CN108878777A - A kind of single-ion conductor polymer lithium-sulfur cell - Google Patents

A kind of single-ion conductor polymer lithium-sulfur cell Download PDF

Info

Publication number
CN108878777A
CN108878777A CN201710329705.1A CN201710329705A CN108878777A CN 108878777 A CN108878777 A CN 108878777A CN 201710329705 A CN201710329705 A CN 201710329705A CN 108878777 A CN108878777 A CN 108878777A
Authority
CN
China
Prior art keywords
ion conductor
lithium
sulfur cell
sulphur
conductor polymer
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.)
Granted
Application number
CN201710329705.1A
Other languages
Chinese (zh)
Other versions
CN108878777B (en
Inventor
程寒松
孙玉宝
李中
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Salfa (Wuhan) New Energy Technology Co., Ltd
Original Assignee
HANGZHOU JULI HYDROGEN ENERGY TECHNOLOGY Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by HANGZHOU JULI HYDROGEN ENERGY TECHNOLOGY Co Ltd filed Critical HANGZHOU JULI HYDROGEN ENERGY TECHNOLOGY Co Ltd
Priority to CN201710329705.1A priority Critical patent/CN108878777B/en
Publication of CN108878777A publication Critical patent/CN108878777A/en
Application granted granted Critical
Publication of CN108878777B publication Critical patent/CN108878777B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00Electrodes
    • H01M4/02Electrodes composed of, or comprising, active material
    • H01M4/36Selection of substances as active materials, active masses, active liquids
    • H01M4/362Composites
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/05Accumulators with non-aqueous electrolyte
    • H01M10/052Li-accumulators
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00Electrodes
    • H01M4/02Electrodes composed of, or comprising, active material
    • H01M4/13Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
    • H01M4/139Processes of manufacture
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00Electrodes
    • H01M4/02Electrodes composed of, or comprising, active material
    • H01M4/36Selection of substances as active materials, active masses, active liquids
    • H01M4/38Selection of substances as active materials, active masses, active liquids of elements or alloys
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00Electrodes
    • H01M4/02Electrodes composed of, or comprising, active material
    • H01M4/36Selection of substances as active materials, active masses, active liquids
    • H01M4/60Selection of substances as active materials, active masses, active liquids of organic compounds
    • H01M4/602Polymers
    • H01M4/604Polymers containing aliphatic main chain polymers
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries

Abstract

The present invention provides a kind of single-ion conductor polymer lithium-sulfur cells, including:Sulphur anode, cathode and single-ion conductor polymer dielectric blend film, the cathode are metal lithium sheet, and the single-ion conductor polymer dielectric blend film is between the sulphur anode and cathode.Compared with prior art, small molecule lithium salts is free of in single-ion conductor polymer lithium-sulfur cell of the invention, is avoided concentration polarization caused by anions and canons electromigration rate difference, is helped to improve the safety of battery;Also, the dosage of organic solvent is less in polymer lithium-sulfur cell, alleviates the dissolution and loss of active material, helps to improve cyclical stability, avoids using " shuttle " effect caused by ethers electrolyte, avoids using LiPF6Concentration polarization caused by esters electrolyte, safety with higher.

Description

A kind of single-ion conductor polymer lithium-sulfur cell
Technical field
The present invention relates to lithium-sulfur cell technical field more particularly to a kind of single-ion conductor polymer lithium-sulfur cells.
