قرص الكاثود أحادي الجانب المطلي AC6728 LiFePO4 (LFP)

LiFePO4 (LFP) Single-Side Coated Cathode Electrode Disc Description

LiFePO4 (LFP) Single-Side Coated Cathode Electrode Disc is a specialized component used in lithium-ion batteries, where a uniform layer of lithium iron phosphate is coated on one side of a conductive substrate, typically aluminum foil. This configuration ensures efficient electron transport and structural stability during battery operation. LFP is renowned for its excellent thermal stability and inherent safety characteristics, which make it less prone to overheating and thermal runaway compared to other cathode materials.

The electrochemical properties of LFP offer a stable operating voltage around 3.4 V versus Li/Li⁺ and a flat discharge curve, contributing to reliable energy delivery and long cycle life. These features make LFP cathodes particularly suitable for applications where safety and durability are prioritized over maximum energy density, such as in electric vehicles, energy storage systems, and portable electronics.

The manufacturing process involves preparing a slurry by mixing LFP powder with conductive additives (e.g., carbon black) and binders (such as PVDF) dissolved in solvents. This slurry is then coated on one side of aluminum foil, dried to remove solvents, and calendared to achieve the desired thickness and density. The single-side coating allows for precise control of electrode thickness and uniformity, critical for consistent battery performance. The LFP single-side coated cathode Disc is widely used in research, prototyping, and development of advanced lithium-ion battery cells.

LiFePO4 (LFP) Single-Side Coated Cathode Electrode Disc Applications

1. Electric Vehicles (EVs): Used in battery packs for EVs due to excellent safety and long cycle life.

2. Energy Storage Systems (ESS): Ideal for renewable energy storage and grid stabilization applications.

3. Portable Electronics: Suitable for laptops, tablets, and power tools requiring stable performance and safety.

4. Electric Bicycles and Scooters: Provides reliable power and durability in light electric mobility devices.

5. Battery Research and Development: Commonly used in labs for prototype cells and performance testing.

6. Uninterruptible Power Supplies (UPS): Ensures dependable backup power with long service life.

7. Medical Devices: Preferred for devices requiring high safety standards and consistent energy delivery.

LiFePO4 (LFP) Single-Side Coated Cathode Electrode Disc 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.

LiFePO4 (LFP) Single-Side Coated Cathode Electrode Disc FAQs

Q1. What is the main advantage of using LiFePO₄ as a cathode material?

LiFePO₄ offers outstanding thermal and chemical stability, excellent safety, long cycle life, and consistent discharge voltage.

Q2. Why is the electrode coated only on one side?

Single-side coating is commonly used for laboratory testing and prototyping, allowing better control over cell configuration and electrochemical measurements.

Q3. What substrate is typically used for the electrode?

High-purity aluminum foil is used due to its conductivity, stability, and compatibility with LiFePO₄.

Related Information

1.       Common Preparation Methods

The preparation of the LiFePO₄ (LFP) Single-Side Coated Cathode Electrode Disc begins by formulating a slurry composed of lithium iron phosphate powder, a conductive additive such as carbon black, and a binder like polyvinylidene fluoride (PVDF) dissolved in a solvent such as N-methyl-2-pyrrolidone (NMP). This slurry is mixed thoroughly to ensure uniform dispersion of all components and appropriate viscosity for coating. The resulting homogeneous mixture is then applied onto one side of a high-purity aluminum foil using precision coating techniques like doctor blade or slot-die coating. After coating, the foil is dried under controlled conditions to evaporate the solvent and solidify the electrode layer. The dried electrode is subsequently calendared to adjust its thickness and density, improving mechanical integrity and electrical performance. Finally, the coated foil is cut into Disc shapes suitable for use in laboratory-scale lithium-ion battery cells. The final product is inspected for coating uniformity, adhesion, and electrochemical quality before application in research and prototyping environments.