CN109768273A - A kind of anode material of lithium battery and preparation method thereof - Google Patents
A kind of anode material of lithium battery and preparation method thereof Download PDFInfo
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- CN109768273A CN109768273A CN201811541971.1A CN201811541971A CN109768273A CN 109768273 A CN109768273 A CN 109768273A CN 201811541971 A CN201811541971 A CN 201811541971A CN 109768273 A CN109768273 A CN 109768273A
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- 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
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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- Y02E60/10—Energy storage using batteries
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Abstract
The present invention relates to technical field of lithium batteries, specifically a kind of anode material of lithium battery is characterized in that: including below according to the raw material of parts by weight: 20-30 parts of nickel cobalt manganese presoma, 22-35 parts of lithium source, 80-100 parts of water;Wherein, the nickel cobalt manganese presoma is one of nickel hydroxide, cobalt hydroxide, manganous hydroxide or a variety of, and the lithium source is lithium carbonate.The invention also discloses the preparation methods of the anode material of lithium battery.Anode material of lithium battery prepared by the present invention has tap density high, and the small advantage of specific surface area, excellent material performance can satisfy the market demand, have a vast market foreground.
Description
Technical field
The present invention relates to technical field of lithium batteries, specifically a kind of anode material of lithium battery and preparation method thereof.
Background technique
Lithium ion battery is the new generation of green high-energy battery of performance brilliance, it has also become the emphasis of hi-tech development it
One.Lithium ion battery has the following characteristics that high voltage, high capacity, low consumption, memory-less effect, nuisanceless, small in size, internal resistance
It is small, self discharge is few, cycle-index is more.Because of its These characteristics, lithium ion battery has application to mobile phone, laptop, takes the photograph
Camera, digital camera etc. be numerous civilian and military field.The main composition material of lithium ion battery includes electrolyte, isolation material
Material, positive and negative pole material etc..
Positive electrode occupies larger proportion, because the performance of positive electrode directly affects the performance of lithium ion battery,
Cost also directly determines battery cost height.In consideration of it, the invention proposes a kind of anode material of lithium battery and preparation method thereof.
Summary of the invention
The purpose of the present invention is to provide a kind of anode material of lithium battery, to solve mentioned above in the background art ask
Topic.
To achieve the above object, the invention provides the following technical scheme:
A kind of anode material of lithium battery, including below according to the raw material of parts by weight: 20-30 parts of nickel cobalt manganese presoma, lithium source
22-35 parts, 80-100 parts of water.
As a further solution of the present invention: including below according to the raw material of parts by weight: 23-28 parts of nickel cobalt manganese presoma,
26-32 parts of lithium source, 84-96 parts of water.
As further scheme of the invention: including below according to the raw material of parts by weight: 25 parts of nickel cobalt manganese presoma, lithium
28 parts of source, 90 parts of water.
As further scheme of the invention: the nickel cobalt manganese presoma is nickel hydroxide, cobalt hydroxide, manganous hydroxide
One of or it is a variety of.
As further scheme of the invention: the lithium source is lithium carbonate.
The preparation method of the anode material of lithium battery, steps are as follows:
1) nickel cobalt manganese presoma, lithium source and water are successively taken according to parts by weight, and is added in high-speed mixer and mixes, and obtain object
Expect A;
2) material A is transferred to ball milling in ball mill, ratio of grinding media to material 8:1, the powder after ball milling is dry, obtains material B;
3) material B is calcined into 10h in oxygen-containing atmosphere, calcination temperature is 950-970 DEG C, obtains material C;
4) it by after material C cooling, is crushed, crosses 200 meshes to get the anode material of lithium battery.
As further scheme of the invention: in step 1), the revolving speed of the high-speed mixer is 800r/min, mixing
Time is 20min.
As further scheme of the invention: in step 2), the Ball-milling Time is 3-4h, revolving speed 500r/min.
The anode material of lithium battery is preparing the purposes in lithium battery.
Compared with prior art, the beneficial effects of the present invention are:
Anode material of lithium battery prepared by the present invention is high with tap density, the small advantage of specific surface area, and material property is excellent
It is different, it can satisfy the market demand, have a vast market foreground.
Specific embodiment
The technical solution of the patent is explained in further detail With reference to embodiment.
Embodiment 1
A kind of anode material of lithium battery, including below according to the raw material of parts by weight: 20 parts of nickel cobalt manganese presoma, lithium source 22
Part, 80 parts of water.
Wherein, the nickel cobalt manganese presoma is nickel hydroxide, and the lithium source is lithium carbonate.
In the present embodiment, the preparation method of the anode material of lithium battery, steps are as follows:
1) nickel cobalt manganese presoma, lithium source and water are successively taken according to parts by weight, and is added in high-speed mixer and mixes, and obtain object
Expect A;
2) material A is transferred to ball milling in ball mill, ratio of grinding media to material 8:1, the powder after ball milling is dry, obtains material B;
3) material B is calcined into 10h in oxygen-containing atmosphere, calcination temperature is 950 DEG C, obtains material C;
4) it by after material C cooling, is crushed, crosses 200 meshes to get the anode material of lithium battery.
