CN105870455A - Sulfur-containing anode acid bonding agent, lithium sulfur battery and preparing method - Google Patents
Sulfur-containing anode acid bonding agent, lithium sulfur battery and preparing method Download PDFInfo
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- CN105870455A CN105870455A CN201610393604.6A CN201610393604A CN105870455A CN 105870455 A CN105870455 A CN 105870455A CN 201610393604 A CN201610393604 A CN 201610393604A CN 105870455 A CN105870455 A CN 105870455A
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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
- H01M4/621—Binders
- H01M4/622—Binders being polymers
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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
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
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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
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/058—Construction or manufacture
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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
- H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
- H01M4/139—Processes of manufacture
- H01M4/1397—Processes of manufacture of electrodes based on inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy
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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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- 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
Abstract
The invention provides a sulfur-containing anode acid bonding agent, a lithium sulfur battery, a preparing method for a sulfur-containing anode and a preparing method for the lithium sulfur battery. The acid bonding agent is an acid high-molecular polymer. By means of the sulfur-containing anode acid bonding agent, the lithium sulfur battery and the preparing method, the utilization ratio of active substances in the lithium sulfur battery can be increased, and the electrochemistry charging-discharging performance of the lithium sulfur battery is improved.
Description
Technical field
The present invention relates to acid binding agent and lithium-sulfur cell technical field, particularly relate to a kind of lithium sulphur
The acid binding agent of battery sulfur-bearing positive pole, lithium-sulfur cell and sulfur-bearing positive pole, the system of lithium-sulfur cell
Preparation Method.
Background technology
All the time, in order to meet developing rapidly and the electricity of high-energy-density of regenerative resource
The tight demand of the aspect such as motor-car, electronic equipment, exploitation has high-energy-density and power density
New forms of energy promote the productive life of social development and people to be the most necessary.
Lithium-sulfur cell is the energy battery most in lithium rechargeable battery with potential using value,
Its energy density can exceed 2～3 times than the lithium ion battery of application now.Further, since its
There is environmental friendliness, abundant raw material source, the many advantages such as the highest theoretical energy density,
Attract the extensive concern of researcher, but the inherent insulating properties of sulphur, polysulfide have been dissolved in
Electrolyte causes " shuttle effect ", active material utilization is low and Li dendrite is to battery peace
The problems such as full hidden danger, limit the extensive application of lithium-sulfur cell.
Molten " the shuttle effect " caused in the electrolytic solution of polysulfide is to cause lithium-sulfur cell capacity
The main cause of decay rapidly.Researcher has gone out various according to the faultiness design of lithium-sulfur cell
Positive electrode, including carbon cladding, ring-opening polymerisation, conducting polymer cladding and chain sulphur generation
Suppress " shuttle effect " for ring-type sulphur etc., its chemical property is obtained for the biggest raising,
But its preparation technology is the most numerous and diverse, difficult, it is not easy to commercialization.
In consideration of it, how to suppress polysulfide dissolving in the electrolytic solution by simple method,
Slow down " shuttle effect ", to improve the utilization rate of active material in lithium-sulfur cell, improve lithium sulphur
Battery electrochemical charge-discharge performance becomes to be presently required and solves the technical problem that.
Summary of the invention
For solving above-mentioned technical problem, the present invention provides a kind of lithium-sulfur cell sulfur-bearing positive pole
Acid binding agent, lithium-sulfur cell and sulfur-bearing positive pole, the preparation method of lithium-sulfur cell, it is possible to increase
The utilization rate of active material in lithium-sulfur cell, improves the charge discharge performance of lithium-sulfur cell.
First aspect, the present invention provides the acid binding agent of a kind of lithium-sulfur cell sulfur-bearing positive pole,
Described acid binding agent is acid high molecular polymer.
Alternatively, described acid binding agent, include but not limited to: polyacrylic acid and acrylic acid with
The copolymer of other vinyl monomers, polymethylacrylic acid and methacrylic acid and other vinyl
The copolymer of the copolymer of monomer, polystyrolsulfon acid and styrene and other vinyl monomers
Sulfonated products, carboxylic graft polymers or block polymer, containing sulfonic grafting
The composition of one or more in polymer or block polymer.
