3-D composite anodes for Li-ion batteries with high capacity and fast charging capability

A lithium-ion battery, comprising:

• an anode comprising an electrochemically active lithium host material distributed between first and second major faces of the anode defining a thickness of the anode;
• a cathode comprising a lithium-based active material distributed between first and second major faces of the cathode defining a thickness of the cathode, the lithium-based active material storing intercalated lithium at a higher electrochemical potential than the electrochemically active lithium host material of the anode;
• and
• a separator that physically separates and electrically isolates the anode and the cathode from each other and allows lithium ions to pass between the anode and the cathode in the presence of an electrolyte,
• wherein at least one of the anode or the cathode defines a plurality of channels extending at least partially through the thickness of the respective anode or cathode, and
• wherein the electrochemically active lithium host material of the anode comprises graphite having a purity of 99% or greater, the graphite particles exhibiting an ellipsoidal shape and have a particle size distribution in which at least 90% of the graphite particles have a particle size ranging from 5-25 μm.