High Performance Battery Materials

Cathodes, Anodes, and Electrolytes

Cathode Materials for Lithium-ion Batteries

Cathode materials are the main component of Li-ion batteries; they determine the energy density of a cell through cell voltage and / or capacity. Lithium ion batteries are typically based on intercalation / deintercallation compounds, where lithium ions provided by the cathode are inserted into the host lattice (anode) during charge and extracted during discharge, with a minimal structural change in the host material. The choice of cathode material with a particular chemistry depends on various factors, including cell voltage, capacity, energy and power capabilities, cycle life, and temperature of operation.

NEI provides a variety of cathode materials, suitable for a wide range of applications, that are available for purchase as both powders and cast electrode tapes. We also provide customized cathode materials based on customer needs.

NANOMYTE® Cathode Powders

Our battery materials are produced through a scalable and economical solid state synthesis process, which is adaptable to different materials compositions and particle morphologies. In addition to supplying the standard cathode compositions listed below, we can custom produce any lithium battery material composition of your choice – oxide, sulfide, and carbon coated.

Lithium Cobalt Oxide (LCO) Powders »

*Coming Soon* Lithium Cobalt Oxide (LiCoO2) 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.

Lithium Manganese Oxide (LMO) Powders »

Lithium manganese oxide (LiMn2O4) 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.

Lithium Nickel Cobalt Aluminum Oxide (NCA) Powders »

Lithium nickel cobalt aluminum oxide (LiNi0.8Co0.15Al0.05O2) 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.

Custom Cathode Materials »

NEI specializes in developing new compositions and particle morphologies (including nanoscale particle engineering) and has been a long trusted source for customized cathode (and anode) materials used in lithium-ion batteries.

NANOMYTE® Cathode Electrode Sheets

NEI’s standard electrode sheets are offered in economical, ready-to-ship packages of 2, 5, and 10 sheets (per material). Our standard cathode tapes are cast on 5 inch x 10 inch sheets of aluminum foil, single-side coated with a 90% active material loading (~2 mAh/cm2 capacity). For an additional fee, NEI can also customize tape specifications to accommodate different active material loadings, coating thickness, binder type (aqueous/non-aqueous), and binder content, as well as choice of current collector. If ordered with an anode, loading will be matched with an anode/cathode capacity ratio of 1.2 (unless specified otherwise). Request your quote today!

Lithium Manganese Oxide (LMO) Tapes »

Lithium manganese oxide (LiMn2O4) 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.

Lithium Nickel Cobalt Aluminum Oxide (NCA) Tapes »

Lithium nickel cobalt aluminum oxide (LiNi0.8Co0.15Al0.05O2) 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.

Lithium Manganese Nickel Oxide (LMNO / Spinel) Tapes »

Lithium manganese nickel oxide / spinel (LiMn1.5Ni0.5O4) 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.

Lithium Cobalt Oxide (LCO) Tapes »

*Coming Soon* Lithium Cobalt Oxide (LiCoO2) 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.

Lithium Nickel Manganese Cobalt Oxide (NMC) Tapes »

*Coming Soon* Layered Lithium Nickel Manganese Cobalt Oxide (LiNixMnyCozO2) 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.

Lithium Iron Phosphate (LFP) Tapes »

*Coming Soon* Lithium Iron Phosphate (LiFePO4) 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.