Wherein, in step 1), the revolving speed of the high-speed mixer is 800r/min, incorporation time 20min;Step 2)
In, the Ball-milling Time is 3h, revolving speed 500r/min.
Embodiment 2
A kind of anode material of lithium battery, including below according to the raw material of parts by weight: 23 parts of nickel cobalt manganese presoma, lithium source 26
Part, 84 parts of water.
Wherein, the nickel cobalt manganese presoma is cobalt hydroxide, and the lithium source is lithium carbonate.
In the present embodiment, the preparation method of the anode material of lithium battery, steps are as follows:
1) nickel cobalt manganese presoma, lithium source and water are successively taken according to parts by weight, and is added in high-speed mixer and mixes, and obtain object
Expect A;
2) material A is transferred to ball milling in ball mill, ratio of grinding media to material 8:1, the powder after ball milling is dry, obtains material B;
3) material B is calcined into 10h in oxygen-containing atmosphere, calcination temperature is 955 DEG C, obtains material C;
4) it by after material C cooling, is crushed, crosses 200 meshes to get the anode material of lithium battery.
Wherein, in step 1), the revolving speed of the high-speed mixer is 800r/min, incorporation time 20min;Step 2)
In, the Ball-milling Time is 3.2h, revolving speed 500r/min.
Embodiment 3
A kind of anode material of lithium battery, including below according to the raw material of parts by weight: 25 parts of nickel cobalt manganese presoma, lithium source 28
Part, 90 parts of water.
Wherein, the nickel cobalt manganese presoma is the composition of nickel hydroxide, cobalt hydroxide and manganous hydroxide, and hydroxide
The ratio of nickel, cobalt hydroxide and manganous hydroxide is 1:1:1, and the lithium source is lithium carbonate.
In the present embodiment, the preparation method of the anode material of lithium battery, steps are as follows:
1) nickel cobalt manganese presoma, lithium source and water are successively taken according to parts by weight, and is added in high-speed mixer and mixes, and obtain object
Expect A;
2) material A is transferred to ball milling in ball mill, ratio of grinding media to material 8:1, the powder after ball milling is dry, obtains material B;
3) material B is calcined into 10h in oxygen-containing atmosphere, calcination temperature is 960 DEG C, obtains material C;
4) it by after material C cooling, is crushed, crosses 200 meshes to get the anode material of lithium battery.
Wherein, in step 1), the revolving speed of the high-speed mixer is 800r/min, incorporation time 20min;Step 2)
In, the Ball-milling Time is 3.5h, revolving speed 500r/min.
Embodiment 4
A kind of anode material of lithium battery, including below according to the raw material of parts by weight: 28 parts of nickel cobalt manganese presoma, lithium source 32
Part, 96 parts of water.
Wherein, the nickel cobalt manganese presoma is manganous hydroxide, and the lithium source is lithium carbonate.
In the present embodiment, the preparation method of the anode material of lithium battery, steps are as follows:
1) nickel cobalt manganese presoma, lithium source and water are successively taken according to parts by weight, and is added in high-speed mixer and mixes, and obtain object
Expect A;
2) material A is transferred to ball milling in ball mill, ratio of grinding media to material 8:1, the powder after ball milling is dry, obtains material B;
3) material B is calcined into 10h in oxygen-containing atmosphere, calcination temperature is 965 DEG C, obtains material C;
4) it by after material C cooling, is crushed, crosses 200 meshes to get the anode material of lithium battery.
Wherein, in step 1), the revolving speed of the high-speed mixer is 800r/min, incorporation time 20min;Step 2)
In, the Ball-milling Time is 3.8h, revolving speed 500r/min.
Embodiment 5
A kind of anode material of lithium battery, including below according to the raw material of parts by weight: 30 parts of nickel cobalt manganese presoma, lithium source 35
Part, 100 parts of water.
Wherein, the nickel cobalt manganese presoma is the composition of nickel hydroxide and cobalt hydroxide, and nickel hydroxide and hydroxide
The ratio of cobalt is 1:1, and the lithium source is lithium carbonate.
In the present embodiment, the preparation method of the anode material of lithium battery, steps are as follows:
1) nickel cobalt manganese presoma, lithium source and water are successively taken according to parts by weight, and is added in high-speed mixer and mixes, and obtain object
Expect A;
2) material A is transferred to ball milling in ball mill, ratio of grinding media to material 8:1, the powder after ball milling is dry, obtains material B;
3) material B is calcined into 10h in oxygen-containing atmosphere, calcination temperature is 970 DEG C, obtains material C;
4) it by after material C cooling, is crushed, crosses 200 meshes to get the anode material of lithium battery.