Alternatively, the good solvent of described acid high molecular polymer is water miscible or oil-soluble
's；
The water-soluble good solvent of described acid high molecular polymer is deionized water；
The oil-soluble good solvent of described acid high molecular polymer, includes but not limited to: acetone,
Butanone, cyclohexanone, 1-METHYLPYRROLIDONE, N,N-dimethylformamide, N, N-dimethyl second
Acid amides, oxolane, chloroform, dichloromethane, carbon tetrachloride, dichloroethanes, toluene, second
Acetoacetic ester, n-hexane, the composition of one or more of hexamethylene.
Alternatively, regulate the alkaloids that the pH value of described acid high molecular polymer is used,
Include but not limited to: lithium hydroxide, lithium carbonate, lithium bicarbonate, NaOH, sodium carbonate,
The composition of one or more in sodium acid carbonate.
Second aspect, the present invention provides a kind of lithium-sulfur cell, including: sulfur-bearing positive pole, negative pole,
Electrolyte and the barrier film between positive pole and negative pole, described electrolyte fully infiltrate described positive pole,
Negative pole and barrier film；
Described positive pole, including: plus plate current-collecting body and be just formed at described anode collection surface
Pole material layer；
Described positive electrode material layer is made up of the material containing active material, conductive agent and binding agent；
Described binding agent is above-mentioned acid binding agent.
Alternatively, described acid binding agent accounts for 1wt%～10wt% of described positive electrode material layer.
Alternatively, the described material containing active material, include but not limited to: sublimed sulfur, carbon material
Material composite sulfur, polymer are by one or several in chemical crosslinking sulphur；
The described material containing active material accounts for 85wt%～95wt% of described positive electrode material layer；
And/or,
Described conductive agent, includes but not limited to: acetylene black, electrically conductive graphite or conductive carbon black super
P；
Described conductive agent accounts for 5wt%～15wt% of described positive electrode material layer.
Alternatively, described lithium-sulfur cell is button cell, takeup type or Stackable batteries；
And/or,
The external packing of described lithium-sulfur cell is rigid package or the flexible packaging of box hat；
And/or,
Described negative pole, including: negative current collector and the negative pole that is formed at this negative pole currect collecting surface
Material layer；
And/or,
Active material used in described negative electrode material layer, including: Delanium, native graphite,
CNT, Graphene or lithium sheet；
And/or,
Described barrier film is the film with loose structure；Described barrier film is for produce by drawing process
Polyethylene, polyacrylic individual layer or composite diaphragm, have at individual layer or composite diaphragm surface
The composite diaphragm that formed after machine or inorganic coating or prepared by copy paper or electrical spinning method
There is glass fibre or the macromolecule non-woven fabrics barrier film of microfibrillar structure.
The third aspect, the present invention provides the preparation side of the sulfur-bearing positive pole in a kind of above-mentioned lithium-sulfur cell
Method, including:
By the material containing active material and conductive agent in water or organic solvent, it is fully ground all
Even, obtain the first mixed liquor；
In described first mixed liquor, add above-mentioned acid binding agent continue to grind, obtain second
Mixed liquor；
Described second mixed liquor is coated on aluminium foil, dries in vacuum drying oven, obtain sulfur-bearing
Positive pole.
Fourth aspect, the present invention provides the preparation method of a kind of above-mentioned lithium-sulfur cell, including:
Barrier film is placed in negative pole and makes to assemble between the sulfur-bearing positive pole prepared in aforementioned manners；
Inject traditional lithium-sulfur cell electrolyte, after making sulfur-bearing positive pole and barrier film fully be infiltrated
Carry out the encapsulation of battery.
As shown from the above technical solution, the lithium-sulfur cell of the present invention acid bonding of sulfur-bearing positive pole
Agent, lithium-sulfur cell and sulfur-bearing positive pole, the preparation method of lithium-sulfur cell, it is possible to increase lithium-sulfur cell
The utilization rate of middle active material, improves lithium-sulfur cell charge discharge performance.