Background technique
Elemental sulfur is up to 1675mAh g as the theoretical specific capacity of electrode material-1, the lithium sulphur electricity that is matched with lithium metal The energy density in pond reaches 2600Wh kg-1, the energy density of the sodium-sulphur battery matched with metallic sodium is up to 1262Wh kg-1, Metal sulphur battery is a kind of potential high specific energy secondary power supply.But the electronic conductivity of elemental sulfur is very low, about 10-30S m-1, become and restrict its matter of utmost importance as positive electrode.For the low problem of the electronic conductivity of elemental sulfur, solution point It is two kinds, the first is the size for reducing sulfur granules, promotes the generation of electron tunneling effect;Second is to become active material Liquid greatly reduces the interface resistance between collector and solution.Former strategy derives two kinds of specific ways, first is that Sulfur granules are embedded in micropore carbon carrier, carbon-supported nano sulphur is obtained;Second is that polyacrylonitrile is calcined after being blended with elemental sulfur, by sulphur content Son is dispersed in the form of chemical bond and is fixed in the composite.The advantage of this strategy is that the electrolysis of esters system still can be used The battery assembly technology of matter and maturation, the disadvantage is that the carrying capacity of active material is lower, about 35wt%, synthesis technology is cumbersome, and And still there is a degree of decaying.Latter strategy be replace currently used esters electrolyte with ethers electrolyte, the result is that The polysulfide dissolution that preliminary electrochemical reduction generates in the electrolytic solution, and is conducive to further electrochemical oxidation.It is this The advantage of strategy is that the preparation process of anode is simple, the disadvantage is that penetrate porous polymer electrolyte diaphragm right for soluble polysulfide Redox reaction, i.e. shuttle effect occurs with lithium metal afterwards.
In the solution of above-mentioned sulphur anode, the composite sulfur anode that polyacrylonitrile and elemental sulfur are calcined has been obtained extensively Application.Certainly, problem is to be dispersed in the form of chemical bond even if sulphur in the carrier, and there are still capacity in esters electrolyte The problem of decaying.2002, Jiulin Wang etc. was calcined 6 hours after polyacrylonitrile is blended with elemental sulfur at 280-300 DEG C, The mass fraction of sulphur is 53.41% in obtained composite material, in 1M LiPF6EC/DEC (1:1, v/v) it is provided in electrolyte 700mAh g-1Specific capacity.C.Lai etc. first calcines 6 hours then 300 at 150 DEG C after polyacrylonitrile is blended with elemental sulfur DEG C continue calcining 3 hours, the mass fraction for obtaining sulphur in S-containing composite is 57%, in 1M LiPF6PC/EC/DEC (1: 4:5, v/v/v) very stable cycle performance is provided in electrolyte, is stablized in 745mAh g-1.Shuya Wei etc. is by polypropylene Nitrile and elemental sulfur are blended in 400 DEG C of calcinings, and the mass fraction of sulphur is 45.6% in obtained S-containing composite, in 1M LiPF6 EC/DEC (1:1, v/v) stable cycle performance is obtained in electrolyte, capacity remains at after 0.4C runs 1000 circulations 1000mAh g-1More than.
Meanwhile restrict the practical application of lithium-sulfur cell there are one factor, i.e. lithium anode bring safety is hidden Suffer from.Traditional commerce electrolyte is to conduct ion by small molecule lithium salts, can be rich in fact, anion and be not involved in electrode reaction Collection causes concentration polarization, and then lead to the formation of dendrite in electrode surface.
Summary of the invention
Present invention solves the technical problem that being to provide a kind of single-ion conductor polymer lithium-sulfur cell, concentration polarization is avoided Change, safety with higher.
In view of this, the present invention provides a kind of single-ion conductor polymer lithium-sulfur cells, including:Sulphur anode, cathode and Single-ion conductor polymer dielectric blend film, the cathode are metal lithium sheet, and the single-ion conductor polymer dielectric is total Mixed film is between the sulphur anode and cathode.
Preferably, the sulphur anode is prepared as follows:Polyacrylonitrile and elemental sulfur are calcined in nitrogen atmosphere, obtained To polyacrylonitrile-sulphur;Polyacrylonitrile-the sulphur, carbon dust and bonding agent are mixed, obtain sulphur anode after rolling film.
Preferably, the mass ratio of the polyacrylonitrile and elemental sulfur is 1:4.
Preferably, calcination temperature is 340-360 DEG C, and calcination time is 6 hours.
Preferably, the single-ion conductor polymer dielectric blend film is as electrolyte and diaphragm.
Preferably, the single-ion conductor polymer dielectric blend film is that poly- (ethylene-alt- maleic anhydride) side chain connects The polymer dielectric blend film of the double sulfimides of branch.
