Forming battery electrodes and associated battery

A method, comprising:

• forming a first cathode on a first substrate, wherein forming the first cathode on the first substrate comprises:
• depositing a first layer of a cathode active material on a first portion of a surface of the first substrate;
• and
• forming a first cathode current collector that comprises a first conductive material, wherein forming the first cathode current collector comprises depositing, using a physical vapor deposition (PVD) process, the first conductive material on a surface of the first layer of the cathode active material, the first conductive material being deposited over an edge of the first layer of the cathode active material and onto a second portion of the surface of the first substrate, the second portion of the first substrate being adjacent to the first portion of the first substrate;
• removing the first cathode from the first substrate, the first cathode comprising the first layer of the cathode active material and the first cathode current collector;
• forming a first anode on a second substrate, wherein forming the first anode on the second substrate comprises:
• depositing a first layer of an anode active material on a first portion of a surface of the second substrate;
• and
• forming a first anode current collector that comprises a second conductive material, wherein forming the first anode current collector comprises depositing, using a PVD process or chemical vapor deposition (CVD) process, the second conductive material on a surface of the first layer of the anode active material, the second conductive material being deposited over an edge of the first layer of the anode active material and onto a second portion of the surface of the second substrate, the second portion of the second substrate being adjacent to the first portion of the second substrate;
• removing the first anode from the second substrate, the first anode comprising the first layer of the anode active material and the first anode current collector;
• disposing the first cathode to a first side of a first separator;
• and
• disposing the first anode to a second side of the first separator such that at least a portion of the first separator separates the first cathode and the first anode.

A method, comprising:

• forming a battery electrode on a substrate, wherein forming the battery electrode on the substrate comprises:
• depositing a first electrode active material layer on a first portion of a surface of the substrate;
• and
• depositing, to form a current collector, a conductive material using a thin film deposition process on a surface of the first electrode active material layer, the conductive material being deposited over an edge of the first electrode active material layer and onto a second portion of the surface of the substrate, the second portion of the substrate being adjacent to the first portion of the substrate;
• removing the battery electrode from the substrate, the battery electrode comprising the first electrode active material layer and the current collector.