CN108963258A - A kind of porous carbon-based negative electrode material of surface low-level oxidation and preparation method thereof - Google Patents
A kind of porous carbon-based negative electrode material of surface low-level oxidation and preparation method thereof Download PDFInfo
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- CN108963258A CN108963258A CN201810756331.6A CN201810756331A CN108963258A CN 108963258 A CN108963258 A CN 108963258A CN 201810756331 A CN201810756331 A CN 201810756331A CN 108963258 A CN108963258 A CN 108963258A
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- 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
- H01M4/62—Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
- H01M4/624—Electric conductive fillers
- H01M4/625—Carbon or graphite
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- 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
- H01M4/62—Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
- H01M4/624—Electric conductive fillers
- H01M4/626—Metals
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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
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Abstract
The invention discloses a kind of porous carbon-based negative electrode material of surface low-level oxidation, the raw material including following parts by weight: 5-9 parts of nickel powder, 13-17 parts of glass putty, 15-19 parts of pitch, cyclohexanol 21-25 parts carbon-based, 21-25 parts of dehydrated alcohol, 8-12 parts of lithium carbonate, 13-17 parts of Boratex, nickel 5-9 parts of fluoboric acid Asia, 7-11 parts of stannous sulfate, 2-6 parts of potassium oxalate and 7-11 parts of binder.By being added to carbon-based cyclohexanol, dehydrated alcohol, lithium carbonate, Boratex, fluoboric acid Asia nickel, stannous sulfate, potassium oxalate and binder in the feed in the present invention, so that it is porous in the surface of carbon based negative electrodes material formation low-level oxidation, improve modified charge-discharge performance and cycle performance.
Description
Technical field
It is porous carbon-based negative that the present invention relates to the technical fields of carbon based negative electrodes material production more particularly to a kind of surface low-level oxidation
Pole material and preparation method thereof.
Background technique
Lithium ion battery has many advantages, such as small in size, and high reserve of electricity and high discharge capacity is still maintained under long-time use, because
And it is widely used in the equipment such as communication, electronics." carbon substrate " is based on its safety and cost viewpoint, already becomes lithium
The raw material mainstream of ion battery cathode material；And it is various using carbon substrate as the lithium ion battery negative material of raw material and related
Preparation method, be also gradually developed, but the charge-discharge performance after current carbon based negative electrodes material modification is poor, circulation
Performance is poor, therefore propose a kind of porous carbon-based negative electrode material of surface low-level oxidation and preparation method thereof.
Summary of the invention
Technical problems based on background technology, the invention proposes a kind of porous carbon-based negative electrode materials of surface low-level oxidation
And preparation method thereof.
The porous carbon-based negative electrode material of a kind of surface low-level oxidation proposed by the present invention, the raw material including following parts by weight: nickel powder
5-9 parts, 13-17 parts of glass putty, 15-19 parts of pitch, cyclohexanol 21-25 parts carbon-based, 21-25 parts of dehydrated alcohol, 8-12 parts of lithium carbonate,
13-17 parts of Boratex, nickel 5-9 parts of fluoboric acid Asia, 7-11 parts of stannous sulfate, 2-6 parts of potassium oxalate and 7-11 parts of binder.
Preferably, the raw material including following parts by weight: 6-8 parts of nickel powder, 14-16 parts of glass putty, 16-18 parts of pitch, carbon-based ring
22-24 parts of hexanol, 22-24 parts of dehydrated alcohol, 9-11 parts of lithium carbonate, 14-16 parts of Boratex, nickel 6-8 parts of fluoboric acid Asia, sulfuric acid are sub-
8-10 parts of tin, 3-5 parts of potassium oxalate and 8-10 parts of binder.
Preferably, the raw material including following parts by weight: 7 parts of nickel powder, 15 parts of glass putty, 17 parts of pitch, 23 parts of carbon-based cyclohexanol,
23 parts of dehydrated alcohol, 10 parts of lithium carbonate, 15 parts of Boratex, 7 parts of fluoboric acid Asia nickel, 9 parts of stannous sulfate, 4 parts of potassium oxalate and bonding
9 parts of agent.
The invention also provides a kind of preparation methods of the porous carbon-based negative electrode material of surface low-level oxidation, comprising the following steps:
S1: nickel powder and glass putty are chosen, nickel powder and glass putty are added in milling apparatus, are ground in milling apparatus；
Pitch is added in nickel powder described in S2:S1 and glass putty, continuation is ground in milling apparatus, obtains nickel powder, glass putty
With the mixture of powders of pitch；
The mixture of powders of nickel powder described in S3:S2, glass putty and pitch using high-temperature heating, then place into cooling equipment into
Carbon based negative electrodes material is made in row cooling treatment；
S4: carbon based negative electrodes material described in S3 are passed through in high speed mixer, and by carbon-based cyclohexanol, dehydrated alcohol, carbonic acid
Lithium, Boratex, fluoboric acid Asia nickel, stannous sulfate, potassium oxalate and binder are added in high speed mixer；
Carbon based negative electrodes material described in S5:S4 is passed through in drying box, and carbon based negative electrodes material is dried；
Carbon based negative electrodes material described in S6:S5 is placed on and carries out natural cooling under natural conditions, obtains surface after the completion of cooling
The porous carbon-based negative electrode material of low-level oxidation.
