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Melt sheet for drift correction of X-ray fluorescence spectrometer and its preparation method and application
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A fluorescence spectrometer and drift correction technology, applied in the preparation of test samples, material analysis using wave/particle radiation, instruments, etc., can solve the problems of powder samples that cannot be stored for a long time, test errors, etc., to shorten the test time and Effects of error, accuracy assurance, and stability improvement
Active Publication Date: 2019-12-13
HEFEI GUOXUAN HIGH TECH POWER ENERGY
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Problems solved by technology
However, powder samples have the disadvantage that they cannot be stored for a long time. Even if a standard curve is established, the original sample can no longer be used for drift correction, resulting in test errors
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Embodiment 1
[0028] (1) Weigh 1g each of lithium iron phosphate positive electrode material, nickel-cobalt-manganese ternary positive electrode material, lithium titanate negative electrode material and boehmite, put them together and mix them evenly;
[0029] (2) Pass the mixture through a 100-mesh sieve;
[0030] (3) After mixing the sieved mixture with the flux lithium tetraborate at a mass ratio of 1:1, place it in a high-temperature furnace at 800°C and melt for 10 minutes;
[0031] (4) Pour the molten material into a mold for cooling and molding to obtain a molten sheet.
Embodiment 2
[0040] (1) Weigh 1g each of lithium iron phosphate positive electrode material, nickel-cobalt-manganese ternary positive electrode material, lithium titanate negative electrode material and boehmite, put them together and mix them evenly;
[0041] (2) Pass the mixture through a 100-mesh sieve;
[0042] (3) After mixing the sieved mixture with the flux sodium carbonate at a mass ratio of 1:5, place it in a high-temperature furnace at 1100°C and melt for 5 minutes;
[0043] (4) Pour the molten material into a mold for cooling and molding to obtain a molten sheet.
Embodiment 3
[0051] (1) Weigh 1g each of lithium iron phosphate positive electrode material, nickel-cobalt-manganese ternary positive electrode material, lithium titanate negative electrode material and boehmite, put them together and mix them evenly;
[0052] (2) Pass the mixture through a 100-mesh sieve;
[0053] (3) Mix the sieved mixture with the flux potassium carbonate at a mass ratio of 1:3, put it in a high-temperature furnace at 1000°C, and melt for 8 minutes;
[0054] (4) Pour the molten material into a mold for cooling and molding to obtain a molten sheet.
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Abstract
The invention provides a fuse piece for X-ray fluorescence spectrometer drift correction, and a preparation method and application thereof. The preparation method comprises the following preparation steps: weighing each of powder materials of all cathode and anode materials used by a lithium ion battery by 1 g, putting the powder materials together and uniformly mixing; sieving by using a 100-mesh sieve; after mixing a sieved mixture with a fluxing agent according to a mass ratio of (1 to 1) to (1 to 5), putting the mixture into a high-temperature furnace of which the temperature is 800 to 1100 DEG C, and fusing for 5 to 10 minutes; pouring a fusant into a casting mold for cooling molding, thus obtaining the fuse piece. The fuse piece prepared by the invention is special for drift correction samples when the contents of metal elements in a lithium ion battery material are measured by an X-ray fluorescence spectrometer, so that the testing accuracy of the contents of the elements is ensured, the testing time is shortened, and the testing error is reduced.
Description
technical field [0001] The invention relates to a lithium ion battery material, in particular to a fusing chip used for drift correction of an X-ray fluorescence spectrometer, a preparation method and application thereof. Background technique [0002] At present, the materials used in lithium-ion batteries mainly include: lithium iron phosphate positive electrode material, nickel-cobalt-manganese ternary positive electrode material, lithium titanate negative electrode material, boehmite, etc. At present, the battery materials are mainly tested by inductively coupled plasma (ICP) However, this method requires pretreatment of the test sample before detection, the purpose is to dissolve insoluble substances, and then use ICP to test. The pretreatment usually uses microwave digestion and melting methods. Microwave digestion usually Add strong acid and strong alkali and put it into a microwave digestion apparatus to dissolve; while the melting method uses a melting agent to melt ...
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