Emulsion Method PVDF Resin for Lithium-Ion Battery Binder Sinodur®PVDF2520、2520A

Anpu New Energy Technology Co., Ltd. was established in 2017 and specializes as a trader of lithium-ion battery materials.We are one of the largest and most successful traders of lithium battery materials in China. We represent the best lithium battery material brands in China, such as PVDF (electrode adhesive PVDF powder), SP (conductive carbon black), CMC (sodium carboxymethyl cellulose), etc. We cooperate with the top ten customers in the fields of energy storage batteries, power batteries, and electric tool batteries.

Test Standards		Unit	Sinodur® 2520	Sinodur® 2520A
Exterior condition	Visual assessment	-	White powder	White powder
Weight average molecular weight	GPC*	Da	60-100W	90-110W
Moisture content	GB/T 6283	ppm	≤1000	≤1000
Melting point	ASTM D3418	℃	158-166	160-166
Solution viscosity(7 wt%)	GB/T 10247	mPa.s	1000-3000	3000-5000

Product Description

Sinodur®PVDF resin has independent intellectual property rights, and its products coverthe LiBs fields such as LFR, NCM and separator field. With its high bonding, strong alkali resistance and high safety characteristics, it has become the prefened choice of domestic LIBs top enterprises. It has been certified as "international leading" by China Petroleumand Chemical Federation.Typical products list includes Sinodur®PVDF2536 which is used in high- end 3C digital andpower batteries; Sinodur®PVDF25630 used in NCM/NCA with high alkaline resistantence .which is used in high energy density power batteries, other universal products such as Sinodur®PVDF2520/Sinodur®PVDF 2520A and Sinodur®PVDF 25628; battery separator coated highbonding product Sinodur®PVDF 2707, which has full coverage of mainstream cathode systems;all of these products have been approved by batteries customers and work well.

Product Features

Emulsion Method PVDF Resin
Suitable for Lithium-Ion Battery Binder
Sinodur®PVDF2520 and 2520A variants
Extracts core without expansion
High-quality binder for Lithium-Ion Batteries

Application of Emulsion Method PVDF Resin for Lithium-Ion Battery Binder

High-performance binder for Lithium-Ion Battery production
Specially designed for the Emulsion Method
Enhances battery performance and stability
Provides excellent adhesion between electrode materials
Improves battery cycling efficiency and lifespan
Ensures uniform coating on electrode materials
Facilitates rapid ion transfer and high energy density
Optimizes battery performance in various operating conditions
Compatible with different Lithium-Ion Battery configurations
Used in the manufacturing of advanced energy storage solutions
Sinodur®PVDF2520、2520A are PVDF prepared by emulsion method, suitable for lithium batteries in the lithium iron phosphate system, applicable to energy storage batteries, high-rate batteries, power tool batteries, small power batteries and other projects, with strong universality and high cost performance.

Sinodur®PVDF2520

1. Necessary features project: This material is a binder for lithium-ion batteries, with balanced slurry stability and peel strength. The product needs to meet the necessary features specified in Table

Project	Unit	Standard	Test Method
Appearance	--	White Powder	Visual Inspection
Melting Point	℃	158~166	ASTM D3418
Molecular Weight	Da	60~100 W	GPC, relative to PS
Water Content	ug/g	≤400	GB/T 6283
Volatile Matter	%	≤0.20	GB/T 6284
NMP Solution Viscosity (7wt%)	mPa.s	1000~3000	GB/T 10247

2.Instructions for use:

2.1. Recommended dosage of Sinodur® 2520 LFP system: 1.8%-2.5%; Note: PVDF is mainly used to bond positive electrode material particles, and the dosage is mainly determined based on the density and specific surface area of the positive electrode material.

2.2. Instructions for use When using wet bonding, quickly mechanically stir for 3-4 hours. If the equipment stirring rate is slow or the stirring is uneven and cannot completely dissolve, the stirring time can be increased by 0.5-1.0 hours appropriately. After the PVDF is completely dissolved, proceed to the pulping process. When dry pulping, mix the positive electrode material, carbon black, and PVDF for 0.5-1 hour, add solvent kneading for 20-40 minutes, then high-speed stir for 3-4 hours, adjust the slurry viscosity output according to coating requirements.

2.3. Product storage This product is recommended to be stored in dry and ventilated conditions, avoiding light and heat.

2.4. Others For other special usage and storage conditions, please communicate with our relevant personnel in a timely manner.

3. Provide third-party testing standards (mainly harmful substance testing): Comply with ROHS regulations, REACH regulations harmful substance control standards; Provide material MSDS; Provide a resin halogen content detection report; Provide RoHS test report, or provide a "No RoHS restricted material guarantee certificate"; Provide REACH test report, or provide a "No REACH restricted material guarantee certificate".

