Method for testing cobalt content in manganese-containing materials, method for testing electrode quality and method for testing battery quality
A technology of cobalt content and manganese content, which is applied in the field of material chemistry, can solve the problems that the cobalt content of manganese-containing materials cannot be tested more accurately and needs to be improved.
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0084] It is called 0.1 g of nickel-wateng manganese termination to 250 ml of beaker, and a small amount of water moisturizing sample, and rinsing the cup wall, adding 5 ml of hydrochloric acid, adding a few drops of hydrogenated hydrogen, add 10 ml of zinc sulfate solution (including zinc content of 100 mg) Add 1 ml (1 + 9) sulfuric acid, low temperature electric furnace is heated to the sulfuric acid, slightly cold, add a small amount of deionized water to rinse the cup wall, heat dissolved samples, evaporated to the volume of about 1 to 2 ml, add potassium nitric acid - potassium nitric acid 50 ml of saturated solution, placed on a 340 ° C ~ 380 ° C electric heating plate for heating treatment, after yellow-green smoke appears, caps the surface vessel, boil 4 to 6 minutes, add 0.5 g of potassium chlorate solid, continue to boil 4 to 6 minutes The cooling was removed, and the water was cleaned and the beaker was removed from about 80 ml, and the slow filter paper was filtered to...
Embodiment 2
[0105] Example 2 Selection of metal ions
[0106] A standard sample of nickel-cobalt-manganese trimeterials, which contains 50 mg of nickel, cobalt 10 mg, manganese 20 mg, according to the test method in Example 1, no sulfate solution is added, and zinc sulfate solution is replaced by 100 mg NA + Mg 2+ , CA 2 + , Fe 3+ Solution, standard samples of nickel-wateng-manganese termination with no metal ions, add 100 mg of Zn 2+ The standard sample of nickel-wateng manganese trimeterials is synchronized experiment, and the results of the cobalt content adsorbed in the precipitate obtained in the test are shown in Table 5:
[0107] Table 5 After the same amount of metal ion, the cobalt content of the adsorbed adsorption is tested.
[0108] sample No metal ion is added NA +
[0109] The results show that the addition of NA is added compared to the addition of metal ions. + Mg 2+ , CA 2+ After that, the amount of cobalt content adsorbed in the precipitate is small, and Zn is a...
Embodiment 3
[0110] Example 3 The volume of the first mixture of nitric acid-chlorate saturated solution on test results
[0111] According to the test method in Example 1, after the sulfuric acid is dried, the sample of different amounts of deionized water is added, and 50 ml of nitrate-chlorate saturated solution is added to the oxidation separation, and the same nickel-cobalt-manganese trimeterial material is tested. The content was 12% and the cobalt content was 10% (weighed 0.1 g of the sample, i.e., about 12 mg of manganese). The test results are as follows:
[0112] Table 6 Effect of volume on the first mixture of nitric acid-chlorate saturated solution to test results
[0113]
[0114] As can be seen from the data in Table 6, as the solution volume increases, the test result is gradually increased, and it can be speculated as the Mn in the first mixture. 2+ The separation is not complete, resulting in a large interference of the measurement of manganese. When the solution is 1 to 2 m...
PUM
| Property | Measurement | Unit |
|---|---|---|
| wavelength | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More