CN102420320A - Cathode material used for lithium battery and preparation method thereof, positive electrode of lithium battery and lithium battery - Google Patents
Cathode material used for lithium battery and preparation method thereof, positive electrode of lithium battery and lithium battery Download PDFInfo
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- CN102420320A CN102420320A CN2011103849967A CN201110384996A CN102420320A CN 102420320 A CN102420320 A CN 102420320A CN 2011103849967 A CN2011103849967 A CN 2011103849967A CN 201110384996 A CN201110384996 A CN 201110384996A CN 102420320 A CN102420320 A CN 102420320A
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Abstract
The invention provides a lithium battery cathode material represented by the general formula LiNi0.5TixMn1.5-xO4, wherein, x is greater than 0 and no more than 0.5. The invention also provides a preparation method for the cathode material, a lithium battery positive electrode prepared from the cathode material and a lithium battery. The cathode material provided in the invention has the advantages of low cost, good environmental protection, high purity and good rate capability.
Description
Technical field
The present invention relates to field of batteries, particularly a kind of positive electrode that is used for lithium battery and preparation method thereof, lithium battery anode and lithium battery.
Background technology
Current, the mankind are being faced with the double challenge that resource is estimated and living environment worsens.For this reason, new material is being made great efforts to research and develop in countries in the world, advances the new concept of low-carbon (LC) life, promotes human society to turn to sustainable development mode energy-saving, capable of circulation by present high energy consumption, the high flow rate life mode of production.Be specially the application of wideling popularize clean energy resource,, and use hybrid vehicle or pure electric automobile to replace using at present the orthodox car of gasoline like the application of solar energy, wind energy at power field.
The application of clean energy resource and novel vapour all be unable to do without medium-and-large-sized energy-storage battery and electrokinetic cell.In numerous energy-storage batteries and electrokinetic cell; Lithium rechargeable battery is owing to have high energy density and long useful life; Replaced traditional ni-mh/NI-G secondary cell gradually, it has the great development prospect at emerging fields such as new-energy automobile, wind-powered electricity generation energy storage and solar energy storages.
Lithium rechargeable battery comprises positive pole, negative pole, is arranged on barrier film and electrolyte between positive pole and the negative pole.Wherein, positive pole comprises matrix and is coated in the coating material on this matrix that coating material comprises positive electrode (positive active material), electric conducting material and binding agent.Wherein, positive electrode is the crucial raw material of lithium rechargeable battery, because positive electrode occupies bigger weight ratio in lithium rechargeable battery, so the positive electrode performance has determined build, fail safe and the electric property of battery.
The positive electrode that uses in the current lithium battery is LiCoO mostly
2, also have partial L iFePO
4And LiNi
1-xCo
xO
2
Cobalt acid lithium has higher specific capacity and cycle characteristics preferably.But, because the abundance of cobalt element in the earth's crust is low, belong to rare metal, therefore cost an arm and a leg, also cause the cost of this kind material higher thus.In addition, cobalt element also has certain toxicity, and is after being discarded by the battery of cobalt acid lithium preparation, bigger to the harm of environment.Therefore, the comparatively cheap and environmental-protecting performance of a kind of price positive electrode preferably need be provided.
LiFePO
4Have Stability Analysis of Structures, raw material is cheap, and cyclicity and fail safe are better, to advantages such as environmental pressure are less, but problem such as it is higher also to exist synthetic cost, and energy density is lower.
LiNi
0.5Mn
1.5O
4Have the same crystal structure of LiMn2O4, therefore also have advantage safe, that multiplying power property is good.Its operating voltage of what is more important is 4.7V, is higher than LiMn
2O
4, therefore have higher power density.But some shortcomings are also arranged, and such as being difficult to prepare the high-purity sample, multiplying power property such as also need improve at problem.
In view of based on above-mentioned some, the present invention considers to have selected in positive electrode, to use titanium elements, prepares the positive electrode that cost is lower, the feature of environmental protection is better, purity is high and multiplying power property is good thus.
Summary of the invention
To the deficiency of prior art, the technical problem that the present invention solves is to provide a kind of positive electrode that is used for lithium battery and preparation method thereof, and the positive electrode cost of preparation provided by the invention is lower, the feature of environmental protection is better, purity is high and multiplying power property is good.
For solving the problems of the technologies described above, technical scheme of the present invention is achieved in that a kind of positive electrode that is used for lithium battery, and especially, said positive electrode is by general formula LiNi
0.5Ti
xMn
1.5-xO
4Expression, in this general formula, 0＜x≤0.5.
