Abstract: Described are embodiments of a laminator and notcher system that pertains to batteries and methods of preparing batteries. In some embodiments, the system includes a laminator configured to densify an electrode film and a notcher configured to receive the densified electrode film from the laminator and cut the densified electrode film into a plurality of electrodes. A web path of the densified electrode film from the laminator to the notcher can have a bend angle greater than 165 degrees.

Abstract: Provided are pre-lithiated electrodes, and systems and methods of making pre-lithiated electrodes. The pre-lithiated electrode can be formed from depositing an electrode layer on a lithium coated current collector to form an electrode-lithium coated current collector and calendering the electrode-lithium coated current collector to transfer lithium from the lithium coated current collector to the electrode layer to form the pre-lithiated electrode film. The pre-lithiated electrode film can have a greater concentration of lithium in a first portion of the electrode layer that is closer to the current collector than a second portion of the electrode layer that is farther from the current collector.

Abstract: Described are embodiments of a laminator and notcher system that pertains to batteries and methods of preparing batteries. In some embodiments, the system includes a laminator configured to densify an electrode film and a notcher configured to receive the densified electrode film from the laminator and cut the densified electrode film into a plurality of electrodes. A web path of the densified electrode film from the laminator to the notcher can have a bend angle greater than 165 degrees.

Abstract: An electrochemical cell includes a solid-state electrolyte, an anode, and an interfacial layer between the solid-state electrolyte and the anode, wherein the interfacial layer includes a lithium metal sulfide.