CN101470078A - 磷酸亚铁锂正极材料中各种价态铁元素含量的测定方法 - Google Patents
磷酸亚铁锂正极材料中各种价态铁元素含量的测定方法 Download PDFInfo
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- CN101470078A CN101470078A CNA2007101253943A CN200710125394A CN101470078A CN 101470078 A CN101470078 A CN 101470078A CN A2007101253943 A CNA2007101253943 A CN A2007101253943A CN 200710125394 A CN200710125394 A CN 200710125394A CN 101470078 A CN101470078 A CN 101470078A
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- iron
- ferrous
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract description 59
- 238000000034 method Methods 0.000 title claims abstract description 26
- GELKBWJHTRAYNV-UHFFFAOYSA-K lithium iron phosphate Chemical compound [Li+].[Fe+2].[O-]P([O-])([O-])=O GELKBWJHTRAYNV-UHFFFAOYSA-K 0.000 title claims abstract description 22
- 239000010405 anode material Substances 0.000 title 1
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 claims abstract description 63
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims abstract description 43
- VTLYFUHAOXGGBS-UHFFFAOYSA-N Fe3+ Chemical compound [Fe+3] VTLYFUHAOXGGBS-UHFFFAOYSA-N 0.000 claims abstract description 22
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims abstract description 22
- 229910052742 iron Inorganic materials 0.000 claims abstract description 20
- 239000002253 acid Substances 0.000 claims abstract description 16
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 claims abstract description 13
- TXUICONDJPYNPY-UHFFFAOYSA-N (1,10,13-trimethyl-3-oxo-4,5,6,7,8,9,11,12,14,15,16,17-dodecahydrocyclopenta[a]phenanthren-17-yl) heptanoate Chemical compound C1CC2CC(=O)C=C(C)C2(C)C2C1C1CCC(OC(=O)CCCCCC)C1(C)CC2 TXUICONDJPYNPY-UHFFFAOYSA-N 0.000 claims abstract description 10
- 229910021626 Tin(II) chloride Inorganic materials 0.000 claims abstract description 10
- 239000001119 stannous chloride Substances 0.000 claims abstract description 10
- 235000011150 stannous chloride Nutrition 0.000 claims abstract description 10
- 229910021578 Iron(III) chloride Inorganic materials 0.000 claims abstract description 3
- 230000001681 protective effect Effects 0.000 claims abstract description 3
- KMUONIBRACKNSN-UHFFFAOYSA-N potassium dichromate Substances [K+].[K+].[O-][Cr](=O)(=O)O[Cr]([O-])(=O)=O KMUONIBRACKNSN-UHFFFAOYSA-N 0.000 claims description 41
- 239000012086 standard solution Substances 0.000 claims description 24
- 239000000463 material Substances 0.000 claims description 20
- 239000010406 cathode material Substances 0.000 claims description 17
- 230000003647 oxidation Effects 0.000 claims description 15
- 238000007254 oxidation reaction Methods 0.000 claims description 15
- 238000004448 titration Methods 0.000 claims description 15
- SOCTUWSJJQCPFX-UHFFFAOYSA-N dichromate(2-) Chemical compound [O-][Cr](=O)(=O)O[Cr]([O-])(=O)=O SOCTUWSJJQCPFX-UHFFFAOYSA-N 0.000 claims description 14
- 238000008575 Iron Assay Methods 0.000 claims description 13
- 238000006243 chemical reaction Methods 0.000 claims description 6
- LWJROJCJINYWOX-UHFFFAOYSA-L mercury dichloride Chemical compound Cl[Hg]Cl LWJROJCJINYWOX-UHFFFAOYSA-L 0.000 claims description 5
- 238000003556 assay Methods 0.000 claims description 4
