CN107910489A - A kind of lithium ion battery negative material and preparation method thereof - Google Patents
A kind of lithium ion battery negative material and preparation method thereof Download PDFInfo
- Publication number
- CN107910489A CN107910489A CN201711217647.XA CN201711217647A CN107910489A CN 107910489 A CN107910489 A CN 107910489A CN 201711217647 A CN201711217647 A CN 201711217647A CN 107910489 A CN107910489 A CN 107910489A
- Authority
- CN
- China
- Prior art keywords
- coiled material
- lithium ion
- ion battery
- oxide
- battery negative
- 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.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/04—Construction or manufacture in general
- H01M10/0404—Machines for assembling batteries
- H01M10/0409—Machines for assembling batteries for cells with wound electrodes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/04—Construction or manufacture in general
- H01M10/0431—Cells with wound or folded electrodes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/058—Construction or manufacture
- H01M10/0587—Construction or manufacture of accumulators having only wound construction elements, i.e. wound positive electrodes, wound negative electrodes and wound separators
-
- 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
- H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
- H01M4/139—Processes of manufacture
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/572—Means for preventing undesired use or discharge
-
- 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
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Battery Electrode And Active Subsutance (AREA)
Abstract
A kind of lithium ion battery negative material and preparation method thereof, the present invention relates to battery technology field；It includes the coiled material with graphite, titanate, the oxide of metallic tin and silicon-base alloy, is attached at the protective film composition of coiled material medial surface.It can greatly improve the safety in utilization of lithium ion battery, and improve its performance, extend its service life, and its processing and fabricating is convenient, be conducive to improve production efficiency, practicality is stronger.
Description
Technical field
The present invention relates to battery technology field, and in particular to a kind of lithium ion battery negative material and preparation method thereof.
Background technology
Lithium battery be one kind using lithium metal or lithium alloy as negative material, using the one-shot battery of non-aqueous electrolytic solution,
With lithium ion polymer battery it is different with rechargeable battery lithium ion battery.The inventor of lithium battery is Edison.By
It is very active in the chemical characteristic of lithium metal so that processing, preservation, the use of lithium metal, it is very high to environmental requirement.So
Lithium battery is not applied for a long time.With the development of twentieth century end microelectric technique, the equipment of miniaturization is increasing, right
Power supply proposes very high requirement.Lithium battery enters the large-scale practical stage therewith.Positive electrode：Optional positive electrode
Very much, main product uses lithium iron phosphate more at present.Negative material：Use graphite, new research finds that titanate may more
It is more preferable material.
Although the use of ion cathode material lithium of the prior art can increase considerably its processing safety,
During actual operation, appoint and the problems such as performance is bad, service life is short so occurs, especially lithium metal is as negative electrode active material
During material, in charging process repeatedly, lithium ion will be deposited and dissolved repeatedly in lithium metal surface, and form ingotism
Thing, this ingotism thing is gradually after accumulation, it would be possible to wears out isolation film, disease and electrolyte and cathode joint, occurs
Short circuit is even exploded, and there is extremely serious security risk, it would be highly desirable to improve.
The content of the invention
In view of the defects and deficiencies of the prior art, the present invention intends to provide a kind of simple in structure, design rationally, make
With convenient lithium ion battery negative material and preparation method thereof, it can greatly improve the safety in utilization of lithium ion battery,
And improve its performance, extend its service life, and its processing and fabricating is convenient, is conducive to improve production efficiency, practicality
It is stronger.
To achieve the above object, lithium ion battery negative material of the present invention, it include with graphite, titanate,
The oxide of metallic tin and the coiled material of silicon-base alloy, the protective film composition for being attached at coiled material medial surface；
Further, the oxide of the metallic tin is the one or more in tin oxide, stannic oxide.
Further, the organic solvent is that the one or several kinds in alcohols, olefines mix.
The preparation method of lithium ion battery negative material of the present invention, its step are as follows：
1st, by the oxide dissolving of titanate, metallic tin in organic solvent, coiled material is immersed in the organic solvent；
2nd, graphite and silicon-base alloy are utilized into mixer after mixing, are uniformly sprinkled upon the coiled material upper surface after being soaked,
Mixture carried out using hairbrush evenly laid out；
3rd, the coiled material handled well in step 2 is sent into high-temperature heat treatment in baking oven, order is sprinkled upon the graphite and metal of coiled material upper surface
Infiltration raw material in the oxide and coiled material of tin is reacted, and forms the coiled material with individual layer composite oxides；
The 4th, protective film is pasted on to the one side that the coiled material handled well in step 3 carries composite oxides；
5th, it is last, by coiled material wound on the membrane periphery being coated on outside positive electrode, you can.
