JP7403946B2 - 精製リチウム化合物の製造方法及びリチウム遷移金属複合酸化物の製造方法 - Google Patents
精製リチウム化合物の製造方法及びリチウム遷移金属複合酸化物の製造方法 Download PDFInfo
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- 150000002642 lithium compounds Chemical class 0.000 title claims description 174
- 229910052723 transition metal Inorganic materials 0.000 title claims description 43
- 238000004519 manufacturing process Methods 0.000 title claims description 42
- 239000002905 metal composite material Substances 0.000 title claims description 39
- 229910052744 lithium Inorganic materials 0.000 title claims description 30
- -1 lithium transition metal Chemical class 0.000 title claims description 21
- 230000005291 magnetic effect Effects 0.000 claims description 88
- 239000000126 substance Substances 0.000 claims description 72
- 239000006148 magnetic separator Substances 0.000 claims description 55
- 238000007885 magnetic separation Methods 0.000 claims description 49
- 238000010304 firing Methods 0.000 claims description 24
- XGZVUEUWXADBQD-UHFFFAOYSA-L lithium carbonate Chemical compound [Li+].[Li+].[O-]C([O-])=O XGZVUEUWXADBQD-UHFFFAOYSA-L 0.000 claims description 22
- 229910052808 lithium carbonate Inorganic materials 0.000 claims description 22
- 150000003624 transition metals Chemical class 0.000 claims description 21
- 230000002776 aggregation Effects 0.000 claims description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 claims description 14
- 239000002245 particle Substances 0.000 claims description 12
- 238000005054 agglomeration Methods 0.000 claims description 11
- 230000004907 flux Effects 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 5
- 238000000034 method Methods 0.000 description 31
- 230000008569 process Effects 0.000 description 20
- 229940125797 compound 12 Drugs 0.000 description 14
- 239000007864 aqueous solution Substances 0.000 description 13
- 239000000843 powder Substances 0.000 description 13
- WMFOQBRAJBCJND-UHFFFAOYSA-M Lithium hydroxide Chemical compound [Li+].[OH-] WMFOQBRAJBCJND-UHFFFAOYSA-M 0.000 description 12
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 10
- 238000006243 chemical reaction Methods 0.000 description 10
- 238000000746 purification Methods 0.000 description 10
- 238000007873 sieving Methods 0.000 description 10
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 8
- 230000000052 comparative effect Effects 0.000 description 7
- 239000007774 positive electrode material Substances 0.000 description 7
- 239000002243 precursor Substances 0.000 description 6
- 239000012535 impurity Substances 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- 239000012266 salt solution Substances 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 238000004220 aggregation Methods 0.000 description 4
- 229910017052 cobalt Inorganic materials 0.000 description 4
- 239000010941 cobalt Substances 0.000 description 4
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000001035 drying Methods 0.000 description 4
- 238000005265 energy consumption Methods 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 4
- 229910052759 nickel Inorganic materials 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 3
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 3
- 239000008139 complexing agent Substances 0.000 description 3
- 239000006247 magnetic powder Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 239000000725 suspension Substances 0.000 description 3