Accompanying drawing explanation
The system of the sulfur-bearing positive pole in a kind of lithium-sulfur cell that Fig. 1 provides for one embodiment of the invention
The schematic flow sheet of Preparation Method；
The flow process of the preparation method of a kind of lithium-sulfur cell that Fig. 2 provides for one embodiment of the invention
Schematic diagram.
Detailed description of the invention
For making the purpose of the embodiment of the present invention, technical scheme and advantage clearer, below will knot
Close the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear,
Complete description, it is clear that described embodiment is only a part of embodiment of the present invention, and
It is not all, of embodiment.Based on embodiments of the invention, those of ordinary skill in the art are not having
Have and make the every other embodiment obtained under creative work premise, broadly fall into the present invention
The scope of protection.
From the character of element sulphur, polysulfide can occur disproportionated reaction in acid condition,
Generate elemental sulfur.If so forming the microenvironment of acidity in the positive electrode of sulfur-bearing, then
When in lithium-sulfur cell discharge process, sulphur forms polysulfide with lithium, due to local acidic micro-environment
Exist, polysulfide generation disproportionated reaction, meeting in-situ preparation elemental sulfur, thus the many sulfurations of suppression
Thing dissolving in the electrolytic solution, improves the utilization ratio of element sulphur, thus improves lithium-sulfur cell
Discharge capacity.
Embodiments provide the acid binding agent of a kind of lithium-sulfur cell sulfur-bearing positive pole, institute
State acid binding agent for acid high molecular polymer.
In a particular application, described acid binding agent, include but not limited to: polyacrylic acid and third
Olefin(e) acid and the copolymer of other vinyl monomers, polymethylacrylic acid and methacrylic acid and other
The copolymer of vinyl monomer, polystyrolsulfon acid and styrene are total to other vinyl monomers
The sulfonated products of polymers, carboxylic graft polymers or block polymer, containing sulfonic group
Graft polymers or block polymer etc. in the composition of one or more.
In a particular application, the good solvent of described acid high molecular polymer be water miscible or
Oil-soluble；
The water-soluble good solvent of described acid high molecular polymer is deionized water；
The oil-soluble good solvent of described acid high molecular polymer, includes but not limited to: acetone,
Butanone, cyclohexanone, 1-METHYLPYRROLIDONE, N,N-dimethylformamide, N, N-dimethyl second
Acid amides, oxolane, chloroform, dichloromethane, carbon tetrachloride, dichloroethanes, toluene, second
The composition of one or more in acetoacetic ester, n-hexane, hexamethylene etc..
In a particular application, the alkali that the pH value of described acid high molecular polymer is used is regulated
Class material, includes but not limited to: lithium hydroxide (LiOH), lithium carbonate (Li2CO3), carbon
Acid hydrogen lithium (LiHCO3), NaOH, sodium carbonate, one or more in sodium acid carbonate etc.
Composition.
The acid high molecular polymer of the present embodiment be can well be dissolved in aqueous solvent or
In person's oil-based solvent, it is possible to obtain homogeneous dispersion liquid, this acidity high molecular polymer has very
Good adhesion property, it is possible to make positive electrode adhere well on aluminium foil.
Acid binding agent according to the present embodiment, it is possible to prepare the sulfur-bearing positive pole in lithium-sulfur cell,
Prepare lithium-sulfur cell further, it is possible to increase the utilization rate of active material in lithium-sulfur cell, improve
Lithium-sulfur cell charge discharge performance.
The embodiment of the present invention also provides for a kind of lithium-sulfur cell, including: sulfur-bearing positive pole, negative pole, electricity
Solve liquid and the barrier film between positive pole and negative pole, described electrolyte fully infiltrate described positive pole,
Negative pole and barrier film；
Described positive pole, including: plus plate current-collecting body and be just formed at described anode collection surface
Pole material layer；
Described positive electrode material layer is made up of the material containing active material, conductive agent and binding agent；
Described binding agent is above-mentioned acid binding agent.
In a particular application, described acid binding agent accounts for described positive electrode material layer
1wt%～10wt%, can carry out described acid binding agent according to the concrete condition of positive electrode material layer
The adjustment of content.
