AC6763 LiNiCoMnO2 (NCM811) Double Side Coated Aluminum Foil

LiNiCoMnO2 (NCM811) Double Side Coated Aluminum Foil Description

LiNiCoMnO2 (NCM811) double side coated aluminum foil is a high-performance cathode material widely used in advanced lithium-ion batteries, known for its excellent energy density and electrochemical properties. The active material, lithium nickel cobalt manganese oxide with an 8:1:1 molar ratio, features a high nickel content that significantly increases the specific capacity, typically reaching around 190 to 200 mAh/g. By coating both sides of the aluminum foil substrate—usually 15 to 20 microns thick—with NCM811 active material, the overall electrode achieves a higher loading of active material per unit area, effectively boosting the battery’s energy output without increasing size or weight.

The layered crystal structure of NCM811 facilitates efficient lithium-ion intercalation and deintercalation, supporting high-rate capability and excellent cycling stability. This layered oxide also demonstrates improved thermal stability compared to earlier high-nickel cathodes, which enhances battery safety during prolonged use or high-demand applications. The double side coating helps optimize the electrode’s mechanical strength and electrical conductivity, often supported by conductive carbon additives and polymer binders like polyvinylidene fluoride (PVDF) that ensure good adhesion and flexibility.

Despite challenges related to higher nickel content, such as potential capacity fading and thermal sensitivity, advancements in material synthesis and electrode processing have mitigated these issues, resulting in a cathode material that balances high energy density with long-term durability. Consequently, NCM811 double side coated aluminum foil is widely favored for use in electric vehicles, portable electronics, and large-scale energy storage, meeting the increasing demands for power, efficiency, and safety in modern lithium-ion batteries.

LiNiCoMnO2 (NCM811) Double Side Coated Aluminum Foil Applications

LiNiCoMnO2 (NCM811) double side coated aluminum foil is extensively used in high-performance lithium-ion batteries for electric vehicles, where its high energy density and power output help extend driving range and improve acceleration. It is also commonly employed in portable electronic devices such as smartphones, laptops, and tablets due to its stable cycling performance and lightweight design. Additionally, this cathode material is used in large-scale energy storage systems for renewable energy integration, grid stabilization, and backup power solutions, benefiting from its long cycle life and enhanced safety features. Overall, NCM811 double side coated aluminum foil is ideal for applications demanding high capacity, reliability, and efficient energy storage.

LiNiCoMnO2 (NCM811) Double Side Coated Aluminum Foil Packaging

Our products are packaged in customized cartons of various sizes based on the material dimensions. Small items are securely packed in PP boxes, while larger items are placed in custom wooden crates. We ensure strict adherence to packaging customization and the use of appropriate cushioning materials to provide optimal protection during transportation.

Packaging: Carton, Wooden Box, or Customized.

Kindly review the packaging details provided for your reference.

Manufacturing Process

1.       Testing Method

(1)    Chemical Composition Analysis - Verified using techniques such as GDMS or XRF to ensure compliance with purity requirements.

(2)    Mechanical Properties Testing - Includes tensile strength, yield strength, and elongation tests to assess material performance.

(3)    Dimensional Inspection - Measures thickness, width, and length to ensure adherence to specified tolerances.

(4)    Surface Quality Inspection - Checks for defects such as scratches, cracks, or inclusions through visual and ultrasonic examination.

(5)    Hardness Testing - Determines material hardness to confirm uniformity and mechanical reliability.

Please refer to the SAM testing procedures for detailed information.

LiNiCoMnO2 (NCM811) Double Side Coated Aluminum Foil FAQs

Q1. Why is NCM preferred for high-energy applications?

NCM offers high energy density (>400 Wh/kg) and customizable electrochemical properties. For example, NCM811 delivers ~250 mAh/g capacity, ideal for electric vehicles (EVs). Advanced modifications, such as sodium phytate coatings, enhance thermal stability, delaying thermal runaway by 45% (from 125.9°C to 184.8°C).

Q2. What are the challenges of high-nickel NCM?

High nickel content (e.g., NCM811) increases energy density but risks oxygen loss at high voltages (>4.5V), causing phase transitions and microcracks. Solutions include high-entropy doping (Ti, Mg, Nb) to reduce strain (<0.5%) and coatings to suppress oxygen release.

Q3. What future advancements are expected?

Cobalt-free designs: Using Al or rare earths to reduce costs.

Ultra-high voltage: Stable operation up to 4.9V with advanced electrolytes.

Hybrid systems: NCM-based supercapacitors for rapid energy delivery.

Related Information

1.       Common Preparation Methods

The preparation of LiNiCoMnO2 (NCM811) double side coated aluminum foil begins with the synthesis of the NCM811 active material through a co-precipitation method, where nickel, cobalt, and manganese salts are combined in an 8:1:1 molar ratio to form a hydroxide precursor. This precursor is then washed, dried, and calcined at high temperatures with lithium sources such as lithium carbonate to develop the layered oxide structure. The synthesized powder is mixed with conductive carbon additives and a polymer binder like polyvinylidene fluoride (PVDF) dissolved in a solvent such as N-methyl-2-pyrrolidone (NMP) to form a homogeneous slurry. This slurry is then coated onto both sides of an aluminum foil substrate using techniques like doctor blade or slot-die coating. After coating, the foil is dried to remove solvents and calendared to improve electrode density and adhesion. Finally, the double side coated foil is cut or punched into desired sizes for use as cathodes in lithium-ion battery assembly, ensuring optimal mechanical strength, electrical conductivity, and electrochemical performance.