WO2000032518A1 - Procede de fabrication de manganate de lithium - Google Patents
Procede de fabrication de manganate de lithium Download PDFInfo
- Publication number
- WO2000032518A1 WO2000032518A1 PCT/JP1999/004811 JP9904811W WO0032518A1 WO 2000032518 A1 WO2000032518 A1 WO 2000032518A1 JP 9904811 W JP9904811 W JP 9904811W WO 0032518 A1 WO0032518 A1 WO 0032518A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- manganese dioxide
- lithium manganate
- electrolytic manganese
- lithium
- raw material
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- 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
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G45/00—Compounds of manganese
- C01G45/02—Oxides; Hydroxides
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G45/00—Compounds of manganese
- C01G45/12—Manganates manganites or permanganates
- C01G45/1221—Manganates or manganites with a manganese oxidation state of Mn(III), Mn(IV) or mixtures thereof
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G45/00—Compounds of manganese
- C01G45/12—Manganates manganites or permanganates
- C01G45/1221—Manganates or manganites with a manganese oxidation state of Mn(III), Mn(IV) or mixtures thereof
- C01G45/1242—Manganates or manganites with a manganese oxidation state of Mn(III), Mn(IV) or mixtures thereof of the type [Mn2O4]-, e.g. LiMn2O4, Li[MxMn2-x]O4
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
- H01M4/131—Electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
- H01M4/139—Processes of manufacture
- H01M4/1391—Processes of manufacture of electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- 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
- H01M4/485—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of mixed oxides or hydroxides for inserting or intercalating light metals, e.g. LiTi2O4 or LiTi2OxFy
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2002/00—Crystal-structural characteristics
- C01P2002/30—Three-dimensional structures
- C01P2002/32—Three-dimensional structures spinel-type (AB2O4)
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/60—Particles characterised by their size
- C01P2004/61—Micrometer sized, i.e. from 1-100 micrometer
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/40—Electric properties
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Definitions
- the present invention relates to a method for producing lithium manganate. More specifically, the present invention relates to a method for producing a positive electrode material for a non-aqueous electrolyte secondary battery, in which sintering of particles is less likely to occur during sintering, iron content is low, and The present invention relates to a method for producing lithium manganate having characteristics.
- Lithium cobalt oxide is a positive electrode material for non-aqueous electrolyte secondary batteries that meets the above requirements.
- L i C 0 2 and i N i 0 2 have a theoretical capacity of about 280 mAh / g, while L i M n 2 0 4 has a theoretical capacity of about 14 8 m a h / g and small, and it manganese oxide as a raw material is abundant and cheap, since the thermal instability of the charging time, such as L i N i 0 2 no, EV applications such It is considered suitable for.
- the manganese raw material for lithium manganate (L i M n 2 0 4 ) and electrolytic manganese dioxide is suitable because inexpensive and abundant. Usually, electrolytic manganese dioxide is coarsely ground and neutralized after electrolytic deposition and used as a manganese raw material.
- the electrolytic manganese dioxide obtained by the coarse pulverization and neutralization has an average particle size of about 20 to 40 m, and it is necessary to finely pulverize this into an average of about 5 am suitable as a manganese raw material.
- the average particle size of the obtained electrolytic manganese dioxide is about 1 Owm, and lithium manganate is produced using such electrolytic manganese dioxide, and the nonaqueous electrolyte secondary battery is manufactured. Poor coatability when used as positive electrode material for In addition, there is a problem that high-rate characteristics are impaired. In addition, there is also a problem that impurities such as iron are mixed into electrolytic manganese dioxide, which adversely affects the properties of lithium manganate.
- the inventors of the present invention have found that, in the pulverization of electrolytic manganese dioxide, the manganese dioxide as a raw material of lithium manganate is reduced to about 5 ⁇ m by using a pulverizer that collides particles with each other. It has been found that the above object can be achieved by collecting fine powder produced as a by-product.
- the present invention has been made based on the above-mentioned findings, and roughly pulverizes electrolytically deposited manganese dioxide, finely pulverizes the neutralized electrolytic manganese dioxide with a pulverizer of a type in which particles collide with each other, and then sieves.
- An object of the present invention is to provide a method for producing lithium manganate, wherein the obtained electrolytic manganese dioxide having an average particle size of 3 to 20 m is mixed with a lithium raw material and fired.
- FIG. 1 is a schematic view showing one embodiment of the production method of the present invention. BEST MODE FOR CARRYING OUT THE INVENTION
- FIG. 1 is a schematic diagram showing one embodiment of the production method of the present invention.
