Three-dimensional porous lithium battery current collector and preparation method thereof
A three-dimensional porous, lithium battery technology, applied in the direction of electrode carrier/current collector, etc., can solve the problem of high contact resistance, and achieve the effect of reducing battery volume, improving powder removal, and increasing adsorption capacity
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0016] Example 1, the three-dimensional porous lithium battery current collector is obtained according to the following preparation method: the three-dimensional porous lithium battery current collector is characterized in that it is obtained according to the following method: in the first step, put 0.1g to 1g per liter of phosphoric acid aqueous solution Aluminum foil meter, put the aluminum foil into the phosphoric acid aqueous solution with a mass concentration of 0.1% to 20%, and perform phosphoric acid corrosion treatment at a temperature of 20°C to 80°C for 30s to 10min; Add 0.1g to 5g of aluminum foil, put the aluminum foil after phosphoric acid corrosion treatment into the electrocorrosion solution, and use 50Hz power frequency alternating current at a current density of 0.133A / cm 2 up to 10 A / cm 2 , Carry out galvanic corrosion at a temperature of 10°C to 80°C for 1s to 10min; in the third step, put 0.1g to 1g of aluminum foil in each liter of nitric acid aq...
Embodiment 2
[0017] Example 2, the three-dimensional porous lithium battery current collector is obtained according to the following preparation method: in the first step, 0.1 g or 1 g of aluminum foil is put into each liter of phosphoric acid aqueous solution, and the aluminum foil is put into 0.1% or 20% of the mass concentration In the phosphoric acid aqueous solution, the phosphoric acid corrosion treatment is carried out at 20°C or 80°C for 30s or 10min; in the second step, 0.1g or 5g of aluminum foil is put into each liter of electro-corrosion solution, and the aluminum foil after phosphoric acid corrosion treatment Put it into the electro-corrosion solution, use 50Hz power frequency alternating current at a current density of 0.133A / cm 2 or 10 A / cm 2 , The temperature is 10°C or 80°C for 1s or 10min; the third step is to put 0.1g or 1g of aluminum foil into each liter of nitric acid aqueous solution, and put the aluminum foil after galvanic corrosion into the concentration...
Embodiment 3
[0018] Embodiment 3, preferably as above-mentioned embodiment, in the first step, put into 0.45g aluminum foil meter in every liter of phosphoric acid aqueous solution, put aluminum foil into the phosphoric acid aqueous solution that mass concentration is 0.1% to 20%; In the second step, press Put 1.5g of aluminum foil into each liter of electro-corrosion solution, put the aluminum foil after phosphoric acid corrosion treatment into the electro-corrosion solution; in the third step, put 0.45g of aluminum foil into each liter of nitric acid aqueous solution, put the Put the final aluminum foil into the nitric acid aqueous solution with a concentration of 0.01mol / L to 1mol / L; in the fourth step, put 0.45g of aluminum foil into each liter of chemical etching solution, put the aluminum foil after nitric acid etching into chemical etching in the liquid.
PUM
| Property | Measurement | Unit |
|---|---|---|
| Particle size | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More