CN1588675A - Method for preparing ball shape mixed lithium cobaltate and it prepared ball shape mixed lithium cobaltate - Google Patents
Method for preparing ball shape mixed lithium cobaltate and it prepared ball shape mixed lithium cobaltate Download PDFInfo
- Publication number
- CN1588675A CN1588675A CNA2004100626115A CN200410062611A CN1588675A CN 1588675 A CN1588675 A CN 1588675A CN A2004100626115 A CNA2004100626115 A CN A2004100626115A CN 200410062611 A CN200410062611 A CN 200410062611A CN 1588675 A CN1588675 A CN 1588675A
- Authority
- CN
- China
- Prior art keywords
- cobalt
- spherical
- doping
- acid lithium
- doped
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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
- H01M4/52—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron
- H01M4/525—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
-
- 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
-
- 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
-
- 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
Abstract
The invention provides spheral doping lithium cobaltate prepn. method, high-activity doping colbalt hydroxide is prepared by electrolyzing metal cobalt, then to be fired in oxidating atmosphere to produce sphere cobalt orthoplumbate, finally, the spheral cobalt orthoplumbate and lithium carbonate are mixed first to produce high-activity doping lithium cobalate. By the invention, requirement of purity for raw material used to produce doping lithium cobalate is lower to reduce prodn. costs and increase electrochemistry performance of products.
Description
Technical field
The invention belongs to the positive electrode of lithium ion battery, be meant the preparation method of spherical high density doping cobalt acid lithium and the sphere doping cobalt acid lithium of preparation especially.
Background technology
Lithium ion battery is a kind of emerging power supply, and therefore plurality of advantages such as it has, and voltage height, specific energy are big, safety and environmental protection are being subjected to accepting extensively of people.Cobalt acid lithium is to use the most general a kind of material in the positive electrode of lithium ion battery, with respect to other positive electrode, have open circuit voltage height, specific energy big, have extended cycle life and easily synthetic advantage, and can fast charging and discharging.
At present, mainly adopt four cobalt oxides to prepare cobalt acid lithium, the preparation of four cobalt oxides is adopted mostly solubility cobalt salt and carbonate (or oxalates) prepared by co-precipitation is obtained cobalt carbonate (or cobalt oxalate), makes four cobalt oxides by high-temperature calcination then.One of shortcoming that exists is because cobalt carbonate is to adopt the liquid phase reactor method to be prepared, require high to purity of raw materials, and since the reaction be difficult to control cause the nucleation rate of cobalt carbonate (or cobalt oxalate) to be exceedingly fast, so its product cut size is difficult to control, make its particle diameter thin partially, the tap density of the cobalt acid lithium particle that makes of method is low thus, has caused the increase of battery volume.Two of shortcoming is because the cobalt acid lithium grain graininess distribution that the method makes is big and inhomogeneous, has therefore increased the internal resistance of battery to a certain extent.Three of shortcoming is to adopt this method, because of the content of the impurity such as K, Na that contain in the cobalt carbonate precipitation more, therefore inevitably caused in four cobalt oxides that calcining makes impurity such as K, Na more, not only cause mobile relatively poor, and the expense of carrying out three degree processing makes cost increase also than higher.
Summary of the invention
Purpose of the present invention is just for the preparation method's that overcomes existing cobalt acid lithium above-mentioned deficiency, a kind of preparation method of spherical doping cobalt acid lithium is provided, cobalt acid lithium obtained by this method has good fluidity, can reduce the advantage of the internal resistance of cell, thereby improve the lithium ion battery chemical property, and then the raising of battery quality is played a significant role.
The preparation method of spherical doping cobalt acid lithium of the present invention comprises the steps:
(1) at first the alkaline solution that NaOH or potassium hydroxide are mixed with 0.5～2.0M is quantitative with deionized water, be mixed with the cushioning liquid of 0.5～2.0M with the nitric acid ammonia of technical grade or ammonium chloride and ammoniacal liquor;
(2) cushioning liquid of (1) being prepared adds electrolysis tank, and be stirred and heated to a certain temperature between 40～90 ℃, keep constant temperature, making anode with cobalt and doping metals immerses in the electrolyte, carry out electrolysis, add the alkaline solution of being prepared in above-mentioned (1) with fixed flow rate simultaneously, the pH value of keeping reaction system is constant between 10.0～12.0; Charging finishes the back and adds the solution that contains doped metal ion, continues to stir 0.5～1 hour, generates spherical doped with hydrogen cobalt oxide precipitation;
(3) separate spherical doped with hydrogen cobalt oxide precipitation, and use deionized water wash, up to the pH value less than 7.2; Under 60～120 ℃ of conditions, dry then, obtain spherical high density doped with hydrogen cobalt oxide;
(4) above-mentioned doped with hydrogen cobalt oxide is calcined under 300～1000 ℃ oxidizing atmosphere obtained the high-density spherical doped cobaltic-cobaltous oxide in 1～20 hour;
(5) cobaltosic oxide in (4) is mixed with battery-level lithium carbonate, with 700～900 ℃ of heating 5～50 hours, obtaining black-and-blue chemical general formula was Li
1+xCo
1-yM
yO
2Spherical high density doping cobalt acid lithium.
