Abstract: A method of making an alkaline membrane fuel cell assembly is disclosed. The method may include: depositing a first catalyst layer on a first gas diffusion layer to form a first gas diffusion electrode; depositing a second catalyst layer one a second gas diffusion layer to form a second gas diffusion electrode; depositing a thin membrane on at least one of: the first catalyst layer and the second catalyst layer; joining together the first and second gas diffusion electrodes to form the alkaline fuel cell assembly such that the thin membrane is located between the first and second catalyst layers; and sealing the first and second gas diffusion layers, the first and second catalyst layers and the thin membrane from all sides.
Abstract: Disclosed are an antioxidant for a fuel cell having a high degree of dispersion and/or distribution and excellent antioxidant capability and a membrane-electrode assembly including the same. The antioxidant includes a metal oxide and a sulfur-containing organic compound, for example, an organic compound including a sulfinic acid anion group (R—SO2?), adsorbed on the metal oxide.
Type:
Grant
Filed:
December 14, 2020
Date of Patent:
February 28, 2023
Assignees:
Hyundai Motor Company, Kia Motors Corporation
Abstract: A battery module includes an output electrode base and an end plate, and the output electrode base is inserted into and fitted to the end plate. A first limiting element is disposed on the output electrode base, a limiting plate is disposed on the end plate, and the first limiting element is fitted to the limiting plate. A stop hole is provided in one of the output electrode base and the end plate, and a second limiting element is disposed on the other. The second limiting element is accommodated in the stop hole; and the second limiting element is fitted to the stop hole. The first limiting element is fitted to the limiting plate and the second limiting element is fitted to the stop hole to limit the relative movement of the output electrode base and the end plate.
Abstract: Disclosed are a deterioration estimation system for the fuel cell, a hydrogen supply system for a fuel cell including the same, and a hydrogen supply method for a fuel cell, the deterioration estimation system including a fuel cell which receives hydrogen gas and oxidizing gas respectively supplied to an anode side and a cathode side thereof to generate electrical power, a hydrogen supply line which is connected to the anode side of the fuel cell and supplies gas containing hydrogen gas to the fuel cell, a hydrogen supply valve which is located between the hydrogen supply line and a hydrogen tank, supplies, when opened, hydrogen gas stored in the hydrogen tank to the hydrogen supply line, and blocks the supply of the hydrogen gas when closed, and a deterioration estimating unit which estimates the deterioration state of the fuel cell, based on the opening and closing control of the hydrogen supply valve or a change in the pressure in the hydrogen supply line.
Type:
Grant
Filed:
May 18, 2020
Date of Patent:
February 14, 2023
Assignees:
HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION
Abstract: A lithium secondary battery includes a cathode formed of a cathode active material including a lithium metal oxide particle having a concentration gradient, and a coating formed on the lithium metal oxide particle, the coating including aluminum, titanium and zirconium, an anode, and a separator interposed between the cathode and the anode. The cathode active material includes 2,000 ppm to 4,000 ppm of aluminum, 4,000 ppm to 9,000 ppm of titanium and 400 ppm to 700 ppm of zirconium, based on the total weight of the cathode active material. The performance of the secondary battery may be maintained under a high temperature condition.
Abstract: A method of making a positive electrode includes forming a slurry of particles using an electrode formulation, a diluent, and oxalic acid, coating the slurry on a collector and drying the coating on the collector to form the positive electrode. The electrode formulation includes an electrode active material, a conductive carbon source, an organic polymeric binder, and a water soluble polymer. The diluent consists essentially of water.
Type:
Grant
Filed:
July 28, 2014
Date of Patent:
January 31, 2023
Assignee:
CPS TECHNOLOGY HOLDINGS LLC
Inventors:
Qiang Luo, Junwei Jiang, Yongkyu Son, Bernhard M. Metz, Patrick T. Hurley
Abstract: The present disclosure relates to a polymer electrolyte membrane for medium and high temperature, a preparation method thereof and a high-temperature polymer electrolyte membrane fuel cell including the same, more particularly to a technology of preparing a composite membrane including an inorganic phosphate nanofiber incorporated into a phosphoric acid-doped polybenzimidazole (PBI) polymer membrane by adding an inorganic precursor capable of forming a nanofiber in a phosphoric acid solution when preparing phosphoric acid-doped polybenzimidazole and using the same as a high-temperature polymer electrolyte membrane which is thermally stable even at high temperatures of 200-300° C. without degradation of phosphoric acid and has high ion conductivity.
