Patent ID: 9045842
Filing Date: 2015-06-02
Classification: B32B,C01B,C25F

Abstract:
1. An electrochemical etching apparatus, comprising: a power supply including a negative terminal and a positive terminal configured to output current; a container configured to contain an electrolyte; a cathode coupled to the container and configured to fluidly communicate with the electrolyte, the cathode having a portion electrically connected to the negative terminal; and an anode having a portion electrically connected to the positive terminal, the anode including a graphene layer and a metal substrate layer that is etched from the graphene layer in response to the current flowing through the anode, the anode further including a metal plate having a first portion in electrical communication with the positive terminal to receive the current; and an electrically conductive polymer comprising Poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) configured to couple the metal plate to the graphene layer.