M is other metal cation, i.e. doping metals in the above-mentioned chemical general formula.Described doping metals M is preferably one or more among Ni, Mn, Al, Cu, Cr, Zr, Ti, Nb, the Y etc., and doped chemical content is y, 0≤y≤0.5.Doping metals will significantly improve the chemical property of product.X is the magnitude of interference in the chemical general formula, 0≤x≤0.1.
The preferable voltage of electrolysis is 0.2～20V in the above-mentioned steps (2), and current density is 0.2～20A/dm
2, voltage and electric current are too high to hang down the quality and the production cost that all can influence final products with crossing.
In the above-mentioned steps (5), cobaltosic oxide mixes the mol ratio 1.03: 1 of lithium and cobalt in the mixture that the back forms with battery-level lithium carbonate, to obtain the chemical property of the best.
Cobalt acid lithium of the present invention is to have utilized spherical doped cobaltic-cobaltous oxide and the synthetic high-density lithium cobalt oxide of lithium carbonate, therefore can improve tap density, obviously improves particle size distribution, improves the battery specific energy, reduces the internal resistance of battery.
The present invention also provides a kind of sphere doping cobalt acid lithium that adopts method for preparing, has spheroidal crystal, 5～30 microns of average diameters, bulk density 〉=1.3g/cm
3, tap density 〉=2.3g/cm
3, cobalt acid lithium content 〉=99.5%, other metal cation total content≤1%.
Because the present invention prepares spherical doped with hydrogen cobalt oxide with electrolysis mode, reaction control effectively easily, all can adopt automatic control system in preparation process, to guarantee the strictness control of reaction condition.Products obtained therefrom is analyzed particle with scanning electron microscopy, utilizes the composition of X spectrofluorimetry particle, the products obtained therefrom even particle size distribution, and good sphericity, quality are stable.
Owing to adopt technique scheme, make the technology of the present invention compared with the prior art have following advantage and effect:
(1) because the present invention utilizes metallic cobalt electrolytic preparation cobalt hydroxide, lower to the purity of raw materials requirement, can significantly reduce production costs;
(2) mix with the precipitation reaction of doped metal ion in solution and can obtain the dispersion of doped chemical atom level, can significantly improve homogeneity of product;
(3) the spherical cobalt acid lithium that obtains with spherical doped cobaltic-cobaltous oxide and lithium carbonate synthetic reaction.Its particle size distribution scope is narrower, and has higher sphericity and tap density, therefore the battery specific energy is significantly improved, and internal resistance reduces, and makes the lithium ion battery of making have better chemical property;
(4) because adopt the electrolytic method preparation, the strict easily control of preparation method's process automation degree height, technological parameter has guaranteed product quality stability.
Embodiment
Below in conjunction with specific embodiment spherical doping cobalt acid lithium preparation method of the present invention is described further.
Embodiment 1
(1) at first the alkaline solution that NaOH is mixed with 2M is quantitative, as to be mixed with 2M with the nitric acid ammonia and the ammoniacal liquor of technical grade cushioning liquid with deionized water;
(2) in 10L cube electrolysis tank, the cushioning liquid that adds 3/4 volume in advance is as end liquid, and electric mixer is with 500 rev/mins of stirrings, and is warmed up to 55 degree.In a side of electrolysis tank with the titanium basket as anode, purity be housed be 95% metallic cobalt in the basket, metallic cobalt generates Co at anodic solution
2+Entering solution, is negative electrode with the stainless steel, connects DC power supply, and decomposition voltage is 10V, and the holding current density constant is at 1.5A/dm
2, adopt constant flow pump to add 2 liters of 2M NaOH simultaneously, the flow of regulating NaOH makes the pH value of reaction solution maintain 11.0.After the sodium hydroxide solution charging finishes, add the CuSO of 0.1M
4Solution 20ml continues to stir 30 minutes, purple cobalt hydroxide precipitation occurs.