4. Packaging method: sealed with inner plastic bag, sealed packaging with hard kraft paper square barrel. 20kg/barrel, 500kg/pallet.

5. Product identification: The Chinese markings on the packaging surface should indicate the following: A. Product name and specifications B. Net weight C. Production date D. Batch number E. Supplier name and trademark F. MSDS

6. Transportation and storage: Limit the impact and vibration of materials during handling to a minimum Avoid exposure to sunlight and fire during transportation and storage; Storage environment should be clean, at room temperature, dry, sealed, and avoid contamination by chemical fumes and drug particles. If there are special circumstances, such as products being exposed to high humidity for a long time after opening, it is recommended to dry at 60-80°C before use.

7. Quality shelf life: The shelf life of the product is 3 years from the date of production.

8. Inspection report: The supplier of this product should provide a product report for each batch of products, including the product name, production batch number, production date, quantity, and inspection results.

9. Manufacturing equipment, manufacturing conditions, or process changes: In the manufacturing process of the products provided, if there are major changes in the main raw materials, manufacturing equipment, and manufacturing conditions involved in the production process, Party B should obtain the consent of Party A before making any changes.

Sinodur®PVDF2520A

1. Essential Characteristics Project: This material is a binder for lithium-ion batteries, with balanced slurry stability and peel strength. The product needs to meet the essential characteristics specified in Table 1.

Project	Unit	Standard	Testing method
Appearance	--	White powder	Visual inspection
NMP solution viscosity (7wt%)	mPa.s	3000~5000	GB/T 10247
Melting point	℃	160~166	ASTM D3418
Water content	ug/g	≤400	GB/T 6283
Volatile matter	%	≤0.20	GB/T 6284
Particle size D50	um	≤20	GB/T 19077-2016
Metal element content Fe/Co/Ni/Cu/Zn/Cr/Ca	ppm	ndividual ≤10 Total ≤20	ICP

2. Recommendations for Use:

2.1. Recommended Dosage of Sinodur® 2520A LFP System: 1.8%-2.5%; Note: PVDF is mainly used to bond the positive electrode material particles, and the dosage is mainly determined based on the density and specific surface area of the positive electrode material.

2.2. Instructions for Use When wet-gluing, first quickly mechanically stir for 2-3 hours. If the equipment stirring rate is slow or uneven stirring prevents complete dissolution, you can increase the stirring time by 0.5-1.0 hours, until the PVDF is completely dissolved before entering the pulping process. For dry pulping, mix the positive electrode material, carbon black, and PVDF for 0.5-1 hour, add solvent kneading for 20-40 minutes, then high-speed stir for 3-4 hours, adjusting slurry viscosity output according to coating requirements.

2.3. Product Storage It is recommended to store this product in dry, ventilated conditions, avoiding light and heat.

2.4. Others For other special use and storage conditions, please communicate promptly with our relevant personnel.

3. Provide third-party testing standards (mainly hazardous substance testing): Comply with RoHS regulations, REACH regulations on hazardous substance control standards; Provide material MSDS; Provide a testing report on resin halogen content; Provide RoHS testing report, or provide a "Non-Use of RoHS Restricted Materials Guarantee Certificate"; Provide REACH testing report, or provide a "Non-Use of REACH Restricted Materials Guarantee Certificate".

4. Packaging: Sealed plastic bag inside, sealed packaging in a hard cowhide paper square barrel. 20kg/barrel, 500kg/pallet.

5. Product Labeling: The product packaging surface should have Chinese labels indicating the following: A. Product name and specifications B. Net weight C. Production date D. Production batch number E. Supplier name and trademark F. MSDS

6. Transportation and Storage: Limit the impact and vibration of the material during handling to a minimum Avoid exposure to sunlight and fire during transportation and storage; The storage environment should be clean, at room temperature, dry, sealed, and avoid contamination by chemical aerosols and drug particles. If there are special circumstances, such as unpacked products exposed to high humidity for a long time, it is recommended to dry at 60-80°C before use.

7. Shelf Life: The product has a shelf life of 3 years from the date of production.

8. Inspection Report: The supplier of this product must provide a product report for each batch of products, including the product name, production batch number, production date, quantity, and inspection results.

9. Manufacturing Equipment, Manufacturing Conditions, or Process Changes: During the manufacturing process of the products provided, if there are significant changes in the main raw materials, manufacturing equipment, or manufacturing conditions, Party B must obtain the consent of Party A before making any changes.