Method for treating lithium metal with fluoroethylene carbonate and application of lithium metal in solid-state batteries

[0026] 1. A method for processing lithium metal with fluoroethylene carbonate, comprising the steps of: in the glove box, dipping cyclohexane with a nylon brush to wipe lithium metal to remove the oxide layer on the surface, and then lithium metal Immerse in fluoroethylene carbonate, take out the lithium metal after 2 hours, and dry it on a constant temperature heating plate at 60°C to obtain the lithium negative electrode material.

[0027] 2. A solid-state battery: comprising the following steps:

[0028] (1) Preparation of negative electrode material: the negative electrode material is the lithium negative electrode material prepared in this embodiment.

[0029] (2) Preparation of positive electrode material: Weigh LiFePO with a mass ratio of 7:1:2 4 , super P and PEO (LITFSI) were dispersed in tetrahydrofuran, and after stirring for 12 hours, the slurry was uniformly coated on aluminum foil, dried in vacuum at 80°C for 12 hours, and cut into pieces for later use.

[0030...

[0032] 1. A method for processing lithium metal with fluoroethylene carbonate, comprising the steps of: in the glove box, dipping cyclohexane with a nylon brush to wipe lithium metal to remove the oxide layer on the surface, and then lithium metal Immerse in fluoroethylene carbonate, take out the lithium metal after 5 hours, and dry it on a constant temperature heating plate at 100°C to obtain the lithium negative electrode material.

[0033] 2. A solid-state battery: comprising the following steps:

[0034] (1) Preparation of negative electrode material: the negative electrode material is the lithium negative electrode material prepared in this embodiment.

[0035] (2) Preparation of positive electrode material: Weigh LiFePO with a mass ratio of 7:1:2 4 , super P and PEO (LITFSI) were dispersed in tetrahydrofuran, and after stirring for 12 hours, the slurry was uniformly coated on aluminum foil, dried in vacuum at 80°C for 12 hours, and cut into pieces for later use.

[003...

[0038] 1. A method for processing lithium metal with fluoroethylene carbonate, comprising the steps of: in the glove box, dipping cyclohexane with a nylon brush to wipe the lithium aluminum alloy to remove the oxide layer on the surface, and then place the lithium The alloy is immersed in fluoroethylene carbonate, taken out after 10s, and dried on a constant temperature heating plate at 100°C to obtain the lithium negative electrode material.