Type:
Grant
Filed:
April 27, 2020
Date of Patent:
January 31, 2023
Assignee:
Korea Institute of Science and Technology
Inventors:
So Young Lee, Seung Ju Lee, Min Jae Lee, Hyun Seo Park, Jong Hyun Jang, Hyoung-Juhn Kim, Suk Woo Nam, Young Suk Jo, Yeong Cheon Kim
Abstract: Articles and methods including composite layers for protection of electrodes in electrochemical cells are provided. In some embodiments, the composite layers comprise a polymeric material and a plurality of particles.
Type:
Grant
Filed:
October 21, 2015
Date of Patent:
January 17, 2023
Assignee:
Sion Power Corporation
Inventors:
Igor P. Kovalev, Veronika G. Viner, David L. Coleman, Yuriy V. Mikhaylik, Christine Bunte
Abstract: Provided are a nickel-based active material for a lithium secondary battery, a method of preparing the nickel-based active material, and a lithium secondary battery including a positive electrode including the nickel-based active material. The nickel-based active material includes at least one secondary particle that includes at least two primary particle structures, the primary particle structures each including a porous inner portion and an outer portion having a radially arranged structure, and the secondary particle including at least two radial centers.
Type:
Grant
Filed:
September 30, 2020
Date of Patent:
January 10, 2023
Assignee:
Samsung SDI Co., Ltd.
Inventors:
Jinhwa Kim, Hyunbeom Kim, Jongmin Kim, Wooyoung Yang, Donggyu Chang, Jangsuk Hyun
Abstract: The present invention provides a single electrode assembly, in which a plurality of negative electrodes and positive electrodes are stacked alternately and repeatedly, and separators are disposed between the plurality of negative electrodes and positive electrodes, the electrode assembly including: a negative electrode tab part formed on one end of the electrode assembly and extending from the plurality of negative electrodes; a positive electrode bus bar spaced apart from the negative electrode tab part on the one end of the electrode assembly and electrically connecting the plurality of the positive electrodes; a positive electrode tab part formed on the other end of the electrode assembly opposite to the one end and extending from the plurality of positive electrodes; and a negative electrode bus bar spaced apart from the positive electrode tab part on the other end of the electrode assembly and electrically connecting the plurality of the negative electrodes.
Type:
Grant
Filed:
July 11, 2019
Date of Patent:
January 10, 2023
Inventors:
Soon Hyung Choi, Su Rim Lee, Seok Koo Kim
Abstract: An additive for a non-aqueous electrolyte solution that can suppress the initial gas generation amount when used in a non-aqueous electrolyte solution battery. The additive for a non-aqueous electrolyte solution is represented by any one of formulae [1] to [4]: wherein R1, R2, R3, R4, X1, X2 and Y are as defined in the specification.
Abstract: The present disclosure relates to a rechargeable battery including an electrode assembly that includes a first electrode, a second electrode, and a separator disposed between the first electrode and the second electrode, a first electrode tab that is electrically connected with the first electrode, and includes at least one first bent portion, a second electrode tab that is electrically connected with the second electrode, and includes at least one second bent portion, and exterior member that receives the electrode assembly, and a reinforcement member that is disposed in the first exterior member, while being disposed adjacent to at least one of the first electrode tab and the second electrode tab.
Type:
Grant
Filed:
November 6, 2017
Date of Patent:
December 20, 2022
Assignee:
Samsung SDI Co., Ltd.
Inventors:
Da-Un Han, Bong-Kyoung Park, Wonkyu Bang, Juhee Sohn, Hyunhwa Song, Jungyup Yang, Hyeri Eom, Seungjae Lee, Sol Choi, Juhyeong Han, Seokhun Hong, Jandee Kim, Junggyu Nam, Junwon Suh, Jeongdoo Yi
Abstract: To provide a method for inspecting a gas leak from a fuel cell stack, whereby a leak position can be efficiently identified in a short time. A method for inspecting a gas leak from a fuel cell stack includes a jig installation step of installing a division jig that covers an outer surface, on which stacked end faces of the fuel cell stack are exposed, that divides the outer surface into a plurality of regions, and that includes a plurality of inspection spaces on each divided region. The method further includes a first leak inspection step of identifying a leak region, in which the gas leak occurs, with a gas sensor arranged in each of the inspection spaces.