Preferably, in above-mentioned positive electrode, in the said general formula, 0.1≤x≤0.2.
Preferably, in above-mentioned positive electrode, in the said general formula, x value 0.1 or 0.15.
Correspondingly, the present invention also provides a kind of preparation method of above-mentioned positive electrode, comprises the steps:
A), adopt the liquid-phase mixing method, manganese source compound, nickel source compound and titanium source compound are mixed in proportion, obtain mixed solution;
B), said mixed solution is carried out spray drying treatment, obtain first mixture;
C), said first mixture is heat-treated, obtain NiTi Mn oxide precursor;
D), said NiTi Mn oxide precursor and Li source compound are mixed and grind, obtain second mixture;
E), said second mixture is heat-treated, obtain positive electrode.
Preferably, in the preparation method of above-mentioned positive electrode, the mol ratio of nickel, titanium and manganese is 0.5: 0.05～0.2: 1.3～1.45 in the said step a).
Preferably, in the preparation method of above-mentioned positive electrode, the mol ratio of NiTi Mn oxide precursor and Li source compound is 0.95～1: 1～1.1 in the said step d).
Preferably, in the preparation method of above-mentioned positive electrode, heat treated temperature is 700～1000 ℃ in the said step c).
Preferably, in the preparation method of above-mentioned positive electrode, heat treatment period is 10～48h in the said step c).
Preferably, in the preparation method of above-mentioned positive electrode, heat treated temperature is 500～800 ℃ in the said step e).
Preferably, in the preparation method of above-mentioned positive electrode, heat treatment period is 10～48h in the said step e).
Preferably, in the preparation method of above-mentioned positive electrode, said manganese source compound is a manganese acetate, and said nickel source compound is a nickel acetate, and said titanium source compound is a titanium dioxide, and said Li source compound is a lithium hydroxide.
The present invention also provides a kind of lithium battery anode, comprises matrix and the coating material that places matrix surface, and said coating material comprises above-mentioned described positive electrode, electric conducting material and binding agent.
The present invention also provides a kind of lithium battery, comprising: above-mentioned described lithium battery anode, negative pole, be arranged on barrier film and electrolyte between positive pole and the negative pole
The positive electrode that utilizes preparation method of the present invention to obtain possesses higher purity and good multiplying power property, and simultaneously, owing to adopted titanium elements, cost is lower, good environmental protection.
Description of drawings
In order to be illustrated more clearly in the technical scheme in the embodiment of the invention; The accompanying drawing of required use is done to introduce simply in will describing embodiment below; Obviously, the accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills; Under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is preparation method's flow chart of positive electrode in the specific embodiment of the invention;
Fig. 2 is the XRD figure spectrum that the embodiment of the invention 1～4 obtains positive electrode;
Fig. 3 is the made cycle characteristics curve of Experimental cell under the little electric current of room temperature of positive electrode by embodiment 1～4 and comparative example 1 preparation.
Embodiment
In order further to understand the present invention, below in conjunction with embodiment the preferred embodiment of the invention is described, describe just to further specifying feature and advantage of the present invention but should be appreciated that these, rather than to the restriction of claim of the present invention.
The embodiment of the invention discloses a kind of positive electrode that is used for lithium battery, have general formula LiNi
0.5Ti
xMn
1.5-xO
4Structure, 0＜x in the general formula≤0.5.Preferably, 0.1≤x≤0.2.Preferred, the x value is 0.1 or 0.15.
This positive electrode comprises lithium primary battery and lithium rechargeable battery in order to the preparation energy storage device.
This positive electrode has spinel structure and 4.7 couchers are made voltage platform.
Positive electrode provided by the invention is a raw material with the comparatively cheap manganese of price, lithium, nickel and titanium, so cost is lower.
Positive electrode provided by the invention adopts titanium elements, does not have toxicity, can not produce harmful effect to environment after discarding, so good environmental protection.
Positive electrode provided by the invention adopts titanium elements, can improve the diffusion velocity of lithium ion in crystal, thereby can improve the high temperature and big current cycle characteristic of above-mentioned positive electrode.
