Composite material

A method of making a composite material, the method comprising the steps of:

• providing a quantity of matrix particles, the matrix particles comprising an electrode active material;
• providing a quantity of conductive particles, the conductive particles comprising either:
• a material that is both ionically- and electronically-conductive;
• or
• a mixture of ionically-conductive particles and electronically-conductive particles, the electronically-conductive particles having a sphericity of at least 0.6;
• preparing an ink formulation comprising the matrix particles, the conductive particles, and a fluid carrier medium;
• and
• depositing the ink formulation on a substrate to provide a printed layer;
• wherein the conductive particles have a D90 value that is at least 5% of the D50 value of the matrix particles.

A method of making a composite material, the method comprising the steps of:

• providing a quantity of ionically-conductive particles, an amount of an electronically-conductive phase and a quantity of matrix particles, the matrix particles comprising an electrode active material;
• preparing an ink formulation comprising the matrix particles, the ionically-conductive particles, the electronically-conductive phase, and a fluid carrier medium;
• and
• depositing the ink formulation on a substrate to provide a printed layer;
• wherein the ionically-conductive particles have a D90 value that is at least 5% of the D50 value of the matrix particles.

A method of making a composite material, the method comprising the steps of:

• providing a quantity of ionically-conductive particles, a quantity of electronically-conductive particles and a quantity of matrix particles, the matrix particles comprising an electrode active material;
• preparing an ink formulation comprising the matrix particles, the ionically-conductive particles, the electronically-conductive particles, and a fluid carrier medium;
• and
• depositing the ink formulation on a substrate to provide a printed layer;
• wherein the ionically-conductive particles have a D90 value that is at least 5% of the D50 value of the matrix particles.

A method of making a composite material, the method comprising the steps of:

• providing a quantity of ionically-conductive particles, a quantity of electronically-conductive particles and a quantity of matrix particles, the matrix particles comprising an electrode active material;
• preparing an ink formulation comprising the matrix particles, the ionically-conductive particles, the electronically-conductive particles, and a fluid carrier medium;
• and
• depositing the ink formulation on a substrate to provide a printed layer;
• wherein the electronically-conductive particles have a D90 value that is at least 5% of the D50 value of the matrix particles.