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Cathodes, Anodes, and Electrolytes

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Electrode Sheets for Lithium-ion Batteries

Electrode Sheets brochure

NEI offers a variety of cathode and anode materials for lithium-ion batteries. Our battery materials are produced through a scalable and economical solid state synthesis process, which is adaptable to different material compositions and particle morphologies. In addition to supplying the standard material compositions listed below, we can also custom produce any lithium battery material composition of your choice.

Ready-to-Ship Electrode Sheets

NEI’s standard electrode sheets are now available in ready-to-ship packages of 2, 5, or 10 sheets (per material). Standard electrode sheets are 5 in x 10 in (127 mm x 254 mm) and cast on one side of either aluminum (cathode) or copper foil (anode) current collectors. Each tape is composed of 90% active material, 5% PVDF binder, and 5% conductive carbon. NEI can also customize tape specifications (such as loading, thickness, binder, & collector) for an additional fee. Request your quote today!

NANOMYTE® Cathode & Anode Tapes

NEI offers a variety of cathode and anode electrode sheets that are suitable for a wide range of applications. Standard electrode sheets are cast on 5 inch x 10 inch (12.7 cm x 25.4 cm) sheets of copper (anode) or aluminum (cathode) foil current collectors, single-side coated with a 90% active material loading. NEI also offers custom tailored solutions for customers with unique specification requirements. Our tapes can be modified to accommodate different active material loadings, coating thickness, and binder type / content upon request.

Select a tab below to learn more:

"LTO" Tapes

Lithium Titanate (LTO) Electrode Sheets

Lithium Titanate / lithium titanium oxide (Li4Ti5O12, also referred to as LTO) is an electrode material with exceptional electrochemical stability. It is often used as the anode in lithium ion batteries for applications that require high rate, long cycle life and high efficiency. LTO-based batteries are considered safer, and have a wider operating temperature rate.

NEI has two “LTO” cast electrode sheet products – NANOMYTE® BE-10E and BE-10CE – which are cast electrode tapes of NEI’s two Lithium Titanate (LTO) powders.

NANOMYTE® BE-10E Spec Summary:

  • Active Material: Li4Ti5O12 powder  (1.5 – 3 µm)
  • Tape Composition: 90% active material; 5% binder (PVDF); 5% conductive carbon (Super P)
  • Current Collector: Copper (10 µm)
  • Standard Capacity: 1.25 mAh/cm2 ± 5%
  • Nominal Capacity at 0.1C: ≥ 170 mAh/g

NANOMYTE® BE-10CE Spec Summary:

  • Active Material: Carbon-coated Li4Ti5O12 powder (3 – 5 µm)
  • Tape Composition: 90% active material; 5% binder (PVDF); 5% conductive carbon (Super P)
  • Current Collector: Copper (10 µm)
  • Standard Capacity: 1.25 mAh/cm2 ± 5%
  • Nominal Capacity at 0.1C: ≥ 170 mAh/g

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Carbon Tapes

Graphite & Activated Carbon Electrode Sheets

In addition to lithium titanate electrode sheets, NEI provides two other types of anode tapes. NANOMYTE® BE-200E is a cast electrode tape of graphite powder & NANOMYTE® BE-300E is a cast electrode tape of activated carbon powder.

NANOMYTE® BE-200E Specs:

  • Active Material: Graphite powder (15 – 20 µm)
  • Tape Composition: 90% active material; 5% binder (PVDF); 5% conductive carbon (Super P)
  • Current Collector: Copper (10 µm)
  • Standard Capacity: 2.4 mAh/cm2 ± 5%
  • Nominal Capacity at 0.1C: ≥ 365 mAh/g

NANOMYTE® BE-300E Specs:

  • Active Material: Activated Carbon powder (5 – 10 µm)
  • Tape Composition: 90% active material; 5% binder (PVDF); 5% conductive carbon (Super P)
  • Current Collector: Copper (10 µm)
  • Standard Capacity: 2.4 mAh/cm2 ± 5%
  • Nominal Capacity at 0.1C: ≥ 220 mAh/g

