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Battery Separators

Ribbed PP separator series

  • Product ID:Battery Separators
  • QQ:
  • Phone: 008618014912498
  • Tel: 008618014912498
  • Email: hengshinewmaterial@outlook.com
  • Time: 2024-03-14 16:46:43
  • FEEDBACK

The melt blown polypropylene battery separator (PP separator) is suitable for low-end and inexpensive automotive and motorcycle batteries; PP separators come in various forms and can be processed into flat and ribbed separator of various sizes and specifications.

In order to solve the stiffness defects of PP separators, ribbed PP separators were introduced to improve their electrical performance and stiffness. And in order to protect the anode plate in lead-acid batteries, prevent lead powder from falling off and earthquake resistance, bag type PP separators have been introduced.

TECHNICAL DATA

Item

Unit

Parameters

Back web

mm

≤0.50

0.50~0.80

>0.80

Total thickness

mm

(0.80~1.30)±0.05



Electrical resistance

Ω.dm2

≤0.0010

≤0.0015

≤0.0020

CMD stretch rate

%

≥300

Porosity

%

≤65

Maximum pore size

μm

≤36

Shrinkage

%

≤1.0

Wet ability

s

≤5.0

Weight loss in acid

%

≤4.0

Moisture

%

≤4.0

Iron content

%

≤0.010

Chlorine content

%

≤0.030

Reduced potassium permanganate substances

Ml/g

≤15

Foaminess

/

Bubbles (foam) cannot completely cover the surface of sulfuric acid solution

lamination

/

No layering gap


Application of PP separator in starter batteries and its existing problems

 

The biggest problem with PP separators is the lack of antioxidant properties:

 

① The surface area of ultrafine fibers in raw materials is larger, making them more susceptible to thermal aging;

② High temperature process leads to the loss of antioxidants;

③ In the water washing process, it can also promote the aging of the separator.


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