T/CGIA 014-2019 The evaluation method for the dispersion stability of graphene conductive paste
T/CGIA 014-2019 The evaluation method for the dispersion stability of graphene conductive paste
Basic Information
Scope
Scope: This standard specifies the operating steps, result calculation, and stability rating for evaluating the dispersion stability of graphene conductive paste used in lithium-ion batteries. This standard applies to the evaluation of the dispersion stability of graphene conductive paste used in lithium-ion batteries, and it also applies to the stability evaluation of pastes made from other carbon materials (such as carbon nanotubes). Main technical content: The test method of this standard determines the dispersion stability of graphene conductive paste through visual observation, metallographic microscope observation, and thermal stability testing. It also uses heating to accelerate the simulation of heating and natural sedimentation processes. The stability is evaluated with three grades: 1st, 2nd, and 3rd. The test method for evaluating the dispersion stability of graphene conductive paste does not refer to any national or international standards. It is a testing method used by enterprises in actual operations. After being verified and validated by multiple enterprise laboratories and accumulating data, the test method of this standard was developed. During the standard-setting process, this test method was validated by multiple testing units, and it is highly applicable and reliable. It solves a major challenge for enterprises manufacturing and applying graphene conductive paste in evaluating their dispersion stability.