Description
PVDF for Lithium Batteries is a high-purity fluoropolymer engineered for use as a binder and functional material in lithium-ion battery systems. It offers excellent electrochemical stability, strong adhesion, and high purity, supporting improved battery performance, safety, and long service life.
In lithium-ion battery manufacturing, material purity and stability directly impact battery capacity, cycle life, and safety. PVDF plays a critical role as a binder that holds active materials and conductive agents together while maintaining strong adhesion to current collectors. Our PVDF for lithium batteries is engineered to meet these stringent requirements.
From a chemical standpoint, PVDF exhibits outstanding electrochemical stability across a wide voltage window. It remains chemically inert during repeated charge–discharge cycles, preventing side reactions that could degrade electrode performance. This stability contributes to improved capacity retention and longer cycle life in lithium-ion cells.
This PVDF grade demonstrates excellent solubility and dispersion in commonly used battery solvents such as NMP (N-methyl-2-pyrrolidone). During slurry preparation, it forms uniform binder networks that evenly distribute active materials, ensuring consistent electrode coating thickness and mechanical integrity after drying and calendaring.
Adhesion performance is another critical factor. The optimized molecular structure of this PVDF resin provides strong bonding between electrode materials and aluminum or copper current collectors. As a result, electrodes exhibit improved mechanical strength and reduced risk of delamination during cycling, especially under high-rate charge and discharge conditions.
From a thermal and safety perspective, PVDF offers high thermal stability and excellent flame resistance. These characteristics help enhance battery safety under elevated temperature or abnormal operating conditions. In addition, the resin's low metal ion and moisture content minimizes contamination risks that could otherwise negatively affect battery performance.
Specification
|
PVDF HD9108 POWDER |
|||
|
Properties |
Test Method |
Unit |
HD9108 |
|
Average Particle Size |
Laser Sizer |
um |
Sifted<130 |
|
Melt Viscosity@230 Degree, 100S-1 |
ASTM D3835 |
Pa.S |
>2800 |
|
Density |
ASTM D792 |
g/cm3 |
1.77-1.78 |
|
Melting Point |
ASTM D3418 |
Degree |
164-172 |
|
Water Absorption |
ASTM D570 |
WT% |
≤0.01 |
|
Rotational Viscosity |
0.1g/ml NMP |
mPa.s |
>20000 |
|
LOI |
ASTM D2683 |
% |
43 |
|
Storage |
Stored in dry, clean and ventilated place. Avoid strenuous vibration, sunlight exposure, moisture and other impurity. |
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Typical Applications
● Lithium-ion battery cathode binders
● Lithium-ion battery anode binders
● Power batteries for electric vehicles
● Energy storage systems (ESS)
● Consumer electronics batteries
Advantages
● Features: High-purity PVDF resin, controlled molecular weight, excellent electrochemical stability.
● Advantages: Stable slurry processing, strong electrode adhesion, consistent coating quality.
● Benefits: Longer battery cycle life, improved capacity retention, enhanced safety, and higher manufacturing yield.
● Evidence: PVDF binders are widely adopted in commercial lithium-ion batteries for EVs, energy storage systems, and consumer electronics, with performance verified through extensive electrochemical testing.
This PVDF grade is suitable for various lithium battery chemistries and can be customized to meet specific viscosity, adhesion, and processing requirements.
Characteristics Platform
Quality Control
Packagings
25kg/woven bag, 800kg/pallet
Workshop Gallery
Customer Cases
FAQ
Q: Why is PVDF commonly used in lithium-ion batteries?
A: PVDF provides excellent electrochemical stability, strong adhesion, and chemical resistance, making it an ideal binder for battery electrodes.
Q: Is this PVDF suitable for both cathode and anode applications?
A: Yes. It can be used as a binder for both cathode and anode electrodes, depending on formulation and processing conditions.
Q: Does PVDF affect battery cycle life?
A: Yes. Stable binding and reduced electrode degradation help improve capacity retention and extend cycle life.
Q: Is the PVDF compatible with standard battery solvents?
A: Yes. It shows excellent solubility and dispersion in NMP and other commonly used battery solvents.
Q: Can the PVDF grade be customized for different battery requirements?
A: Yes. Molecular weight, viscosity, and purity can be adjusted to meet specific battery designs and manufacturing processes.
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