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"LCO" Tapes

Lithium Cobalt Oxide (LCO) Electrode Sheets

Lithium Cobalt Oxide (LiCoO2, also referred to as “LCO”) was the first and most commercially successful form of layered transition metal oxide cathodes, and it is still used in the majority of commercial Li-ion batteries today. LCO is a very attractive cathode material because of its relatively high theoretical specific capacity of 274 mAh g−1, high theoretical volumetric capacity of 1363 mAh cm−3, low self-discharge, high discharge voltage, and good cycling performance.

NANOMYTE® BE-20E Specs:

  • Active Material: LiCoO2 powder (13 – 14 µm)
  • Tape Composition: 90% active material; 5% binder (PVDF); 5% conductive carbon (Super P)
  • Current Collector: Aluminum (16 µm)
  • Standard Capacity: 2 mAh/cm2 ± 5%
  • Nominal Capacity at 0.1C: ≥ 155 mAh/g

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"LMO" Tapes

Lithium Manganese Oxide (LMO) Electrode Sheets

Lithium manganese oxide (LiMn2O4, also referred to as “LMO”) is a cathode material with a spinel structure, which allows the material to be discharged at high rates. LMO-based batteries are most suited for use in high rate applications. NEI has two “LMO” cast electrode sheet products – NANOMYTE® BE-30E and BE-35E – which are cast electrode tapes of NEI’s two lithium manganese oxide (LMO) powders.

NANOMYTE® BE-30E Specs:

  • Active Material: LiMn2O4 powder (6 – 7 µm)
  • Tape Composition: 90% active material; 5% binder (PVDF); 5% conductive carbon (Super P)
  • Current Collector: Aluminum (16 µm)
  • Standard Capacity: 2 mAh/cm2 ± 5%
  • Nominal Capacity at 0.1C: ≥ 110 mAh/g

NANOMYTE® BE-35E Specs:

  • Active Material: LiMn2O4 powder (9 – 11 µm)
  • Tape Composition: 90% active material; 5% binder (PVDF); 5% conductive carbon (Super P)
  • Current Collector: Aluminum (16 µm)
  • Standard Capacity: 2 mAh/cm2 ± 5%
  • Nominal Capacity at 0.1C: ≥ 110 mAh/g

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"NCA" Tapes

Lithium Nickel Cobalt Aluminum Oxide (NCA) Electrode Sheets

Lithium Nickel Cobalt Aluminum Oxide (LiNi0.8Co0.15Al0.05O2, also referred to as “NCA”) is a cathode material that has found relatively widespread commercial use. NCA has high usable discharge capacity (∼200 mAh g−1) and long storage calendar life compared to conventional Co-based oxide cathodes. NCA-based batteries are most suited for use in moderate rate applications that require high energy density. NANOMYTE® BE-45E is a cast electrode tape of NEI’s NCA powder.

NANOMYTE® BE-45E Specs:

  • Active Material: LiNi0.8Co0.15Al0.05O2 powder (11 – 13 µm)
  • Tape Composition: 90% active material; 5% binder (PVDF); 5% conductive carbon (Super P)
  • Current Collector: Aluminum (16 µm)
  • Standard Capacity: 2 mAh/cm2 ± 5%
  • Nominal Capacity at 0.1C: ≥ 190 mAh/g

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"NMC" Tapes

Lithium Nickel Manganese Cobalt Oxide (NMC) Electrode Sheets

Layered Lithium Nickel Manganese Cobalt Oxide (LiNixMnyCozO2, also referred to as “NMC”) is a widely used class of cathode material with LiNi1/3Mn1/3Co1/3O2 (NMC111) being the most common representative. However, current research is focusing more and more on Ni-rich NMCs – such as NMC811, 622, 532 – due to their higher specific capacity and energy. Among these materials, NMC811 can deliver a high capacity of ∼200 mAh/g with an average discharge potential of ∼3.8 V (vs. Li+/Li), making it a promising positive electrode material for high energy density, lithium-ion batteries.