Abstract: An electrochemical cell is provided, which includes a cathode comprising a three dimensional (3D) porous cathode structure, an anode, an electrolyte separator, comprised of a ceramic material, located between the cathode and the anode, and a cathode current collector, wherein the cathode is located between the cathode current collector and the electrolyte separator. The 3D porous cathode structure includes ionically conducting electrolyte strands extending through the cathode from the cathode current collector to the electrolyte separator, pores extending through the cathode from the cathode current collector to the electrolyte separator, and an electronically conducting network extending on sidewall surfaces of the pores from the cathode current collector to the electrolyte separator.
Type:
Grant
Filed:
October 29, 2021
Date of Patent:
December 13, 2022
Assignee:
SAKUU CORPORATION
Inventors:
Steven Zhichao Shi, Philip Eugene Rogren
Abstract: There is provided an apparatus for manufacturing a cell stack for a secondary battery, the apparatus including: a stack table on which a negative electrode plate and a positive electrode plate are sequentially stacked with a separator interposed therebetween; an electrode-plate-stacking-position adjusting means; a clamping means; a drive means configured to reciprocally turn the stack table, the electrode-plate-stacking-position adjusting means, and the clamping means to both sides so that the separator supplied to the stack table is folded in a zigzag shape and the negative electrode plate and the positive electrode plate are alternately stacked between folded portions of the separator; and a support means configured to support the stack table, the electrode-plate-stacking-position adjusting means, the clamping means, and the drive means.
Abstract: A linear time varying model predictive control (LTV-MPC) framework is developed for degradation-conscious control of automotive polymer electrolyte membrane (PEM) fuel cell systems. A reduced-order nonlinear model of the entire system is derived first. This nonlinear model is then successively linearized about the current operating point to obtain a linear model. The linear model is utilized to formulate the control problem using a rate-based MPC formulation. The controller objective is to ensure offset-free tracking of the power demand, while maximizing the overall system efficiency and enhancing its durability. To this end, the fuel consumption and the power loss due to auxiliary equipment are minimized. Moreover, the internal states of the fuel cell stack are constrained to avoid harmful conditions that are known stressors of the fuel cell components.
Type:
Grant
Filed:
April 3, 2020
Date of Patent:
November 29, 2022
Assignee:
THE REGENTS OF THE UNIVERSITY OF MICHIGAN
Abstract: A heat rejection panel comprising a first and a second plate. The first plate comprises an oscillating heat pipe face having a plurality of first opened elongated recesses formed therein, and the second plate comprises an oscillating heat pipe face having a plurality of second open elongated recesses formed therein. The first plate oscillating heat pipe face is hermetically sealed to the second plate oscillating heat pipe face forming a bond joint therebetween. The first plate caps the second open elongated recesses and the second plate caps the first open elongated recesses such that first open elongated recesses are physically and fluidly connected to the second open elongated recesses, thereby forming at least one non-planar oscillating heat pipe channel within the panel that reciprocates back and forth across the bond joint having the bond joint as a longitudinal axis.
Abstract: A stacking apparatus provided with a flexible conveyor plate (20), a clamp mechanism (25) for holding a sheet-shaped member carried on the conveyor plate (20) against the conveyor plate (20), and an adjustment mechanism able to adjust the degree of curvature of the conveyor plate (20). When stacking a new sheet-shaped member (1) carried on the conveyor plate (20) onto already stacked sheet-shaped members (1), the adjustment mechanism makes the conveyor plate (20) deform from a flat state to a curved state to make the new sheet-shaped member (1) carried on the conveyor plate (20) deform from a flat state to a curved state.
Abstract: A method for producing a lithium-ion cell is provided. The electrochemically active coating of an electrode is brought into contact with an electrolyte or an auxiliary liquid before a winding or cutting operation. This method is suitable in particular for continuously producing lithium-ion cells by means of processes proceeding at high speed, such as winding processes.
Type:
Grant
Filed:
October 14, 2020
Date of Patent:
November 22, 2022
Assignee:
Bayerische Motoren Werke Aktiengesellschaft
Abstract: The invention relates to the simultaneous use of a first salt comprising a nitrate anion (NO3?) and a second salt comprising an anion other than nitrate, at least one of the first and second salts being a lithium salt, as ionic conductivity promoters in a rechargeable lithium-metal-gel battery. The invention also relates to a lithium-gel battery comprising a mixture of said first salt and said second salt, to a non-aqueous gel electrolyte comprising such mixture and to a lithium battery positive electrode comprising said mixture.
Type:
Grant
Filed:
November 19, 2018
Date of Patent:
November 22, 2022
Assignee:
BLUE SOLUTIONS
Inventors:
Marc Deschamps, Renaud Bouchet, Margaud Lecuyer, Julien Rolland