Further, after the step 3 handles coiled material well, coiled material is again dipped into titanate, metallic tin
Oxide dissolves in organic solvent, is soaked using same process conditions, by Dun coiled materials after immersion according to the behaviour of step 3
Make technique, composite oxides are formed at the back side of coiled material, so as to obtain the coiled material with two-layer compound oxide.
Further, the soaking temperature in the step 1 is 50-90 DEG C, soaking time 12-24h.
Further, between the hopcalite of the organic solvent in the step 1 and titanate, metallic tin
Mass ratio is 1000-1200:1.
The operation principle of the present invention：Coiled material is immersed in the solution containing anode raw material using organic solvent so that negative
Pole raw material more preferably can be merged more fully in coiled material, then by the graphite in anode raw material and silicon-base alloy in hot environment
Lower fusion is produced with the good composite oxides of stability, the anode coiled material energy eventually formed as in coiled material in coiled material surface
Lithium ion battery volumetric expansion speed in charging process repeatedly is enough reduced, is greatly enhanced the safe to use of lithium ion battery
Property.
With the above structure, the present invention has the beneficial effect that：A kind of lithium ion battery negative material of the present invention and
Its preparation method, it can greatly improve the safety in utilization of lithium ion battery, and improve its performance, extend its use
Service life, and its processing and fabricating is conveniently, is conducive to improve production efficiency, practicality is stronger, and the present invention has simple in structure, setting conjunction
The advantages that reason, low manufacture cost.
Embodiment
Embodiment one：
Present embodiment use technical solution be：Lithium ion battery negative material described in present embodiment,
It includes the coiled material with graphite, titanate, the oxide of metallic tin and silicon-base alloy, is attached at the protection of coiled material medial surface
Film is formed；
Further, the oxide of the metallic tin is the one or more in tin oxide, stannic oxide.
Further, the organic solvent is that the one or several kinds in alcohols, olefines mix.
The preparation method of lithium ion battery negative material described in present embodiment, its step are as follows：
1st, by the oxide dissolving of titanate, metallic tin in organic solvent, coiled material is immersed in the organic solvent；
2nd, graphite and silicon-base alloy are utilized into mixer after mixing, are uniformly sprinkled upon the coiled material upper surface after being soaked,
Mixture carried out using hairbrush evenly laid out；
3rd, the coiled material handled well in step 2 is sent into high-temperature heat treatment in baking oven, order is sprinkled upon the graphite and metal of coiled material upper surface
Infiltration raw material in the oxide and coiled material of tin is reacted, and forms the coiled material with individual layer composite oxides；
4th, coiled material is again dipped into the oxide dissolving with titanate, metallic tin in organic solvent, using same technique
Condition is soaked, the operating procedure by Dun coiled materials after immersion according to step 3, and composite oxides are formed at the back side of coiled material, from
And obtain the coiled material with two-layer compound oxide；
The 5th, protective film is pasted on to the one side that the coiled material handled well in step 3 carries composite oxides；
6th, it is last, by coiled material wound on the membrane periphery being coated on outside positive electrode, you can.
Further, the soaking temperature in the step 1 is 90 DEG C, soaking time 12h.
Further, between the hopcalite of the organic solvent in the step 1 and titanate, metallic tin
Mass ratio is 1000:1.
Operation principle in present embodiment：Coiled material is immersed in the solution containing anode raw material using organic solvent
In so that anode raw material more preferably can be merged more fully in coiled material, then by the graphite and silicon-base alloy in anode raw material
In high temperature environments in fusion such as coiled material, produce with the good composite oxides of stability, eventually form in coiled material surface
Anode coiled material can reduce lithium ion battery volumetric expansion speed in charging process repeatedly, be greatly enhanced lithium ion battery
Safety in utilization.
With the above structure, had the beneficial effect that in present embodiment：One kind described in present embodiment
Lithium ion battery negative material and preparation method thereof, it can greatly improve the safety in utilization of lithium ion battery, and improve
Its performance, extends its service life, and its processing and fabricating is convenient, is conducive to improve production efficiency, practicality is stronger, this hair
It is bright that there is the advantages that simple in structure, it is reasonable to set, low manufacture cost.
