Tag Archive for: lithium-ion battery materials

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Collaboration Yields New High-Performance Graphene Dispersions

March 5, 2025

Somerset, NJ – NEI Corporation is pleased to announce the launch of a new line of advanced graphene dispersions developed in collaboration with HydroGraph Clean Power Inc. These innovative dispersions can be seamlessly integrated into existing electrode slurries, replacing or supplementing traditional conducting carbons. When mixed with active materials and binder, these conductive additives enable the creation of flexible electrodes, expanding design possibilities for high-performance cells.

Why is this unique?

The new FGA-1 dispersions utilize HydroGraph’s pristine Fractal GrapheneTM, produced through a proprietary detonation synthesis process. This unique graphene exhibits 100% sp2 bonding and a turbostratic arrangement with an average of six graphene layers per particle. This nanoscale structure contributes to exceptional conductivity and facilitates improved rate capability and energy density, providing a significant advantage for diverse battery applications.

“One key advantage of these conductive additives is their lower percolation threshold. Due to its 2D geometry, graphene facilitates improved interconnectivity between active material particles and the conductive network within the electrode compared to spherical carbon black particles,” said Dr. Ranjith Divigalpitiya, CSO of Hydrograph.

SEM of Hydrograph graphene at 10k and 50k magnification

New Product Line: Carbon-Based Conductive Additives

The new line of advanced conductive additives, available in both NMP-based and water-based dispersions, expands NEI Corporation’s comprehensive portfolio of high-performance battery materials. This strategic addition complements NEI’s existing offerings of cathode, anode, and electrolyte materials for both lithium-ion and sodium-ion batteries, enabling the company to provide customers with even more complete and integrated solutions.

“Our collaboration with Hydrograph and the launch of these graphene dispersions demonstrates NEI’s commitment to innovation and supporting battery researchers,” said Dr. Ganesh Skandan, CEO of NEI Corporation.

Product Preview

NANOMYTE® FGA-1AD

FGA-1AD is a ready-to-use aqueous graphene dispersion designed to replace or supplement traditional conducting carbons in electrode slurries to enhance performance.

  • Description: 7 wt.% Graphene dispersion in Water
  • Density (20 °C): 1.04 g/cc
  • Viscosity (20 °C): 150 cP (40 s-1)

Available Quantities: 1L and 4L (request quote)

Technical Links: Specification Sheet (pdf) | Safety Data Sheet (pdf)

NANOMYTE® FGA-1ND

FGA-1ND is a ready-to-use graphene dispersion in NMP designed to replace or supplement traditional conducting carbons in electrode slurries to enhance performance.

  • Description: 7 wt.% Graphene dispersion in NMP (N-methyl-2-pyrrolidone)
  • Density (20 °C): 1.07 g/cc
  • Viscosity (20 °C): 1200 cP (40 s-1)

Available Quantities: 200mL, 500mL, 1L, and 4L (request quote)

Technical Links: Specification Sheet (pdf) | Safety Data Sheet (pdf)

Applications

Some example applications for these graphene dispersions include anode and cathode conductive additives in Li-ion batteries, replacement conductive additive for CNT, conductive additive for Si anode slurries, replacement conductive additives for carbon black, replacement active material for activated carbon in super capacitor electrode, conductive additive for supercapacitor electrode.

Request a quote today!

About NEI Corporation

For over 27 years, NEI Corporation has provided advanced material solutions to customers worldwide. NEI excels in designing, developing, and producing application-specific materials. The company offers a comprehensive range of solutions, including cathode, anode, and electrolyte materials for lithium-ion and sodium-ion batteries, as well as extensive in-house materials development, characterization, and testing services. NEI’s materials science expertise facilitates close partnerships and seamless product integration.

For company updates, follow NEI Corporation on LinkedIn and X.

About Hydrograph Clean Power Inc.

HydroGraph Clean Power Inc is a leading producer of pristine graphene using an “explosion synthesis” process, which allows for exceptional purity, low energy use and identical batches. The quality, performance and consistency of HydroGraph’s graphene follows the Graphene Council’s Verified Graphene Producer® standards, of which very few graphene producers are able to meet.  For more information or to learn about the HydroGraph story, visit: https://hydrograph.com/

For company updates, please follow HydroGraph on LinkedIn and X.

Download Press Release (pdf) ↓

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NEI Announces New In-house SEM Services

NEI Invests in Cutting-Edge Technology with New SEM

Somerset, New Jersey (USA) – NEI is thrilled to celebrate a significant upgrade to our characterization capabilities: the acquisition of a high-resolution Scanning Electron Microscope (SEM)! This powerful microscope is equipped with both a Backscattered Electron Detector (BSD) and a Secondary Electron Detector (SED) to readily identify different phases present in a sample. It can obtain images up to 100,000 times magnification and resolution smaller than 10 nm, to provide crisp and high-resolution images, allowing you to see your materials in unprecedented detail. With our new in-house SEM capabilities, NEI can now accommodate SEM requests more efficiently to deliver faster, cost-effective results. Our research team can analyze your materials and discuss findings with you directly, providing seamless integration for your R&D projects with us.

Industry Benefits of High-Resolution Imaging

By visualizing a material’s microstructure at the nanoscale, researchers and engineers can gain invaluable insights in order to create superior products with enhanced performance, efficiency, and reliability.

