Cathodes, Anodes, and Electrolytes
NEI offers a variety of cathode and anode electrode sheets 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. NEI can also customize tape specifications (such as loading, thickness, binder, & collector) for an additional fee. Request your quote today!
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.
Electrode Sheets brochure
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 offers cast electrode sheets of it’s standard Lithium Titanate powder, as well as Carbon-coated Lithium Titanate.
NANOMYTE® BE-10E is a cast electrode tape of Lithium Titanate powder, with the following specifications:
NANOMYTE® BE-10CE is a cast electrode tape of Carbon-coated Lithium Titanate powder, with the following specifications:
*NEW* – NEI now offers cast electrode tapes 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 addressed at 4 mAh/cm2 loading and demonstrated excellent cycling stability at 0.2C rate.
NANOMYTE® BE-150E is a cast electrode tape of Silicon-graphite composite powder, with the following specifications:
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.
*NEW* – NEI now offers cast electrode tapes of Niobium Oxide (Nb2O5), 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.
NANOMYTE® BE-400E is a cast electrode tape of Niobium Oxide powder, with the following specifications:
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 is a cast electrode tape of LCO powder, with the following specifications:
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.
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, with the following specifications:
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, with specifications as follows:
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 is a cast electrode tape of LFP powder, with the following specifications:
*NEW* – NEI now offers cast electrode tapes of Sublimed Sulfur. 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, with the following specifications:
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.
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