YS/T 1006.2-2014 PDF in English
YS/T 1006.2-2014 (YS/T1006.2-2014, YST 1006.2-2014, YST1006.2-2014)
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| YS/T 1006.2-2014 | English | 175 |
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Methods for chemical analysis of lithium nickel cobalt manganese oxide. Part 2: Determination of lithium, nickel, cobalt, manganese, sodium, magnesium, aluminium, potassium, copper, calcium, iron, zinc and silicon content - Inductively coupled plasma atom
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Standards related to (historical): YS/T 1006.2-2014
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YS/T 1006.2-2014: PDF in English (YST 1006.2-2014) YS/T 1006.2-2014
YS
NON-FERROUS METAL INDUSTRY STANDARD
OF THE PEOPLE’S REPUBLIC OF CHINA
ICS 77.120.99
H 14
Methods for Chemical Analysis of Lithium Nickel Cobalt
Manganese Oxide - Part 2: Determination of Lithium, Nickel,
Cobalt, Manganese, Sodium, Magnesium, Aluminum,
Potassium, Copper, Calcium, Iron, Zinc and Silicon Content -
Inductively Coupled Plasma Atomic Emission Spectrometry
ISSUED ON: OCTOBER 14, 2014
IMPLEMENTED ON: APRIL 1, 2015
Issued by: Ministry of Industry and Information Technology of the
People’s Republic of China
Table of Contents
Foreword ... 3
1 Scope ... 4
2 Method Summary ... 5
3 Reagents ... 5
4 Instrument ... 8
5 Specimen ... 9
6 Analytical Procedures ... 9
7 Calculation of Analysis Result ... 10
8 Precision ... 11
9 Test Report ... 12
Methods for Chemical Analysis of Lithium Nickel
Cobalt Manganese Oxide - Part 2: Determination of
Lithium, Nickel, Cobalt, Manganese, Sodium,
Magnesium, Aluminum, Potassium, Copper, Calcium,
Iron, Zinc and Silicon Content - Inductively Coupled
Plasma Atomic Emission Spectrometry
1 Scope
This Part of YS/T 1006 specifies the method for the determination of lithium, nickel,
cobalt, manganese, sodium, magnesium, aluminum, potassium, copper, calcium, iron,
zinc and silicon content in lithium nickel cobalt manganese oxide, which is the cathode
material for lithium ion batteries.
This Part is applicable to the determination of lithium, nickel, cobalt, manganese,
sodium, magnesium, aluminum, potassium, copper, calcium, iron, zinc and silicon
content in lithium nickel cobalt manganese oxide, which is the cathode material for
lithium ion batteries. The range of determination is shown in Table 1.
Table 1 -- Range of Determination
transfer it into a 500 mL volumetric flask. Use water to dilute it to the scale, then, mix it
up. 1 mL of this solution contains 2.0 mg of cobalt.
3.9 Manganese standard stock solution: weigh-take 1.0000 g of pure manganese [w(Mn)
≥ 99.99%] in a beaker; add 50 mL of hydrochloric acid (3.3). Heat it up to dissolve it,
then, remove it and cool it down. Use water to wash the watch glass and the wall of
the beaker; transfer it into a 500 mL volumetric flask. Use water to dilute it to the scale,
then, mix it up. 1 mL of this solution contains 2.0 mg of manganese.
3.10 Sodium standard stock solution: weigh-take 2.5420 g of dried reference sodium
chloride [w(NaCl) ≥ 99.99%] in a beaker; slowly add 100 mL of water and cover the watch
glass. Conduct low-temperature dissolution, then, cool it down. Use water to wash the
watch glass and the wall of the beaker; transfer it into a 1,000 mL volumetric flask. Use
water to dilute it to the scale, then, mix it up; immediately transfer it to a dry plastic
bottle. 1 mL of this solution contains 1.0 mg of sodium.
