CN109786686A - A kind of lithium cell cathode material and preparation method thereof, cathode of lithium battery and lithium battery - Google Patents
A kind of lithium cell cathode material and preparation method thereof, cathode of lithium battery and lithium battery Download PDFInfo
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- CN109786686A CN109786686A CN201811542797.2A CN201811542797A CN109786686A CN 109786686 A CN109786686 A CN 109786686A CN 201811542797 A CN201811542797 A CN 201811542797A CN 109786686 A CN109786686 A CN 109786686A
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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
- 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 present invention relates to technical field of lithium batteries, specifically a kind of lithium cell cathode material, is characterized in that: including below according to the raw material of parts by weight: 10-20 parts of copper, 10-25 parts of silicon, 5-10 parts of aluminium, 1-2 parts of titanium, 2-5 parts of iron, 1-3 parts of nickel, 2-4 parts of cobalt, 3-5 parts of manganese, 5-8 parts of carbon, 4-6 parts of acetylene black, 4-6 parts of binder.The invention also discloses the preparation methods of the lithium cell cathode material.Lithium cell cathode material tap density prepared by the present invention is high, and specific surface area is small, and material property is good, can satisfy the market demand, has a vast market foreground.
Description
Technical field
The present invention relates to technical field of lithium batteries, specifically a kind of lithium cell cathode material and preparation method thereof, lithium battery
Cathode and lithium battery.
Background technique
Cathode refers to current potential in power supply (potential) lower one end.In primary battery, the electrode of oxidation, battery are referred to
The left side is write in reaction.It is the pole that electronics flows out in circuit from the point of view of physical angle.And negative electrode material, then refer in battery
The raw material of cathode is constituted, negative electrode material common at present has carbon negative pole material, tin base cathode material, lithium-containing transition metal nitride
Negative electrode material, alloy type negative material and nanoscale negative electrode material.
As the demand of mobile electronic equipment is increasing, the demand of lithium battery is also increasing, it is seen then that is mentioned
It is particularly important for preparing lithium battery for a kind of good lithium cell cathode material of performance.
Summary of the invention
The purpose of the present invention is to provide a kind of lithium cell cathode material and preparation method thereof, cathode of lithium battery and lithium electricity
Pond, to solve the problems mentioned in the above background technology.
To achieve the above object, the invention provides the following technical scheme:
A kind of lithium cell cathode material, including below according to the raw material of parts by weight: 10-20 parts of copper, 10-25 parts of silicon, aluminium 5-
10 parts, 1-2 parts of titanium, 2-5 parts of iron, 1-3 parts of nickel, 2-4 parts of cobalt, 3-5 parts of manganese, 5-8 parts of carbon, 4-6 parts of acetylene black, 4-6 parts of binder.
As a further solution of the present invention: including below according to the raw material of parts by weight: 12-18 parts of copper, 10-20 parts of silicon,
7-10 parts of aluminium, 1-2 parts of titanium, 3-5 parts of iron, 1-2 parts of nickel, 2-3 parts of cobalt, 3-4 parts of manganese, 5-7 parts of carbon, 5-6 parts of acetylene black, binder 4-
5 parts.
As further scheme of the invention: including below according to the raw material of parts by weight: 15 parts of copper, 18 parts of silicon, aluminium 8
Part, 1 part of titanium, 4 parts of iron, 2 parts of nickel, 2 parts of cobalt, 3 parts of manganese, 6 parts of carbon, 5 parts of acetylene black, 5 parts of binder.
As the present invention further scheme: the binder be one of butadiene-styrene rubber, carboxymethyl cellulose or
Two kinds.
The preparation method of the lithium cell cathode material, steps are as follows:
1) copper, silicon, aluminium, titanium, iron, nickel, cobalt, manganese, carbon, acetylene black and binder are successively taken according to parts by weight, it is spare；
2) copper taken in step 1), silicon, aluminium, titanium, iron, nickel, cobalt, manganese, carbon and acetylene black are added to de-airing mixer
In, it is uniformly mixed, obtains material A；
3) water of its 1.2 times of weight is added into material A, adds binder, continuation mixes in de-airing mixer, i.e.,
Obtain the lithium cell cathode material.
As further scheme of the invention: in step 2), the stirring rate of the de-airing mixer is 20-30r/
Min, mixing time 80-100min, whipping temp are 30 DEG C.
As further scheme of the invention: in step 3), the stirring rate of the de-airing mixer is 1700-
1800r/min, mixing time 60-70min, whipping temp are 30 DEG C.
