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PI Solid State Battery Separator Lithium Ion Battery High Temperature Resistant
PI Solid State Battery Separator Lithium Ion Battery High Temperature Resistant
Specifications
Brand Name :
XWELL
Model Number :
PI-40 / PI-80
Certification :
CE
Place of Origin :
CHINA
MOQ :
100g
Payment Terms :
L/C,D/A,D/P,T/T,Western Union,MoneyGram
Supply Ability :
1 t/month
Delivery Time :
5-7 days
Packaging Details :
Plastic package
Price :
1-1000USD/Negotiable
Model :
PI-40 / PI-80
​​Thickness Options​ :
16/20/25 μm
​​Density​ :
0.81 g/cm³
​Porosity​ :
42%
​​Air Permeability​ :
3 sec
Tensile Strength (MD)​ :
94 MPa
Puncture Resistance​ :
400g
Applications​ :
Solid-State Battery Research​
Description

PI Solid-state Battery Separator Solid Electrolyte Separator Lithium-ion Battery High Temperature Resistant Heat Stable Polyimide

Product Overview​​

Xwell Research's polyimide (PI) separators are high-performance membranes designed for next-generation battery systems, including solid-state and sodium-ion batteries. With exceptional thermal stability (-160°C to 350°C) and optimized porosity (42%), these separators enable safer and more efficient energy storage solutions for research laboratories and industrial applications.

Key Specifications​​

​​Parameter​​ ​​PI-40​​ ​​PI-80​​
​​Thickness Options​​ 16/20/25 μm 16/20/25 μm
​​Density​​ 0.81 g/cm³ 0.81 g/cm³
​​Porosity​​ 42% 42%
​​Air Permeability​​ 3 sec 3 sec
​​Tensile Strength (MD)​​ 94 MPa 94 MPa
​​Puncture Resistance​​ 400g 400g

Material Advantages​​

  1. ​​Extreme Temperature Performance​​

    • Stable operation from ​​-160°C to 350°C​​ (surpassing conventional PP/PE separators)
    • No thermal shrinkage at high temperatures

  2. ​​Mechanical Robustness​​

    • Superior puncture resistance (​​400g​​) for lithium metal anode compatibility
    • Balanced MD/TD tensile strength (94/64 MPa)

  3. ​​Electrochemical Optimization​​

    • 42% porosity enables ​​5% higher electrolyte absorption​​ vs. standard separators
    • Low impedance for high-rate applications

Handling & Processing Guidelines​​

  1. ​​Pre-Treatment​​
    • Bake at >100°C for 2-3 hours (moisture removal)
  2. ​​Cell Assembly​​
    • Maintain winding tension <0.5N to prevent stretching
  3. ​​Electrolyte Filling​​
    • Use 5% more electrolyte than conventional separators
  4. ​​Formation Protocol​​
    • Add 2 extra charge-discharge cycles post CV/CC formation

​Packaging & Storage​​

​​Attribute​​ ​​Specification​​
Packaging Roll + Vacuum-sealed bag + Foam padding
Storage Temperature 0°C to 35°C
Relative Humidity ≤75%
Shelf Life 12 months in original packaging

Applications​​

  • ​​Solid-State Battery Research​​
  • ​​Sodium-Ion Battery Development​​
  • ​​High-Temperature Battery Systems​
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PI Solid State Battery Separator Lithium Ion Battery High Temperature Resistant

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Product Detail
Brand Name :
XWELL
Model Number :
PI-40 / PI-80
Certification :
CE
Place of Origin :
CHINA
MOQ :
100g
Payment Terms :
L/C,D/A,D/P,T/T,Western Union,MoneyGram
Contact Supplier
PI Solid State Battery Separator Lithium Ion Battery High Temperature Resistant

GUANGDONG XWELL TECHNOLOGY CO., LTD.

Verified Supplier
2 Years
guangzhou
Since 2016
Business Type :
Manufacturer, Exporter, Trading Company, Seller
Main Products :
Battery Lab Equipment, Cylindrical Cell Production Line, Prismatic Cell Manufacturing
Total Annual :
3000000-5000000
Employee Number :
50~100
Certification Level :
Verified Supplier
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