- DHMQDGOQFOQNFH-UHFFFAOYSA-N Glycine Chemical compound NCC(O)=O DHMQDGOQFOQNFH-UHFFFAOYSA-N 0.000 description 2
- OAKJQQAXSVQMHS-UHFFFAOYSA-N Hydrazine Chemical compound NN OAKJQQAXSVQMHS-UHFFFAOYSA-N 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 238000000975 co-precipitation Methods 0.000 description 2
- 229940126543 compound 14 Drugs 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000000696 magnetic material Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 239000003002 pH adjusting agent Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- DDFHBQSCUXNBSA-UHFFFAOYSA-N 5-(5-carboxythiophen-2-yl)thiophene-2-carboxylic acid Chemical compound S1C(C(=O)O)=CC=C1C1=CC=C(C(O)=O)S1 DDFHBQSCUXNBSA-UHFFFAOYSA-N 0.000 description 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 1
- ATRRKUHOCOJYRX-UHFFFAOYSA-N Ammonium bicarbonate Chemical compound [NH4+].OC([O-])=O ATRRKUHOCOJYRX-UHFFFAOYSA-N 0.000 description 1
- KCXVZYZYPLLWCC-UHFFFAOYSA-N EDTA Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O KCXVZYZYPLLWCC-UHFFFAOYSA-N 0.000 description 1
- 239000004471 Glycine Substances 0.000 description 1
- WPQPAQCECMVNAY-UHFFFAOYSA-N acetic acid;1h-pyrimidine-2,4-dione Chemical compound CC(O)=O.CC(O)=O.O=C1C=CNC(=O)N1 WPQPAQCECMVNAY-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 150000008044 alkali metal hydroxides Chemical class 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000001099 ammonium carbonate Substances 0.000 description 1
- 235000012501 ammonium carbonate Nutrition 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 150000001868 cobalt Chemical class 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 229910003002 lithium salt Inorganic materials 0.000 description 1
- 159000000002 lithium salts Chemical class 0.000 description 1
- 150000002696 manganese Chemical class 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 150000002815 nickel Chemical class 0.000 description 1
- MGFYIUFZLHCRTH-UHFFFAOYSA-N nitrilotriacetic acid Chemical compound OC(=O)CN(CC(O)=O)CC(O)=O MGFYIUFZLHCRTH-UHFFFAOYSA-N 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 229910000314 transition metal oxide Inorganic materials 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
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- C01D—COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
- C01D15/00—Lithium compounds
- C01D15/08—Carbonates; Bicarbonates
-
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- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G53/00—Compounds of nickel
- C01G53/40—Nickelates
- C01G53/42—Nickelates containing alkali metals, e.g. LiNiO2
-
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- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C1/00—Magnetic separation
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- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C1/00—Magnetic separation
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- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C1/00—Magnetic separation
- B03C1/02—Magnetic separation acting directly on the substance being separated
- B03C1/025—High gradient magnetic separators
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- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C1/00—Magnetic separation
- B03C1/02—Magnetic separation acting directly on the substance being separated
- B03C1/025—High gradient magnetic separators
