Silicon Carbon Single Side Coated Cathode Electrode Disc Description
Silicon Carbon Single Side Coated
Cathode Electrode Disc is an advanced electrode material designed to meet the
high energy density demands of next-generation lithium-ion batteries. It
consists of a conductive substrate, such as copper or aluminum, coated on one
side with a carefully engineered composite of silicon and carbon. The silicon
component provides a high theoretical specific capacity, significantly boosting
the energy storage capability of the electrode. However, due to silicon’s
natural tendency to expand and contract during charge/discharge cycles, it is
combined with carbon, which serves to buffer the volume changes and enhance
overall structural stability.
The carbon matrix also improves
electrical conductivity, helping maintain efficient charge transfer and
minimizing internal resistance. This single-sided coating design is especially
advantageous in layered cell architectures, where controlled material
distribution and interface contact are critical for consistent performance. The
Disc form factor ensures compatibility with various battery assembly methods
and is often used in research, prototyping, or specialty energy storage
systems.
This electrode is ideal for applications
requiring high capacity, compact size, and long cycle life, such as electric
vehicles, drones, consumer electronics, and energy-dense portable devices. Its
optimized performance characteristics support fast charging, extended
operational lifespan, and stable electrochemical behavior under demanding usage
conditions.
Silicon Carbon Single Side Coated Cathode Electrode Disc Applications
1. Lithium-Ion Batteries: Used as a high-capacity anode
material (despite the "cathode" naming, silicon-carbon is typically
applied on the anode side) in advanced lithium-ion cells for enhanced energy
density.
2. Electric Vehicles (EVs): Supports extended driving range
and fast charging in EV battery packs due to its high specific capacity and
cycling stability.
3. Consumer Electronics: Ideal for smartphones, laptops, and
tablets requiring compact, lightweight batteries with long life and high power
output.
4. Drones and UAVs: Offers high energy-to-weight ratio and
durability for aerial systems where efficiency and endurance are critical.
5. Energy Storage Systems (ESS): Enhances performance in
grid-level or backup energy storage where high cycle life and reliability are
needed.
6. Wearable Devices: Suitable for small, high-performance
batteries in wearables due to its thin form factor and stable electrochemical
behavior.
7. Battery R&D and Prototyping: Frequently used in
academic and commercial research for testing next-gen lithium-ion battery
formulations and architectures.
Silicon Carbon 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.
Silicon Carbon Single Side Coated Cathode Electrode Disc FAQs
Q1. What are the advantages of using silicon-carbon
materials?
They offer much higher capacity than traditional graphite
anodes, improved cycle life, and better charge/discharge efficiency due to the
carbon matrix buffering silicon's volume expansion.
Q2. Why is the coating only on one side?
Single-side coating allows better control of active material
distribution and is preferred in certain battery designs to optimize layering
and reduce material stress.
Q3. What are the typical applications?
This electrode Disc is used in high-performance lithium-ion
batteries for EVs, consumer electronics, drones, wearables, and energy storage
systems.
Related Information
1. Common Preparation Methods
The preparation of the Silicon
Carbon Single Side Coated Cathode Electrode Disc begins with the selection of a
clean, conductive metal substrate, typically copper or aluminum foil, depending
on the intended battery chemistry. A silicon-carbon slurry is formulated by
mixing silicon nanoparticles, conductive carbon additives (such as carbon black
or graphene), binders like polyvinylidene fluoride (PVDF), and a solvent such
as N-methyl-2-pyrrolidone (NMP). This slurry is homogenized using ball milling
or high-shear mixing to ensure uniform dispersion of all components. The
resulting mixture is then coated onto one side of the metal foil using
techniques such as doctor blade, slot-die, or roll-to-roll coating. After
coating, the electrode passes through a drying oven to evaporate the solvent
and partially cure the binder. Thermal calendaring may be used to compress the
active layer, reduce porosity, and improve adhesion and electrode density.
Finally, the coated foil is cut into circular Disc shapes and may undergo
vacuum drying and weighing before being assembled into cells or used in
electrochemical testing. Throughout the process, thickness, coating uniformity,
and surface quality are carefully monitored to ensure consistent
electrochemical performance and mechanical stability.
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