(3) utilize centrifuge to isolate purple cobalt hydroxide precipitation, use 5 times of deionized water wash 1～3 time then, less than 7.2, in drying oven, be dried to constant weight under 80 ℃ of conditions at last up to the pH value.
(4) cobalt hydroxide 500 grams of getting after the oven dry place Muffle furnace, are heated to 330 ℃ with the programming rate of 5 ℃/min, and constant temperature was calcined in 19 hours, with obtaining black high-density spherical doped cobaltic-cobaltous oxide powder after the stove cooling.
(5) getting the cobaltosic oxide of 7.9g method for preparing and 4.1g lithium carbonate mixes and grinds well.Put into the 100ml crucible then, in Muffle furnace, be heated to 900 ℃, heat and take out the back grinding after 5 hours, obtain black-and-blue cobalt acid lithium powder.
Embodiment 2
(1) it is quantitative at first respectively potassium hydroxide to be mixed with the alkaline solution of 1.0M with deionized water, the cushioning liquid that the nitric acid ammonia of technical grade and ammoniacal liquor are mixed with 1.0M;
(2) in 10L cube electrolysis tank, the cushioning liquid that adds 3/4 volume in advance is as end liquid, and electric mixer is with 500 rev/mins of stirrings, and is warmed up to 90 ℃.A side of electrolysis tank be equipped with put into purity be the nickel basket of 99% metallic cobalt as anode, be negative electrode with the stainless steel, connect DC power supply, decomposition voltage is 19V, the holding current density constant is at 19A/dm
2, adopt constant flow pump to add 1M potassium hydroxide simultaneously, the flow of regulating potassium hydroxide makes the pH value of reaction solution maintain 10.1, fluctuates less than 0.1 up and down.After the potassium hydroxide solution charging finishes, add the CuSO of 0.1M
4Solution 20ml continues to stir 1 hour, purple cobalt hydroxide precipitation occurs.
(3) utilize centrifuge to isolate purple cobalt hydroxide precipitation, use 20 times of deionized water wash 3 times then,, in baking oven, be dried to constant weight with 120 ℃ at last up to becoming the pH value less than 7.2.
(4) cobalt hydroxide 500 grams of getting after the oven dry place Muffle furnace, are heated to 1000 ℃ with the programming rate of 5 ℃/min, and constant temperature was calcined in 1 hour, with obtaining black high-density spherical doped cobaltic-cobaltous oxide powder after the stove cooling.
(5) getting the cobaltosic oxide of 7.9g method for preparing and 4.1g lithium carbonate mixes and grinds well.Put into the 100ml crucible then, in Muffle furnace, be heated to 700 ℃, heated 50 hours, take out the back grinding and obtain black-and-blue cobalt acid lithium powder.
Embodiment 3
(1) at first with deionized water that the alkaline solution that NaOH is mixed with 0.5M is quantitative, the sal-ammoniac of technical grade and ammoniacal liquor are mixed with the cushioning liquid of 0.5M;
(2) in 10L cube electrolysis tank, the cushioning liquid that adds 3/4 volume in advance is as end liquid, and electric mixer is with 500 rev/mins of stirrings, and is warmed up to 40 ℃.A side of electrolysis tank be equipped with put into purity be the titanium basket of 90% metallic cobalt as anode, be negative electrode with the stainless steel, connect DC power supply, decomposition voltage is 0.3V, the holding current density constant is at 0.3A/dm
2, adopt constant flow pump to add 0.5M NaOH simultaneously, the flow of regulating NaOH makes the pH value of reaction solution maintain 11.8.After the sodium hydroxide solution charging finishes, add the CuSO of 0.1M
4Solution 20ml continues to stir 30 minutes, purple cobalt hydroxide precipitation occurs.
(3) utilize centrifuge to isolate purple cobalt hydroxide precipitation, use 15 times of deionized water wash 1～3 time then, up to becoming the pH value less than 7.2, at last in drying oven 60 ℃ be dried to constant weight, by scanning electron microscopy particle is analyzed, result such as Fig. 1, its sphericity is not only higher, and distribution of particle sizes is more even.
(4) cobalt hydroxide 500 grams of getting after the oven dry place Muffle furnace, are heated to 700 ℃ with the programming rate of 5 ℃/min, and constant temperature was calcined in 12 hours, with obtaining black high-density spherical doped cobaltic-cobaltous oxide powder after the stove cooling.
