Used in separating lithium ion battery cathode and anode,to prevent short circuit Product characteristics:
1.Uniform pore size distribution
2.Low obturator temperature
3.High film rupture temperature Application: Communications products battery,Tool Battery.
Term |
Unit |
Inspection value |
Inspection value |
Inspection value |
Inspection value |
Appearance |
|
Ivory-white |
Ivory-white |
Ivory-white |
Ivory-white |
Thickness |
micron |
16±2 |
18±2 |
20±2 |
25±2 |
Gas permeability |
Sec/100ml |
350-550 |
350-500 |
350-550 |
350-650 |
Porosity |
% |
38-44 |
38-44 |
38-44 |
38-44 |
Puncturing Strength |
g |
>300 |
>300 |
>300 |
>300 |
Tensile strength MD |
Mpa |
>90 |
>90 |
>90 |
>90 |
Tensile strength TD |
Mpa |
>100 |
>100 |
>100 |
>100 |
Film close temperature |
℃ |
≤135 |
≤135 |
≤135 |
≤135 |
Film break temperature |
℃ |
≥147 |
≥147 |
≥147 |
≥147 |
% |
≤3.5 |
≤3.5 |
≤3.5 |
≤3.5 |
|
% |
≤2 |
≤2 |
≤2 |
≤2 |
|
105℃ heat shrink MD |
% |
≤5 |
≤5 |
≤5 |
|
105℃ heat shrink TD |
% |
≤3 |
≤3 |
≤3 |
≤3 |
120℃ heat shrink MD |
% |
≤20 |
≤20 |
≤20 |
≤20 |
120℃ heat shrink TD |
% |
≤15 |
≤15 |
≤15 |
≤15 |