Abstract: An electrical energy store for a motor vehicle has multiple battery cells oriented in the same direction. Each battery cell has two parallel sides and a cell terminal with one plus pole and one minus pole. The battery cells are in the form of pouch cells between which there is arranged a cooling foil that comprises graphite particles and a cooling duct connected in heat-transmitting fashion to the cell terminal and to the foil.
Type:
Grant
Filed:
December 9, 2013
Date of Patent:
November 13, 2018
Assignee:
Dr. Ing. h.c. F. Porsche Aktiengesellschaft
Abstract: A membrane-electrode assembly (MEA) for fuel cells includes an electricity-generating array including an anode, a cathode, and an electrolyte membrane. A subgasket array includes an anode subgasket surrounding a periphery of the anode and a cathode subgasket surrounding a periphery of the cathode. A junction array includes a polar junction and a nonpolar junction surrounding a periphery of the electrolyte membrane and attaching the anode subgasket and the cathode subgasket to each other.
Type:
Grant
Filed:
June 18, 2014
Date of Patent:
October 16, 2018
Assignee:
HYUNDAI MOTOR COMPANY
Inventors:
Bo Ki Hong, Kook Il Han, Ji Yeon Park, Byeong Heon Jeong, Sang Hyun Cho, Chae Won Lim
Abstract: An assembly has a plurality of fuel cell stacks with at least one wall. At least one manifold portion is provided outwardly of the at least one wall of each of the fuel cell stacks. The at least one manifold portion for a pair of the plurality of fuel cell stacks is on facing surfaces with an intermediate wall between the at least one of the manifold portions on the pair of the plurality of fuel cell stacks. A method of forming an assembly of a plurality of fuel cell stacks is also disclosed.
Type:
Grant
Filed:
February 4, 2014
Date of Patent:
October 9, 2018
Assignee:
Hamilton Sundstrand Corporation
Inventors:
Jonathan Daniel O'Neill, Guillaume Michael Kurczko Brousseau
Abstract: A method of forming a flexible microbattery and battery is provided. The method including: forming a film with a cavity therein; applying a first outer flexible substrate to a first side of the film; applying a second outer flexible substrate to a second opposite side of the film, wherein a cathode, an anode, a separator and an electrolyte are located within the cavity and the film provides a first seal about the cathode, the anode, the separator and the electrolyte and wherein the first seal extends between the first outer flexible substrate and the second outer flexible substrate; cutting a trench through the first outer flexible substrate, the film and the second outer flexible substrate after the first seal is formed; disposing a curable material in the trench; curing the curable material to provide a second seal, wherein the first seal is located between the cavity and the second seal.
Type:
Grant
Filed:
December 30, 2015
Date of Patent:
September 18, 2018
Assignee:
INTERNATIONAL BUSINESS MACHINES CORPORATION
Inventors:
Paul S. Andry, Joana S. Branquinho Teresa Maria, Jeffrey Gelorme, Jae-Woong Nah, Adinath S. Narasgond, Bucknell C. Webb
Abstract: Methods for fabricating an interconnect for a fuel cell stack that include providing a protective layer over at least one surface of an interconnect formed by powder pressing pre-alloyed particles containing two or more metal elements and annealing the interconnect and the protective layer at elevated temperature to bond the protective layer to the at least one surface of the interconnect.
Type:
Grant
Filed:
January 8, 2015
Date of Patent:
September 18, 2018
Assignee:
BLOOM ENERGY CORPORATION
Inventors:
Avinash Verma, Ravi Oswal, Brandon Dawson, Brian Bollinger, Harald Herchen, Tad Armstrong
Abstract: To provide technology that is capable of inhibiting a decrease in starting properties of a pump in a low-temperature environment. A fuel cell system is equipped with a control unit, a fuel cell, and a pump. The control unit acquires the temperature of the fuel cell as a parameter expressing the temperature of the pump while operation of the fuel cell is stopped. The control unit rotates rotation body of the pump when it is detected that the temperature of the pump is a threshold value or less set within a predetermined range lower than the freezing point based on the detected temperature of the fuel cell.
