PEO MW 300k (CAS 25322-68-3) is linear water-soluble polyether polymer powder. After dissolving in deionized water, it forms flexible polymer network to connect electrode active material particles. It enhances adhesion between coating layer and copper/aluminum foil, reduces pole piece crack risk during calendaring. It possesses stable electrochemical performance and low impurity content, serving as an ideal water-processed binder raw material for energy storage electrode manufacturing.

Product Detail

Product Overview

PEO MW 300k Polyethylene Oxide (CAS 25322-68-3) is medium molecular weight water-soluble polymer customized for new energy electrode manufacturing. Low molecular weight PEO cannot provide enough binding force, while ultra-high molecular weight PEO causes excessive slurry viscosity and difficult coating. This 300k grade balances viscosity and adhesive capacity. Uniformly dispersed in aqueous electrode slurry, it fixes active substances and conductive agents. It effectively relieves pole piece curling and cracking during coating, drying and calendaring. In battery working environment, it maintains electrochemical inertia without triggering side reactions.

Key Features

Molecular Weight: 300,000, CAS 25322-68-3, white free-flowing powder
Superior water solubility, suitable for solvent-free water-based electrode production
Reliable binding property to strengthen electrode coating adhesion
Boost pole piece flexibility, lower cracking rate in calendaring process
Strictly controlled impurities, stable electrochemical performance
Good compatibility with conductive carbon, anode and cathode active materials
Moderate slurry viscosity, convenient for continuous coating production

Main Applications

Water-based binder for lithium ion battery cathode and anode electrode
Slurry additive for sodium ion battery pole piece manufacturing
Forming binder for supercapacitor electrode coating
Functional polymer for various energy storage device electrode materials

Usage Guidance

Gradually disperse PEO powder into continuously agitated deionized water to prevent agglomeration, stir until fully dissolved into homogeneous solution. Mix with active materials and conductive agents to prepare electrode slurry. Recommended dosage: 1.0 wt% ~ 3.0 wt% based on active material mass. Carry out lab coating and electrochemical performance testing before mass production to confirm optimal addition amount.

Storage & Package

Seal packaging tightly. Store in cool, dry, dust-free warehouse. Avoid moisture absorption, high temperature and direct sunlight. Standard package: 25kg kraft paper bag with inner PE liner. Shelf life: 12 months under proper storage.

Service Support

Test samples are available for laboratory research. Stable bulk supply. We provide technical support for water-based electrode slurry formulation. Welcome to inquire TDS, COA and factory quotation.

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PEO MW 300k CAS 25322-68-3 Binder for Battery Electrode Coating

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Jishengya Technology

Shenzhen Jishengya Technology Co., Ltd. is located in Shenzhen, a special economic zone, and is a comprehensive technology enterprise integrating independent R&D, production and sales.