CN107632012A - Determine boron, the method for zr element content in lithium ion battery material - Google Patents
Determine boron, the method for zr element content in lithium ion battery material Download PDFInfo
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- CN107632012A CN107632012A CN201710860338.8A CN201710860338A CN107632012A CN 107632012 A CN107632012 A CN 107632012A CN 201710860338 A CN201710860338 A CN 201710860338A CN 107632012 A CN107632012 A CN 107632012A
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Abstract
The invention discloses it is a kind of determine lithium ion battery material in boron, zr element content method, comprise the following steps:Sample pre-treatments;The preparation of mixed standard solution;Determine final result.The present invention will determine the content of boron, zr element after ternary cathode material of lithium ion battery Boron Coated, Zirconium oxide, this method simple and fast, accuracy of detection is high, is advantageous to the control of the modified effect of ternary cathode material of lithium ion battery.Wherein, sample easily loses compared with indissoluble solution, boron, zr element when dissolving, and the present invention solves the problems of dissolution of sample.
Description
Technical field
The invention belongs to technical field of chemical detection, and in particular to boron, zr element in one kind measure lithium ion battery material
The method of content.
Background technology
Lithium ion battery has the advantages that in light weight, small volume, capacity are big, had extended cycle life, memory-less effect, so as to quilt
The mobile electronic devices such as mobile phone, notebook computer are widely applied to, while are also applied to artificial satellite, electric automobile, space flight
The fields such as aviation.
Due to cation mixing phenomenon occurring during ternary cathode material of lithium ion battery high temperature crystallization, so as to go out
The defects such as existing heat endurance difference and first charge-discharge efficiency are low.Currently in order to solve this problem, this is doped Boron Coated,
The oxides such as zirconium further improve the chemical property of material with the structure of stabilizing material, not only increase the stability of material
And high-temperature behavior, while the chemical property of material is also largely improved, particularly specific capacity and first charge-discharge are imitated
Rate increases.
There is presently no boron, zirconium after the method for maturation measure ternary cathode material of lithium ion battery Boron Coated, Zirconium oxide
The content of element.
The content of the invention
Goal of the invention:The present invention provides boron, the method for zr element content in a kind of measure lithium ion battery material, wherein,
Sample easily loses compared with indissoluble solution, boron, zr element when dissolving, and the present invention solves the problems of dissolution of sample.
Technical scheme:Boron, the method for zr element content, comprise the following steps in a kind of measure lithium ion battery material:
1), sample pre-treatments:
0.2g samples accurately are weighed in high-pressure sample dissolving tank, add a small amount of distilled water to soak, and are added hydrochloric acid (1+1) 3ml, are tightened
High-pressure sample dissolving tank, it is put into 150 DEG C of baking ovens and is kept for 2 hours, taking-up is cooled to room temperature, and solution is transferred in 100ml volumetric flasks, high
Pure water constant volume;
2), the preparation of mixed standard solution:
A. above-mentioned standard boron, zirconium solution 10mL are accurately pipetted respectively in 100mL volumetric flasks, and high purity water constant volume, medium is
2% hydrochloric acid, boron, zirconium concentration are 100 μ g/mL;
B. pipette 0 respectively, 1,2,4mL above-mentioned standards solution in 4 100mL volumetric flasks, high purity water constant volume, medium is
2% hydrochloric acid, boron, zirconium concentration are respectively 0,1,2,4 μ g/mL;3) final result, is determined:
Start, boron, zirconium mixed standard solution are determined first after waiting instrument stabilizer, inputted in instrumentation software related
Coefficient, instrument draw standard curve and calculate final result according to standard curve automatically.
As optimization:The instrument is U.S.'s thermoelectricity iCAP6300 type inductively coupled plasma atomic emission spectrometry instrument;Instrument
Device running parameter is:0.60~0.65MPa of argon pressure, 1000~1200W of RF power, 0.4~0.6L/min of secondary air amount,
Vertical Observation height 15.0mm, 0.2~0.3Mpa of atomization air pressure, select suitable boron, zirconium wavelength.
Beneficial effect:The present invention will determine boron, zr element after ternary cathode material of lithium ion battery Boron Coated, Zirconium oxide
Content, this method simple and fast, accuracy of detection is high, is advantageous to the control of the modified effect of ternary cathode material of lithium ion battery
System.Wherein, sample easily loses compared with indissoluble solution, boron, zr element when dissolving, and the present invention solves the problems of dissolution of sample.
Embodiment
With reference to specific embodiment, the present invention will be described in detail.