(5) getting the cobaltosic oxide of 7.9g method for preparing and 4.1g lithium carbonate mixes and grinds well.Put into the 100ml crucible then, in Muffle furnace, be heated to 800 ℃, heated 30 hours, take out the back grinding and obtain black-and-blue cobalt acid lithium powder.
Embodiment 4
A kind of spherical doping cobalt acid lithium has spheroidal crystal, 5～30 microns of average diameters, bulk density 〉=1.3g/cm
3, tap density 〉=2.3g/cm
3, cobalt acid lithium content 〉=99.5%, other metal cation total content≤1%.
Claims (5)
1, a kind of preparation method of spherical doping cobalt acid lithium comprises the steps:
(1) at first NaOH or potassium hydroxide are mixed with the alkaline solution of 0.5～2.0M, are mixed with the cushioning liquid of 0.5～2.0M with the nitric acid ammonia of technical grade or ammonium chloride and ammoniacal liquor with deionized water;
(2) cushioning liquid of being prepared in above-mentioned (1) is added electrolysis tank, and be stirred and heated to a certain temperature between 40～90 ℃, keep constant temperature, making anode with cobalt and doping metals immerses in the electrolyte, carry out electrolysis, add the alkaline solution that (1) is prepared with fixed flow rate simultaneously, the pH value of keeping reaction system is constant between 10.0～12.0; Charging finishes the back and adds the solution that contains doped metal ion, continues to stir 0.5～1 hour, generates spherical doped with hydrogen cobalt oxide precipitation;
(3) separate spherical doped with hydrogen cobalt oxide precipitation, and use deionized water wash, up to the pH value less than 7.2; Under 60～120 ℃ of conditions, dry then, obtain spherical highdensity doped with hydrogen cobalt oxide;
(4) above-mentioned doped with hydrogen cobalt oxide is calcined under 300～1000 ℃ oxidizing atmosphere obtained the high-density spherical doped cobaltic-cobaltous oxide in 1～20 hour;
(5) cobaltosic oxide in (4) is mixed with battery-level lithium carbonate, and be heated to 5～50 hours at 700～900 ℃, obtaining black-and-blue chemical general formula is Li
1+xCo
1-yM
yO
2Spherical high density doping cobalt acid lithium.
2, the preparation method of spherical doping cobalt acid lithium as claimed in claim 1, it is characterized in that: the preferable voltage of electrolytic process is 0.2～20V in the above-mentioned steps (2), and current density is 0.2～20A/dm
2
3, the preparation method of spherical doping cobalt acid lithium as claimed in claim 1 or 2, it is characterized in that: one or more among the preferred Ni of described doping metals M, Mn, Al, Cu, Cr, Zr, Ti, Nb, the Y etc., doped chemical content is y, 0≤y≤0.5.
4, the preparation method of spherical doping cobalt acid lithium as claimed in claim 1 or 2 is characterized in that: in the described step (5), cobaltosic oxide mixes the mol ratio 1.03: 1 of lithium and cobalt in the mixture of formation afterwards with battery-level lithium carbonate.
5, a kind of sphere doping cobalt acid lithium that is prepared by the preparation method of the described spherical doping cobalt acid lithium of claim 1 is characterized in that: have spheroidal crystal, 5～30 microns of average diameters, bulk density 〉=1.3g/cm
3, tap density 〉=2.3g/cm
3, cobalt acid lithium content 〉=99.5%, other metal cation total content≤1%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100626115A CN1259739C (en) | 2004-06-30 | 2004-06-30 | Method for preparing ball shape mixed lithium cobaltate and it prepared ball shape mixed lithium cobaltate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100626115A CN1259739C (en) | 2004-06-30 | 2004-06-30 | Method for preparing ball shape mixed lithium cobaltate and it prepared ball shape mixed lithium cobaltate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1588675A true CN1588675A (en) | 2005-03-02 |
| CN1259739C CN1259739C (en) | 2006-06-14 |
Family
ID=34603740
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100626115A Expired - Fee Related CN1259739C (en) | 2004-06-30 | 2004-06-30 | Method for preparing ball shape mixed lithium cobaltate and it prepared ball shape mixed lithium cobaltate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1259739C (en) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103833088A (en) * | 2012-11-23 | 2014-06-04 | 宁波科博特钴镍有限公司 | Method for preparing doped spherical cobaltosic oxide |