Abstract: A crash elements structure in an electric vehicle for reducing the damage to a vehicle battery caused by a vehicle collision. The crash elements structure may be situated near a corner of the vehicle battery, and may channel energy received by the vehicle away from the vehicle battery. The crash elements structure includes an upper structure positioned above and laterally offset from a lower structure, and a “W” structure that interfaces between the vehicle battery and the upper and lower structures. The upper and lower structures include several shells coupled together to form hexagonal apertures. The specific arrangement of the shells and the upper and lower structures influences the transfer of energy through the crash elements structure in the event of a collision.
Type:
Grant
Filed:
August 30, 2017
Date of Patent:
August 7, 2018
Assignee:
Thunder Power New Energy Vehicle Development Company Limited
Abstract: A crash elements structure in an electric vehicle for reducing the damage to a vehicle battery caused by a vehicle collision. The crash elements structure may be situated near a corner of the vehicle battery, and may channel energy received by the vehicle away from the vehicle battery. The crash elements structure includes an upper structure positioned above and laterally offset from a lower structure, and a “W” structure that interfaces between the vehicle battery and the upper and lower structures. The upper and lower structures include several shells coupled together to form hexagonal apertures. The specific arrangement of the shells and the upper and lower structures influences the transfer of energy through the crash elements structure in the event of a collision.
Type:
Grant
Filed:
December 12, 2017
Date of Patent:
August 7, 2018
Assignee:
Thunder Power New Energy Vehicle Development Company Limited
Abstract: An electrode for electrochemical cells comprising an electrically conductive surface; an electrically conductive porous membrane having a first surface and an opposed outer second surface separated from the first surface by a thickness dimension defined by the length of a vector normal to the first surface and extending to where the vector intersects the second surface of an uncompressed portion of membrane, the membrane first surface is adjacent the electrically conductive surface and not more than 10% of the membrane second surface includes an area comprising at least one of; being compressed with sufficient sustained force toward and embedded into the electrically conductive surface so that electrical resistance between a location within a compressed outer second surface and the conducting surface is less than 10 micro-ohm and wherein no point within an uncompressed area is further from a nearest compressed area than three times the defined thickness dimension of the membrane.
Abstract: The electrode (10) includes an electrically conductive surface (14) with a galvanic pellicle, or carbon nanotube mat (18), secured to the conductive surface (14). The pellicle (18) has a first surface (20) and an opposed outer surface (22) and defines an uncompressed thickness dimension (24) as a longest length of a straight axis (26) extending from the first surface (20) to the outer surface (22) of an uncompressed section (28) of the galvanic pellicle (18). Uncompressed sections (28) of the pellicle are defined between connected areas (30) and continuous connected areas (32) of the pellicle (18). Any point (35) within any uncompressed section (28) is no more distant from one of a nearest connected area (30) and/or a nearest segment (34) of a continuous connected area (32) than about ten times the uncompressed thickness dimension (24) of the pellicle (18), thereby achieving significantly reduced contact resistance.
Abstract: An example battery pack spacer includes a base and at least one rib extending laterally from the base. The rib is configured to turn flow of a coolant through a battery pack.
Type:
Grant
Filed:
February 4, 2014
Date of Patent:
May 29, 2018
Assignee:
Ford Global Technologies, LLC
Inventors:
Evan Mascianica, Saravanan Paramasivam, LeeAnn Wang, Kimberley King, Daniel Miller, James Lawrence Swoish
Abstract: The invention provides an electrochemical cell based on a new chemistry for a flow battery for large scale, e.g., gridscale, electrical energy storage. Electrical energy is stored chemically at an electrochemical electrode by the protonation of small organic molecules called quinones to hydroquinones. The proton is provided by a complementary electrochemical reaction at the other electrode. These reactions are reversed to deliver electrical energy. A flow battery based on this concept can operate as a closed system. The flow battery architecture has scaling advantages over solid electrode batteries for large scale energy storage.
