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Functional Additives

Release agent HFT-50

  • info107346
  • Jul 3, 2024
  • 1 min read

Product introduction


HFT-50 is a release agent that effectively solves the adhesion problem of negative electrodes in the negative electrode roll press process of lithium-ion batteries.


  • Highly conductive : Highly compatible with water-based solvents, it forms a film quickly and effectively blocks contact between graphite and steel rolls.

  • Low surface tension : Improves wettability of contacting materials, making film formation easier.

  • Chemical inertness : Organosilicon materials have excellent chemical inertness, effectively preventing residues from affecting the chemical balance within the battery.

  • Structural stability : Traces of organosilicon residue are undetectable, avoiding battery failure caused by volume expansion due to structural changes.


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Characteristic Indicators

item

Parameters

component

Water, a mixture of different derivatives of organosilicon

Applications

Lithium-ion battery negative electrode roll press process, prevention of negative electrode adhesion

exterior

Colorless transparent liquid

Feeling

Odorless

pH value

6 to 8

Mechanism Analysis


Currently, the rolling roll surface of the roll press equipment is chrome plated, and the surface tension at the beginning of use is about 30-32mN/m. After a certain period of use, the roll surface tension increases to about 30-40mN/m.


According to practical experience, when the surface tension of the mold is in the range of 17-23mN/m, it has a good releasing effect on the material. By applying HFT-50, the roll surface tension can be reduced to 17-23mN/m, which effectively improves the adhesion problem of the negative electrode. The most effective use is when a new roll with chrome plating is combined with the release agent, which can also extend the service life of the roll.


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