Preferably, in the S1, milling apparatus is grinder, and milling time is set as 16-18h.
Preferably, in the S2, milling time is set as 20-22h, and grinder rotating speed is set as 200-300rpm/min.
Preferably, in the S3, heating temperature is set as 900-1200 DEG C, and cooling temperature is set as 10-15 DEG C.
Preferably, in the S4, the revolving speed of height batch mixer is set as 100-1200r/min, and mixing time is set as 4-
6h。
Preferably, in the S5, the temperature setting of drying box is 100-120 DEG C, and drying time is set as 2-3h.
Preferably, in the S6, the time of natural cooling is 4-6h.
Beneficial effects of the present invention: by being added to carbon-based cyclohexanol, dehydrated alcohol, carbonic acid in the feed in the present invention
Lithium, Boratex, fluoboric acid Asia nickel, stannous sulfate, potassium oxalate and binder, so that forming micro- oxygen on the surface of carbon based negative electrodes material
Change porous, improves modified charge-discharge performance and cycle performance.
Specific embodiment
Combined with specific embodiments below the present invention is made further to explain.
Embodiment one
A kind of porous carbon-based negative electrode material of surface low-level oxidation, the raw material including following parts by weight: nickel powder 5 are proposed in the present embodiment
Part, 13 parts of glass putty, 15 parts of pitch, 21 parts of carbon-based cyclohexanol, 21 parts of dehydrated alcohol, 8 parts of lithium carbonate, 13 parts of Boratex, fluoboric acid
5 parts of sub- nickel, 7 parts of stannous sulfate, 2 parts of potassium oxalate and 7 parts of binder；
Preparation method includes the following steps:
S1: nickel powder and glass putty are chosen, nickel powder and glass putty are added in milling apparatus, are ground in milling apparatus；
Pitch is added in nickel powder described in S2:S1 and glass putty, continuation is ground in milling apparatus, obtains nickel powder, glass putty
With the mixture of powders of pitch；
The mixture of powders of nickel powder described in S3:S2, glass putty and pitch using high-temperature heating, then place into cooling equipment into
Carbon based negative electrodes material is made in row cooling treatment；
S4: carbon based negative electrodes material described in S3 are passed through in high speed mixer, and by carbon-based cyclohexanol, dehydrated alcohol, carbonic acid
Lithium, Boratex, fluoboric acid Asia nickel, stannous sulfate, potassium oxalate and binder are added in high speed mixer；
Carbon based negative electrodes material described in S5:S4 is passed through in drying box, and carbon based negative electrodes material is dried；
Carbon based negative electrodes material described in S6:S5 is placed on and carries out natural cooling under natural conditions, obtains surface after the completion of cooling
The porous carbon-based negative electrode material of low-level oxidation.
Embodiment two
A kind of porous carbon-based negative electrode material of surface low-level oxidation, the raw material including following parts by weight: nickel powder 6 are proposed in the present embodiment
Part, 14 parts of glass putty, 16 parts of pitch, 22 parts of carbon-based cyclohexanol, 22 parts of dehydrated alcohol, 9 parts of lithium carbonate, 14 parts of Boratex, fluoboric acid
6 parts of sub- nickel, 8 parts of stannous sulfate, 3 parts of potassium oxalate and 8 parts of binder；
Preparation method includes the following steps:
S1: nickel powder and glass putty are chosen, nickel powder and glass putty are added in milling apparatus, are ground in milling apparatus；
Pitch is added in nickel powder described in S2:S1 and glass putty, continuation is ground in milling apparatus, obtains nickel powder, glass putty
With the mixture of powders of pitch；
The mixture of powders of nickel powder described in S3:S2, glass putty and pitch using high-temperature heating, then place into cooling equipment into
Carbon based negative electrodes material is made in row cooling treatment；
S4: carbon based negative electrodes material described in S3 are passed through in high speed mixer, and by carbon-based cyclohexanol, dehydrated alcohol, carbonic acid
Lithium, Boratex, fluoboric acid Asia nickel, stannous sulfate, potassium oxalate and binder are added in high speed mixer；
Carbon based negative electrodes material described in S5:S4 is passed through in drying box, and carbon based negative electrodes material is dried；
Carbon based negative electrodes material described in S6:S5 is placed on and carries out natural cooling under natural conditions, obtains surface after the completion of cooling
The porous carbon-based negative electrode material of low-level oxidation.