Wherein, in step 1), the revolving speed of the high-speed mixer is 800r/min, incorporation time 20min;Step 2)
In, the Ball-milling Time is 4h, revolving speed 500r/min.
Comparative example 1
General anode material of lithium battery currently on the market.
Vibration is passed through to anode material of lithium battery described in anode material of lithium battery prepared by embodiment 1-5 and comparative example 1
Real density tester and specific surface area analysis instrument are tested to obtain tap density and specific surface area, and test result is as shown in table 1.
1 test result table of table
Group | Tap density (g/m3) | Specific surface area (m2/g) |
Embodiment 1 | 2.35 | 0.52 |
Embodiment 2 | 2.33 | 0.53 |
Embodiment 3 | 2.37 | 0.51 |
Embodiment 4 | 2.34 | 0.54 |
Embodiment 5 | 2.33 | 0.53 |
Comparative example 1 | 2.02 | 0.72 |
As can be seen that anode material of lithium battery prepared by the present invention is relative to lithium described in comparative example 1 from result above
Cell positive material tap density is high, and specific surface area is small, and material property gets a promotion, and can satisfy the market demand, has wide
Market prospects.
The preferred embodiment of the patent is described in detail above, but this patent is not limited to above-mentioned embodiment party
Formula within the knowledge of one of ordinary skill in the art can also be under the premise of not departing from this patent objective
It makes a variety of changes.
Claims (9)
1. a kind of anode material of lithium battery, which is characterized in that including below according to the raw material of parts by weight: nickel cobalt manganese presoma 20-
30 parts, 22-35 parts of lithium source, 80-100 parts of water.
2. anode material of lithium battery according to claim 1, which is characterized in that including below according to the raw material of parts by weight:
23-28 parts of nickel cobalt manganese presoma, 26-32 parts of lithium source, 84-96 parts of water.
3. anode material of lithium battery according to claim 2, which is characterized in that including below according to the raw material of parts by weight:
25 parts of nickel cobalt manganese presoma, 28 parts of lithium source, 90 parts of water.
4. anode material of lithium battery according to claim 1 to 3, which is characterized in that the nickel cobalt manganese presoma is hydrogen
One of nickel oxide, cobalt hydroxide, manganous hydroxide are a variety of.
5. anode material of lithium battery according to claim 1 to 3, which is characterized in that the lithium source is lithium carbonate.
6. a kind of preparation method of anode material of lithium battery a method according to any one of claims 1-3, which is characterized in that step is such as
Under:
1) nickel cobalt manganese presoma, lithium source and water are successively taken according to parts by weight, and is added in high-speed mixer and mixes, and obtain material A;
2) material A is transferred to ball milling in ball mill, ratio of grinding media to material 8:1, the powder after ball milling is dry, obtains material B;
3) material B is calcined into 10h in oxygen-containing atmosphere, calcination temperature is 950-970 DEG C, obtains material C;
4) it by after material C cooling, is crushed, crosses 200 meshes to get the anode material of lithium battery.
7. the preparation method of anode material of lithium battery according to claim 6, which is characterized in that in step 1), the height
The revolving speed of fast mixing machine is 800r/min, incorporation time 20min.
8. the preparation method of anode material of lithium battery according to claim 6, which is characterized in that in step 2, the ball
Time consuming is 3-4h, revolving speed 500r/min.
9. anode material of lithium battery a method according to any one of claims 1-3 is preparing the purposes in lithium battery.
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CN101478044A (en) * | 2009-01-07 | 2009-07-08 | 厦门钨业股份有限公司 | Multi-element composite positive pole material for lithium secondary battery and preparation thereof |
US20170084919A1 (en) * | 2014-05-27 | 2017-03-23 | Dow Global Technologies Llc | Improved lithium metal oxide cathode materials and method to make them |
CN108123132A (en) * | 2017-12-25 | 2018-06-05 | 北方奥钛纳米技术有限公司 | Anode material of lithium battery and preparation method thereof, lithium battery anode and lithium battery |
CN108666563A (en) * | 2018-05-24 | 2018-10-16 | 北方奥钛纳米技术有限公司 | A kind of preparation method of nickel-cobalt lithium manganate cathode material |
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- 2018-12-17 CN CN201811541971.1A patent/CN109768273A/en active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101478044A (en) * | 2009-01-07 | 2009-07-08 | 厦门钨业股份有限公司 | Multi-element composite positive pole material for lithium secondary battery and preparation thereof |
US20170084919A1 (en) * | 2014-05-27 | 2017-03-23 | Dow Global Technologies Llc | Improved lithium metal oxide cathode materials and method to make them |
CN108123132A (en) * | 2017-12-25 | 2018-06-05 | 北方奥钛纳米技术有限公司 | Anode material of lithium battery and preparation method thereof, lithium battery anode and lithium battery |
CN108666563A (en) * | 2018-05-24 | 2018-10-16 | 北方奥钛纳米技术有限公司 | A kind of preparation method of nickel-cobalt lithium manganate cathode material |
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