PVDF Binder for Li-ion Battery Electrodes

When testing the electrochemical performance of metal oxide anode for lithium-ion batteries (LIBs), binder played important role on the electrochemical performance. There are different types of binders used for Li-ion battery electrodes like polyvinylidene fluoride (PVDF) and the mixture of styrene butadiene and sodium carboxylmethyl cellulose (SBA + CMC). Here we will mention PVDF type binder.

Polyvinylidene fluoride (PVDF) is a highly non-reactive thermoplastic fluoropolymer produced by the polymerization of vinylidene difluoride. PVDF is a specialty plastic used in applications requiring the highest purity, as well as resistance to solvents, acids and bases.

PVDF resins are polymers currently widely used by Li-ion battery manufacturers as binder material, especially in cathodes. PVDF is the standard binder material used in the production of composite electrodes for lithium-ion batteries. 1−2% weight solution of PVDF dissolved in N-methyl-2-pyrrolidone (NMP) is mixed with an active lithium storage material such as graphite, silicon, tin, LiCoO2, LiMn2O4, or LiFePO4 and a conductive additive such as carbon black or carbon nanofibers. This slurry is cast onto a metallic current collector and the NMP is evaporated to form a composite or paste electrode. PVDF is used because it is chemically inert over the potential range used, and does not react with the electrolyte or lithium. PVDF electrochemically stable in contact with electrolyte mixtures.

PVDF binders’ usage in Li-ion battery electrodes have these benefits that you can see below:

Excellent resistance to adverse weather conditions over a wide range of temperatures
Excellent mechanical strength
Outstanding chemical resistance
Good processing performance and workability

This subject is an interesting to many people and of course there are some papers written by the scientists about this subject. You may look at the paper which is about the effect of different binders on the electrochemical properties metal oxide anode for lithium-ion batteries:

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5662525/

If you would like to give order of PVDF Binder for Li-ion Battery Electrodes you may click the link given below:

https://nanografi.com/battery-equipment/pvdf-binder-for-li-ion-battery-electrodes-set-80g/

Technical properties of our PVDF Binder for Li-ion Battery Electrodes are given below:

Technical Parameter	Unit	Index	Testing
Shape	/	White Powder	/
Purity	%	≥99.5	PVDF
standard specific gravity	/	1.74~1.77	ASTM D 792 @23/ 23℃
Dielectric constant	100MHz 100Hz	4.50~5.50 8.00~9.50	ASTM D150
Melting Point	℃	160-168	ASTM D 3418
Melting Indix	g/10min	1-2	/
Solubility	/	Transparent and dissolvable	30℃，1hr 1g/10ml NMP
Rotation Viscosity	mPaS	≥2000	1g/10ml NMP
Intrinsic Viscosity	dL/g	1.0-2.0	DMA， 30℃
Moisture	%	≤ 0.1	Karl Fischer
Molecular Weight	/	600,000	ASTM D 5296-05

Molybdenum Trioxide Nanoparticles/Nanopowder and Applications

General Information about Molybdenum Trioxide Molybdenum trioxide is chemical compound with the formula MoO3. Its chief application is as an oxidation catalyst and as a raw material for the production of molybdenum metal. Molybdenum Trioxide is a very light blue powder. Molybdenum Trioxide Nanoparticles/Nanopowder and Their Applications Like many nanoparticles/nanopowder , Molybdenum Trioxide nanoparticles/nanopowder are used as catalysts. These catalysis reactions include hydrogenation catalysis and cracking catalysis. Molybdenum Trioxide nanoparticles/ nanopowder are useful for...

Improving Dialysis Process with Graphene

Researchers from Mechanical and Electrical Engineering Departments of MIT recently showed that graphene is a powerful material candidate for use in the dialysis systems (such as hemodialysis machines in medical institutes for filtering human blood). In order to prepare graphene as a dialysis material, researchers used a procedure opposite to the general treatments that nanotechnology people use. Dialysis is a process of filtering different solutions such as human blood by a membrane in order to remove waste molecules, drugs, chemical residues from the solution. In some cases, the process can be used for purification of chemicals or isolation of different molecules for medical diagnosis. It is an essential process for scientists especially in the medical operations. Image Retrieved From: http://www.graphene-nownano.manchester.ac.uk/our-research/examples-of-current-projects/fundamental-science/use-of-graphene-as-bio-membrane/ The traditional membranes used in dialysis are thick ...

Graphene Oxide Dispersion

Graphene oxide refers to a mono-atomic layer material obtained when graphite crystals are oxidized. This is one of the graphene materials that are commercially available because of its ability to dissolve in water which makes the oxidation process suitable. In this article, we will talk about the synthesis, the properties and some of the applications of graphene oxide dispersion in water . Seven Properties of Graphene Oxide Dispersion The properties of a material are defined through its structure, however, this material is very peculiar, since there is no unambiguous model of this material. Graphene Oxide dispersion offers remarkable physical, chemical and mechanical properties that give the opportunity to new applications. Graphene Oxide is amorphous , but, in general, graphene oxide can be described as a two-dimensional sheet containing honeycomb carbon atoms with functional groups of hydroxide and oxygen, unlike the graphene model that seeks to completely re...

Nanografi Nanotechnology

Search This Blog