Toyota Motor Engineering & Manufacturing North America, Inc.

Toyota Jidosha Kabushiki Kaisha

Leland Stanford Junior University

University of California

Purdue Research Foundation

University of Colorado

University of Connecticut

Alliance for Sustainable Energy, LLC

Toyota Motor North America, Inc.

Utah State University

United States Department of Energy

Ercan Mehmet Dede

Shailesh N Joshi

Feng Zhou

Paul Donald Schmalenberg

Sean P Rodrigues

Tsuyoshi Nomura

Frederico Marcolino Quintao Severgnini

Yuqing Zhou

Danny J Lohan

Debasish Banerjee

Hideo Iizuka

Hiroshi Ukegawa

Jaewook Lee

Yanghe Liu

Taehwa Lee

Muhamed K Farooq

Kenneth E Goodson

Hiroshi Ando

Matthew Joseph Rau

Kojiro Tachi

Masaaki Kawauchi

Jae Seung Lee

Dragan Maksimovic

Brian Joseph Robert

Robert Warren Erickson

Chi-Ming Wang

Ziqi Yu

Suresh V Garimella

Chungchih Chou

Tianzhu Fan

Vivek Sankaranarayanan

Mehdi Asheghi

Yucheng Gao

Tomoki Tambo

Yan Liu

Shanhui Fan

Songtao Wu

Serdar Hakki Yonak

Masanori Ishigaki

Naoya Take

Khoa Vo

Ki Wook Jung

Kyosuke N Miyagi

Shuhei Horimoto

Mayur Prakash Gaikwad

Hossein Hamidi Shishavan

Insoo Kim

Sreekant Narumanchi

Chi Zhang

Kenan Wang

Yu Yang Song

Sougata Hazra

Umesh N Gandhi

Hiroshi Yokoyama

Jongwon Shin

Sang Won Yoon

Masao Noguchi

Shohei Nagai

Hitoshi Fujioka

Douglas G Thorpe

Atsushi Iwai

James W Palko

Haiwen Wang

Aritra Ghosh

Zeljko Pantic

Hiroshi N Ukegawa

Masaki Nakaoka

Joshua Sean Kuhlmann

Seyed Mohammad Reza Tavakoli

Kia Golzari

Bidzina Kekelia

Souvik Roy

Neda Seyedhassantehrani

Muhammad Shattique

Qianying Wu

James Palko

Mohammad Behzadi

Jiahui Wang

Roman Giglio

A fuel cell system includes: a first fuel cell; a second fuel cell; a cathode configured to receive a positive charge from the first fuel cell and the second fuel cell; an anode disposed apart from the cathode and configured to receive a negative charge from the first fuel cell and the second fuel cell; a manifold enclosing the anode and the cathode; coolant disposed within the manifold and surrounding the cathode and the anode; and a seal disposed between the cathode and the anode so as to prevent the coolant from leaking into the first fuel cell, wherein the cathode includes a seal portion disposed adjacent to the seal and a remaining portion separated from the seal by the seal portion, and wherein the remaining portion of the cathode is configured to be non-parallel with the anode so as to reduce shunt current at the seal portion.

Fuel cell bipolar plate design for reduced corrosion potential

A stacked three-dimensional (3D) metasurface includes a first layer with a first kernel configured to apply a first convolution on a first frequency of an incident polarized light, and a second layer with a second kernel different than the first kernel. The second kernel is configured to apply a second convolution different than the first convolution on a second frequency of the incident polarized light and the second frequency is different than the first frequency such that the stack 3D metasurface provides at least two independent convolutions on the incident polarized light.

Stacked multi-frequency three-dimensional metasurface

The present disclosure is directed to systems and methods for cooling electronic devices. The system comprises a pump, a distribution manifold fluidly coupled to the pump, one or more capillary coolers fluidly coupled to the distribution manifold, one or more electronic devices coupled to the one or more capillary coolers, a vapor line fluidly coupled to the one or more capillary coolers, and a condenser comprising an inlet and an outlet, wherein the inlet is fluidly coupled to the vapor line and the outlet is fluidly coupled to the pump.

Systems and methods for cooling electronic devices

A fuel cell that includes an air fuel cell bipolar plate and a hydrogen fuel cell bipolar plate respectively having a Turing-pattern microstructure configuration. The spatial arrangement of the air fuel cell bipolar plate and the hydrogen fuel cell bipolar plate is such that the air layer of the air fuel cell bipolar plate and the hydrogen layer of the hydrogen fuel cell bipolar plate are opposed to each other to define a microstructure configuration for a coolant layer.

Fuel cell having bipolar plates with multi-layered dehomogenized turing-pattern microstructure configuration

One or more methods of designing an FC bipolar plate that enhance the operational performance of FC. A first image analysis is conducted of image data of a fluid flow field structure having one or more dehomogenized microstructures to identify channels having a fluid flow blockage at a channel wall dead-end. The channel wall dead-end of each identified channel is selectively removed in a manner that fluidically connects each identified channel to an adjacent channel. Then, a second image analysis of the image data is conducted in response to selectively removing the channel wall dead-ends to measure a length of each channel wall. Channels walls having a length greater than a threshold channel wall length value are selectively cut, thereby providing reduced fluid flow resistance throughout the FC.

Method of designing fluid flow field structure for fuel cell bipolar plate

A method includes printing, using a 3D printer, a cold plate, printing, using a 3D printer, an electrical insulation layer embedded in a top surface of the cold plate, and printing, using a 3D printer, a conductor substrate embedded in the electrical insulation layer embedded in the top surface of the cold plate.

