Editorial Technical Reference

Lithium Nickel Manganese Cobalt Oxide Cathode Active Material

This page explains how Lithium Nickel Manganese Cobalt Oxide Cathode Active Material is classified within Manufacture of Batteries and Accumulators. Technical values and manufacturer relationships are research references; confirm the current specification and supplier evidence for each order.

Technical Definition & Core Assembly

Lithium Nickel Manganese Cobalt Oxide (NMC) is a critical cathode active material used in lithium-ion battery manufacturing.

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Product Specifications

Technical details and manufacturing context for Lithium Nickel Manganese Cobalt Oxide Cathode Active Material

Definition
Lithium Nickel Manganese Cobalt Oxide (NMC) is a critical cathode active material used in lithium-ion battery manufacturing. This ternary compound powder provides the electrochemical potential and lithium-ion storage capacity for the positive electrode. It is a key raw material purchased by battery cell producers for electrode slurry preparation. Its balanced composition offers a compromise between energy density, power capability, and thermal stability, making it suitable for various applications from consumer electronics to electric vehicles. The material is characterized by a specific capacity of 155–175 mAh/g, a tap density of 2.2–2.6 g/cm³, a median particle size (D50) of 10–15 μm, and a BET surface area of 0.2–0.5 m²/g. The typical Ni:Mn:Co ratio is 5:3:2, and the powder has a moisture content of ≤0.05 ppm, a pH value of 10.5–11.5, and a first cycle efficiency of 85–90% at 0.1C. The maximum operating temperature is 45–55°C, and storage temperature is 10–35°C. Sulfur content is ≤0.03%, and magnetic impurities are ≤50 ppb. These values are reference ranges and must be verified for the specific product model. The material is supplied as a powder and is used in the production of positive electrodes for lithium-ion cells. It is not a finished product but a raw material that requires further processing. Buyers should confirm the exact specifications with the supplier, as variations in composition and processing can affect performance. The material should be stored in a dry, ventilated area to prevent moisture absorption and degradation. It is essential to handle the powder with care to avoid contamination and ensure safety.
Working Principle
During battery charging, lithium ions de-intercalate from the NMC crystal structure and migrate through the electrolyte to the anode. During discharge, lithium ions re-intercalate into the NMC structure, releasing electrical energy through redox reactions involving nickel, manganese, and cobalt ions. The nickel provides high capacity, manganese enhances stability and safety, and cobalt improves rate capability and structural integrity. The balanced ratio of these elements allows for a trade-off between energy density, power, and thermal stability. The material's electrochemical performance is influenced by its particle size, surface area, and crystal structure, which are controlled during synthesis. The working principle is fundamental to the operation of lithium-ion batteries, where the cathode material determines the cell's voltage and capacity.
Common Materials
Lithium Carbonate, Nickel Sulfate, Manganese Sulfate, Cobalt Sulfate
Technical Parameters
ParameterTypical rangeNotes & selection driver
Specific CapacityRequired155–175 mAh/gTheoretical electrochemical capacity per gram
Tap DensityRequired2.2–2.6 g/cm³Packed powder density after tapping
Particle Size D50Required10–15 μmMedian particle diameter
BET Surface AreaRequired0.2–0.5 m²/gSpecific surface area measured by nitrogen adsorption
Ni:Mn:Co RatioRequired5:3:2 ratioMolar ratio of nickel, manganese, and cobalt (e.g., 6:2:2)
Moisture Content≤0.05 ppmResidual water content in powder
pH Value10.5–11.5Alkaline; affects slurry stability
First Cycle Efficiency85–90 %At 0.1C charge/discharge
Maximum Operating Temperature45–55 °CAbove this accelerates degradation
Storage Temperature10–35 °CStore in dry, ventilated area
Sulfur Content≤0.03 %High sulfur may cause odor and corrosion
Magnetic Impurities≤50 ppbLow for safety

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Components / BOM
  • Active NMC Particles Part
    Provides lithium-ion intercalation sites
    Material: Lithium Nickel Manganese Cobalt Oxide
  • Carbon Conductive Additive Part
    Enhances electronic conductivity within electrode
    Material: Carbon Black or Graphite
  • Polymer Binder Part
    Binds active material particles to current collector
    Material: Polyvinylidene Fluoride (PVDF)

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Lithium Nickel Manganese Cobalt Oxide Cathode Active Material.

