Powdered acetylene black materials, methods of production thereof, and compositions, articles and uses thereof

The present invention provides a method of producing a powdered acetylene black material comprising (a) providing an initial acetylene black, (b) densifying the provided initial acetylene black to form a densified acetylene black, and (c) comminuting the densified acetylene black to form a powdered acetylene black material. Powdery acetylene black materials obtainable by this process exhibit, inter alia, increased dispersibility and produce dispersions that exhibit increased stability over time, which make them useful as conductive or antistatic agents, reinforcing fillers and/or colorants in compositions for a variety of applications, such as electrodes and other components of energy storage and/or conversion devices, plastic articles, coatings, paints or inks. 本发明提供了一种生产粉状乙炔黑材料的方法，其包括：(a)提供初始乙炔黑，(b)将所提供的初始乙炔黑致密化以形成致密的乙炔黑，以及(c)将致密的乙炔黑粉碎以形成粉状乙炔黑材料。通过该方法可获得的粉状乙炔黑材料尤其表现出提高的可分散性并产生随时间显示出提高的稳定性的分散体，这使得它们可作为组合物中的导电剂或抗静电剂、增强填料和/或着色剂用于各种应用，例如能量存储和/或转换装置的电极和其他部件、塑料制品、涂料、油漆或油墨。