A kind of cathode of lithium battery based on the lithium cell cathode material.
A kind of lithium battery, including the cathode of lithium battery.
The lithium cell cathode material is preparing the purposes in lithium battery product.
Compared with prior art, the beneficial effects of the present invention are:
Lithium cell cathode material tap density prepared by the present invention is high, and specific surface area is small, and material property is good, can satisfy city
Field demand, has 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 lithium cell cathode material, including below according to the raw material of parts by weight: 10 parts of copper, 10 parts of silicon, 5 parts of aluminium, titanium 1
Part, 2 parts of iron, 1 part of nickel, 2 parts of cobalt, 3 parts of manganese, 5 parts of carbon, 4 parts of acetylene black, 4 parts of binder.
Wherein, the binder is butadiene-styrene rubber.
In the present embodiment, the preparation method of the lithium cell cathode material, steps are as follows:
1) copper, silicon, aluminium, titanium, iron, nickel, cobalt, manganese, carbon, acetylene black and binder are successively taken according to parts by weight, it is spare；
2) copper taken in step 1), silicon, aluminium, titanium, iron, nickel, cobalt, manganese, carbon and acetylene black are added to de-airing mixer
In, it is uniformly mixed, obtains material A；
3) water of its 1.2 times of weight is added into material A, adds binder, continuation mixes in de-airing mixer, i.e.,
Obtain the lithium cell cathode material.
Wherein, in step 2), the stirring rate of the de-airing mixer is 20r/min, mixing time 80min, stirring
Temperature is 30 DEG C；In step 3), the stirring rate of the de-airing mixer is 1700r/min, mixing time 60min, stirring
Temperature is 30 DEG C.
A kind of cathode of lithium battery based on the lithium cell cathode material.
A kind of lithium battery, including the cathode of lithium battery.
The lithium cell cathode material is preparing the purposes in lithium battery product.
Embodiment 2
A kind of lithium cell cathode material, including below according to the raw material of parts by weight: 12 parts of copper, 10 parts of silicon, 7 parts of aluminium, titanium 1
Part, 3 parts of iron, 1 part of nickel, 2 parts of cobalt, 3 parts of manganese, 5 parts of carbon, 5 parts of acetylene black, 4 parts of binder.
Wherein, the binder is carboxymethyl cellulose.
In the present embodiment, the preparation method of the lithium cell cathode material, steps are as follows:
1) copper, silicon, aluminium, titanium, iron, nickel, cobalt, manganese, carbon, acetylene black and binder are successively taken according to parts by weight, it is spare；
2) copper taken in step 1), silicon, aluminium, titanium, iron, nickel, cobalt, manganese, carbon and acetylene black are added to de-airing mixer
In, it is uniformly mixed, obtains material A；
3) water of its 1.2 times of weight is added into material A, adds binder, continuation mixes in de-airing mixer, i.e.,
Obtain the lithium cell cathode material.
Wherein, in step 2), the stirring rate of the de-airing mixer is 22r/min, mixing time 85min, stirring
Temperature is 30 DEG C；In step 3), the stirring rate of the de-airing mixer is 1720r/min, mixing time 62min, stirring
Temperature is 30 DEG C.
A kind of cathode of lithium battery based on the lithium cell cathode material.
A kind of lithium battery, including the cathode of lithium battery.
The lithium cell cathode material is preparing the purposes in lithium battery product.
Embodiment 3
A kind of lithium cell cathode material, including below according to the raw material of parts by weight: 15 parts of copper, 18 parts of silicon, 8 parts of aluminium, titanium 1
Part, 4 parts of iron, 2 parts of nickel, 2 parts of cobalt, 3 parts of manganese, 6 parts of carbon, 5 parts of acetylene black, 5 parts of binder.
Wherein, the binder is the mixture of butadiene-styrene rubber and carboxymethyl cellulose, and butadiene-styrene rubber and carboxymethyl are fine
The ratio of dimension element is 1:1.
In the present embodiment, the preparation method of the lithium cell cathode material, steps are as follows:
1) copper, silicon, aluminium, titanium, iron, nickel, cobalt, manganese, carbon, acetylene black and binder are successively taken according to parts by weight, it is spare；
2) copper taken in step 1), silicon, aluminium, titanium, iron, nickel, cobalt, manganese, carbon and acetylene black are added to de-airing mixer
In, it is uniformly mixed, obtains material A；
3) water of its 1.2 times of weight is added into material A, adds binder, continuation mixes in de-airing mixer, i.e.,
Obtain the lithium cell cathode material.