In a particular application, the described material containing active material, include but not limited to: sublimed sulfur,
Material with carbon element composite sulfur, polymer are by one or several in chemical crosslinking sulphur etc.；
The described material containing active material accounts for 85wt%～95wt% of described positive electrode material layer.
In a particular application, described conductive agent, include but not limited to: acetylene black, electrically conductive graphite
Or conductive carbon black super P etc.；
Described conductive agent accounts for 5wt%～15wt% of described positive electrode material layer.
In a particular application, on the basis of above-mentioned acid binding agent, described lithium-sulfur cell can lead to
Cross the conventional method manufacture of state of the art；Described lithium-sulfur cell can be button cell,
Takeup type or Stackable batteries etc..
In a particular application, the external packing of described lithium-sulfur cell can be the rigid package of box hat or soft
Mould packaging.
In a particular application, described negative pole, including: negative current collector and be formed at this negative pole collection
The negative electrode material layer of flow surface.
Further, active material used in described negative electrode material layer, including: Delanium,
Native graphite, CNT, Graphene or lithium sheet etc..
In a particular application, described barrier film is the film with loose structure, it is possible to stop positive and negative
Extremely short road；Described barrier film is polyethylene, the polyacrylic individual layer produced by drawing process or answers
Close barrier film, formed after individual layer or composite diaphragm surface carry out organic or inorganic coating compound every
Film or the glass fibre with microfibrillar structure prepared by copy paper or electrical spinning method or height
Molecule non-woven fabrics barrier film.
The lithium-sulfur cell of the present embodiment, using acid high molecular polymer as gluing in sulfur-bearing positive pole
Knot agent, proposes the mechanism of acid binding agent in-situ reducing sulphur, it is possible to increase activity in lithium-sulfur cell
The utilization rate of material, improves lithium-sulfur cell charge discharge performance.
Fig. 1 shows the sulfur-bearing positive pole in the above-mentioned lithium-sulfur cell that one embodiment of the invention provides
Preparation method, as it is shown in figure 1, include step 101-103:
101, by the material containing active material and conductive agent in water or organic solvent, (grinding
Under the grinding of alms bowl) it is fully ground uniformly, obtain the first mixed liquor.
102, in described first mixed liquor, add above-mentioned acid binding agent (i.e. acid macromolecule
Polymer) continue to grind, obtain the second mixed liquor.
103, described second mixed liquor is coated on aluminium foil, dries in vacuum drying oven,
To sulfur-bearing positive pole.
Sulfur-bearing positive pole based on the present embodiment, can prepare lithium-sulfur cell, it is possible to increase lithium-sulfur cell
The utilization rate of middle active material, improves lithium-sulfur cell charge discharge performance.
Fig. 2 shows the preparation method of the above-mentioned lithium-sulfur cell that one embodiment of the invention provides, as
Shown in Fig. 2, including step 201-202:
201, barrier film is placed in negative pole and uses between the sulfur-bearing positive pole that method shown in Fig. 1 prepares
Assemble.
202, inject traditional lithium-sulfur cell electrolyte and (i.e. contain 1M LiTFSI's
The mixed liquor of DOL/DME (1/1)), make sulfur-bearing positive pole and barrier film carry out electricity after fully being infiltrated
The encapsulation in pond.
The lithium-sulfur cell made by the preparation method of the lithium-sulfur cell of the present embodiment is high by acidity
Molecularly Imprinted Polymer is as the binding agent in sulfur-bearing positive pole, it is possible to increase active material in lithium-sulfur cell
Utilization rate, improve lithium-sulfur cell charge discharge performance.
In order to better illustrate the present invention, following provide embodiment 1-7 and reference examples 1, group
Fill lithium-sulfur cell, and by following method of testing, embodiment 1-7 and reference examples 1 are carried out electricity
The test of chemical property.Described method of testing is: the capacity of lithium-sulfur cell uses LANDA to survey
The lithium-sulfur cell discharge capacity when 0.1C measured by examination instrument.
Embodiment 1
1, the preparation of acid binding agent: weigh the polyacrylic acid of preset weight, be dissolved in water
In, the solution of stirring to formation stable homogeneous, pH value is 3.32.