- B03C1/031—Component parts; Auxiliary operations
- B03C1/033—Component parts; Auxiliary operations characterised by the magnetic circuit
- B03C1/0335—Component parts; Auxiliary operations characterised by the magnetic circuit using coils
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C1/00—Magnetic separation
- B03C1/02—Magnetic separation acting directly on the substance being separated
- B03C1/26—Magnetic separation acting directly on the substance being separated with free falling material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C1/00—Magnetic separation
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- B03C1/30—Combinations with other devices, not otherwise provided for
-
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- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G45/00—Compounds of manganese
- C01G45/12—Manganates manganites or permanganates
-
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- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/48—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides
- H01M4/50—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese
- H01M4/505—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy
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Description
[1]磁性物質を含有する粗製リチウム化合物の凝集をほぐす解砕工程と、
前記解砕された粗製リチウム化合物に対して、磁選機を用いて乾式の磁選を実施して、前記解砕された粗製リチウム化合物から前記磁性物質を除去する磁選処理工程と、
を含む精製リチウム化合物の製造方法。
[2]前記解砕を、目開き40μm以上700μm以下の篩を用いて行う[1]に記載の精製リチウム化合物の製造方法。
[3]前記磁選機が、電磁分離機である[1]または[2]に記載の精製リチウム化合物の製造方法。
[4]前記磁選を、複数回実施する[1]乃至[3]のいずれか1つに記載の精製リチウム化合物の製造方法。
[5]前記磁選を、5回以上実施する[1]乃至[4]のいずれか1つに記載の精製リチウム化合物の製造方法。
[6]前記磁選機に備えられた磁選部の磁束密度が、3000ガウス以上である[1]乃至[5]のいずれか1つに記載の精製リチウム化合物の製造方法。
[7]前記リチウム化合物が、炭酸リチウムを含む[1]乃至[6]のいずれか1つに記載の精製リチウム化合物の製造方法。
[8]前記リチウム化合物が、リチウム遷移金属複合酸化物の製造用である[1]乃至[7]のいずれか1つに記載の精製リチウム化合物の製造方法。
[9]磁性物質を含有する粗製リチウム化合物の凝集をほぐす解砕工程と、
前記解砕された粗製リチウム化合物に対して、磁選機を用いて乾式の磁選を実施して、前記解砕された粗製リチウム化合物から前記磁性物質を除去してリチウム化合物を精製する磁選処理工程と、
前記精製されたリチウム化合物を、遷移金属複合水酸化物または遷移金属複合酸化物と混合後に、焼成する焼成工程と、
を含むリチウム遷移金属複合酸化物の製造方法。
まず、磁性物質を含有する粗製リチウム化合物を解砕して、粗製リチウム化合物の凝集をほぐして分散性を向上させる。解砕工程としては、例えば、図1に示すように、磁性物質を含有する粗製リチウム化合物を篩に通過させる篩処理が挙げられる。篩に通過させる前の凝集した粗製リチウム化合物の平均粒子径は、例えば、1mm~5mm程度である。リチウム化合物及び磁性物質はいずれも粉体であり、リチウム化合物は凝集しやすい性質を有している。粉体の粗製リチウム化合物を篩処理することで、粗製リチウム化合物の凝集の程度を低減させて、粗製リチウム化合物に高い分散状態と流動性を付与する。また、篩処理によって粗製リチウム化合物の凝集の程度を低減させることで、凝集した粗製リチウム化合物内部に取り込まれていた磁性物質が、粗製リチウム化合物の表面付近に位置することとなる。
図1に示すように、解砕(例えば、篩処理)されて凝集がほぐされた状態の粉体状の粗製リチウム化合物に対して、磁選機を用いて乾式の磁選を実施して、篩処理された粗製リチウム化合物から磁性物質を除去する。粗製リチウム化合物から磁性物質を除去することで、粗製リチウム化合物を精製することができる。
粉体の磁性物質を3.0ppm含有する粗製炭酸リチウム10kgを目開き300μmの篩に通過させて篩処理を行った。篩には振動篩機(晃栄産業株式会社製佐藤式振動篩機)を使用した。粗製炭酸リチウム中の磁性物質の含有量は湿式にて磁性粉を回収し測定した。
電磁分離機の仕様は以下の通りである。
スクリーンの磁束密度:12000ガウス
スクリーン形状:格子状、目開き5mm、φ150mm
スクリーン枚数:上下方向に20枚を積層
篩処理した粗製炭酸リチウムを磁選機に2.0kg/分の供給量にて供給した以外は、実施例1と同様にして精製炭酸リチウムを得た。
粗製炭酸リチウムを篩処理せずに磁選機に0.3kg/分の供給量にて供給した以外は、実施例1と同様にして炭酸リチウムを得た。比較例1にて0.3kg/分の供給量としたのは、1.0kg/分の供給量では磁選経路に詰まりが生じ、磁選機に炭酸リチウムを供給することができず、0.3kg/分の供給量が限度であったことによる。
12 粗製リチウム化合物
Claims (6)
- 磁性物質を含有する、平均粒子径が1mm~5mmである粗製リチウム化合物の凝集をほぐす解砕工程と、
前記解砕された粗製リチウム化合物に対して、磁選機を用いて乾式の磁選を実施して、前記解砕された粗製リチウム化合物から前記磁性物質を除去する磁選処理工程と、
を含み、
前記磁選機が、格子状のスクリーンを上下方向に複数層設けた磁選部を有する電磁分離機であり、前記リチウム化合物が、炭酸リチウムを含み、
前記解砕を、目開き150μm以上350μm以下の篩を用いて行う、精製リチウム化合物の製造方法。 - 前記磁選を、複数回実施する請求項1に記載の精製リチウム化合物の製造方法。
- 前記磁選を、5回以上実施する請求項1または2に記載の精製リチウム化合物の製造方法。
- 前記磁選機に備えられた磁選部の磁束密度が、3000ガウス以上である請求項1乃至3のいずれか1項に記載の精製リチウム化合物の製造方法。
- 前記リチウム化合物が、リチウム遷移金属複合酸化物の製造用である請求項1乃至4のいずれか1項に記載の精製リチウム化合物の製造方法。