- 229910052493 LiFePO4 Inorganic materials 0.000 abstract description 2
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 abstract 3
- 229910001448 ferrous ion Inorganic materials 0.000 abstract 3
- 229910052700 potassium Inorganic materials 0.000 abstract 3
- 239000011591 potassium Substances 0.000 abstract 3
- 238000000691 measurement method Methods 0.000 abstract 2
- 150000002500 ions Chemical class 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 21
- 229910010707 LiFePO 4 Inorganic materials 0.000 description 11
- 229910010710 LiFePO Inorganic materials 0.000 description 10
- 238000005303 weighing Methods 0.000 description 7
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 6
- 229910017052 cobalt Inorganic materials 0.000 description 6
- 239000010941 cobalt Substances 0.000 description 6
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 6
- 229910052744 lithium Inorganic materials 0.000 description 6
- 239000000243 solution Substances 0.000 description 6
- 238000003860 storage Methods 0.000 description 6
- QCJQWJKKTGJDCM-UHFFFAOYSA-N [P].[S] Chemical compound [P].[S] QCJQWJKKTGJDCM-UHFFFAOYSA-N 0.000 description 5
- -1 diphenylamine sulfonic acid sodium salt Chemical class 0.000 description 5
- 238000002156 mixing Methods 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- 238000006396 nitration reaction Methods 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 4
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 4
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 4
- 239000000428 dust Substances 0.000 description 4
- 239000000706 filtrate Substances 0.000 description 4
- 229910001416 lithium ion Inorganic materials 0.000 description 4
- 238000004458 analytical method Methods 0.000 description 3
- 239000003153 chemical reaction reagent Substances 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 238000013019 agitation Methods 0.000 description 2
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 239000012153 distilled water Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000011010 flushing procedure Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 239000012047 saturated solution Substances 0.000 description 2
- 229910002097 Lithium manganese(III,IV) oxide Inorganic materials 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- RCTYPNKXASFOBE-UHFFFAOYSA-M chloromercury Chemical compound [Hg]Cl RCTYPNKXASFOBE-UHFFFAOYSA-M 0.000 description 1
- 230000008034 disappearance Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 229940116007 ferrous phosphate Drugs 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910000155 iron(II) phosphate Inorganic materials 0.000 description 1
- SDEKDNPYZOERBP-UHFFFAOYSA-H iron(ii) phosphate Chemical compound [Fe+2].[Fe+2].[Fe+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O SDEKDNPYZOERBP-UHFFFAOYSA-H 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
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- Battery Electrode And Active Subsutance (AREA)
Abstract
Description
样品 | 单质铁(%) | 二价铁(%) | 三价铁(%) | 比容量(mAh/g) |
1# | 0 | 99.03 | 0.97 | 167.0 |
2# | 0 | 96.75 | 3.25 | 156.7 |
3# | 0 | 93.63 | 6.37 | 138.2 |
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CNA2007101253943A CN101470078A (zh) | 2007-12-25 | 2007-12-25 | 磷酸亚铁锂正极材料中各种价态铁元素含量的测定方法 |