Embodiment two：
Lithium ion battery negative material described in present embodiment, it is included with graphite, titanate, the oxygen of metallic tin
The coiled material of compound and silicon-base alloy, the protective film composition for being attached at coiled material medial surface；
Further, the oxide of the metallic tin is tin oxide.
Further, the organic solvent is alcohols.
The preparation method of lithium ion battery negative material of the present invention, its step are as follows：
1st, by the oxide dissolving of titanate, metallic tin in organic solvent, coiled material is immersed in the organic solvent；
2nd, graphite and silicon-base alloy are utilized into mixer after mixing, are uniformly sprinkled upon the coiled material upper surface after being soaked,
Mixture carried out using hairbrush evenly laid out；
3rd, the coiled material handled well in step 2 is sent into high-temperature heat treatment in baking oven, order is sprinkled upon the graphite and metal of coiled material upper surface
Infiltration raw material in the oxide and coiled material of tin is reacted, and forms the coiled material with individual layer composite oxides；
4th, coiled material is again dipped into the oxide dissolving with titanate, metallic tin in organic solvent, using same technique
Condition is soaked, the operating procedure by Dun coiled materials after immersion according to step 3, and composite oxides are formed at the back side of coiled material, from
And obtain the coiled material with two-layer compound oxide；
The 5th, protective film is pasted on to the one side that the coiled material handled well in step 3 carries composite oxides；
6th, it is last, by coiled material wound on the membrane periphery being coated on outside positive electrode, you can.
Further, the soaking temperature in the step 1 is 60 DEG C, soaking time 18h.
Further, between the hopcalite of the organic solvent in the step 1 and titanate, metallic tin
Mass ratio is 1200:1.
The above, is merely illustrative of the technical solution of the present invention and unrestricted, those of ordinary skill in the art are to this hair
The other modifications or equivalent substitution that bright technical solution is made, without departing from the spirit and scope of technical solution of the present invention,
It should all cover among scope of the presently claimed invention.
Claims (7)
- A kind of 1. lithium ion battery negative material, it is characterised in that：It is included with graphite, titanate, the oxide of metallic tin And silicon-base alloy coiled material, be attached at coiled material medial surface protective film form.
- A kind of 2. lithium ion battery negative material according to claim 1 and preparation method thereof, it is characterised in that：Described The oxide of metallic tin is tin oxide, the one or more in stannic oxide.
- A kind of 3. lithium ion battery negative material according to claim 1 and preparation method thereof, it is characterised in that：Described Organic solvent is alcohols, the one or several kinds in olefines mix.
- A kind of 4. preparation method of lithium ion battery negative material, it is characterised in that：Its step is as follows：(1), by the oxide dissolving of titanate, metallic tin in organic solvent, coiled material is immersed in the organic solvent；(2), graphite and silicon-base alloy are utilized into mixer after mixing, is uniformly sprinkled upon the coiled material upper table after being soaked Face, is carried out mixture using hairbrush evenly laid out；(3), by the coiled material handled well in step (2) be sent into baking oven in high-temperature heat treatment, order be sprinkled upon coiled material upper surface graphite and Infiltration raw material in the oxide and coiled material of metallic tin is reacted, and forms the coiled material with individual layer composite oxides；(4), protective film is pasted on to the one side that the coiled material handled well in step (3) carries composite oxides；(5), it is last, by coiled material wound on the membrane periphery being coated on outside positive electrode, you can.
- A kind of 5. preparation method of lithium ion battery negative material according to claim 4, it is characterised in that：The step Suddenly the soaking temperature in (1) is 50-90 DEG C, soaking time 12-24h.
- A kind of 6. preparation method of lithium ion battery negative material according to claim 4, it is characterised in that：The step Suddenly the mass ratio between the hopcalite of the organic solvent in (1) and titanate, metallic tin is 1000-1200:1.