NANOMYTE® BE-50E is a cast electrode tape of NMC powder and is available in four different compositions:

  • “NMC 111” – LiNi0.33Mn0.33Co0.33O2
  • “NMC 532” – LiNi0.5Mn0.3Co0.2O2
  • “NMC 622” – LiNi0.6Mn0.2Co0.2O2
  • “NMC 811” – LiNi0.8Mn0.1Co0.1O2

NANOMYTE® BE-50E Specs:

  • Tape Composition: 90% active material; 5% binder (PVDF); 5% conductive carbon (Super P)
  • Current Collector: Aluminum (16 µm)
  • Standard Capacity: 2 mAh/cm2 ± 5%
  • Minimum Capacity Range: 150 – 180 mAh/g (depending on the NMC composition)

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"LFP" Tapes

Lithium Iron Phosphate (LFP) Electrode Sheets

Lithium Iron Phosphate (LiFePO4, also referred to as “LFP”) is the representative material for olivine structured cathode materials. Its specific capacity (~170 mAh/g) is higher than that of the related lithium cobalt oxide (~140 mAh/g), however its energy density is slightly lower due to its low operating voltage. Because of its low-cost, low-toxicity, long-term stability, and well-defined performance, LFP-based batteries are finding a number of roles in vehicle use and backup power applications.

NANOMYTE® BE-60E Specs:

  • Active Material: LiFePO4 powder (~2 µm)
  • Tape Composition: 90% active material; 5% binder (PVDF); 5% conductive carbon (Super P)
  • Current Collector: Aluminum (16 µm)
  • Standard Capacity: 1.25 mAh/cm2 ± 5%
  • Nominal Capacity at 0.1C: ≥ 160 mAh/g

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Sulfur Tapes

Sublimed Sulfur Electrode Sheets

*NEW* 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. 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-70E is a cast electrode tape of Sublimed Sulfur powder.

NANOMYTE® BE-70E Spec Summary:

  • Active Material: Sublimed Sulfur powder (< 150 μm)
  • Tape Composition: 70% active material; 10% PVDF binder; 20% conductive carbon
  • Current Collector: Aluminum (16 µm)
  • Standard Capacity: 3 mAh/cm2 ± 5%
  • Nominal Capacity at 0.1C: ≥ 900 mAh/g

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"LMNO" Tapes

Lithium Manganese Nickel Oxide (LMNO/Spinel) Electrode Sheets

Lithium manganese nickel oxide / spinel (LiMn1.5Ni0.5O4, also referred to as “LMNO”) is an attractive cathode candidate for next generation lithium-ion batteries, as it offers high power capability with an operating voltage of ∼4.7 V and a capacity of ∼135 mA h g−1. Due to its high potential, LMNO-based batteries have a higher energy density compared to lithium cobalt oxide and lithium iron phosphate and are used in high rate applications.

NEI has two LMNO cast electrode sheet products: NANOMYTE® SP-10E, which is composed with our standard LMNO powder, and SP-10CE, which is composed with our LATP-coated LMNO powder.

NANOMYTE® SP-10E Specs:

  • Active Material: LiMn1.5Ni0.5O4 powder (4 – 7 µm)
  • Tape Composition: 90% active material; 5% binder (PVDF); 5% conductive carbon (Super P)
  • Current Collector: Aluminum (16 µm)
  • Standard Capacity: 2 mAh/cm2 ± 5%
  • Nominal Capacity at 0.1C: ≥ 130 mAh/g

NANOMYTE® SP-10CE Specs:

  • Active Material: LATP-coated LiMn1.5Ni0.5O4 powder (5 – 8 µm)
  • Tape Composition: 90% active material; 5% binder (PVDF); 5% conductive carbon (Super P)
  • Current Collector: Aluminum (16 µm)
  • Standard Capacity: 2 mAh/cm2 ± 5%
  • Nominal Capacity at 0.1C: ≥ 125 mAh/g

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