Cathode formed using aqueous slurry

A positive electrode formed by a process, the process comprising:

• forming a slurry from an electrode formulation and a liquid such that the slurry comprises particles of the electrode formulation dispersed within the liquid, wherein the particles of the electrode formulation have a particle size distribution D50 of 15 microns or less when the particles of the electrode formulation are dispersed in the slurry;
• coating the slurry on a collector;
• and
• drying the coated collector to form the positive electrode,
• wherein the electrode formulation comprises at least one electrode active material, a conductive carbon source, an organic polymeric binder, and a water-soluble polymer, and wherein the liquid consists essentially of water or a mixture of water and an alcohol, wherein when the liquid consists essentially of the mixture, the alcohol is present in an amount of less than 10% by weight, based on the weight of the slurry, and wherein when the liquid consists essentially of water, the slurry is formed from the electrode formulation, the liquid, and an arene-capped polyoxoethylene surfactant.