- A kind of 7. preparation method of lithium ion battery negative material according to claim 4, it is characterised in that：The step Suddenly after (3) handle coiled material well, coiled material is again dipped into the oxide dissolving with titanate, metallic tin in organic solvent, Soaked using same process conditions, the operating procedure by Dun coiled materials after immersion according to step (3), in the back side shape of coiled material Into composite oxides, so as to obtain the coiled material with two-layer compound oxide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711217647.XA CN107910489A (en) | 2017-11-28 | 2017-11-28 | A kind of lithium ion battery negative material and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711217647.XA CN107910489A (en) | 2017-11-28 | 2017-11-28 | A kind of lithium ion battery negative material and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107910489A true CN107910489A (en) | 2018-04-13 |
Family
ID=61848967
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711217647.XA Pending CN107910489A (en) | 2017-11-28 | 2017-11-28 | A kind of lithium ion battery negative material and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107910489A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102299286A (en) * | 2011-08-01 | 2011-12-28 | 华为技术有限公司 | Battery diaphragm and preparation method and lithium ion battery thereof |
| CN104916809A (en) * | 2014-03-12 | 2015-09-16 | 中国科学院金属研究所 | Integrated flexible electrode |
| CN106960959A (en) * | 2017-04-12 | 2017-07-18 | 上海德朗能动力电池有限公司 | A kind of lithium ion battery negative and lithium ion battery |
| CN106972150A (en) * | 2017-04-17 | 2017-07-21 | 上海德朗能动力电池有限公司 | A kind of lithium titanate base lithium ion GND, lithium ion battery and its chemical synthesizing method |
-
2017
- 2017-11-28 CN CN201711217647.XA patent/CN107910489A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102299286A (en) * | 2011-08-01 | 2011-12-28 | 华为技术有限公司 | Battery diaphragm and preparation method and lithium ion battery thereof |
| CN104916809A (en) * | 2014-03-12 | 2015-09-16 | 中国科学院金属研究所 | Integrated flexible electrode |
| CN106960959A (en) * | 2017-04-12 | 2017-07-18 | 上海德朗能动力电池有限公司 | A kind of lithium ion battery negative and lithium ion battery |
| CN106972150A (en) * | 2017-04-17 | 2017-07-21 | 上海德朗能动力电池有限公司 | A kind of lithium titanate base lithium ion GND, lithium ion battery and its chemical synthesizing method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102394305B (en) | Foamy copper oxide/copper lithium ion battery anode and preparation method thereof | |
| CN106654267A (en) | Plant fiber three-dimensional structural carbon material used as cathode material of sodium-ion battery and lithium ion battery and preparation method thereof | |
| CN109921089B (en) | Lithium ion solid electrolyte film and application thereof | |
| CN104183842B (en) | anode material and preparation method thereof | |
| CN109671908A (en) | Metal lithium electrode and preparation method thereof, lithium battery | |
| CN103337613A (en) | Silicon-carbon composite material and preparation method thereof, and lithium ion battery | |
| CN103618069B (en) | The preparation method of the coated di-iron trioxide lithium ion battery negative material of a kind of lithium titanate | |
| CN106960955A (en) | Ternary cathode material of lithium ion battery of vanadium sulfide cladding and preparation method thereof | |
| CN106876673B (en) | The method that one-step method prepares the core-shell structure lithium sulfur battery anode material that titanium dioxide and graphene bilayer coat altogether | |
| CN104716311B (en) | A kind of stannic disulphide nano slice composite and its preparation method and application | |
| CN104362330A (en) | LiNixCo1-x-yMnyO2 cathode material coated with boron-lithium composite oxide and preparation method thereof | |
| CN110534742A (en) | A kind of preparation method of anode composite material of lithium sulfur battery | |
| CN108110324A (en) | A kind of preparation method of solid lithium ion battery | |
| CN110148719A (en) | The preparation method and applications of modification thin-walled multi-stage porous carbon for lithium-sulfur cell | |
| CN106384814B (en) | Co3V2O8The composite material and preparation method of C layers of cladding | |
| CN105529447B (en) | A kind of carbon nanotube-carbon-porous silicon composite material preparation method and application | |
| CN104332618A (en) | Nickel-cobalt-lithium manganese positive electrode material with boron-lithium composite oxide clad on surface, and preparation method thereof | |
| CN110137568A (en) | A kind of composite solid electrolyte, preparation method and all-solid-state battery system | |
| CN207409588U (en) | all-solid-state battery | |
| CN102070187B (en) | Method for preparing spinel lithium titanate serving as negative material of lithium ion battery | |
| CN107742722A (en) | A kind of method of modifying of lithium ion battery manganate cathode material for lithium | |
| CN107658461A (en) | A kind of method that ferric flouride/carbon composite is prepared using organoiron compound as raw material | |
| CN109390587A (en) | All-solid-state battery cathode, preparation method and all-solid-state battery | |
| CN107946548A (en) | Store up the preparation method of oxide/lithium ferrite and the compound lithium ion battery negative material of carbon | |
| CN109037683A (en) | A kind of negative electrode of lithium ion battery plate and its modified technique |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180413 |