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Improved electrochemical stability of microscale lithium-ion battery cathode particles with conformal graphene coatings
NU 2021-158
INVENTORS
Mark Hersam*
Kyu-Young Park
SHORT DESCRIPTION
A cobalt-free LiNiO2 cathode material is enhanced with a conformal graphene coating that improves high- voltage stability and extends cycle life. The innovation addresses oxygen loss and associated structural degradation during high state of charge.
BACKGROUND
Cobalt-free...
Published: 11/6/2025
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Inventor(s):
Keywords(s): Batteries, Coating, Energy and Infrastructure, Graphene
Category(s): Physical Sciences > Materials and Industrial Processes
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Enabling Ambient Stability of Lithium-Ion Battery Electrode Materials via Graphene-Cellulose Composite Coatings
INVENTORS
Mark Hersam*
Norman Luu
SHORT DESCRIPTION
A novel graphene-ethyl cellulose (GrEC) coating technique that significantly enhances the ambient stability of nickel-rich lithium-ion battery (LIB) cathode materials by preventing the formation of surface impurities.
BACKGROUND
Lithium-ion batteries (LIBs) are crucial for the clean...
Published: 11/6/2025
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Inventor(s):
Keywords(s): Batteries, Cleantech, Coating, Energy and Infrastructure, Graphene, Materials, Nanomaterials, Sustainability
Category(s): Physical Sciences > Materials and Industrial Processes
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Efficient Inverse Perovskite Solar Cells by Uniform Deposition of Al2O3
NU 2024-102
INVENTORS
Doekjae Choi
Bin Chen
Ted Sargent*
SHORT DESCRIPTION
This technology significantly improves the efficiency and stability of all-perovskite tandem solar cells through surface functionalization and atomic layer deposition.
BACKGROUND
Voltage deficits in inverted perovskite solar cells occurs primarily at the interface recombination...
Published: 11/6/2025
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Inventor(s):
Keywords(s): Cleantech, Coating, Devices, Energy and Infrastructure, Photovoltaic, Solar, Sustainability
Category(s): Physical Sciences > Materials and Industrial Processes, Physical Sciences > Energy & Sustainability
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Graphene Coating of High Voltage Lithium-Ion Batteries
NU 2021-090
INVENTORS
Mark Hersam*
Norman Luu
Jin-Myoung Lim
SHORT DESCRIPTION
Graphene coating that improves the stability, life cycle, and efficiency of Li -ion battery at high voltage
ABSTRACT
Northwestern researchers have developed a conformal, conductive graphene coating that can stabilize high-voltage Li-ion batteries by reducing mechanical...
Published: 11/6/2025
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Inventor(s):
Keywords(s): Batteries, Cleantech, Coating, Materials
Category(s): Physical Sciences > Energy & Sustainability, Physical Sciences > Materials and Industrial Processes
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ELECTRICAL ENERGY GENERATION USING METAL NANOFILMS
NU 2014-102B
INVENTORS
Franz Geiger*
Tom Miller* (CalTech)
SHORT DESCRIPTION
Metal nanofilms that convert gravitational energy to electrical energy when aqueous drops roll down their surface.
BACKGROUND
Harvesting electrical energy from natural resources is critical to limit the consumption of batteries and fossil fuels. Approaches for electric power...
Published: 11/6/2025
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Inventor(s):
Keywords(s): Biomedical, Coating, Energy and Infrastructure, Materials
Category(s): Physical Sciences > Materials and Industrial Processes
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Additive Manufacturing of Large-Area Covalent Organic Framework Thin-films
NU 2020-132
INVENTORS
Mark C. Hersam*
William R. Dichtel*
Nathan P. Bradshaw
Austin M. Evans
SHORT DESCRIPTION
A new method for additive manufacturing of 2D covalent organic framework (COF) thin-films on various substrates using spray-coating
BACKGROUND
2D COFs are crystalline, two-dimensional polymers that have molecularly precise pore sizes. 2D...
Published: 11/6/2025
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Inventor(s):
Keywords(s): Coating, Manufacturing/Processing, Sensors, Thin film
Category(s): Physical Sciences > Materials and Industrial Processes
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On-mask Chemical Modulation of Respiratory Droplets
NU 2020-180
INVENTORS
Jiaxing Huang*
Haiyue Huang
Hun Park
DESCRIPTION
Mask treatment that chemically deactivates exhaled droplets passing through the mask fabric with anti-pathogenic molecules
BACKGROUND
Transmission of infectious respiratory diseases starts from pathogen-laden droplets released during coughing, sneezing or speaking. Global respiratory...
Published: 11/6/2025
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Inventor(s):
Keywords(s): Chemicals, Coating, COVID-19, Health & Safety, Infectious disease, Materials
Category(s): Physical Sciences > Materials and Industrial Processes
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Anti-inflammatory Polymer Nanofilms As Robust And Versatile Implant Coatings
NU 2007-023B InventorsHoujin Huang Mark Chen Dean Ho* Erik Pierstorff AbstractInvasive biomedical devices such as implants must be stable in the body and compatible with human tissue. When such devices are used for drug delivery, there is an additional requirement for controlled, localized elution of the therapeutic substance. Parylene is an FDA-approved,...
Published: 11/6/2025
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Inventor(s):
Keywords(s): Biomedical, Coating, Devices, Drug delivery, Materials, Medical device, Nanomaterials
Category(s): Life Sciences > Healthcare Devices, Tools & IT
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Graphene Oxide Dough
NU 2017-147
INVENTORS
Jiaxing Huang*
Kevin Chiou
SHORT DESCRIPTION
A binder-free, playdough-like form of graphene oxide that is safer and compact for storage and transportation, which can also be shaped into various structures.
BACKGROUND
Graphene, dubbed “the supermaterial,” has enormous potential for applications...
Published: 11/6/2025
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Inventor(s):
Keywords(s): 3D Printing/Additive Manufacturing, Carbon nanotube, Coating, Electronics & Circuits, Energy and Infrastructure, Manufacturing/Processing, Materials, Nanotechnology
Category(s): Physical Sciences > Materials and Industrial Processes
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DOPA-Melanin Films and Particles as Antimicrobial Compound Carriers and Heavy Metal Scavengers
NU 2014-036 Inventor Phillip Messersmith* Jinghao Kuang Short DescriptionNovel method for production of DOPA-melanin films and particles AbstractNorthwestern University researchers have developed a simple method to generate DOPA-melanin (DM) films and particles for a variety of biomedical and environmental remediation applications. DM is a unique material...
Published: 11/6/2025
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Inventor(s):
Keywords(s): Biomedical, Coating, Environment, Materials
Category(s): Physical Sciences > Materials and Industrial Processes
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