The present invention also provides a kind of preparation method of above-mentioned positive electrode, comprises the steps:
A), adopt the liquid-phase mixing method, manganese source compound, nickel source compound and titanium source compound are mixed in proportion, obtain mixed solution;
B), said mixed solution is carried out spray drying treatment, obtain first mixture;
C), said first mixture is heat-treated, obtain NiTi Mn oxide precursor;
D), said NiTi Mn oxide precursor and Li source compound are mixed and grind, obtain second mixture;
E), said second mixture is heat-treated, obtain positive electrode.
Among the above-mentioned preparation method provided by the invention, step a), step b) and step c) are the operations of preparation NiTi Mn oxide precursor.For each raw material is fully mixed, the present invention at first adopts the liquid-phase mixing method, manganese source compound, nickel source compound and titanium source compound is mixed in proportion, thereby each element is mixed on molecular level, has guaranteed the high-purity of product.
For the mode of liquid-phase mixing, the present invention preferably is solvent with the deionized water, is raw material with water-soluble titanium source compound, water-soluble nickel source compound and water-soluble manganese source compound, and above-mentioned raw materials is soluble in water, obtains mixed solution.Preferably, in the above-mentioned raw materials, the mol ratio of nickel, titanium and manganese is 0.5: 0.05～0.2: 1.3～1.45.
Li source compound preferably adopts lithium acetate; Lithium nitrate, lithium hydroxide or lithium carbonate; Water-soluble nickel source compound preferably adopts nickel acetate, nickel nitrate, nickel chloride or nickelous sulfate; Water-soluble manganese source compound preferably adopts manganese acetate, manganese nitrate, manganese chloride or manganese sulfate, and the water-soluble titanium source compound preferably adopts titanium dioxide.
Obtain containing the mixed solution of NiTi Mn oxide precursor after the liquid-phase mixing, adopt spray drying that mixed solution is handled and just obtain precursor powder (first mixture).
Spray drying is the dry method of liquid material that in the hothouse thermal current, makes atomisation.The powder that mixed solution is carried out obtaining after the spray drying treatment has higher degree, with respect to traditional solution crystal process, spray drying process need not again to product wash, reprocessing such as drying, the operating process of simplification.And the dry run of spraying drying method is very fast, is suitable for industry and quantizes to produce.The present invention can adopt air-blast atomization seasoning, pressure type atomization drying method or rotation type atomization seasoning, and the present invention does not have special restriction to this.
The precursor powder that makes is according to the method described above heat-treated, and obtains NiTi Mn oxide precursor.Heat treated temperature is preferably 700～1000 ℃, and heat treatment time is preferably 10～48 hours.More preferably, heat treated temperature is 900 ℃, and heat treatment time is preferably 20 hours.
The NiTi Mn oxide precursor that obtains with the Li source compound mixing and grind, is obtained second mixture, then this second mixture is heat-treated, obtain positive electrode.In this step, the mol ratio of NiTi Mn oxide precursor and Li source compound is 0.95～1: 1～1.1, and preferred mol ratio is 1: 1.In this step, heat treated temperature is preferably 500～800 ℃, and heat treatment time is preferably, 10～48 hours.More preferably, heat treated temperature is 700 ℃, and heat treatment time is preferably 24 hours.
The present invention also provides a kind of lithium battery anode, comprises matrix and the coating material that places matrix surface, and wherein coating material comprises: above-mentioned positive electrode, electric conducting material and bonding agent.
Matrix can adopt material well known to those skilled in the art in the above-mentioned positive pole, like aluminium foil.Electric conducting material is preferably conductive black super P in the coating material, and bonding agent can be polytetrafluoroethylene, polyvinylidene chloride, polyvinyl chloride, polymethyl methacrylate or butadiene-styrene rubber.
Anode provided by the invention can adopt following method preparation:
Process positive plate on the matrix with being dissolved in N-methyl pyrrolidone (NMP) and being pressed in after above-mentioned positive electrode, electric conducting material, the binding agent mixing.
Accordingly, the present invention also provides a kind of lithium battery, and it comprises above-mentioned positive pole, negative pole, is arranged on barrier film and electrolyte between positive pole and the negative pole.
Positive pole provided by the invention and lithium battery preferably adopt above-mentioned positive electrode, because the raw material of above-mentioned positive electrode is comparatively cheap and difficult environment are polluted, and therefore the lithium battery by its preparation has the lower cost and the higher feature of environmental protection.
In order further to understand the present invention, positive electrode provided by the invention and preparation method thereof is described below in conjunction with Fig. 1 and embodiment.Protection scope of the present invention is not limited by the following examples.