Type:
Grant
Filed:
August 11, 2015
Date of Patent:
May 8, 2018
Assignee:
President and Fellows of Harvard College
Inventors:
Brian Huskinson, Michael Marshak, Michael J. Aziz, Roy G. Gordon, Theodore A. Betley, Alan Aspuru-Guzik, Suleyman Er, Changwon Suh
Abstract: A device comprising: a lithium sulfur redox flow battery comprising an electrolyte composition comprising: (i) a dissolved Li2Sx electroactive salt, wherein x?4; (ii) a solvent selected from dimethyl sulfoxide, tetrahydrofuran, or a mixture thereof; and (iii) a supporting salt at a concentration of at least 2 M, as measured by moles of supporting salt divided by the volume of the solvent without considering the volume change of the electrolyte after dissolving the supporting salt.
Type:
Grant
Filed:
October 31, 2014
Date of Patent:
April 24, 2018
Assignee:
Battelle Memorial Institute
Inventors:
Jie Xiao, Jun Liu, Huilin Pan, Wesley A. Henderson
Abstract: A lithium-air battery cathode having increased mesopore and macropore volume and methods of making the cathode are provided. In at least one embodiment, a plurality of mesopores is present in the cathode having a porosity of 1 to 70 percent. In another embodiment, a plurality of macropores are present in the cathode having a porosity of 5 to 99 percent. In one embodiment, the mesopores and macropores are imprinted using a sacrificial material. In another embodiment, the mesopores and macropores are imprinted by applying a template. In another embodiment, the mesopores and macropores are formed by coating cathode material onto a porous substrate.
Type:
Grant
Filed:
March 8, 2013
Date of Patent:
April 17, 2018
Assignee:
Ford Global Technologies, LLC
Inventors:
Venkataramani Anandan, Andrew Robert Drews
Abstract: A Nickel iron battery using a mono-block housing that has cells with leak-proof intercell connections. The intercell connections use compressed grommets to prevent fluid transfer between the cells. Each cell generates a charge that can be connected in series or parallel as required. The cells use an electrode plate that enables a manufacturing process which yields higher efficiency, higher throughput, and significantly lower battery cost. The anode composition of the cells has iron powder to increase cathode utilization, therefore lowering cathode material usage and lowering production cost.
Type:
Grant
Filed:
June 18, 2014
Date of Patent:
April 10, 2018
Assignee:
Landmark Battery Innovations, Inc.
Inventors:
Viet Vu, Ajoy Datta, Lucien Paul Fontaine, Andrew James Parth
Abstract: A lithium-iron disulfide battery with improved high temperature performance is disclosed. The separator characteristics are deliberately selected to be compatible with the electrolyte at the intended temperature. Additional or alternative modifications can be made in the form of a scaffold or laminated structure. A preferred polymer for such separators is polyimide.
Type:
Grant
Filed:
October 12, 2012
Date of Patent:
March 13, 2018
Assignee:
Energizer Brands, LLC
Inventors:
Mark A. Schubert, Matthew T. Wendling, Weiwei Huang
Abstract: The invention concerns an electrical energy storage assembly (capacitor or battery) comprising: -an envelope (20) including: *at least one lateral wall (21), and *an open end, -an electrochemical element (30) intended to be contained in the envelope (20) and -at least one cover (40) intended to be positioned at the open end of the envelope (20), each cover (40) including: *a cover wall (41, 45) intended to cover the open end of the envelope (20), *a lateral face (42, 43) at the periphery of the cover wall (41, 45) and intended to be facing the lateral wall (21) of the envelope (20), -at least one electrically insulating elastic annular ring (50) intended to be positioned between the lateral wall (21) of the envelope (20) and the lateral wall (42, 43) of the cover (40).
Abstract: Disclosed is a method of preparing a positive active material for a rechargeable lithium battery that includes mixing an iron source including a carbon source, a lithium source, and a phosphoric acid source to form a positive active material precursor for a rechargeable lithium battery, the positive active material precursor including a lithium iron phosphate precursor and a carbon precursor; pulverizing the positive active material precursor for a rechargeable lithium battery; and heat-treating the pulverized positive active material precursor for a rechargeable lithium battery.
Abstract: According to one embodiment, there is provided a nonaqueous electrolyte battery. The negative electrode of the battery includes a negative electrode active material which can absorb and release lithium ions at a negative electrode potential of 0.4 V (V.S. Li/Li+) or more. The battery satisfying the following equations (I) and (II): 1?Q2/Q1??(I) 0.5?C/A?0.