Specific embodiment:
Boron, the method for zr element content, comprise the following steps in a kind of measure lithium ion battery material:
1), sample pre-treatments:
0.2g samples accurately are weighed in high-pressure sample dissolving tank, add a small amount of distilled water to soak, and are added hydrochloric acid (1+1) 3ml, are tightened
High-pressure sample dissolving tank, it is put into 150 DEG C of baking ovens and is kept for 2 hours, taking-up is cooled to room temperature, and solution is transferred in 100ml volumetric flasks, high
Pure water constant volume;
2), the preparation of mixed standard solution:
Boron used, zirconium standard liquid are the μ g/mL of ρ=1000;
A. above-mentioned standard boron, zirconium solution 10mL are accurately pipetted respectively in 100mL volumetric flasks, and high purity water constant volume, medium is
2% hydrochloric acid, boron, zirconium concentration are 100 μ g/mL;
B. pipette 0 respectively, 1,2,4mL above-mentioned standards solution in 4 100mL volumetric flasks, high purity water constant volume, medium is
2% hydrochloric acid, boron, zirconium concentration are respectively 0,1,2,4 μ g/mL;
3) final result, is determined:
Start, boron, zirconium mixed standard solution are determined first after waiting instrument stabilizer, inputted in instrumentation software related
Coefficient, instrument draw standard curve and calculate final result according to standard curve automatically.The instrument is U.S.'s thermoelectricity
ICAP6300 type inductively coupled plasma atomic emission spectrometry instrument;Instrument working parameter is:
It is 0.60~0.65MPa of argon pressure, 1000~1200W of RF power, 0.4~0.6L/min of secondary air amount, vertical
Observed altitude 15.0mm, 0.2~0.3Mpa of atomization air pressure, it is boron 249.773nm, zirconium 267.863nm to select wavelength.
In order to better illustrate advantages of the present invention, several groups of detection data of method provided by the invention are given below:
The group measurement result of table more than 1
The each element detection limit of table 2
The each element range of linearity of table 3
The each sample recovery of standard addition of table 4
The present invention will determine the content of boron, zr element after ternary cathode material of lithium ion battery Boron Coated, Zirconium oxide, this
Method simple and fast, accuracy of detection is high, is advantageous to the control of the modified effect of ternary cathode material of lithium ion battery.Wherein, sample
Product easily lose compared with indissoluble solution, boron, zr element when dissolving, and the present invention solves the problems of dissolution of sample.
Claims (2)
1. boron, the method for zr element content in a kind of measure lithium ion battery material, it is characterised in that:Comprise the following steps:
1), sample pre-treatments:
0.2g samples accurately are weighed in high-pressure sample dissolving tank, add a small amount of distilled water to soak, and are added hydrochloric acid (1+1) 3ml, are tightened high pressure
Sample-dissolving pot, it is put into 150 DEG C of baking ovens and is kept for 2 hours, taking-up is cooled to room temperature, solution is transferred in 100ml volumetric flasks, high purity water
Constant volume;
2), the preparation of mixed standard solution:
Boron used, zirconium standard liquid are the μ g/mL of ρ=1000;
A. above-mentioned standard boron, zirconium solution 10mL are accurately pipetted respectively in 100mL volumetric flasks, and high purity water constant volume, medium is 2%
Hydrochloric acid, boron, zirconium concentration are 100 μ g/mL;
B. pipette 0 respectively, 1,2,4mL above-mentioned standards solution in 4 100mL volumetric flasks, high purity water constant volume, medium is 2%
Hydrochloric acid, boron, zirconium concentration are respectively 0,1,2,4 μ g/mL;
3) final result, is determined:
Start, boron, zirconium mixed standard solution are determined first after waiting instrument stabilizer, phase relation is inputted in instrumentation software
Number, instrument draw standard curve and calculate final result according to standard curve automatically.
2. boron, the method for zr element content in measure lithium ion battery material according to claim 1, it is characterised in that:
The instrument is U.S.'s thermoelectricity iCAP6300 type inductively coupled plasma atomic emission spectrometry instrument;Instrument working parameter is:Argon gas
0.60~0.65MPa of pressure, 1000~1200W of RF power, 0.4~0.6L/min of secondary air amount, Vertical Observation height
15.0mm, 0.2~0.3Mpa of atomization air pressure, select suitable boron, zirconium wavelength.
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Cited By (3)
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CN108549789A (en) * | 2018-04-19 | 2018-09-18 | 中南大学 | A kind of integrated modelling approach of tertiary cathode material feed proportioning system |
CN113155811A (en) * | 2021-03-24 | 2021-07-23 | 天津巴莫科技有限责任公司 | Method for measuring content of zirconium element in lithium ion battery anode material |
CN114486775A (en) * | 2021-12-31 | 2022-05-13 | 合肥国轩高科动力能源有限公司 | Method for measuring boron doped in nickel-cobalt-manganese ternary positive electrode material |
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
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CN108549789A (en) * | 2018-04-19 | 2018-09-18 | 中南大学 | A kind of integrated modelling approach of tertiary cathode material feed proportioning system |
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CN113155811A (en) * | 2021-03-24 | 2021-07-23 | 天津巴莫科技有限责任公司 | Method for measuring content of zirconium element in lithium ion battery anode material |
CN114486775A (en) * | 2021-12-31 | 2022-05-13 | 合肥国轩高科动力能源有限公司 | Method for measuring boron doped in nickel-cobalt-manganese ternary positive electrode material |
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