Embodiment three
A kind of porous carbon-based negative electrode material of surface low-level oxidation, the raw material including following parts by weight: nickel powder 7 are proposed in the present embodiment
Part, 15 parts of glass putty, 17 parts of pitch, 23 parts of carbon-based cyclohexanol, 23 parts of dehydrated alcohol, 10 parts of lithium carbonate, 15 parts of Boratex, fluoboric acid
7 parts of sub- nickel, 9 parts of stannous sulfate, 4 parts of potassium oxalate and 9 parts of binder；
Preparation method includes the following steps:
S1: nickel powder and glass putty are chosen, nickel powder and glass putty are added in milling apparatus, are ground in milling apparatus；
Pitch is added in nickel powder described in S2:S1 and glass putty, continuation is ground in milling apparatus, obtains nickel powder, glass putty
With the mixture of powders of pitch；
The mixture of powders of nickel powder described in S3:S2, glass putty and pitch using high-temperature heating, then place into cooling equipment into
Carbon based negative electrodes material is made in row cooling treatment；
S4: carbon based negative electrodes material described in S3 are passed through in high speed mixer, and by carbon-based cyclohexanol, dehydrated alcohol, carbonic acid
Lithium, Boratex, fluoboric acid Asia nickel, stannous sulfate, potassium oxalate and binder are added in high speed mixer；
Carbon based negative electrodes material described in S5:S4 is passed through in drying box, and carbon based negative electrodes material is dried；
Carbon based negative electrodes material described in S6:S5 is placed on and carries out natural cooling under natural conditions, obtains surface after the completion of cooling
The porous carbon-based negative electrode material of low-level oxidation.
Example IV
A kind of porous carbon-based negative electrode material of surface low-level oxidation, the raw material including following parts by weight: nickel powder 8 are proposed in the present embodiment
Part, 16 parts of glass putty, 18 parts of pitch, 24 parts of carbon-based cyclohexanol, 24 parts of dehydrated alcohol, 11 parts of lithium carbonate, 16 parts of Boratex, fluoboric acid
8 parts of sub- nickel, 10 parts of stannous sulfate, 5 parts of potassium oxalate and 10 parts of binder；
Preparation method includes the following steps:
S1: nickel powder and glass putty are chosen, nickel powder and glass putty are added in milling apparatus, are ground in milling apparatus；
Pitch is added in nickel powder described in S2:S1 and glass putty, continuation is ground in milling apparatus, obtains nickel powder, glass putty
With the mixture of powders of pitch；
The mixture of powders of nickel powder described in S3:S2, glass putty and pitch using high-temperature heating, then place into cooling equipment into
Carbon based negative electrodes material is made in row cooling treatment；
S4: carbon based negative electrodes material described in S3 are passed through in high speed mixer, and by carbon-based cyclohexanol, dehydrated alcohol, carbonic acid
Lithium, Boratex, fluoboric acid Asia nickel, stannous sulfate, potassium oxalate and binder are added in high speed mixer；
Carbon based negative electrodes material described in S5:S4 is passed through in drying box, and carbon based negative electrodes material is dried；
Carbon based negative electrodes material described in S6:S5 is placed on and carries out natural cooling under natural conditions, obtains surface after the completion of cooling
The porous carbon-based negative electrode material of low-level oxidation.
Embodiment five
A kind of porous carbon-based negative electrode material of surface low-level oxidation, the raw material including following parts by weight: nickel powder 9 are proposed in the present embodiment
Part, 17 parts of glass putty, 19 parts of pitch, 25 parts of carbon-based cyclohexanol, 25 parts of dehydrated alcohol, 12 parts of lithium carbonate, 17 parts of Boratex, fluoboric acid
9 parts of sub- nickel, 11 parts of stannous sulfate, 6 parts of potassium oxalate and 11 parts of binder；
Preparation method includes the following steps:
S1: nickel powder and glass putty are chosen, nickel powder and glass putty are added in milling apparatus, are ground in milling apparatus；
Pitch is added in nickel powder described in S2:S1 and glass putty, continuation is ground in milling apparatus, obtains nickel powder, glass putty
With the mixture of powders of pitch；
The mixture of powders of nickel powder described in S3:S2, glass putty and pitch using high-temperature heating, then place into cooling equipment into
Carbon based negative electrodes material is made in row cooling treatment；
S4: carbon based negative electrodes material described in S3 are passed through in high speed mixer, and by carbon-based cyclohexanol, dehydrated alcohol, carbonic acid
Lithium, Boratex, fluoboric acid Asia nickel, stannous sulfate, potassium oxalate and binder are added in high speed mixer；
Carbon based negative electrodes material described in S5:S4 is passed through in drying box, and carbon based negative electrodes material is dried；
Carbon based negative electrodes material described in S6:S5 is placed on and carries out natural cooling under natural conditions, obtains surface after the completion of cooling
The porous carbon-based negative electrode material of low-level oxidation.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Anyone skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (10)
1. a kind of porous carbon-based negative electrode material of surface low-level oxidation, which is characterized in that the raw material including following parts by weight: nickel powder 5-9
Part, 13-17 parts of glass putty, 15-19 parts of pitch, cyclohexanol 21-25 parts carbon-based, 21-25 parts of dehydrated alcohol, 8-12 parts of lithium carbonate, boron
Sour sodium 13-17 parts, nickel 5-9 parts of fluoboric acid Asia, 7-11 parts of stannous sulfate, 2-6 parts of potassium oxalate and 7-11 parts of binder.