Preferably, the single-ion conductor polymer dielectric blend film is prepared as follows:By single-ion conductor The ionomer of polymer and (Kynoar-hexafluoropropene) copolymer mix, and N-Methyl pyrrolidone is added, and heating stirring obtains To homogeneous phase solution;The homogeneous phase solution is placed in culture dish, heats, takes film off after solvent is evaporated, is sliced, vacuum is dry It is dry, obtain single-ion conductor polymer dielectric blend film.
Preferably, the matter of the ionomer of the single-ion conductor polymer and (Kynoar-hexafluoropropene) copolymer Amount is than being 2:3.
Preferably, the ionomer of the single-ion conductor polymer is prepared as follows:By poly- (ethylene-alt- horse Carry out acid anhydrides) it is mixed with the double sulfimides of 4- aminobenzene-trifluoromethyl, using metacresol as solvent, isoquinolin is catalyst, and heating is anti- It answers, it is dry by lithium ion exchanged, obtain the ionomer of single-ion conductor polymer.
Preferably, the single-ion conductor polymer dielectric blend film is carried out using one or more of following solvent The solvation of lithium ion:Ethylene carbonate, propene carbonate, dimethyl carbonate, diethyl carbonate, methyl ethyl carbonate.
The present invention provides a kind of single-ion conductor polymer lithium-sulfur cells, including:Sulphur anode, cathode and single-ion conductor Polymer dielectric blend film, the cathode are metal lithium sheet, and the single-ion conductor polymer dielectric blend film is described Between sulphur anode and cathode.Compared with prior art, small molecule is free of in single-ion conductor polymer lithium-sulfur cell of the invention Lithium salts avoids concentration polarization caused by zwitterion electromigration rate difference, helps to improve the safety of battery;Also, The dosage of organic solvent is less in polymer lithium-sulfur cell, reduces the dissolution and loss of active material, and it is steady to help to improve circulation It is qualitative, it avoids using " shuttle " effect caused by ethers electrolyte, avoids using LiPF6Concentration difference caused by esters electrolyte Polarization, safety with higher.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of polymer lithium-sulfur cell;
Fig. 2 is the cyclic voltammetry curve of the polymer lithium-sulfur cell of preparation of the embodiment of the present invention;
Fig. 3 is the charge/discharge platform curve (0.2C) of the polymer lithium-sulfur cell of preparation of the embodiment of the present invention;
Fig. 4 is the high rate performance of the polymer lithium-sulfur cell of preparation of the embodiment of the present invention;
Fig. 5 is charge and discharge platform curve of the polymer lithium-sulfur cell of preparation of the embodiment of the present invention under different multiplying;
Fig. 6 is cycle performance of the polymer lithium-sulfur cell of preparation of the embodiment of the present invention under 1C multiplying power.
Specific embodiment
For a further understanding of the present invention, the preferred embodiment of the invention is described below with reference to embodiment, still It should be appreciated that these descriptions are only further explanation the features and advantages of the present invention, rather than to the claims in the present invention Limitation.
The embodiment of the invention discloses a kind of single-ion conductor polymer lithium-sulfur cells, as shown in Figure 1, including:Sulphur anode 101, cathode 102 and single-ion conductor polymer dielectric blend film 103, cathode 102 are metal lithium sheet, single-ion conductor polymerization Object electrolyte blend film 103 is between sulphur anode 101 and cathode 102.
Specifically, the present invention mixes polyacrylonitrile with the calcined product of elemental sulfur with a certain proportion of carbon dust and bonding agent Film preparation sulphur anode is rolled after conjunction, using metal lithium sheet as cathode, with the double sulfimides of poly- (ethylene-alt- maleic anhydride) side chain graft Polymer dielectric blend film as diaphragm and electrolyte, the mixed solvent of ethylene carbonate and dimethyl carbonate is as molten The solvation of agent help lithium ion.