2, the preparation of positive plate: by sulfur-bearing active material: acetylene black: binder solution=8:1:1
Ratio, with deionized water/ethanol (4/1) as solvent, after furnishing slurry, enterprising at aluminium foil
Row film, film carries out drying 24h in the vacuum drying oven of 60 DEG C, is put in glove box standby.
3, the assembling of button cell: barrier film is placed between both positive and negative polarity, carry out battery assembling,
Encapsulation, above operation is all to complete in the glove box of full argon gas.The performance of lithium-sulfur cell is shown in
Table 1.
Embodiment 2
The present embodiment acidity binding agent is same as in Example 1, except for the difference that polyacrylic acid solution
PH value lithium hydroxide is adjusted to 5.19.Carry out battery according to the same manner as in Example 1
Assembling and test, the performance of lithium-sulfur cell is shown in Table 1.
Embodiment 3
The present embodiment acidity binding agent is acrylic acid and butyl acrylate and methyl methacrylate
Copolymer emulsion, pH value is 3.45.Carry out battery according to the same manner as in Example 1
Assembling and test, the performance of lithium-sulfur cell is shown in Table 1.
Embodiment 4
The present embodiment acidity binding agent is polystyrolsulfon acid solution, regulates pH with NaOH
Value is 2.15.Carry out assembling and the test of battery, lithium sulphur electricity according to the same manner as in Example 1
The performance in pond is shown in Table 1.
Embodiment 5
The present embodiment acidity binding agent is CMC grafted polyacrylic acid solution, uses hydrogen-oxygen
Changing lithium regulation pH value is 3.55.Carry out according to the same manner as in Example 1 battery assembling and
Test, the performance of lithium-sulfur cell is shown in Table 1.
Embodiment 6
The present embodiment acidity binding agent is vinyl sulfonic acid and butyl acrylate and methacrylic acid
The copolymer emulsion of methyl esters, pH value is 3.61.Carry out electricity according to the same manner as in Example 1
The assembling in pond and test, the performance of lithium-sulfur cell is shown in Table 1.
Embodiment 7
The present embodiment acidity binding agent is the aqueous solution of vinyl sulfonic acid grafting polyvinyl alcohol, pH
Value is 1.8.Carry out assembling and the test of battery, lithium sulphur electricity according to the same manner as in Example 1
The performance in pond is shown in Table 1.
Reference examples 1
The present embodiment uses neutral Kynoar (PVDF) as binding agent, PVDF
It is prepared as binder solution with N-methyl pyrrolidones (NMP).By sulfur-bearing active material: second
Acetylene black: the ratio of binder solution=8:1:1, with NMP as solvent, after furnishing slurry,
Carrying out film on aluminium foil, film carries out drying 24h in the vacuum drying oven of 60 DEG C, is put into gloves
In case standby.The assembling of battery and test same as in Example 1.The performance of lithium-sulfur cell is shown in Table
1。
The discharge performance of table 1 lithium-sulfur cell
By the result that embodiment 1-7 and reference examples 1 are tested, utilize the present invention
The lithium-sulfur cell that the acid binding agent of embodiment prepares, it is possible to increase lithium-sulfur cell electrochemistry charge and discharge
Electrical property.
It is last it is noted that various embodiments above is only in order to illustrate technical scheme,
It is not intended to limit；Although the present invention being described in detail with reference to foregoing embodiments,
It will be understood by those within the art that: it still can be to described in foregoing embodiments
Technical scheme modify, or the most some or all of technical characteristic carried out equivalent replace
Change；And these amendments or replacement, do not make the essence of appropriate technical solution depart from the present invention each
The scope of embodiment technical scheme.
Claims (10)
1. the acid binding agent of a lithium-sulfur cell sulfur-bearing positive pole, it is characterised in that described
Acid binding agent is acid high molecular polymer.
Acid binding agent the most according to claim 1, it is characterised in that described acidity
Binding agent, includes but not limited to: polyacrylic acid and acrylic acid and the copolymerization of other vinyl monomers
Thing, polymethylacrylic acid and methacrylic acid and the copolymer of other vinyl monomers, polyphenyl second
Alkene sulfonic acid and styrene and the sulfonated products of the copolymer of other vinyl monomers, carboxylic connect
Branch polymer or block polymer, containing sulfonic graft polymers or block polymer
In the composition of one or more.
