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Air-Stable Organic Radicals for High-Density Data Storage
NU 2017-121
INVENTORS
James Stoddart* (Nobel laureate; Northwestern University, Weinberg College of Arts & Science, Department of Chemistry)
Zhichang Liu
Junling Sun
SHORT DESCRIPTION
For developers of high-density data storage, this [2]catenane system produces air-stable radicals with multiple accessible redox states, promising improved...
Published: 11/7/2025
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Inventor(s):
Keywords(s): Batteries, Data storage, Energy storage, Materials, Semiconductors & Integrated Circuits
Category(s): Physical Sciences > Materials and Industrial Processes, Physical Sciences > Engineering & Technology
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Chiral Redox-Active Isosceles Triangles for Enhanced Organic Lithium-Ion Batteries
NU 2016-043
INVENTORS
J. Fraser Stoddart (Nobel laureate; Northwestern University, Weinberg College of Arts & Science, Department of Chemistry)*
Siva Nalluri
Zhichang Liu
SHORT DESCRIPTION
This technology uses chiral, redox-active isosceles triangles as active materials for organic rechargeable lithium-ion batteries. It offers improved...
Published: 11/6/2025
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Inventor(s):
Keywords(s): Batteries, Energy storage, Lithium-ion, Materials
Category(s): Physical Sciences > Materials and Industrial Processes, Physical Sciences > Energy & Sustainability
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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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Exfoliation of Graphene using Biorenewable, Functionalized Cellulose Nanocrystals
NU 2023-183
INVENTORS
Mark Hersam*
Stuart Rowan*
Janan Hui
Haoyang You
SHORT DESCRIPTION
Utilizing biorenewable carboxylated cellulose nanocrystals for the eco-friendly and scalable exfoliation of few-layer graphene nanoplatelets.
BACKGROUND
Graphene's potential in next-generation printed electronics is vast yet hindered...
Published: 11/6/2025
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Inventor(s):
Keywords(s): Batteries, Cleantech, Devices, Electronics & Circuits, Graphene, Nanomaterials, Thin film
Category(s): Life Sciences, Physical Sciences > Materials and Industrial Processes
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Kaolinite Nanoplatelet Gel Electrolytes
NU 2024-049
INVENTORS
Davy Zeng
Cory Thomas West
Mark C. Hersam*
SHORT DESCRIPTION
A novel method for producing kaolinite nanoplatelets to enhance the safety and efficiency of lithium metal batteries.
BACKGROUND
Traditional liquid electrolytes for lithium-ion batteries are highly flammable. Despite extensive research into less flammable solid-state...
Published: 11/6/2025
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Inventor(s):
Keywords(s): Batteries, Cleantech
Category(s): Physical Sciences > Materials and Industrial Processes, Physical Sciences > Energy & Sustainability
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New Proton Conducting Electrolytes
NU 2019-158
INVENTORS
Sossina Haile*
Sheel Suketu Sanghvi
Louis Shen Wang
SHORT DESCRIPTION
This invention introduces Cs3H(H2PO4)4, a novel proton conducting electrolyte that forms a highly conductive cubic phase (≈10⁻³ S cm⁻¹) at intermediate temperatures (100–150 °C) with exceptional stability in dry atmospheres.
BACKGROUND
The...
Published: 11/6/2025
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Inventor(s):
Keywords(s): Batteries, Cleantech, Devices, Energy and Infrastructure, Fuel Cell, Hydrogen, Materials, Metals
Category(s): Physical Sciences > Energy & Sustainability
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Iron-based Foams and Powder Beds for Rechargeable Solid-oxide Batteries
NU 2023-216, 2022-100
INVENTORS
David C. Dunand *
Samuel M. Pennell
SHORT DESCRIPTION
A new iron-based composite with ultra-high stability and durability as a battery material for grid-scale energy storage.
BACKGROUND
The global shift towards renewable energy necessitates efficient storage solutions for intermittent power, which is crucial for maintaining...
Published: 11/6/2025
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Inventor(s):
Keywords(s): Batteries, Carbon Dioxide Management, Carbon Storage, Carbon Utilization, CCUS, Cleantech, Energy and Infrastructure, Fuel Cell, Hydrogen, Materials, Sustainability
Category(s): Physical Sciences > Materials and Industrial Processes, Physical Sciences > Energy & Sustainability
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Blade-Coatable Ionogel Electrolytes for High Energy Density Lithium Metal Batteries
NU 2022-034
INVENTORS
Cory M. Thomas West
Woo Jin Hyun
Mark C. Hersam*
SHORT DESCRIPTION
A new blade-coatable ionogel electrolyte that enables high energy density solid-state lithium metal batteries with excellent cycling stability and rate performance
ABSTRACT
Northwestern researchers have developed a new approach to address critical scalability...
Published: 11/6/2025
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Inventor(s):
Keywords(s): Batteries, Cleantech, Electronics & Circuits, Manufacturing/Processing, Materials
Category(s): Physical Sciences > Energy & Sustainability, Physical Sciences > Engineering & Technology, Physical Sciences > Materials and Industrial Processes
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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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