Preferably, the sulphur anode is prepared as follows:By polyacrylonitrile and elemental sulfur in nitrogen atmosphere Calcining, obtains polyacrylonitrile-sulphur;Polyacrylonitrile-the sulphur, carbon dust and bonding agent are mixed, obtain sulphur anode after rolling film.Its In, the mass ratio of the polyacrylonitrile and elemental sulfur is preferably 1:4;Calcination temperature is preferably 340-360 DEG C, more preferably 350- 360 DEG C, calcination time is preferably 6 hours, and heating rate is preferably 4-6 DEG C/min, and more preferably 5 DEG C/min.System of the present invention Standby polyacrylonitrile-sulphur, the mass fraction of sulphur are about 45wt%.The mass ratio of the polyacrylonitrile-sulphur, carbon dust and bonding agent is excellent It is selected as 2-4:1:1, more preferably 3:1:1.The step for obtaining sulphur anode is specially:It weighs polyacrylonitrile-sulphur, acetylene black and gathers inclined Vinyl fluoride sulphur is added suitable N-Methyl pyrrolidone (NMP) in small beaker, and heating stirring obtains sticky equal afterwards for a period of time Even slurry;Slurry is coated uniformly on aluminium foil surface with scraper, 60 DEG C of drying remove NMP, then are cut into directly with slicer Diameter is the round positive plate of 16mm, continues 60 DEG C and is dried in vacuo 24 hours.
Preferably, the single-ion conductor polymer dielectric blend film is used as electrolyte and diaphragm, lithium simultaneously Transference number of ions is 1 or close to 1.Preferably poly- (the Malaysia ethylene-alt- of single-ion conductor polymer dielectric blend film Acid anhydrides) the double sulfimides of side chain graft polymer dielectric blend film.The single-ion conductor polymer dielectric blend film It is prepared as follows:The ionomer of single-ion conductor polymer and (Kynoar-hexafluoropropene) copolymer are mixed, N-Methyl pyrrolidone is added, heating stirring obtains homogeneous phase solution;The homogeneous phase solution is inclined in culture dish, is heated, to Solvent takes film off after being evaporated, be sliced, and vacuum drying obtains single-ion conductor polymer dielectric blend film.Wherein, the list The mass ratio of the ionomer of ionic conduction polymer and (Kynoar-hexafluoropropene) copolymer is preferably 2:3.
The ionomer of the single-ion conductor polymer is preferably prepared as follows:By poly- (ethylene-alt- maleic acid Acid anhydride) it is mixed with the double sulfimides of 4- aminobenzene-trifluoromethyl, using metacresol as solvent, isoquinolin is catalyst, heating reaction, It is dry by lithium ion exchanged, obtain the ionomer of single-ion conductor polymer.Synthesis path is as follows:
Preferably, the single-ion conductor polymer dielectric blend film uses one of following solvent or several Kind carries out the solvation of lithium ion:Ethylene carbonate, propene carbonate, dimethyl carbonate, diethyl carbonate, methyl ethyl carbonate.
From above scheme as can be seen that being free of small molecule lithium in single-ion conductor polymer lithium-sulfur cell provided by the invention Salt avoids concentration polarization caused by zwitterion electromigration rate difference, helps to improve the safety of battery;Also, it is poly- The dosage for closing organic solvent in object lithium-sulfur cell is less, reduces the dissolution and loss of active material, helps to improve stable circulation Property, it avoids using " shuttle " effect caused by ethers electrolyte, avoids using LiPF6Concentration polarization caused by esters electrolyte Change, safety with higher.
For a further understanding of the present invention, technical solution provided by the invention is carried out specifically below with reference to embodiment Bright, protection scope of the present invention is not limited by the following examples.
Raw material and chemical reagent used in the embodiment of the present invention are commercially available.
Embodiment 1
(1) polyacrylonitrile-magister of sulfur:It is in mass ratio 1 by polyacrylonitrile and elemental sulfur:It is ground in mortar after 4 weighings Mill makes to be uniformly mixed for 1.5 hours.Then by it, 350 DEG C are calcined 6 hours in a nitrogen atmosphere, and heating rate is 5 DEG C/min.It is cold But product " polyacrylonitrile-sulphur " is obtained afterwards.Elemental analysis shows that the mass fraction of wherein sulphur is about 45wt%.