Acid binding agent the most according to claim 1, it is characterised in that described acidity
The good solvent of high molecular polymer is water miscible or oil-soluble；
The water-soluble good solvent of described acid high molecular polymer is deionized water；
The oil-soluble good solvent of described acid high molecular polymer, includes but not limited to: acetone,
Butanone, cyclohexanone, 1-METHYLPYRROLIDONE, N,N-dimethylformamide, N, N-dimethyl second
Acid amides, oxolane, chloroform, dichloromethane, carbon tetrachloride, dichloroethanes, toluene, second
Acetoacetic ester, n-hexane, the composition of one or more of hexamethylene.
Acid binding agent the most according to claim 1, it is characterised in that regulation is described
The alkaloids that the pH value of acid high molecular polymer is used, includes but not limited to: hydrogen-oxygen
Change the one in lithium, lithium carbonate, lithium bicarbonate, NaOH, sodium carbonate, sodium acid carbonate or
Several compositions.
5. a lithium-sulfur cell, it is characterised in that including: sulfur-bearing positive pole, negative pole, electrolysis
Liquid and the barrier film between positive pole and negative pole, described electrolyte fully infiltrates described positive pole, bears
Pole and barrier film；
Described positive pole, including: plus plate current-collecting body and be just formed at described anode collection surface
Pole material layer；
Described positive electrode material layer is made up of the material containing active material, conductive agent and binding agent；
Described binding agent is the acid binding agent according to any one of claim 1-4.
Lithium-sulfur cell the most according to claim 5, it is characterised in that described acidity is glued
Knot agent accounts for 1wt%～10wt% of described positive electrode material layer.
Lithium-sulfur cell the most according to claim 5, it is characterised in that described containing activity
The material of material, includes but not limited to: sublimed sulfur, material with carbon element composite sulfur, polymer are by changing
Cross-link one or several in sulphur；
The described material containing active material accounts for 85wt%～95wt% of described positive electrode material layer；
And/or,
Described conductive agent, includes but not limited to: acetylene black, electrically conductive graphite or conductive carbon black super
P；
Described conductive agent accounts for 5wt%～15wt% of described positive electrode material layer.
Lithium-sulfur cell the most according to claim 5, it is characterised in that described lithium sulphur electricity
Pond is button cell, takeup type or Stackable batteries；
And/or,
The external packing of described lithium-sulfur cell is rigid package or the flexible packaging of box hat；
And/or,
Described negative pole, including: negative current collector and the negative pole that is formed at this negative pole currect collecting surface
Material layer；
And/or,
Active material used in described negative electrode material layer, including: Delanium, native graphite,
CNT, Graphene or lithium sheet；
And/or,
Described barrier film is the film with loose structure；Described barrier film is for produce by drawing process
Polyethylene, polyacrylic individual layer or composite diaphragm, have at individual layer or composite diaphragm surface
The composite diaphragm that formed after machine or inorganic coating or prepared by copy paper or electrical spinning method
There is glass fibre or the macromolecule non-woven fabrics barrier film of microfibrillar structure.
9. sulfur-bearing positive pole in the lithium-sulfur cell according to any one of claim 5-8
Preparation method, it is characterised in that including:
By the material containing active material and conductive agent in water or organic solvent, it is fully ground all
Even, obtain the first mixed liquor；
The acid bonding according to any one of claim 1-4 is added in described first mixed liquor
Agent continues to grind, and obtains the second mixed liquor；
Described second mixed liquor is coated on aluminium foil, dries in vacuum drying oven, obtain sulfur-bearing
Positive pole.