3D printed cold plates and methods for cooling power devices embedded in 3D printed circuit boards

A dual ring resonator including a base substrate, and a silicon oxide layer positioned on the base substrate having a first waveguide, a primary ring resonator optically coupled to the first waveguide, a second waveguide, and a secondary ring resonator optically coupled to the primary ring resonator and the second waveguide. The dual ring resonator further includes at least one heater disposed partially on the primary ring resonator, and a trench within at least the silicon oxide layer and surrounding at least a portion of the first waveguide and the second waveguide.

Dual ring resonator systems with thermal isolation, optical performance, and reduced transmission loss and methods thereof

Embodiments of an integrated apparatus for measuring an external magnetic or other external stimulus are presented herein. This apparatus may include a semiconductor integrated circuit comprising a plurality of metal layers; a solid-state host disposed on the semiconductor integrated circuit and comprising a plurality of color centers; a photonic integrated circuit disposed on the solid-state host and comprising optical modulators and a grating array in optical communication with the plurality of color centers via a material capable of transmitting light below 1000 nm; a microwave antenna formed in a first metal layer in the plurality of metal layers of the semiconductor integrated circuit; and a photodetector in optical communication with the plurality of color centers.

Chip-scale optically determined magnetic resonance sensor

A vehicle system includes a controller programmed to display a plurality of icons on a heads-up-display (HUD) of the vehicle, receive electroencephalography (EEG) data from a driver of the vehicle, perform a Fast Fourier Transform of the EEG data to obtain an EEG spectrum, input the EEG spectrum into a trained machine learning model, determine which of the plurality of icons the driver is viewing based on an output of the trained machine learning model, and perform one or more vehicle operations based on the output of the trained machine learning model.

Closed-loop real time SSVEP-based heads-up display to control in vehicle features using deep learning

A fuel cell may include a first fuel cell bipolar plate defining an air layer, a second fuel cell bipolar plate defining a hydrogen layer, and a coolant layer defined by the air layer and the hydrogen layer. The coolant layer includes a plurality of coolant microchannels that facilitate flow of a coolant. A permeable support layer is arranged between the air layer and the hydrogen layer to define a gap therebetween to prevent flow blockage of the coolant microchannels while facilitating coolant flow therethrough.

Permeable support layer for fuel cell fluid flow networks

A 3D printing system includes a reservoir for a UV-curable dielectric material in communication with a first nozzle configured to print the UV-curable dielectric material onto a substrate and a reservoir for a low CTE filler in communication with a second nozzle configured to print the low CTE filler onto the substrate, and a reservoir for a conductive ink in communication with a third nozzle configured to print the conductive ink onto the substrate. The 3D printing system prints the UV-curable dielectric material and the low CTE filler such that the printed low CTE filler mixes with the printed UV-curable dielectric material and forms a UV-curable dielectric layer with the low CTE filler dispersed therein.

UV curable dielectric materials for 3D printing and 3D printing systems with the same

A bipolar plate for a fuel cell, a fuel cell, and a method of designing a bipolar plate for a fuel cell having a hybrid flow field structure that includes a plurality of parallel feed flow channels fluidically connected to an inlet bipolar plate region, a plurality of parallel exit flow channels fluidically connected to an outlet bipolar plate region, and an interwoven pattern formed by a plurality of simplified periodic array flow field structure generated based on flow patterns generated by homogenized anisotropic porous media optimization. The flow field structure enhances fuel cell performance by facilitating lower pressure drop via minimized fluid flow resistance, and removal of accumulated water in the oxygen channel and the gas diffusion layer (GDL) under the ribs of the bipolar plate.

Fuel cell bipolar plate flow field having hybrid interwoven channel pattern

Disclosed herein are apparatus for a cooler device includes a manifold constructed at least partially of silicon oxide. The manifold includes an array of inlet channels and an array of outlet channels. Each inlet channel has a first depth. The array of outlet channels are interlaced with the array of inlet channels, Each outlet channel has a second depth that is larger than the first depth. Each of the array of outlet channels has a pair of sidewalls separating each outlet channel from adjacent inlet channels of the array of inlet channels.

Systems for cooler devices and cooling manifolds

A light apparatus includes an optical member, composed of an elastically deformable material, having a reflective surface to reflect light. The optical member moveable between a first state in which the reflective surface has a first structural shape, and a plurality of second states in which the reflective surface has a second structural shape different than the first structural shape. Elastically deformable position adjustment members are operable to move the optical member between the first state and the plurality of second states. The elastically deformable position adjustment members have one or more photochromatic regions that are moveable in response to exposure to UV light. Light sources are operable to selectively emit illuminating UV light in a direction that contacts the one or more photochromatic regions to thereby adjust an orientation of the optical member in a manner which changes a direction of light reflected by the optical member.

Dynamic adjustment of flexible mirror using photochromatic material

A method of designing a fuel cell includes executing one or more programs on one or more computing devices having one or more processors to predict a location of one or more liquid regions and one or more vapor regions in microchannels at an air layer of a plate of the fuel cell. Based on the prediction, fluid flow networks for the air layer, a hydrogen layer, and a coolant layer of the fuel cell are simultaneously optimized via homogenized flow optimization. In response to the results of the homogenized flow optimization, one or more multi-scale Turing-patterned microstructures are generated for the air layer and the hydrogen layer. One or more multi-scale Turing-patterned microstructures are generated for the coolant layer by stacking the air layer and the hydrogen layer.

Method of predicting liquid regions and vapor regions in bipolar plates of a fuel cell

Growing community of inventors

Ann Arbor, MI, United States of America

Ercan Mehmet Dede