NMC Cathode Material Ternary Cathode Powder LiNiMnCoO2

Industrial Ecosystem & Supply Chain Structure

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
pressure: Atmospheric to 1 bar gauge (typical slurry processing)
other spec: Slurry concentration: 40-60% solids by weight, viscosity: 500-2000 mPa·s (at shear rate 100 s⁻¹)
temperature: -20°C to 60°C (operational), 80°C max (short-term exposure)
Media Compatibility
✓ N-Methyl-2-pyrrolidone (NMP) solvent systems ✓ Aqueous PVDF binder systems ✓ Carbon black conductive additives
Unsuitable: Strong acidic or alkaline aqueous environments (pH <4 or >10)
Sizing Data Required
  • Required battery capacity (Ah)
  • Target energy density (Wh/kg)
  • Electrode coating thickness specification (μm)

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Cathode Structural Degradation
Cause: Mechanical stress from repeated lithium-ion intercalation/deintercalation cycles leads to particle cracking, phase transitions, and loss of electrical contact, exacerbated by high operating temperatures and overcharging.
Transition Metal Dissolution
Cause: Electrolyte decomposition at high voltages (>4.3V vs. Li/Li+) generates acidic species that leach manganese and cobalt ions from the cathode lattice, causing capacity fade and internal short circuits via metal deposition on the anode.
Maintenance Indicators
  • Rapid capacity fade (>20% per 100 cycles) or sudden voltage drop during discharge, indicating severe cathode degradation or internal short circuits.
  • Abnormal heat generation or thermal runaway symptoms during charging/discharging, signaled by temperature sensors exceeding safe limits (typically >60°C).
Engineering Tips
  • Implement strict voltage window control (e.g., 3.0-4.2V) and temperature management (<45°C) via battery management systems to minimize lattice stress and electrolyte decomposition.
  • Use electrolyte additives (e.g., vinylene carbonate) and surface coatings (e.g., Al2O3) on cathode particles to suppress transition metal dissolution and stabilize the cathode-electrolyte interface.

Indicative industry ranges for design and RFQ preparation. Confirm the exact figures and applicable standard with the manufacturer before specifying.

Compliance & Manufacturing Standards

Applicable Standards
ISO 12405-4:2018 (Electrically propelled road vehicles - Test specification for lithium-ion traction battery packs and systems - Part 4: Performance testing) ASTM E252-06(2021) (Standard Test Method for Thickness of Thin Foil and Film by Mass Measurement) IEC 62660-1:2018 (Secondary lithium-ion cells for the propulsion of electric road vehicles - Part 1: Performance testing)

Quoted from the published standard.

Manufacturing Precision
  • Particle Size Distribution: D50 +/- 0.5 μm
  • Tap Density: +/- 0.05 g/cm³
Quality Inspection
  • X-ray Diffraction (XRD) for crystal structure and phase purity
  • Inductively Coupled Plasma Optical Emission Spectroscopy (ICP-OES) for elemental composition and impurity levels

Manufacturers of Lithium Nickel Manganese Cobalt Oxide Cathode Active Material

Manufacturer profiles associated with Lithium Nickel Manganese Cobalt Oxide Cathode Active Material.

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Frequently Asked Questions

What is the typical Ni:Mn:Co ratio for this NMC material?

The typical ratio is 5:3:2, but other ratios may be available. Always confirm the exact ratio with the supplier for your application.

What is the recommended storage condition for this powder?

Store in a dry, ventilated area at 10–35°C. Avoid exposure to moisture and high temperatures to prevent degradation.

How is the specific capacity measured?

Specific capacity is measured in mAh/g and is typically 155–175 mAh/g. This value is theoretical and may vary with test conditions; verify with the supplier.

What are the safety considerations when handling this material?

The material is alkaline (pH 10.5–11.5) and may cause irritation. Use appropriate personal protective equipment and avoid inhalation of dust. Follow the supplier's safety data sheet.
Data basis: editorial classification, named public sources where available, and source-reviewed manufacturer records. See the editorial policy.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records.

Preliminary Technical Classification
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