| US10084187B2 (en) | 2016-09-20 | 2018-09-25 | Apple Inc. | Cathode active materials having improved particle morphologies |
| US10128494B2 (en) | 2014-08-01 | 2018-11-13 | Apple Inc. | High-density precursor for manufacture of composite metal oxide cathodes for Li-ion batteries |
| US10141572B2 (en) | 2016-03-14 | 2018-11-27 | Apple Inc. | Cathode active materials for lithium-ion batteries |
| US10297821B2 (en) | 2015-09-30 | 2019-05-21 | Apple Inc. | Cathode-active materials, their precursors, and methods of forming |
| US10597307B2 (en) | 2016-09-21 | 2020-03-24 | Apple Inc. | Surface stabilized cathode material for lithium ion batteries and synthesizing method of the same |
| US10615413B2 (en) | 2013-03-12 | 2020-04-07 | Apple Inc. | High voltage, high volumetric energy density li-ion battery using advanced cathode materials |
| CN111477986A (en) * | 2020-04-15 | 2020-07-31 | 中南大学 | Method for preparing ternary lithium ion battery precursor by electrolyzing sodium sulfate waste liquid |
| CN111564612A (en) * | 2020-04-07 | 2020-08-21 | 江门市科恒实业股份有限公司 | High-thermal-conductivity and high-electrical-conductivity lithium battery positive electrode material and preparation method thereof |
| CN111825125A (en) * | 2020-09-16 | 2020-10-27 | 金驰能源材料有限公司 | Doped basic cobalt carbonate/cobalt carbonate composite precursor and preparation method and application thereof |
| US11695108B2 (en) | 2018-08-02 | 2023-07-04 | Apple Inc. | Oxide mixture and complex oxide coatings for cathode materials |
| US11749799B2 (en) | 2018-08-17 | 2023-09-05 | Apple Inc. | Coatings for cathode active materials |
| US11757096B2 (en) | 2019-08-21 | 2023-09-12 | Apple Inc. | Aluminum-doped lithium cobalt manganese oxide batteries |
-
2004
- 2004-06-30 CN CNB2004100626115A patent/CN1259739C/en not_active Expired - Fee Related
Cited By (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103833088A (en) * | 2012-11-23 | 2014-06-04 | 宁波科博特钴镍有限公司 | Method for preparing doped spherical cobaltosic oxide |
| US10615413B2 (en) | 2013-03-12 | 2020-04-07 | Apple Inc. | High voltage, high volumetric energy density li-ion battery using advanced cathode materials |
| US10128494B2 (en) | 2014-08-01 | 2018-11-13 | Apple Inc. | High-density precursor for manufacture of composite metal oxide cathodes for Li-ion batteries |
| US10347909B2 (en) | 2014-08-01 | 2019-07-09 | Apple Inc. | High-density precursor for manufacture of composite metal oxide cathodes for li-ion batteries |
| US10297821B2 (en) | 2015-09-30 | 2019-05-21 | Apple Inc. | Cathode-active materials, their precursors, and methods of forming |
| US10141572B2 (en) | 2016-03-14 | 2018-11-27 | Apple Inc. | Cathode active materials for lithium-ion batteries |
| US11870069B2 (en) | 2016-03-14 | 2024-01-09 | Apple Inc. | Cathode active materials for lithium-ion batteries |
| US10164256B2 (en) | 2016-03-14 | 2018-12-25 | Apple Inc. | Cathode active materials for lithium-ion batteries |
| US11362331B2 (en) | 2016-03-14 | 2022-06-14 | Apple Inc. | Cathode active materials for lithium-ion batteries |
| US11114663B2 (en) | 2016-09-20 | 2021-09-07 | Apple Inc. | Cathode active materials having improved particle morphologies |
| US10297823B2 (en) | 2016-09-20 | 2019-05-21 | Apple Inc. | Cathode active materials having improved particle morphologies |
| US10593941B2 (en) | 2016-09-20 | 2020-03-17 | Apple Inc. | Cathode active materials having improved particle morphologies |
| US10084187B2 (en) | 2016-09-20 | 2018-09-25 | Apple Inc. | Cathode active materials having improved particle morphologies |
| US11462736B2 (en) | 2016-09-21 | 2022-10-04 | Apple Inc. | Surface stabilized cathode material for lithium ion batteries and synthesizing method of the same |
| US10597307B2 (en) | 2016-09-21 | 2020-03-24 | Apple Inc. | Surface stabilized cathode material for lithium ion batteries and synthesizing method of the same |
| US11695108B2 (en) | 2018-08-02 | 2023-07-04 | Apple Inc. | Oxide mixture and complex oxide coatings for cathode materials |
| US11749799B2 (en) | 2018-08-17 | 2023-09-05 | Apple Inc. | Coatings for cathode active materials |
| US11757096B2 (en) | 2019-08-21 | 2023-09-12 | Apple Inc. | Aluminum-doped lithium cobalt manganese oxide batteries |
