Polyethylene Oxide MW 10,000,000 (PEO 10M, CAS 25322-68-3) is linear ultra-high molecular weight high purity polyether polymer. As core base binder for solid-state battery electrolyte, PEO molecular chains coordinate with lithium salts and construct continuous lithium ion conduction pathways. It exhibits superior film-forming capability and robust mechanical properties to inhibit lithium dendrite formation. With stable electrochemical performance, it is a vital advanced polymer for manufacturing

Product Detail

Product Overview

Polyethylene Oxide MW 10,000,000 (CAS 25322-68-3) is high purity ultra-high molecular weight PEO customized for advanced solid-state energy storage devices. Medium molecular weight PEO cannot form stable ion conductive network; excessively high molecular weight grades lead to poor melt fluidity and difficult membrane processing. This 10M grade balances ionic conductivity, mechanical toughness and manufacturability.

When compounded with lithium salts and inorganic ceramic fillers, self-supporting solid electrolyte membrane can be fabricated. The polymer matrix separates cathode and anode while enabling lithium ion migration, eliminating liquid electrolyte leakage risk and significantly improving battery safety.

Key Features

Molecular Weight: 10,000,000, CAS 25322-68-3, white free-flowing fine powder
Rich ether oxygen groups, strong complexing capacity with various lithium salts
Form continuous lithium ion transport network to guarantee ionic conductivity
Outstanding film-forming property for self-standing solid electrolyte membranes
High mechanical strength to restrain lithium dendrite propagation
Good compatibility with LLZO, LATP and other ceramic ion conductors
Wide electrochemical stability window, suitable for solid-state cell assembly

Main Applications

Matrix binder for solid polymer electrolyte of lithium metal batteries
Ion-conductive raw material for all-solid-state lithium-ion batteries
Functional polymer for gel polymer lithium battery electrolyte
Advanced research material for next-generation lithium secondary batteries

Usage Guidance

Thoroughly dry PEO powder before production to eliminate residual moisture. Homogeneously blend with lithium salts and ceramic fillers under dry inert atmosphere. Prepare electrolyte membrane via hot pressing or solution casting. Carry out ionic conductivity testing, electrochemical stability testing and cell cycling evaluation. Strictly prevent moisture and air contamination throughout processing.

Storage & Package

Hermetic moisture-proof packaging. Store in low-humidity dry warehouse, isolated from moisture, oxygen and direct sunlight. Standard package: 25kg aluminum foil lined moisture-proof kraft bag. Shelf life: 12 months under sealed dry storage.

Service Support

High purity test samples available for battery lab research. Stable bulk supply. We provide COA, TDS and formulation technical consultation. Welcome to inquire factory quotation.

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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.