Wherein, in step 2), the stirring rate of the de-airing mixer is 25r/min, mixing time 90min, stirring
Temperature is 30 DEG C；In step 3), the stirring rate of the de-airing mixer is 1750r/min, mixing time 65min, stirring
Temperature is 30 DEG C.
A kind of cathode of lithium battery based on the lithium cell cathode material.
A kind of lithium battery, including the cathode of lithium battery.
The lithium cell cathode material is preparing the purposes in lithium battery product.
Embodiment 4
A kind of lithium cell cathode material, including below according to the raw material of parts by weight: 18 parts of copper, 20 parts of silicon, 10 parts of aluminium, titanium 2
Part, 5 parts of iron, 2 parts of nickel, 3 parts of cobalt, 4 parts of manganese, 7 parts of carbon, 6 parts of acetylene black, 5 parts of binder.
Wherein, the binder is butadiene-styrene rubber.
In the present embodiment, the preparation method of the lithium cell cathode material, steps are as follows:
1) copper, silicon, aluminium, titanium, iron, nickel, cobalt, manganese, carbon, acetylene black and binder are successively taken according to parts by weight, it is spare；
2) copper taken in step 1), silicon, aluminium, titanium, iron, nickel, cobalt, manganese, carbon and acetylene black are added to de-airing mixer
In, it is uniformly mixed, obtains material A；
3) water of its 1.2 times of weight is added into material A, adds binder, continuation mixes in de-airing mixer, i.e.,
Obtain the lithium cell cathode material.
Wherein, in step 2), the stirring rate of the de-airing mixer is 27r/min, mixing time 95min, stirring
Temperature is 30 DEG C；In step 3), the stirring rate of the de-airing mixer is 1770r/min, mixing time 68min, stirring
Temperature is 30 DEG C.
A kind of cathode of lithium battery based on the lithium cell cathode material.
A kind of lithium battery, including the cathode of lithium battery.
The lithium cell cathode material is preparing the purposes in lithium battery product.
Embodiment 5
A kind of lithium cell cathode material, including below according to the raw material of parts by weight: 20 parts of copper, 25 parts of silicon, 10 parts of aluminium, titanium 2
Part, 5 parts of iron, 3 parts of nickel, 4 parts of cobalt, 5 parts of manganese, 8 parts of carbon, 6 parts of acetylene black, 6 parts of binder.
Wherein, the binder is carboxymethyl cellulose.
In the present embodiment, the preparation method of the lithium cell cathode material, steps are as follows:
1) copper, silicon, aluminium, titanium, iron, nickel, cobalt, manganese, carbon, acetylene black and binder are successively taken according to parts by weight, it is spare；
2) copper taken in step 1), silicon, aluminium, titanium, iron, nickel, cobalt, manganese, carbon and acetylene black are added to de-airing mixer
In, it is uniformly mixed, obtains material A；
3) water of its 1.2 times of weight is added into material A, adds binder, continuation mixes in de-airing mixer, i.e.,
Obtain the lithium cell cathode material.
Wherein, in step 2), the stirring rate of the de-airing mixer is 30r/min, mixing time 100min, stirring
Temperature is 30 DEG C；In step 3), the stirring rate of the de-airing mixer is 1800r/min, mixing time 70min, stirring
Temperature is 30 DEG C.
A kind of cathode of lithium battery based on the lithium cell cathode material.
A kind of lithium battery, including the cathode of lithium battery.
The lithium cell cathode material is preparing the purposes in lithium battery product.
Comparative example 1
General lithium cell cathode material currently on the market.
Vibration is passed through to lithium cell cathode material described in lithium cell cathode material 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/cm3) | Specific surface area (cm2/g) |
| Embodiment 1 | 1.30 | 2.79 |
| Embodiment 2 | 1.31 | 2.81 |
| Embodiment 3 | 1.36 | 2.65 |
| Embodiment 4 | 1.32 | 2.75 |
| Embodiment 5 | 1.31 | 2.76 |
| Comparative example 1 | 1.12 | 3 |
As can be seen that lithium cell cathode material prepared by the present invention is relative to lithium described in comparative example 1 from result above
Cell negative electrode material tap density is high, and specific surface area is small, improves the performance of lithium cell cathode material, and can satisfy market needs
It asks, has a vast market foreground.
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 (10)
1. a kind of lithium cell cathode material, which is characterized in that including below according to the raw material of parts by weight: 10-20 parts of copper, silicon 10-
25 parts, it is 5-10 parts of aluminium, 1-2 parts of titanium, 2-5 parts of iron, 1-3 parts of nickel, 2-4 parts of cobalt, 3-5 parts of manganese, 5-8 parts of carbon, 4-6 parts of acetylene black, viscous
Agent 4-6 parts of knot.