2. the porous carbon-based negative electrode material of a kind of surface low-level oxidation according to claim 1, which is characterized in that including following heavy
Measure the raw material of part: 6-8 parts of nickel powder, 14-16 parts of glass putty, 16-18 parts of pitch, cyclohexanol 22-24 parts carbon-based, dehydrated alcohol 22-24
Part, 9-11 parts of lithium carbonate, 14-16 parts of Boratex, nickel 6-8 parts of fluoboric acid Asia, 8-10 parts of stannous sulfate, 3-5 parts of potassium oxalate and viscous
Agent 8-10 parts of knot.
3. the porous carbon-based negative electrode material of a kind of surface low-level oxidation according to claim 1, which is characterized in that including following heavy
Measure part raw material: 7 parts of nickel powder, 15 parts of glass putty, 17 parts of pitch, 23 parts of carbon-based cyclohexanol, 23 parts of dehydrated alcohol, 10 parts of lithium carbonate,
15 parts of Boratex, 7 parts of fluoboric acid Asia nickel, 9 parts of stannous sulfate, 4 parts of potassium oxalate and 9 parts of binder.
4. the porous carbon-based negative electrode material of a kind of surface low-level oxidation according to claim 1, which is characterized in that preparation method
The following steps are included:
S1: nickel powder and glass putty are chosen, nickel powder and glass putty are added in milling apparatus, are ground in milling apparatus；
Pitch is added in nickel powder described in S2:S1 and glass putty, continuation is ground in milling apparatus, obtains nickel powder, glass putty
With the mixture of powders of pitch；
The mixture of powders of nickel powder described in S3:S2, glass putty and pitch using high-temperature heating, then place into cooling equipment into
Carbon based negative electrodes material is made in row cooling treatment；
S4: carbon based negative electrodes material described in S3 are passed through in high speed mixer, and by carbon-based cyclohexanol, dehydrated alcohol, carbonic acid
Lithium, Boratex, fluoboric acid Asia nickel, stannous sulfate, potassium oxalate and binder are added in high speed mixer；
Carbon based negative electrodes material described in S5:S4 is passed through in drying box, and carbon based negative electrodes material is dried；
Carbon based negative electrodes material described in S6:S5 is placed on and carries out natural cooling under natural conditions, obtains surface after the completion of cooling
The porous carbon-based negative electrode material of low-level oxidation.
5. the porous carbon-based negative electrode material of a kind of surface low-level oxidation according to claim 4, which is characterized in that in the S1,
Milling apparatus is grinder, and milling time is set as 16-18h.
6. the porous carbon-based negative electrode material of a kind of surface low-level oxidation according to claim 4, which is characterized in that in the S2,
Milling time is set as 20-22h, and grinder rotating speed is set as 200-300rpm/min.
7. the porous carbon-based negative electrode material of a kind of surface low-level oxidation according to claim 4, which is characterized in that in the S3,
Heating temperature is set as 900-1200 DEG C, and cooling temperature is set as 10-15 DEG C.
8. the porous carbon-based negative electrode material of a kind of surface low-level oxidation according to claim 4, which is characterized in that in the S4,
The revolving speed of height batch mixer is set as 100-1200r/min, and mixing time is set as 4-6h.
9. the porous carbon-based negative electrode material of a kind of surface low-level oxidation according to claim 4, which is characterized in that in the S5,
The temperature setting of drying box is 100-120 DEG C, and drying time is set as 2-3h.
10. the porous carbon-based negative electrode material of a kind of surface low-level oxidation according to claim 4, which is characterized in that in the S6,
The time of natural cooling is 4-6h.
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Cited By (1)
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Application publication date: 20181207 |