10. a preparation method for the lithium-sulfur cell according to any one of claim 5-8, its
It is characterised by, including:
Barrier film is placed in negative pole and use method described in claim 9 to prepare sulfur-bearing positive pole it
Between assemble；
Inject traditional lithium-sulfur cell electrolyte, after making sulfur-bearing positive pole and barrier film fully be infiltrated
Carry out the encapsulation of battery.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106505204A (en) * | 2016-12-28 | 2017-03-15 | 山东大学 | A kind of lithium-sulphur cell positive electrode binding agent and preparation method thereof |
| CN108807819A (en) * | 2018-06-15 | 2018-11-13 | 珠海光宇电池有限公司 | Diaphragm and preparation method thereof and lithium-sulfur cell |
| CN109075338A (en) * | 2016-03-18 | 2018-12-21 | 布鲁技术公司 | High-energy density lithium metal-containing polymer battery |
| CN109792052A (en) * | 2016-09-26 | 2019-05-21 | 株式会社Lg化学 | Lithium-sulfur rechargeable battery anode acrylic adhesives and application thereof |
| CN115036508A (en) * | 2022-06-15 | 2022-09-09 | 深圳市三和朝阳科技股份有限公司 | Lithium-sulfur battery positive electrode material, lithium-sulfur battery positive electrode plate and lithium-sulfur battery |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101379651A (en) * | 2005-12-22 | 2009-03-04 | Jsr株式会社 | Binder composition for secondary battery electrode, slurry for secondary battery electrode, and secondary battery electrode |
| CN102569730A (en) * | 2012-01-31 | 2012-07-11 | 中南大学 | Preparation method for positive plate of lithium-sulfur battery |
| CN102746813A (en) * | 2012-07-03 | 2012-10-24 | 张倩 | Preparation method for aqueous binder used for lithium ion battery |
| CN105244474A (en) * | 2015-09-08 | 2016-01-13 | 上海空间电源研究所 | High-specific capacity lithium-sulfur secondary battery composite cathode and preparation method thereof |
-
2016
- 2016-06-06 CN CN201610393604.6A patent/CN105870455A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101379651A (en) * | 2005-12-22 | 2009-03-04 | Jsr株式会社 | Binder composition for secondary battery electrode, slurry for secondary battery electrode, and secondary battery electrode |
| US20090280409A1 (en) * | 2005-12-22 | 2009-11-12 | Jrs Corporation | Binder composition for secondary battery electrode, slurry for secondary battery electrode, and secondary battery electrode |
| CN102569730A (en) * | 2012-01-31 | 2012-07-11 | 中南大学 | Preparation method for positive plate of lithium-sulfur battery |
| CN102746813A (en) * | 2012-07-03 | 2012-10-24 | 张倩 | Preparation method for aqueous binder used for lithium ion battery |
| CN105244474A (en) * | 2015-09-08 | 2016-01-13 | 上海空间电源研究所 | High-specific capacity lithium-sulfur secondary battery composite cathode and preparation method thereof |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109075338A (en) * | 2016-03-18 | 2018-12-21 | 布鲁技术公司 | High-energy density lithium metal-containing polymer battery |
| CN109075338B (en) * | 2016-03-18 | 2022-07-05 | 布鲁技术公司 | High energy density lithium metal polymer battery |
| CN109792052A (en) * | 2016-09-26 | 2019-05-21 | 株式会社Lg化学 | Lithium-sulfur rechargeable battery anode acrylic adhesives and application thereof |
| CN106505204A (en) * | 2016-12-28 | 2017-03-15 | 山东大学 | A kind of lithium-sulphur cell positive electrode binding agent and preparation method thereof |
| CN106505204B (en) * | 2016-12-28 | 2019-06-14 | 山东大学 | A kind of lithium-sulphur cell positive electrode binder and preparation method thereof |
| CN108807819A (en) * | 2018-06-15 | 2018-11-13 | 珠海光宇电池有限公司 | Diaphragm and preparation method thereof and lithium-sulfur cell |
| CN108807819B (en) * | 2018-06-15 | 2021-06-29 | 珠海冠宇电池股份有限公司 | Diaphragm, preparation method thereof and lithium-sulfur battery |
| CN115036508A (en) * | 2022-06-15 | 2022-09-09 | 深圳市三和朝阳科技股份有限公司 | Lithium-sulfur battery positive electrode material, lithium-sulfur battery positive electrode plate and lithium-sulfur battery |
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