- 1 is an electrolytic manganese dioxide storage tank
- 2 is a powder feeder
- 3 is a crusher (a crusher that collides particles with each other)
- 4 is a sieve tank
- 5 is a raw material storage tank (A)
- 6 is a lithium raw material
- 7 is a raw material storage tank (B)
- Reference numeral 8 denotes a measuring tank (A)
- 9 denotes a measuring tank (B)
- 10 denotes a mixer
- 11 denotes a hopper
- i2 denotes a firing vessel
- 13 denotes a firing furnace.
- Electrolytic manganese dioxide which is a manganese raw material of lithium manganate, is produced by electrolysis in the electrolytic cell 1. For example, using a manganese sulfate solution of a predetermined concentration as the electrolyte, using a carbon plate for the cathode and a titanium plate for the anode plate, performing electrolysis at a constant current density while heating, and electrolytically depositing manganese dioxide on the anode Let it. Next, the manganese dioxide that has been electrolytically deposited is separated from the anode, roughly pulverized, and then neutralized with sodium hydroxide or the like. The average particle size of the coarsely pulverized and neutralized electrolytic manganese dioxide is about 20 to 40 urn.
- the electrolytic manganese dioxide having an average particle diameter of 20 to 40 m stored in the electrolytic manganese dioxide storage tank 1 is introduced into the pulverizer 3 through the powder quantitative feeder 2 and finely divided. Crushed.
- the crusher 3 used here is a crusher of a type in which particles collide with each other, and examples thereof include a PJM type jet mill manufactured by Nippon Pneumatic Industries, Ltd. and the like. By using such a pulverizer, the average particle size of electrolytic manganese dioxide is 20 ⁇ m or less.
- the average particle size of electrolytic manganese dioxide finely pulverized using a conventional pulverizer is about 15 ⁇ m, and when this electrolytic manganese dioxide is used as a manganese raw material for lithium manganate, the obtained lithium manganate is obtained.
- this is used as a positive electrode material for a non-aqueous electrolyte secondary battery, there is a problem that the coatability is poor and the high-rate characteristics are impaired.
- iron is mixed into the electrolytic manganese dioxide and adversely affects the properties of lithium manganate.
- a pulverizer of the type in which particles collide with each other there is no problem that iron is mixed into electrolytic manganese dioxide.
- the electrolytic manganese dioxide pulverized by the pulverizer 3 in which the particles collide with each other is introduced into the sieve tank 4 and sieved.
- the sieved average particle size of 3 to 20 ⁇ m.
- electrolytic manganese dioxide having an average particle size of 5 m is stored in the raw material storage tank (A) 5.
- the sieved electrolytic manganese dioxide with an average particle size of less than 3 m is released out of the system, collected by a cyclone, etc., and used for new applications.
- This electrolytic manganese dioxide having an average particle diameter of less than 3 m is about 5 to 20% by weight based on the total amount of electrolytic manganese dioxide. It occurs at the time of grinding.
- a fine powder of electrolytic manganese dioxide is not used as a manganese raw material of lithium manganate, sintering of particles caused by such a fine powder during firing is prevented.
- lithium material 6 lithium carbonate (L i 2 C 0 3) , nitric acid lithium (L i N 0 3), but such as lithium hydroxide (L i OH) is used, in particular carbonate Lithium is preferably Used.
- This lithium raw material is stored in the raw material storage tank (B) 7.
- Lithium raw materials such as electrolytic manganese dioxide stored in the raw material storage tank (A) 5 and lithium carbonate stored in the raw material storage tank (B) 6 are stored in the measuring tanks (A) 8 and (B) 9, respectively. It is quantified and mixed by the mixer 10.
- the molar ratio of Li / Mn between the electrolytic manganese dioxide and the lithium raw material is preferably 0.50 to 0.60.
- the mixed raw materials mixed by the mixer 10 are filled in a firing container 12 via a hopper 11.
- the mixed raw material may be used as it is or may be used after granulation.
- the granulation method may be wet or dry, and may be extrusion granulation, tumbling granulation, fluidized granulation, mixed granulation, spray drying granulation, pressure molding granulation, or flake granulation using a roll or the like. .
- the mixed raw material thus filled in the firing vessel 12 is charged into the firing furnace 13 and is heated at 600 to 100 ° C., preferably at 75 to 100 ° C.
- lithium manganate for example, spinel-type lithium manganate is obtained.
- the firing furnace used here include a pusher furnace, a roller hearth kiln furnace, a mouth tarry kiln, and a stationary furnace.
- the firing time is 1 hour or more, preferably 5 to 20 hours. In this firing, the mutual sintering of the particles due to the manganese dioxide of the fine powder described above hardly occurs.
- lithium manganate is obtained. As described above, this lithium manganate has little iron content. This lithium manganate has good coatability and is suitably used as a positive electrode material of a nonaqueous electrolyte secondary battery.