- 磁性物質を含有する、平均粒子径が1mm~5mmである粗製リチウム化合物の凝集をほぐす解砕工程と、
前記解砕された粗製リチウム化合物に対して、磁選機を用いて乾式の磁選を実施して、前記解砕された粗製リチウム化合物から前記磁性物質を除去してリチウム化合物を精製する磁選処理工程と、
前記精製されたリチウム化合物を、遷移金属複合水酸化物または遷移金属複合酸化物と混合後に、焼成する焼成工程と、
を含み、
前記磁選機が、格子状のスクリーンを上下方向に複数層設けた磁選部を有する電磁分離機であり、前記リチウム化合物が、炭酸リチウムを含み、前記解砕を、目開き150μm以上350μm以下の篩を用いて行う、リチウム遷移金属複合酸化物の製造方法。
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KR1020217003556A KR20210042099A (ko) | 2018-08-20 | 2019-07-08 | 정제 리튬화합물의 제조방법 및 리튬전이금속 복합산화물의 제조방법 |
EP19851496.0A EP3842387A4 (en) | 2018-08-20 | 2019-07-08 | METHOD OF PRODUCTION OF REFINED LITHIUM COMPOUND AND METHOD OF PRODUCTION OF LITHIUM TRANSITION METAL COMPLEX OXIDE |
PCT/JP2019/026933 WO2020039772A1 (ja) | 2018-08-20 | 2019-07-08 | 精製リチウム化合物の製造方法及びリチウム遷移金属複合酸化物の製造方法 |
CN201980054960.7A CN112601716A (zh) | 2018-08-20 | 2019-07-08 | 精制锂化合物的制备方法和锂过渡金属复合氧化物的制备方法 |
US17/167,158 US20210155500A1 (en) | 2018-08-20 | 2021-02-04 | Method for producing purified lithium compound and method for producing lithium transition metal composite oxide |
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Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2011105504A1 (ja) | 2010-02-24 | 2011-09-01 | 旭化成ケミカルズ株式会社 | ポリフェニレンエーテル及びその製造方法 |
JP2013043911A (ja) | 2011-08-23 | 2013-03-04 | Asahi Kasei Chemicals Corp | ポリアセタールの製造方法 |
JP2014229567A (ja) | 2013-05-24 | 2014-12-08 | 日揮触媒化成株式会社 | 正極活物質の製造方法 |
JP2015051384A (ja) | 2013-09-05 | 2015-03-19 | 日本マグネティックス株式会社 | 電磁分離機用スクリーン |
JP2017220334A (ja) | 2016-06-07 | 2017-12-14 | 住友金属鉱山株式会社 | リチウム化合物、このリチウム化合物の製造方法、および非水系電解質二次電池用正極活物質の製造方法 |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6048507A (en) | 1997-12-09 | 2000-04-11 | Limtech | Process for the purification of lithium carbonate |
CN100540496C (zh) * | 2007-12-17 | 2009-09-16 | 段其九 | 一种石英坩埚用石英砂的制备方法 |
JP5596790B2 (ja) * | 2010-12-28 | 2014-09-24 | 三井金属鉱業株式会社 | リチウム二次電池用正極活物質の製造方法 |
GB2503138B (en) * | 2011-03-02 | 2019-05-01 | Mitsui Mining & Smelting Co | Spinel-type lithium manganese-based composite oxide |
WO2013100070A1 (ja) * | 2011-12-27 | 2013-07-04 | 三井金属鉱業株式会社 | スピネル型リチウムマンガン遷移金属酸化物 |
DE102012000914B4 (de) * | 2012-01-18 | 2012-11-15 | Süd-Chemie AG | Verfahren zur Herstellung von hochreinen Elektrodenmaterialien |
CN105452170B (zh) * | 2013-08-01 | 2017-07-11 | 三井金属矿业株式会社 | 含锂锰复合氧化物的制造方法 |
CN103572317A (zh) * | 2013-11-07 | 2014-02-12 | 广西桂柳化工有限责任公司 | 一种电解二氧化锰产品的精制方法 |
EP3094412A1 (en) * | 2014-01-14 | 2016-11-23 | Imerys Ceramics France | Beneficiating process |
CN104162475B (zh) * | 2014-05-16 | 2016-06-29 | 马钢集团设计研究院有限责任公司 | 一种高效节能的贫磁铁矿石联合碎磨磁选新方法 |
CN204523062U (zh) * | 2015-03-27 | 2015-08-05 | 长沙格翎电池材料有限公司 | 一种锂电池材料粉碎除铁机 |
-
2018
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2019
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Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2011105504A1 (ja) | 2010-02-24 | 2011-09-01 | 旭化成ケミカルズ株式会社 | ポリフェニレンエーテル及びその製造方法 |
JP2013043911A (ja) | 2011-08-23 | 2013-03-04 | Asahi Kasei Chemicals Corp | ポリアセタールの製造方法 |
JP2014229567A (ja) | 2013-05-24 | 2014-12-08 | 日揮触媒化成株式会社 | 正極活物質の製造方法 |
JP2015051384A (ja) | 2013-09-05 | 2015-03-19 | 日本マグネティックス株式会社 | 電磁分離機用スクリーン |
JP2017220334A (ja) | 2016-06-07 | 2017-12-14 | 住友金属鉱山株式会社 | リチウム化合物、このリチウム化合物の製造方法、および非水系電解質二次電池用正極活物質の製造方法 |
Non-Patent Citations (1)
Title |
---|
医薬品・化粧品・ファインケミカルズ製造における磁性異物除去技術,化学装置,2014年07月,第56巻 第7号,第53-57頁 |
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