Patent ID: 9692083
Date: 2017-06-27
CPC Classifications: B05D,H01M,Y02E,Y02P

Claim:
1. A method for forming a conformal, pinhole-free, hybrid organic-inorganic solid electrolyte on an electrode, comprising: preparing a liquid solution comprising at least one lithium salt in at least one organic carbonate; attaching the electrode to a current collector; immersing the electrode in the solution in an electrochemical cell under an inert atmosphere; immersing a lithium electrode attached to an electrical lead in the solution; applying a voltage between the electrode and the lithium electrode corresponding to a voltage of electrochemical reduction of the solution, whereby a current is caused to flow therebetween, and electrodeposition of the solid electrolyte occurs on the electrode until the current attains a value of between about the theoretical gravimetrical capacity of the electrode multiplied by the electrode mass and divided by ten and about the theoretical gravimetrical capacity of the electrode multiplied by the electrode mass and divided by 100; recording the open circuit voltage between the electrode and the lithium electrode as a function of time to determine whether the voltage is stable; and applying the voltage corresponding to the electrodeposition voltage of the solid electrolyte to the electrode until the current attains a value of between about the theoretical gravimetrical capacity of the electrode multiplied by the electrode mass and divided by ten and about the theoretical gravimetrical capacity of the electrode multiplied by the electrode mass and divided by 100 until the open circuit voltage is stable.