Embodiment 1
1, with Ni: the mol ratio of Ti: Mn is 0.5: 0.05: 1.45 weighing nickel acetate, and titanium dioxide and manganese acetate mix the back and add the mixed solution that deionized water is made into 0.5mol/L;
2, mixed solution in the step 1 is obtained first mixture with the spray dryer drying;
3, with first mixture in the step 2 in air atmosphere with 900 ℃ of calcining at constant temperature 20h, behind the natural cooling, obtain NiTi Mn oxide precursor Ni
0.5Ti
0.05Mn
1.45O
4
4, be to mix at 1: 1 in molar ratio with nickel-iron-manganese oxide precursor in the step 3 and lithium hydroxide, grind, obtain second mixture;
5, with second mixture in the step 4 in air atmosphere with 700 ℃ of constant temperature sintering 24h, obtaining general formula is LiNi
0.5Ti
0.05Mn
1.45O
4Positive electrode.
Embodiment 2
1, with Ni: the mol ratio of Ti: Mn is 0.5: 0.1: 1.4 weighing nickel acetate, and titanium dioxide and manganese acetate mix the back and add the mixed solution that deionized water is made into 0.5mol/L;
2, the mixed solution in the step 1 is obtained first mixture with the spray dryer drying;
3, with first mixture in the step 2 in air atmosphere with 900 ℃ of calcining at constant temperature 20h, behind the natural cooling, obtain NiTi Mn oxide precursor Ni
0.5Ti
0.1Mn
1.4O
4
4, be to mix at 1: 1 in molar ratio with nickel-iron-manganese oxide precursor in the step 3 and lithium hydroxide, grind, obtain second mixture;
5, with second mixture in the step 4 in air atmosphere with 700 ℃ of constant temperature sintering 24h, obtaining general formula is LiNi
0.5Ti
0.1Mn
1.4O
4Positive electrode.
Embodiment 3
1, with Ni: the mol ratio of Ti: Mn is 0.5: 0.15: 1.35 weighing nickel acetate, and titanium dioxide and manganese acetate mix the back and add the mixed solution that deionized water is made into 0.5mol/L;
2, mixed solution in the step 1 is obtained first mixture with the spray dryer drying;
3, with first mixture in the step 2 in air atmosphere with 900 ℃ of calcining at constant temperature 20h, behind the natural cooling, obtain NiTi Mn oxide precursor Ni
0.5Ti
0.15Mn
1.35O
4
4, be to mix at 1: 1 in molar ratio with nickel-iron-manganese oxide precursor in the step 3 and lithium hydroxide, grind, obtain second mixture;
5, with second mixture in the step 4 in air atmosphere with 700 ℃ of constant temperature sintering 24h, obtaining general formula is LiNi
0.5Ti
0.15Mn
1.35O
4Positive electrode.
Embodiment 4
1, with Ni: the mol ratio of Ti: Mn is 0.5: 0.2: 1.3 weighing nickel acetate, and titanium dioxide and manganese acetate mix the back and add the mixed solution that deionized water is made into 0.5mol/L;
2, mixed solution in the step 1 is obtained first mixture with the spray dryer drying;
3, with first mixture in the step 2 in air atmosphere with 900 ℃ of calcining at constant temperature 20h, behind the natural cooling, obtain NiTi Mn oxide precursor Ni
0.5Ti
0.2Mn
1.3O
4
4, be to mix at 1: 1 in molar ratio with nickel-iron-manganese oxide precursor in the step 3 and lithium hydroxide, grind, obtain second mixture;
5, with second mixture in the step 4 in air atmosphere with 700 ℃ of constant temperature sintering 24h, obtaining general formula is LiNi
0.5Ti
0.2Mn
1.3O
4Positive electrode.
Can know by Fig. 2, in embodiment 1-4,, in their X ray diffracting spectrum, all not see the existence of impurity peaks, show very high purity according to the positive electrode that above-mentioned preparation method obtained.
Use the positive electrode of embodiment 1～4 preparation respectively, process positive plate according to following method, and utilize this positive plate to process CR2016 type button Experimental cell:
1, with positive electrode and conductive black super P and binding agent PVDF by 8: 1: 1 mixed, be dissolved in the N-methyl pyrrolidone (NMP), the back oven dry that stirs, pulverize, be pressed in aluminium and process positive plate on the net;
2, the positive plate that step 1 is made descends dry 5h at 130 ℃ in vacuum drying oven; Negative pole, polypropylene diaphragm and the electrolyte of dried positive plate, metal lithium sheet preparation are assembled in being full of the glove box of high-purity argon gas, obtained CR2016 type button Experimental cell.