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CNA2007101253943A CN101470078A (zh) | 2007-12-25 | 2007-12-25 | 磷酸亚铁锂正极材料中各种价态铁元素含量的测定方法 |
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CN101470078A true CN101470078A (zh) | 2009-07-01 |
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Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101609078B (zh) * | 2009-07-16 | 2010-12-08 | 武汉钢铁(集团)公司 | 一种快速测定硫酸渣中全铁的方法 |
CN101949911A (zh) * | 2010-08-09 | 2011-01-19 | 中钢集团安徽天源科技股份有限公司 | 碳包覆磷酸铁锂中亚铁的测定方法 |
CN102141521A (zh) * | 2010-12-29 | 2011-08-03 | 山西太钢不锈钢股份有限公司 | 一种熔化钢锭中全铁的分析方法 |
CN102200533A (zh) * | 2010-03-24 | 2011-09-28 | 上海宝钢工业检测公司 | 一种无铬配位滴定测定铁离子含量的方法 |
CN102590203A (zh) * | 2012-02-03 | 2012-07-18 | 合肥国轩高科动力能源有限公司 | 一种锂离子动力电池正极材料氧化锂铁磷铁源原料中铁含量的测定方法 |
CN102993196A (zh) * | 2012-12-20 | 2013-03-27 | 北京科技大学 | 三唑类衍生物、其制备方法及其纳米粒子和纳米粒子的应用 |
CN104111305A (zh) * | 2014-05-16 | 2014-10-22 | 马钢(集团)控股有限公司 | 一种重铬酸钾容量法测定铁矿石中全铁的新方法 |
CN105548460A (zh) * | 2015-12-30 | 2016-05-04 | 东旭科技集团有限公司 | 一种测定氧化亚锡含量的方法 |
CN105842266A (zh) * | 2016-03-23 | 2016-08-10 | 合肥国轩高科动力能源有限公司 | 一种测定磷酸铁锂中元素含量的荧光分析方法 |
CN106442861A (zh) * | 2016-09-19 | 2017-02-22 | 石横特钢集团有限公司 | 转炉钢渣中价态铁的测定方法 |
CN111077036A (zh) * | 2019-12-30 | 2020-04-28 | 广州傲农生物科技有限公司 | 一种检测各类铁添加剂中二价铁含量的快速测定方法 |
CN111413190A (zh) * | 2019-01-07 | 2020-07-14 | 东莞东阳光科研发有限公司 | 碳包覆磷酸铁锂消解装置、消解方法及检测方法 |
CN114563537A (zh) * | 2022-04-29 | 2022-05-31 | 瑞浦兰钧能源股份有限公司 | 一种磷酸铁锂电池循环寿命的快速判定方法 |
-
2007
- 2007-12-25 CN CNA2007101253943A patent/CN101470078A/zh active Pending
Cited By (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101609078B (zh) * | 2009-07-16 | 2010-12-08 | 武汉钢铁(集团)公司 | 一种快速测定硫酸渣中全铁的方法 |
CN102200533A (zh) * | 2010-03-24 | 2011-09-28 | 上海宝钢工业检测公司 | 一种无铬配位滴定测定铁离子含量的方法 |
CN101949911A (zh) * | 2010-08-09 | 2011-01-19 | 中钢集团安徽天源科技股份有限公司 | 碳包覆磷酸铁锂中亚铁的测定方法 |
CN101949911B (zh) * | 2010-08-09 | 2013-03-20 | 中钢集团安徽天源科技股份有限公司 | 碳包覆磷酸铁锂中亚铁的测定方法 |
CN102141521A (zh) * | 2010-12-29 | 2011-08-03 | 山西太钢不锈钢股份有限公司 | 一种熔化钢锭中全铁的分析方法 |
CN102590203A (zh) * | 2012-02-03 | 2012-07-18 | 合肥国轩高科动力能源有限公司 | 一种锂离子动力电池正极材料氧化锂铁磷铁源原料中铁含量的测定方法 |
CN102993196B (zh) * | 2012-12-20 | 2015-01-28 | 北京科技大学 | 三唑类衍生物、其制备方法及其纳米粒子和纳米粒子的应用 |
CN102993196A (zh) * | 2012-12-20 | 2013-03-27 | 北京科技大学 | 三唑类衍生物、其制备方法及其纳米粒子和纳米粒子的应用 |
CN104111305A (zh) * | 2014-05-16 | 2014-10-22 | 马钢(集团)控股有限公司 | 一种重铬酸钾容量法测定铁矿石中全铁的新方法 |
CN104111305B (zh) * | 2014-05-16 | 2016-05-18 | 马钢(集团)控股有限公司 | 一种重铬酸钾容量法测定铁矿石中全铁的新方法 |
CN105548460A (zh) * | 2015-12-30 | 2016-05-04 | 东旭科技集团有限公司 | 一种测定氧化亚锡含量的方法 |
CN105548460B (zh) * | 2015-12-30 | 2018-01-26 | 东旭科技集团有限公司 | 一种测定氧化亚锡含量的方法 |
CN105842266A (zh) * | 2016-03-23 | 2016-08-10 | 合肥国轩高科动力能源有限公司 | 一种测定磷酸铁锂中元素含量的荧光分析方法 |
CN106442861A (zh) * | 2016-09-19 | 2017-02-22 | 石横特钢集团有限公司 | 转炉钢渣中价态铁的测定方法 |
CN111413190A (zh) * | 2019-01-07 | 2020-07-14 | 东莞东阳光科研发有限公司 | 碳包覆磷酸铁锂消解装置、消解方法及检测方法 |
CN111077036A (zh) * | 2019-12-30 | 2020-04-28 | 广州傲农生物科技有限公司 | 一种检测各类铁添加剂中二价铁含量的快速测定方法 |
CN114563537A (zh) * | 2022-04-29 | 2022-05-31 | 瑞浦兰钧能源股份有限公司 | 一种磷酸铁锂电池循环寿命的快速判定方法 |
CN114563537B (zh) * | 2022-04-29 | 2023-02-24 | 瑞浦兰钧能源股份有限公司 | 一种磷酸铁锂电池循环寿命的快速判定方法 |
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