- the positive electrode material, a conductive material such as carbon black, and a binder such as a Teflon binder are mixed to form a positive electrode mixture, and the negative electrode is lithium or lithium such as carbon.
- Materials that can occlude and desorb nitrogen are used, and lithium salts such as lithium hexafluoride (L i PF 6 ) are used as the non-aqueous electrolyte.
- the force used is one dissolved in a mixed solvent such as dimethyl carbonate and the like, and is not particularly limited.
- the non-aqueous electrolyte secondary battery of the present invention can improve battery characteristics such as high-rate characteristics. Industrial applicability
- lithium manganate is obtained in which sintering hardly occurs during firing, iron content is small, and good battery characteristics are obtained when used as a positive electrode material for a non-aqueous electrolyte secondary battery.
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP99940669A EP1074514A4 (en) | 1998-12-02 | 1999-09-06 | METHOD FOR PRODUCING LITHIUM MANGANATES |
US09/581,428 US6409985B1 (en) | 1998-12-02 | 1999-09-06 | Method for producing lithium manganate |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10343239A JP3048352B1 (ja) | 1998-12-02 | 1998-12-02 | マンガン酸リチウムの製造方法 |
JP10/343239 | 1998-12-02 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2000032518A1 true WO2000032518A1 (fr) | 2000-06-08 |
Family
ID=18360003
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP1999/004811 WO2000032518A1 (fr) | 1998-12-02 | 1999-09-06 | Procede de fabrication de manganate de lithium |
Country Status (4)
Country | Link |
---|---|
US (1) | US6409985B1 (ja) |
EP (1) | EP1074514A4 (ja) |
JP (1) | JP3048352B1 (ja) |
WO (1) | WO2000032518A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8003254B2 (en) | 2004-01-22 | 2011-08-23 | The Gillette Company | Battery cathodes |
US8137842B2 (en) | 2004-01-22 | 2012-03-20 | The Gillette Company | Battery cathodes |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1282180A1 (en) * | 2001-07-31 | 2003-02-05 | Xoliox SA | Process for producing Li4Ti5O12 and electrode materials |
CA2478698C (en) * | 2002-03-08 | 2012-05-29 | Altair Nanomaterials Inc. | Process for making nano-sized and sub-micron-sized lithium-transition metal oxides |
US20050164085A1 (en) * | 2004-01-22 | 2005-07-28 | Bofinger Todd E. | Cathode material for lithium battery |
CA2626554A1 (en) * | 2005-10-21 | 2007-04-26 | Altairnano, Inc. | Lithium ion batteries |
JP4673287B2 (ja) * | 2006-12-25 | 2011-04-20 | 日本電工株式会社 | スピネル型リチウムマンガン酸化物及びその製造方法 |
WO2008121660A2 (en) * | 2007-03-30 | 2008-10-09 | Altairnano, Inc. | Method for preparing a lithium ion cell |
JP5427993B2 (ja) * | 2009-03-26 | 2014-02-26 | 日本電工株式会社 | マンガン系リチウムイオン二次電池の有価資源回収方法その装置 |
US8333950B2 (en) * | 2009-08-27 | 2012-12-18 | Honeywell International Inc. | Process for the preparation of lithium metal oxides involving fluidized bed techniques |
JP2011154811A (ja) * | 2010-01-26 | 2011-08-11 | Dowa Eco-System Co Ltd | リチウムの浸出方法及びリチウムの回収方法 |
CN104843795B (zh) * | 2015-04-30 | 2016-08-24 | 昆明理工大学 | 一种微波辅助制备锰氧化物晶须的方法 |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
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JPH05174823A (ja) * | 1991-12-18 | 1993-07-13 | Hitachi Maxell Ltd | リチウム二次電池およびその製造方法 |
JPH06295724A (ja) * | 1993-04-02 | 1994-10-21 | Mitsui Mining & Smelting Co Ltd | リチウム二次電池用マンガン酸リチウムの製造方法 |
JPH08295516A (ja) * | 1995-04-21 | 1996-11-12 | Moli Energy 1990 Ltd | リチウムマンガン酸化物挿入化合物およびその再充電可能電池への使用 |
JPH0963583A (ja) * | 1995-08-30 | 1997-03-07 | Toshiba Battery Co Ltd | リチウム二次電池 |
