Provide membrane technology for the battery separator, medical applications, food safety and processing.
Film Product Technology
APorous is an innovative new products development company, specializing in porous film development and compounding of specialty resins.
The battery industry has also gone through rapid changes within the last fifteen years.  Portability of electronic equipment demanded higher performance and longer run time of batteries.  APorous has been able to identify technology gaps created by that change and was able to designed permeable membranes (or separators) to improve the battery performance.
 

APorous specializes in custom plastic compounding for low-volume clients.
Bettery Separators
A second separator product is designed to improve the safety performance of the lithium batteries.  Lithium batteries have the highest energy density amount today's commercial battery systems, however a major concern is the batteries' safety.  These batteries may explode under certain abusive conditions.  APorous has developed a thermally stable composite glass and polypropylene battery separator, dimensionally stable up to 150  C to minimize these safety failure modes.

Aporous developed the application of the breathable films for meat packaging,  fresh produce, and fruit packaging.
ALKALINE BATTERY SEPARATOR      NONWOVEN     APOROUS
Thickness (mil)                                               6 to 8                   1.5
Pore size (microns)                                          30                      0.1  
Electrical Resistance (mohm-cm.dq.)          35 to 50             25 to 60
Wet-out (seconds)                                            <1                     <1

produced by APorous reduced the thickness of the separator from 6 mils down to 1.5 mils for alkaline and button cell uses.  The pore size reduced from 30 microns down to 0.1 micron thus eliminated cell shorting.  The new separator allowed an increase of active material and increased cell rate capability. This alkaline separator is suitable for battery systems such as zinc-air, silver-zinc and alkaline manganese-zinc.
Button cell configuration for thin Nylon or Polyethylene separator applications
An alkaline microporous battery separator
Wound cell configuration for lithium separator uses
In addition, APorous manufactures conventional mono-layer polyethylene or polypropylene lithium battery separator.  The separator specifications is as follows.
 
Properties
Thickness (microns)
Porosity (%)
Pore Size (minimum)
Wettability (in alcohol)
MVTR (moisture vapor transmission rate)
Tensile (machine direction)
Elongation (machine direction)
Winding Stretch Per Meter (mm)
Puncture (gm)
MD Heat Shrinkage (% retained at 100  C)
TD Heat Shrinkage (% retained at 100  C)
Pore Size (mean)
Pore Size (maximum)
Basis Weight (gm/m.sq.)
Shut-down Temperature
Electrical Resistance
Units
micron
gm/m.sq.
%
micron
micron
micron
second
gm/m.sq.day
kg/cm.sq.
%
mm
gm
%
%
  C
mohm-cm.sq.
Average
20
8
46
0.10
0.09
0.29
Immediate
5000
161
25
Negligible
121
97
100
115
45
APOROUS mk3 MICROPOROUS POLYOLEFIN LITHIUM
MEMBRANE SEPARATOR
Lithium battery separator for shipment
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Our clients attribute our success to the "insights and dedication"
To learn more about APorous services and capabilities, please contact us.
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