Development of a supercapacitive battery via in-situ lithiation

A method of creating a lithium-ion battery comprising the steps of:

• a. providing an anode;
• b. providing a cathode;
• c. preparing a solid-state electrolyte polymer membrane comprising the steps of:
• i. mixing a lithium salt, a plasticizer, and a co-network of a crosslinkable polyether addition, wherein the crosslinkable polyether addition is poly(ethylene glycol) diglycidyl ether (PEGDGE), poly(ethylene glycol)diacrylate (PEGDA), poly(ethylene glycol)dimethacrylate (PEGDMA), poly(propylene glycol) diacrylate (PPGDA), and poly(propylene glycol) dimethacrylate (PPGDMA), copolymers thereof, and mixtures thereof, and a crosslinkable amine addition;
• and
• ii. crosslinking the mixture to form said solid-state electrolyte polymer membrane;
• and
• d. combining the anode, the cathode, and the solid-state electrolyte polymer membrane to create a lithium-ion battery.

A method of creating a supercapacitive lithium-ion battery comprising the steps of:

• a. providing an anode;
• b. providing a cathode;
• c. preparing a solid-state electrolyte polymer membrane comprising the steps of:
• i. mixing a lithium salt, a plasticizer, and a co-network of a crosslinkable polyether addition and a crosslinkable amine addition;
• and
• ii. crosslinking the mixture to form said solid-state electrolyte polymer membrane;
• d. combining the anode, the cathode, and the solid-state electrolyte polymer membrane to create a lithium-ion battery;
• and
• e. lithiating the lithium-ion battery by deep discharging the lithium-ion battery, wherein deep discharging includes lowering the voltage to −0.5 V and then increasing the voltage to 0.5 V during a first cycle of the lithium-ion battery so as to form a supercapacitive lithium-ion battery, wherein the supercapacitive lithium-ion battery has an operating range of between about 0.01 and about 4.3 V without short-circuiting.