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.