| CN111564612A (en) * | 2020-04-07 | 2020-08-21 | 江门市科恒实业股份有限公司 | High-thermal-conductivity and high-electrical-conductivity lithium battery positive electrode material and preparation method thereof |
| CN111564612B (en) * | 2020-04-07 | 2022-09-06 | 江门市科恒实业股份有限公司 | High-thermal-conductivity and high-electrical-conductivity lithium battery positive electrode material and preparation method thereof |
| CN111477986A (en) * | 2020-04-15 | 2020-07-31 | 中南大学 | Method for preparing ternary lithium ion battery precursor by electrolyzing sodium sulfate waste liquid |
| CN111477986B (en) * | 2020-04-15 | 2023-04-18 | 中南大学 | Method for preparing ternary lithium ion battery precursor by electrolyzing sodium sulfate waste liquid |
| CN111825125A (en) * | 2020-09-16 | 2020-10-27 | 金驰能源材料有限公司 | Doped basic cobalt carbonate/cobalt carbonate composite precursor and preparation method and application thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1259739C (en) | 2006-06-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10446830B2 (en) | High-voltage ternary positive electrode material for lithium-ion battery and preparation method thereof | |
| CN108217753B (en) | Gradient doped cobaltosic oxide material and preparation method thereof | |
| CN103066275B (en) | Preparation method of spherical high-voltage lithium nickel manganate anode material | |
| CN103296263B (en) | Preparation method of lithium-ion battery positive electrode material spherical nickel-cobalt-lithium aluminate | |
| CN1259739C (en) | Method for preparing ball shape mixed lithium cobaltate and it prepared ball shape mixed lithium cobaltate | |
| CN109461891B (en) | High-voltage lithium cobalt oxide cathode material and preparation method thereof | |
| CN108557905A (en) | A kind of lithium-rich manganese base material presoma and preparation method thereof, lithium-rich manganese-based anode material and preparation method thereof, lithium battery | |
| CN104485452A (en) | High-temperature type lithium manganate anode material for power lithium ion battery and preparation method of high-temperature type lithium manganate anode material | |
| CN115000399B (en) | Spherical-like sodium ion battery positive electrode material, preparation method thereof and sodium ion battery | |
| CN101702375B (en) | Preparation method of element doping manganese dioxide electrode material for super capacitor | |
| CN108899538A (en) | A kind of ternary sodium-ion battery positive material, preparation method and sodium-ion battery | |
| CN108899480A (en) | A kind of long circulation life height ratio capacity nickel cobalt aluminium positive electrode and preparation method thereof | |
| CN108550822A (en) | A kind of lanthanum, the nickelic ternary anode material of lithium battery of magnesium codope and preparation method | |
| CN113562777B (en) | Preparation method and application of low-impurity-content multi-element doped anode material precursor | |
| CN108365216A (en) | The novel nickelic tertiary cathode material of one kind and preparation | |
| CN113517424A (en) | Cobalt-free positive electrode material of high-voltage lithium ion battery and preparation method thereof | |
| CN1901259A (en) | Positive pole material of lithium ion cell | |
| CN102938458A (en) | Method for preparing fused salt-oxalate co-precipitation of lithium-rich materials for lithium batteries | |
| CN114843469A (en) | MgFe 2 O 4 Modified P2/O3 type nickel-based layered sodium-ion battery positive electrode material and preparation method thereof | |
| CN1172387C (en) | Method for preparing spherical positive pole active material for lithium ion position | |
| CN103187564A (en) | Preparation method for battery anode material LiNi0.5Mn1.5O4 | |
| CN107706410B (en) | Preparation method of double-atmosphere roasting dynamic coating lithium-rich ternary lithium ion battery positive electrode material | |
| CN113461064B (en) | High-capacity cathode material nano Li 1.3 Mn 0.4 Ti 0.3 O 2 Preparation method of (1) | |
| CN108832121B (en) | High-nickel positive electrode material and preparation method thereof | |
| CN112225261B (en) | Lithium-rich manganese-based positive electrode material carbonate precursor and preparation method and application thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060614 Termination date: 20110630 |