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NEI Announces Ready-to-Cast Solid Electrolyte Slurry for Lithium Ion Batteries

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January 21, 2015

Somerset, New Jersey (USA) – NEI Corporation, a leading developer and manufacturer of specialty cathode, anode, and electrolyte materials for Lithium-ion batteries, announced today that they are expanding their offering of patent-pending, solid electrolyte materials. Over the past year, NEI has supplied multi-kilogram quantities of their newly developed solid electrolyte powder, NANOMYTE® SSE-10 (Li10SnP2S12 or LSPS). SSE-10, which has now been used by a multitude of scientists and engineers for developing and prototyping “all solid” Lithium batteries, is now being made available in the form of a slurry or dispersion that can be cast into flexible tapes. NANOMYTE® SSE-10D is composed of surface-modified LSPS particles dispersed in organic solvent, which can be removed after the tape or film is formed.

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Slurry Pour

NANOMYTE® SSE-10D is a ready-to-cast and practical solid electrolyte material for lithium-ion batteries

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Cathode Tape Comprising Lithium Cobalt Oxide and NANOMYTE® SSE-10D, cast on aluminum current collector

Cathode Tape Comprising Lithium Cobalt Oxide and NANOMYTE® SSE-10D, cast on aluminum current collector

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Lithium Tin Phosphorous Sulfide (LSPS) belongs to a family of “superionic” solids, which have demonstrated high conductivity for lithium ions at room temperature. Commercial Lithium-ion batteries usually contain an electrolyte that is dissolved in flammable solvents. The use of a solid electrolyte eliminates the flammability issue associated with currently used liquid electrolytes. Sulfur-based superionic solids with high Li-ion conductivity (10-3 S/cm) at room temperature (and more than an order of magnitude higher at 60 oC) were not commercially available until more than a year ago, when NEI first introduced LSPS in powder form. Since then, SSE-10 powder has been tested by industrial corporations (automotive, electronics, oil & gas) as well as academic and research institutes. By offering the material in slurry form, SSE-10D is readily castable into films & tapes and provides more options for cell designers to combine with suitable cathode and anode active materials. Additionally, SSE-10D allows limited atmospheric stability to the solid electrolyte particles, which otherwise need to be handled in a controlled environment.

NANOMYTE® SSE-10D is available in small as well as bulk quantities, and it can be supplied in customized formulations, with the addition of an active material (such as LCO, LFP, NCA, LMNO, graphite, and LTO).

NEI Corporation has been a long trusted source for customized cathode and anode materials used in lithium batteries. The company specializes in developing new compositions and particle morphologies, including nanoscale particle engineering. NEI also has an extensive battery research and characterization facility, which includes multi-channel cell testers. The introduction of NANOMYTE® SSE-10 last year, and now SSE-10D, will provide new capabilities to lithium battery developers and manufacturers to enable practical solid state batteries.

For more information, see NANOMYTE® SSE-10D’s Technical Data Sheet and Material Safety Data Sheet.

About NEI Corporation:
NEI Corporation 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 the advanced materials. NEI Corporation offers cathode and anode materials (both powders and coated electrodes), and solid state electrolytes for use in lithium-ion batteries. The company produces battery materials through a scalable and economical synthesis process, which is adaptable to different materials compositions and particle morphologies.

For more information, contact:
Ms. Krista Martin
+1 (732) 868‐3141
sales@neicorporation.com
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Advanced Prototyping Service for Complex Electrospun Fibers Offered by NEI Corporation

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January 6, 2015

Somerset, New Jersey (USA): NEI Corporation announced today an expansion of its service for producing nanoscale and microscale fibers through electrospinning. Electrospinning is a technique to form fibers by the use of a voltage potential, drawing material out into a thin diameter and collecting it on a grounded platform. The electrospinning equipment at NEI allows for large areas of fiber mats – upwards of one square foot. Combined with a variety of characterization and testing equipment already available in-house, this can accelerate development of the customer’s technology into commercial materials. Electrospinning offers a commercially viable method for rapid prototyping of fibrous materials.

Silicone fiber fabricated using core-shell electrospinning technology developed at NEI: Project funded by a Fortune 50 Company. Inset: schematic of the etching process to yield silicone fibers.

Silicone fiber fabricated using core-shell electrospinning technology developed at NEI: Project funded by a Fortune 50 Company. Inset: schematic of the etching process to yield silicone fibers.

Newly offered through NEI’s capabilities are two approaches which can be utilized for novel fiber production:

  1. Multi-scale fibers which can range from a few hundred nanometers up to tens of micrometer.
  2. Core-shell fibers which contain a different material for the wall of the fibers and another for the core.

NEI’s capabilities in electrospinning also include the ability to fabricate an assortment of different fibers, such as polymeric, ceramic, or metallic materials. Additionally, as part of expanding the scope of recent advancements in electrospinning, NEI can create tailored core-sheath fibers for production of composite fibers.

NEI can also assist the customer in identifying the special attributes of electrospun fibers and how to benefit from them. NEI has worked with other companies to elevate the technology readiness levels of new technologies and can provide direction in advancing fiber production as per the needs of the application. Characterization and tests can be carried out under applicable industry standards, such as American Society for Testing and Materials (ASTM). Given NEI’s vast experience in nanotechnology and materials synthesis, its electrospinning service enables the company to share its knowledge with customers through fabrication, testing, and analysis of its customer’s technologies with NEI’s state of the art equipment.

For more information on NEI’s electrospinning service, view the brochure.

About NEI Corporation:

Founded in 1997, NEI Corporation develops, manufactures, and distributes nanoscale materials for a broad range of industrial customers around the world. NEI’s products incorporate proprietary nanotechnology and advanced materials science to create significant performance improvements in manufactured goods. NEI’s products include advanced protective coatings, high performance battery electrode materials, and specialty nanoscale materials for diverse applications. NEI has created a strong foundation in the emerging field of nanotechnology that has enabled the company to become a leader in selected markets.

For more information, contact:

Ms. Krista Martin
(732) 868‐3141
sales@neicorporation.com
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