Wherein, in the step 2 in the electrolyte supporting electrolyte be LiPF
6, solvent is an ethylene carbonate (EC) with diethyl carbonate (DEC) is to mix at 1: 1 by volume, the concentration of electrolyte is 1mol/L.
Comparative example
The preparation method of positive electrode:
1, with Ni: the mol ratio of Mn is 0.5: 1.5 weighing nickel acetate and manganese acetate, mixes the back and adds the mixed solution that deionized water is made into 0.5mol/L;
2, the mixed solution in the step 1 is obtained first mixture with the spray dryer drying;
3, with first mixture in the step 2 in air atmosphere with 900 ℃ of calcining at constant temperature 20h, behind the natural cooling, obtain Ni, Mn oxide precursor Ni
0.5Mn
1.5O
4
4, be to mix at 1: 1 in molar ratio with Ni, Mn oxide precursor in the step 3 and lithium hydroxide, grind, obtain second mixture;
5, with second mixture in the step 4 in air atmosphere with 700 ℃ of constant temperature sintering 24h, obtaining general formula is LiNi
0.5Mn
1.5O
4Positive electrode.
By above-mentioned positive electrode LiNi
0.5Mn
1.5O
4The method for preparing battery:
1, with the positive electrode LiNi of above-mentioned preparation
0.5Mn
1.5O
4Press 8: 1: 1 mixed with conductive black super P, binding agent PVDF, be dissolved in the N-methyl pyrrolidone (NMP), stir back oven dry, pulverizing are pressed in aluminium and process positive plate on the net;
2, the positive plate that makes in the step 1 is descended dry 5h at 130 ℃ in vacuum drying oven; With dried positive plate, in being full of the glove box of high-purity argon gas, assemble, obtain CR2016 type button Experimental cell with negative pole, polypropylene diaphragm and the electrolyte of metal lithium sheet preparation.
Wherein, in the step 2 in the electrolyte supporting electrolyte be LiPF
6, solvent is an ethylene carbonate (EC) with diethyl carbonate (DEC) is to mix at 1: 1 by volume, the concentration of electrolyte is 1mol/L.
Experimental cell to obtaining in the CR2016 type button Experimental cell processed by the positive electrode of embodiment 1～embodiment 4 preparation and the comparative example carries out charge-discharge test; Wherein, Charging current is 20 milliamperes of every grams (0.1C); Discharging current is 600 milliamperes of every grams (3C), and the charging/discharging voltage interval is at 3～4.9V, and probe temperature is a room temperature.
Referring to shown in Figure 3, be the cycle characteristics curve of the battery processed by the positive electrode of embodiment 1～4 and comparative example preparation.As can beappreciated from fig. 3, the battery that obtains through comparative example can not show comparatively stable cycle characteristics under the big electric current of normal temperature, and its capacity attenuation still is apparent in view.After 40 circulations, its specific capacity drops to the every gram of about 82 Milliampere Hours from the initial every gram of 94 Milliampere Hours, and capability retention is about 87.2%.And the Experimental cell of processing through the positive electrode that embodiment 1-4 obtains, they are after through 40 circulations, and its specific capacity is respectively 117; 136; The every gram of 132 and 128 Milliampere Hours, capability retention is respectively 92.8%, 98.5%; 98.5% and 96.2, improve significantly with respect to the battery in the comparative example.
In sum; Utilize Ti element comparatively cheap, environmental protection to replace the Mn in the nickel manganate cathode material for lithium, not only help to drop to the cost of material, obtain highly purified sample; Can also improve the multiplying power property of positive electrode effectively, so this system material is a kind of novel high-performance positive electrode.
The explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof.Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention, can also carry out some improvement and modification to the present invention, these improvement and modification also fall in the protection range of claim of the present invention.
To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the present invention.Multiple modification to these embodiment will be conspicuous concerning those skilled in the art, and defined General Principle can realize under the situation that does not break away from the spirit or scope of the present invention in other embodiments among this paper.Therefore, the present invention will can not be restricted to these embodiment shown in this paper, but will meet and principle disclosed herein and features of novelty the wideest corresponding to scope.