JPH09213333A (ja) * | 1996-02-05 | 1997-08-15 | Japan Metals & Chem Co Ltd | リチウム電池用複合酸化物およびその製造方法 |
JPH10265224A (ja) * | 1997-03-26 | 1998-10-06 | Mitsubishi Chem Corp | マンガン酸リチウムの製造方法及び非水溶媒二次電池 |
JPH11126607A (ja) * | 1997-10-23 | 1999-05-11 | Japan Metals & Chem Co Ltd | リチウム二次電池用リチウムマンガン化合物およびその製造方法 |
Family Cites Families (11)
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JPH0380121A (ja) | 1989-08-22 | 1991-04-04 | Mitsui Mining & Smelting Co Ltd | リチウム二次電池用二酸化マンガンの製造方法 |
JPH03122968A (ja) | 1989-10-05 | 1991-05-24 | Mitsui Mining & Smelting Co Ltd | リチウム一次電池用二酸化マンガンの製造方法 |
JP2855900B2 (ja) | 1991-08-28 | 1999-02-10 | 松下電器産業株式会社 | 非水電解液二次電池用活物質の製造方法 |
JPH0797216A (ja) | 1993-09-29 | 1995-04-11 | Tosoh Corp | リチウムマンガン複合酸化物およびその製造法並びにその用途 |
FR2721308B1 (fr) * | 1994-06-21 | 1996-10-11 | Commissariat Energie Atomique | Composés d'insertion à base d'oxyde de manganèse, utilisables comme électrode positive dans un accumulateur au lithium. |
EP0762521B1 (en) * | 1995-09-06 | 1999-03-10 | Fuji Photo Film Co., Ltd. | Lithium ion secondary battery |
EP0789410B1 (en) * | 1996-02-02 | 2000-03-15 | Matsushita Electric Industrial Co., Ltd. | Batteries and a manufacturing method of postitive active material for the batteries |
JPH10172567A (ja) | 1996-12-17 | 1998-06-26 | Nikki Kagaku Kk | マンガン酸リチウムの製法 |
US5766796A (en) * | 1997-05-06 | 1998-06-16 | Eic Laboratories, Inc. | Passivation-free solid state battery |
CA2240805C (en) * | 1997-06-19 | 2005-07-26 | Tosoh Corporation | Spinel-type lithium-manganese oxide containing heteroelements, preparation process and use thereof |
US6071646A (en) * | 1997-08-26 | 2000-06-06 | Kyushu Ceramics Industry Co., Ltd. | Spinel compounds as cathodes for lithium materials |
-
1998
- 1998-12-02 JP JP10343239A patent/JP3048352B1/ja not_active Expired - Lifetime
-
1999
- 1999-09-06 EP EP99940669A patent/EP1074514A4/en not_active Withdrawn
- 1999-09-06 WO PCT/JP1999/004811 patent/WO2000032518A1/ja not_active Application Discontinuation
- 1999-09-06 US US09/581,428 patent/US6409985B1/en not_active Expired - Lifetime
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
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JPH05174823A (ja) * | 1991-12-18 | 1993-07-13 | Hitachi Maxell Ltd | リチウム二次電池およびその製造方法 |
JPH06295724A (ja) * | 1993-04-02 | 1994-10-21 | Mitsui Mining & Smelting Co Ltd | リチウム二次電池用マンガン酸リチウムの製造方法 |
JPH08295516A (ja) * | 1995-04-21 | 1996-11-12 | Moli Energy 1990 Ltd | リチウムマンガン酸化物挿入化合物およびその再充電可能電池への使用 |
JPH0963583A (ja) * | 1995-08-30 | 1997-03-07 | Toshiba Battery Co Ltd | リチウム二次電池 |
JPH09213333A (ja) * | 1996-02-05 | 1997-08-15 | Japan Metals & Chem Co Ltd | リチウム電池用複合酸化物およびその製造方法 |
JPH10265224A (ja) * | 1997-03-26 | 1998-10-06 | Mitsubishi Chem Corp | マンガン酸リチウムの製造方法及び非水溶媒二次電池 |
JPH11126607A (ja) * | 1997-10-23 | 1999-05-11 | Japan Metals & Chem Co Ltd | リチウム二次電池用リチウムマンガン化合物およびその製造方法 |
Non-Patent Citations (1)
Title |
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See also references of EP1074514A4 * |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8003254B2 (en) | 2004-01-22 | 2011-08-23 | The Gillette Company | Battery cathodes |
US8137842B2 (en) | 2004-01-22 | 2012-03-20 | The Gillette Company | Battery cathodes |
US8313859B2 (en) | 2004-01-22 | 2012-11-20 | The Gillette Company | Battery cathodes |
Also Published As
Publication number | Publication date |
---|---|
JP2000169151A (ja) | 2000-06-20 |
EP1074514A1 (en) | 2001-02-07 |
JP3048352B1 (ja) | 2000-06-05 |
US6409985B1 (en) | 2002-06-25 |
EP1074514A4 (en) | 2006-03-22 |
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