3.11 Magnesium standard stock solution: weigh-take 1.6580 g of dried magnesium
oxide [w(MgO) ≥ 99.99%] in a beaker; slowly add 50 mL of hydrochloric acid (3.3) and
cover the watch glass. Conduct low-temperature dissolution, then, cool it down. Use
water to wash the watch glass and the wall of the beaker; transfer it into a 1,000 mL
volumetric flask. Use water to dilute it to the scale, then, mix it up. 1 mL of this solution
contains 1.0 mg of magnesium.
3.12 Aluminum standard stock solution: weigh-take 1.0000 g of pure aluminum [w(Al) ≥
99.99%] in a 400 mL beaker; slowly add 50 mL of hydrochloric acid (3.3) and cover the
watch glass. Conduct low-temperature dissolution, then, cool it down. Use water to
wash the watch glass and the wall of the beaker; transfer it into a 1,000 mL volumetric
flask. Use water to dilute it to the scale, then, mix it up. 1 mL of this solution contains
1.0 mg of aluminum.
3.13 Potassium standard stock solution: weigh-take 1.9068 g of dried reference
potassium chloride [w(KCl) ≥ 99.99%] in a beaker; slowly add 100 mL of water and cover
the watch glass. Conduct low-temperature dissolution, then, cool it down. Use water
to wash the watch glass and the wall of the beaker; transfer it into a 1,000 mL
volumetric flask. Use water to dilute it to the scale, then, mix it up; immediately transfer
it to a dry plastic bottle. 1 mL of this solution contains 1.0 mg of potassium.
3.14 Copper standard stock solution: weigh-take 1.0000 g of pure copper [w(Cu) ≥
99.99%] in a beaker; slowly add 50 mL of nitric acid (3.4) and cover the watch glass.
Conduct low-temperature dissolution to drive off nitrogen oxides, then, remove it and
cool it down. Use water to wash the watch glass and the wall of the beaker; transfer it
into a 1,000 mL volumetric flask. Use water to dilute it to the scale, then, mix it up. 1
mL of this solution contains 1.0 mg of copper.
3.15 Calcium standard stock solution: weigh-take 1.4000 g of dried pure calcium oxide
[w(CaO) ≥ 99.99%] in a beaker; slowly add 50 mL of hydrochloric acid (3.3) and cover the
continuously measured for 5 times. The relative standard deviation of the absolute
intensity of the emitted light shall be less than 0.8%.
4.4 Linearity of Working Curve
In terms of the linearity of the working curve, the correlation coefficient shall be greater
than 0.999.
5 Specimen
5.1 The specimen shall pass through a 50 μm sieve.
5.2 Before analysis, the specimen shall be dried at 110 °C ± 5°C for 2 h and placed in
a desiccator to cool down to room temperature.
6 Analytical Procedures
6.1 Specimen
Weigh-take 0.20 g of specimen, accurate to 0.0001 g.
6.2 Number of Determinations
Independently conduct two determinations; take the average value.
6.3 Blank Test
Conduct a blank test on the accompanying specimen.
6.4 Determination
6.4.1 Processing of specimen
6.4.1.1 Place the specimen (6.1) in a 100 mL PTFE beaker; add 20 mL of hydrochloric
acid (3.3). Place it on a low-temperature electric hot plate to heat it up and dissolve it.
After it cools down, transfer it to a 200 mL volumetric flask. Use water to dilute to the
scale; mix it up; determine the sodium, magnesium, aluminum, potassium, copper,
calcium, iron, zinc and silicon element.
6.4.1.2 Place the specimen (6.1) in a 100 mL beaker; add 20 mL of hydrochloric acid
(3.3). Place it on a low-temperature electric hot plate to heat it up and dissolve it. After
it cools down, transfer it to a 200 mL volumetric flask. Add 2.00 mL of internal standard
solution (3.5); use water to dilute to the scale; mix it up; determine the lithium, nickel,
cobalt and manganese element.
6.4.2 Preparation of a series of standard solutions
......
Source: Above contents are excerpted from the PDF -- translated/reviewed by: www.chinesestandard.net / Wayne Zheng et al.
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