameter (e.g., internal resistance contributions or capacity). Additionally, to form a block, cells may be selected from a group of capacity-range sorting bins. Based on a parameter of the cell, a pseudo-number generator may be also be used to select cells from an available inventory of cells as maintained in a cell database based. Cells may also be placed in a block for uniform effective cell impedance and even cell aging while minimizing overall block capacity degradation caused by cycling. Block capacities may also be computed based on a known average temperature gradient during operation.Type: ApplicationFiled: August 31, 2010Publication date: September 1, 2011Applicant: Boston-Power, Inc.Inventors: Per Onnerud, Jan-Roger Linna, John Warner, Chad Souza, Eckart Jansen
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Publication number: 20110189512Abstract: A low pressure current interrupt device (CID) activates at a minimal threshold internal gauge pressure in a range of, for example, between about 4 kg/cm2 and about 9 kg/cm2. Preferably, the CID includes a first conductive plate and a second conductive plate in electrical communication with the first conductive plate, the electrical communication between the first and the second conductive plates being interrupted at the minimal threshold internal gauge pressure. More preferably, the first conductive plate includes a frustum having a first end and a second end, a base extending radially from a perimeter of the first end of the frustum, and an essentially planar cap sealing the second end of the frustum. The first end has a broader diameter than the second end. More preferably, the second conductive plate is in electrical contact with the essentially planar cap through a weld. A battery, preferably a lithium-ion battery, comprises a CID as described above.Type: ApplicationFiled: January 31, 2011Publication date: August 4, 2011Applicant: Boston-Power, Inc.Inventors: Per Onnerud, Phillip E. Partin, Richard V. Chamberlain, II, Jan-Roger B. Linna, Mimmo Elia
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Publication number: 20110059349Abstract: A lithium-ion battery includes a cathode that includes an active cathode material. The active cathode material includes a cathode mixture that includes a lithium cobaltate and a manganate spinel a manganate spinel represented by an empirical formula of Li(1+x1)(Mn1?y1A?y2)2?x2Oz1 or Li(1+x1)Mn2Oz1. The lithium cobaltate and the manganate spinel are in a weight ratio of lithium cobaltate:manganate spinel between about 0.9:0.1 to about 0.6:0.4. A lithium-ion battery pack employs a cathode that includes an active cathode material as described above. A method of forming a lithium-ion battery includes the steps of forming an active cathode material as described above; forming a cathode electrode with the active cathode material; and forming an anode electrode in electrical contact with the cathode via an electrolyte.Type: ApplicationFiled: September 13, 2010Publication date: March 10, 2011Applicant: Boston-Power, Inc.Inventors: Christina M. Lampe-Onnerud, Per Onnerud, Yanning Song, Richard V. Chamberlain, II
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Publication number: 20110049977Abstract: An electric vehicle power system including a battery system, a bus configured to transfer power to a motor drive, and a control circuit to selectively couple the battery to the bus. The control circuit is discharges capacitance of the bus to a chassis in response to a disconnect between the battery and the bus. Further, the control circuit measures impedance across the bus. As a result, the control circuit can monitor integrity of the bus and detect a fault, such as a short circuit or degraded bus insulation.Type: ApplicationFiled: August 31, 2010Publication date: March 3, 2011Applicant: Boston-Power, Inc.Inventors: Per Onnerud, Jan-Roger Linna, John Warner, Chad Souza
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Publication number: 20110033734Abstract: A battery includes a cell casing that has recessed portion on a major surface of the casing, the recessed portion being substantially planar and bordering a remainder of the major surface at a ridge portion on each of one or two sides of the recessed portion, whereby the recessed portion, the ridge portions, and the remainder of the major surface cooperate under an increase of gauge pressure to cause a plane defined by a boundary between the ridge portions and the remainder of the major surface to move.Type: ApplicationFiled: June 14, 2010Publication date: February 10, 2011Applicant: Boston-Power, Inc.Inventors: Richard V. Chamberlain, II, Raymond G. Kairawicz, Jan-Roger Linna, Per Onnerud, Yanning Song
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Publication number: 20110024396Abstract: A low pressure current interrupt device (CID) activates at a minimal threshold internal gauge pressure in a range of, for example, between about 4 kg/cm2 and about 9 kg/cm2. Preferably, the CID includes a first conductive plate and a second conductive plate in electrical communication with the first conductive plate, the electrical communication between the first and the second conductive plates being interrupted at the minimal threshold internal gauge pressure. More preferably, the first conductive plate includes a frustum having a first end and a second end, a base extending radially from a perimeter of the first end of the frustum, and an essentially planar cap sealing the second end of the frustum. The first end has a broader diameter than the second end. More preferably, the second conductive plate is in electrical contact with the essentially planar cap through a weld. A battery, preferably a lithium-ion battery, comprises a CID as described above.Type: ApplicationFiled: October 12, 2010Publication date: February 3, 2011Inventors: Per Onnerud, Phillip E. Partin, Richard V. Chamberlain, II, Jan-Roger B. Linna, Mimmo Elia