2. lithium cell cathode material according to claim 1, which is characterized in that including below according to the raw material of parts by weight:
12-18 parts of copper, 10-20 parts of silicon, 7-10 parts of aluminium, 1-2 parts of titanium, 3-5 parts of iron, 1-2 parts of nickel, 2-3 parts of cobalt, 3-4 parts of manganese, 5-7 parts of carbon,
5-6 parts of acetylene black, 4-5 parts of binder.
3. lithium cell cathode material according to claim 2, which is characterized in that including below according to the raw material of parts by weight:
15 parts of copper, 18 parts of silicon, 8 parts of aluminium, 1 part of titanium, 4 parts of iron, 2 parts of nickel, 2 parts of cobalt, 3 parts of manganese, 6 parts of carbon, 5 parts of acetylene black, 5 parts of binder.
4. lithium cell cathode material according to claim 1 to 3, which is characterized in that the binder is butylbenzene rubber
One or both of glue, carboxymethyl cellulose.
5. a kind of preparation method of lithium cell cathode material a method according to any one of claims 1-3, which is characterized in that step is such as
Under:
1) copper, silicon, aluminium, titanium, iron, nickel, cobalt, manganese, carbon, acetylene black and binder are successively taken according to parts by weight, it is spare；
2) copper taken in step 1), silicon, aluminium, titanium, iron, nickel, cobalt, manganese, carbon and acetylene black are added in de-airing mixer, are mixed
It closes uniformly, obtains material A；
3) water of its 1.2 times of weight is added into material A, adds binder, continues to mix in de-airing mixer to get institute
State lithium cell cathode material.
6. the preparation method of lithium cell cathode material according to claim 5, which is characterized in that described true in step 2
The stirring rate of empty blender is 20-30r/min, and mixing time 80-100min, whipping temp is 30 DEG C.
7. the preparation method of lithium cell cathode material according to claim 5, which is characterized in that described true in step 3)
The stirring rate of empty blender is 1700-1800r/min, and mixing time 60-70min, whipping temp is 30 DEG C.
8. a kind of cathode of lithium battery based on lithium cell cathode material a method according to any one of claims 1-3.
9. a kind of lithium battery, which is characterized in that including cathode of lithium battery as claimed in claim 8.
10. lithium cell cathode material a method according to any one of claims 1-3 is preparing the purposes in lithium battery product.
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| CN201811542797.2A CN109786686A (en) | 2018-12-17 | 2018-12-17 | A kind of lithium cell cathode material and preparation method thereof, cathode of lithium battery and lithium battery |
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| CN201811542797.2A CN109786686A (en) | 2018-12-17 | 2018-12-17 | A kind of lithium cell cathode material and preparation method thereof, cathode of lithium battery and lithium battery |
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| CN1492524A (en) * | 2003-09-10 | 2004-04-28 | 武汉大学 | Silicon alloy and carbon base material composition and its preparing method and use |
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| CN107658427A (en) * | 2017-10-13 | 2018-02-02 | 江苏海四达电源股份有限公司 | A kind of lithium cell cathode material, cathode of lithium battery, lithium battery and their preparation method |
| CN107790712A (en) * | 2017-09-30 | 2018-03-13 | 山西沃特海默新材料科技股份有限公司 | A kind of copper alusil alloy nanometer anode material of lithium battery and preparation method thereof |
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2018
- 2018-12-17 CN CN201811542797.2A patent/CN109786686A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1492524A (en) * | 2003-09-10 | 2004-04-28 | 武汉大学 | Silicon alloy and carbon base material composition and its preparing method and use |
| CN101643864A (en) * | 2009-07-10 | 2010-02-10 | 成都中科来方能源科技有限公司 | Multielement silicon alloy/carbon composite material and preparation method and application thereof |
| CN102683639A (en) * | 2012-06-12 | 2012-09-19 | 宁德新能源科技有限公司 | Lithium ion battery anode strip and lithium ion battery employing anode strip |
| US20170346085A1 (en) * | 2016-05-24 | 2017-11-30 | Samsung Sdi Co., Ltd. | Negative electrode active material and method of preparing the same |
| CN107790712A (en) * | 2017-09-30 | 2018-03-13 | 山西沃特海默新材料科技股份有限公司 | A kind of copper alusil alloy nanometer anode material of lithium battery and preparation method thereof |
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Application publication date: 20190521 |