Electrochemical slurry compositions and methods for preparing the same

A method of preparing a semi-solid electrode, the method comprising:

• combining a quantity of an active material with a quantity of an electrolyte and a conductive additive to form an electrode material;
• mixing the electrode material to form a stable suspension having a mixing index of at least about 0.80 and an electronic conductivity of at least about 10−6 S/cm;
• and
• controlling a temperature of the electrode material during mixing to control rate of evaporation of the electrolyte therefrom.

A method of preparing a semi-solid electrode, the method comprising:

• combining an active material, an electrolyte, and a conductive additive in a vessel of a mixer;
• mixing the active material, the electrolyte, and the conductive additive in the mixer to form an electrode material suspension having a mixing index of at least about 0.80;
• and
• forming the electrode material into a semi-solid electrode,
• wherein the mixing imparts a specific mixing energy to the active material, the electrolyte, and the conductive additive so as to control evaporation of the electrolyte therefrom.