Claims (13)
1. a positive electrode that is used for lithium battery is characterized in that, said positive electrode is by general formula LiNi
0.5Ti
xMn
1.5-xO
4Expression, in this general formula, 0＜x≤0.5.
2. positive electrode according to claim 1 is characterized in that, in the said general formula, and 0.1≤x≤0.2.
3. positive electrode according to claim 2 is characterized in that, in the said general formula, the x value is 0.1 or 0.15.
4. the preparation method of a positive electrode as claimed in claim 1 is characterized in that, comprises the steps:
A), adopt the liquid-phase mixing method, manganese source compound, nickel source compound and titanium source compound are mixed in proportion, obtain mixed solution;
B), said mixed solution is carried out spray drying treatment, obtain first mixture;
C), said first mixture is heat-treated, obtain NiTi Mn oxide precursor;
D), said NiTi Mn oxide precursor and Li source compound are mixed and grind, obtain second mixture;
E), said second mixture is heat-treated, obtain positive electrode.
5. the preparation method of positive electrode according to claim 4 is characterized in that, the mol ratio of nickel, titanium and manganese is 0.5: 0.05～0.2: 1.3～1.45 in the said step a).
6. the preparation method of positive electrode according to claim 5 is characterized in that, the mol ratio of NiTi Mn oxide precursor and Li source compound is 0.95～1: 1～1.1 in the said step d).
7. according to the preparation method of any described positive electrode of claim 4 to 6, it is characterized in that heat treated temperature is 700～1000 ℃ in the said step c).
8. the preparation method of positive electrode according to claim 7 is characterized in that, heat treatment period is 10～48h in the said step c).
9. according to the preparation method of any described positive electrode of claim 4 to 6, it is characterized in that heat treated temperature is 500～800 ℃ in the said step e).
10. the preparation method of positive electrode according to claim 9 is characterized in that, heat treatment period is 10～48h in the said step e).
11. preparation method according to any described positive electrode of claim 4 to 6; It is characterized in that said manganese source compound is a manganese acetate, said nickel source compound is a nickel acetate; Said titanium source compound is a titanium dioxide, and said Li source compound is a lithium hydroxide.
12. a lithium battery anode is characterized in that, comprises matrix and the coating material that places matrix surface, said coating material comprises claim 1 or 2 or 3 described positive electrodes, electric conducting material and binding agent.
13. a lithium battery is characterized in that, comprising: the described lithium battery anode of claim 12, negative pole, be arranged on barrier film and electrolyte between positive pole and the negative pole.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107230773A (en) * | 2017-05-05 | 2017-10-03 | 个旧圣比和实业有限公司 | Positive electrode for lithium battery and preparation method thereof, lithium battery anode and lithium battery |
| WO2023230832A1 (en) * | 2022-05-31 | 2023-12-07 | 宁德时代新能源科技股份有限公司 | Lithium nickel manganate positive electrode active material, and preparation method for same and secondary battery using same |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000156229A (en) * | 1998-11-20 | 2000-06-06 | Yuasa Corp | Nonaqueous electrolyte lithium secondary battery |
| US6337158B1 (en) * | 1998-12-18 | 2002-01-08 | Sanyo Electric Co., Ltd. | Lithium secondary battery |
| CN101369651A (en) * | 2008-09-27 | 2009-02-18 | 浙江华友钴业股份有限公司 | Novel method for preparing lithium ion battery anode ternary material LiCoxNiyMn2O2 |
-
2011
- 2011-11-28 CN CN2011103849967A patent/CN102420320A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000156229A (en) * | 1998-11-20 | 2000-06-06 | Yuasa Corp | Nonaqueous electrolyte lithium secondary battery |
| US6337158B1 (en) * | 1998-12-18 | 2002-01-08 | Sanyo Electric Co., Ltd. | Lithium secondary battery |
| CN101369651A (en) * | 2008-09-27 | 2009-02-18 | 浙江华友钴业股份有限公司 | Novel method for preparing lithium ion battery anode ternary material LiCoxNiyMn2O2 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107230773A (en) * | 2017-05-05 | 2017-10-03 | 个旧圣比和实业有限公司 | Positive electrode for lithium battery and preparation method thereof, lithium battery anode and lithium battery |
| WO2023230832A1 (en) * | 2022-05-31 | 2023-12-07 | 宁德时代新能源科技股份有限公司 | Lithium nickel manganate positive electrode active material, and preparation method for same and secondary battery using same |
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Application publication date: 20120418 |