Electrode material of drainage rechargeable and dischargeable lithium ion and aqueous solution rechargeable and dischargeable lithium ion battery
A lithium-ion battery and aqueous solution technology, which is applied in battery electrodes, secondary batteries, circuits, etc., can solve problems such as potential safety hazards, high production costs of organic electrolyte batteries, and restrictions on the application of large-scale batteries, achieving high safety and wide practicality Value and market prospects, the effect of low production costs
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Embodiment 1
[0032] The prepared carbon-coated Li 2 FeSiO 4 Material as the negative electrode active material, LiNi 1 / 3 co 1 / 3 mn 1 / 3 o 2 as a positive electrode active material. They are respectively mixed with acetylene black, polytetrafluoroethylene, and sodium carboxymethyl cellulose in a mass ratio of 85:10:4:5, and ethanol is used as a dispersant. After 12 hours, the corresponding negative and positive pole pieces can be obtained. The negative electrode and positive electrode sheet prepared by the above process were separated by polypropylene triacetate cellulose separator (the capacity of the cut positive electrode sheet was much larger than that of the negative electrode), and 1M Li 2 SO 4 As the electrolyte, the stainless steel shell is used as the shell, and assembled into a CR2016 button battery. The aqueous lithium ion assembled by the above process was subjected to a constant current charge and discharge test with a current of 10 mA / g in the potential range of 0.5-1.6...
Embodiment 2
[0034] The prepared carbon-coated Li 2 FeSiO 4 Material as the negative electrode active material, LiNi 1 / 3 co 1 / 3 mn 1 / 3 o 2 as a positive electrode active material. They are respectively mixed with acetylene black, polytetrafluoroethylene, and sodium carboxymethyl cellulose in a mass ratio of 85:10:4:5, and ethanol is used as a dispersant. After 12 hours, the corresponding negative and positive pole pieces can be obtained. The negative electrode and positive electrode sheet prepared by the above process are separated by polypropylene triacetylcellulose separator (wherein, the capacity of the cut positive electrode sheet is much larger than that of the negative electrode), and 2M LiNO 3 As the electrolyte, the stainless steel shell is used as the shell, and assembled into a CR2016 button battery. The aqueous lithium ion assembled by the above process was subjected to a constant current charge and discharge test with a current of 10 mA / g in the potential range of 0.5-1....
Embodiment 3
[0036] The prepared carbon-coated Li 2 FeSiO 4 Material as the negative electrode active material, LiNi 1 / 3 co 1 / 3 mn 1 / 3 o 2 as a positive electrode active material. They are respectively mixed with acetylene black, polytetrafluoroethylene, and sodium carboxymethyl cellulose in a mass ratio of 85:10:4:5, and ethanol is used as a dispersant. After 12 hours, the corresponding negative and positive pole pieces can be obtained. The negative electrode and positive electrode piece prepared by the above process are separated by polypropylene triacetate cellulose diaphragm (the capacity of the cut positive electrode piece is much larger than that of the negative electrode), 2M NaCl is used as the electrolyte, and the stainless steel shell is used as the outer shell. Assembled into a CR2016 button battery. The lithium ion aqueous solution assembled by the above process was subjected to a constant current charge and discharge test with a current of 10 mA / g in the potential range...
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