Battery Industry

  • Understand Degradation Mechanisms: Identify factors leading to capacity fade, power loss, and safety hazards.
  • Optimize Material Design: Tailor particle size, morphology, and composition for enhanced performance.
  • Evaluate Manufacturing Processes: Assess the impact of processing techniques on material microstructure.
  • Predict Battery Lifespan: Correlate microstructure with battery cycle life and performance.
  • Improve Quality Control: Detect defects and inconsistencies in battery materials.
  • Accelerate Development: Gain insights to develop advanced battery technologies.

Coatings Industry

  • Optimize Coating Performance: Understand how factors like particle size, distribution, and adhesion impact durability and functionality.
  • Accelerate Development: Visualize the effects of different coating formulations and processing conditions to refine product development.
  • Improve Quality Control: Detect defects, contaminants, and inconsistencies in the coating, ensuring product reliability.
  • Analyze Failure Modes: Identify the root cause of coating failures through detailed examination of the coating’s microstructure.
  • Develop Innovative Coatings: Explore new coating materials and technologies by visualizing their behavior at the nanoscale.

NEI’s Comprehensive Approach

Over the past 27 years, NEI has cultivated a team of materials scientists and engineers who work with specialty materials every single day. This means you can rely on our wealth of knowledge regarding lithium-ion and sodium-ion battery technology, protective surface coatings, nanomaterials, polymers, ceramics, composites, and more. With our comprehensive approach, NEI’s team of experts can provide in-depth analysis and interpretation of all SEM data, to help you to make informed decisions and propel your materials development process forward.

Learn more about our SEM services and request a free consultation to speak with one of our materials experts about your specific needs and how we can help you accomplish them.

About NEI Corporation:

Founded in 1997, NEI develops, manufactures, and sells advanced specialty materials for a broad range of industrial customers around the world. The company’s core competencies are in designing, developing, and producing products that meet the specific application needs of its customers. NEI’s products, which are sold under the registered trademark NANOMYTE®, are backed by a suite of issued and pending patents. NEI’s products include:  Lithium-ion Battery Materials, Na-ion Battery Materials, Functional & Protective Coatings, and Specialty Nanoparticle-based products.

NEI is a solutions provider, working closely with customers to produce and implement materials for their applications through a variety of in-house materials development, characterization, and testing services.

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NEI Introduces Three New Battery Materials to its Product Line

June 24, 2020

Somerset, NJ (USA) – NEI Corporation recently introduced three new products, further expanding its product line of Battery Electrode Sheets. The new materials cater to the growing need in the industry for high performance cathode and anode electrodes for lithium and lithium-ion batteries.

NANOMYTE® BE-70E is a cast electrode sheet of Sublimed Sulfur powder. Sulfur cathodes offer a high theoretical capacity of 1,672 mAh/g in a Li-S cell, which is an order of magnitude higher than those of the transition-metal oxide cathodes. The high capacity is based on the conversion reaction of sulfur to form lithium sulfide (Li2S) by reversibly incorporating two electrons per sulfur atom. Li−S cell consists of a lithium metal anode, an organic electrolyte, and a sulfur composite cathode, which leads to a theoretical cell capacity of 1,167 mAh/g. BE-70E has a practical capacity of at least 800 mAh/g. The discharge reaction has an average cell voltage of 2.15 V, resulting in a high theoretical gravimetric energy density of 2,509 Wh/kg at the cell level.

NANOMYTE® BE-150E is a cast electrode sheet of Silicon-Graphite composite powder. Silicon (Si) has attracted great attention due to its remarkably high theoretical specific capacity of ~4200 mAh/g, making it one of the most potential anode materials for advancing high-energy lithium-ion batteries. Si-Graphite composite (Si-C) offers the leverage to improve the electrochemical properties of Si with excellent stability attributed to the surrounding carbon-based matrix and improved electric conductivity network. Si-C tapes showed a nominal capacity of 750 mAh/g at 0.05C (electrode loading, 4 mAh/cm2) and demonstrated excellent cycling stability at 0.2C rate.

NANOMYTE® BE-400E is a cast electrode sheet of Niobium Oxide powder (Nb2O5), which is a new electrode material with pseudocapacitive charge storage being introduced to the market for the first time as a potential anode material. It is capable of exceptionally high rate charge as well as discharge (6 – 10C), with good cycling stability (1,000 – 3,000 cycles) and minimal heat generation during high-rate charge-discharge. The unique architecture of the oxide material enables rapid lithium diffusion on a macro and micro-scale enabling enhanced rate performance.

NEI offers a variety of cathode and anode electrode sheets, suitable for a wide range of Lithium-ion battery applications. Standard electrode sheets are cast single-side on 5″ x 10″ foil current collectors, and are available in ready-to-ship packages of 2, 5, and 10 sheets (per material). For customers with specific needs, tape specifications such as the active material loading, coating thickness, binder type (aqueous/non-aqueous), binder content, or current collector can be modified.

Additional Information: Specification Sheets ¦ Safety Data Sheets

Download Press Release (pdf) ↓

About NEI Corporation: NEI is an application driven company that utilizes nanotechnology to develop and produce advanced materials. The company’s core competencies are in synthesizing nanoscale materials and prototyping products that incorporate advanced materials. NEI Corporation offers cathode and anode materials (both powders and coated electrodes), and solid state electrolytes for use in lithium-ion batteries. We produce battery materials through our scalable and economical solid state synthesis process, which is adaptable to different materials compositions and particle morphologies.

For more information, give us a call or email us.