(2) preparation of sulfur electrode piece:According to 6:2:2 mass ratio weighs polyacrylonitrile-sulphur, acetylene black respectively and gathers inclined fluorine Ethylene sulphur is added suitable N-Methyl pyrrolidone (NMP) in small beaker, and heating stirring obtains sticky uniform afterwards for a period of time Slurry.Slurry is coated uniformly on aluminium foil surface with scraper, 60 DEG C of drying remove NMP, then are cut into diameter with slicer For the round positive plate of 16mm, continues 60 DEG C and be dried in vacuo 24 hours.
(3) preparation of the polymer dielectric of the double sulfimides of poly- (ethylene-alt- maleic anhydride) side chain graft:Poly- (second Alkene-alt- maleic anhydride) it is mixed with the double sulfimides of 4- aminobenzene-trifluoromethyl according to stoichiometric ratio, it is molten with metacresol Agent, isoquinolin are catalyst, heating reaction.It is dry using lithium ion exchanged, obtain single-ion conductor polymer from poly- Object.
(5) preparation of single-ion conductor polymer dielectric blend film:It is 2 according to mass ratio:3 weigh respectively ionomer and In small beaker suitable N-Methyl pyrrolidone is added as solvent, heating is stirred in (Kynoar-hexafluoropropene) copolymer It mixes to obtain transparent homogeneous phase solution.Solution is inclined in culture dish, being placed in horizontal heating plate and is heated, is taken off after solvent is evaporated Lower film.The blend film tentatively prepared is cut into the disk that diameter is 18mm.Disk diaphragm is continued to be dried in vacuo thorough removing Organic solvent.
(6) button cell assembles:In the glove box of argon gas protection, elastic slice, gasket, lithium are sequentially placed into negative electrode casing Piece, ethylene carbonate and dimethyl carbonate (v/v, 1:1) polymer dielectric blend film, ethylene carbonate and the carbonic acid impregnated Dimethyl ester (v/v, 1:1) the sulphur anode infiltrated, is packaged after covering anode cover with sealing machine.
Cyclic voltammetry of the present invention is using electrode system:Lithium metal is used as to electrode and reference electrode, sulfur electrode As anode.Electrical potential scan rate is 0.1mV/s, 1.5~3V of scanning range (vs.Li+/Li)。
Charge-discharge test carries out on blue electric tester, investigates the high rate performance and cyclical stability of battery.
Test result is described as follows:
Test results are shown in figure 2 for the cyclic voltammetric of the polymer lithium-sulfur cell of preparation of the embodiment of the present invention, from figure As can be seen that it has a pair of of redox peaks, the peak potential of oxidation peak is 2.4V, and the peak potential of reduction peak is 1.5V.Document Middle polyacrylonitrile-sulphur anode is in LiPF6Esters electrolyte in cyclic voltammetric also only a pair of of redox peaks.It therefore can be with Find out, although the small molecule lithium salts of any double ion type is not added in the present invention, battery can still run, obtain just Normal electrochemical redox behavior.
Charge/discharge voltage platform curve corresponding with Fig. 2 is as shown in figure 3, it can be seen from the figure that charge/discharge voltage is flat The peak potential of the corresponding voltage in the center of platform curve and Fig. 2 cyclic voltammetric corresponds, and the specific capacity of charge/discharge is 1000mAh g-1
Test results are shown in figure 4 for the multiplying power of the polymer lithium-sulfur cell of preparation of the embodiment of the present invention, 1140mAh g-1@ 0.2C, 1020mAh g-1@0.4C, 876mAh g-1@0.6C, 700mAh g-1@0.8C, 568mAh g-1@1.0C.It can be with from figure Find out, with being stepped up for multiplying power, specific discharge capacity is gradually reduced, then, change multiplying power again, as a result, it has been found that specific capacity with The multiplying power test result of front is consistent, shows that single-ion conductor polymer dielectric being capable of steadily conducting lithium ions.
For charge/discharge voltage platform curve corresponding with multiplying power shown in Fig. 3 test as shown in figure 5, multiplying power is bigger, polarization is electric It presses bigger.Finally, the loop test under 1C multiplying power is carried out to battery, as shown in fig. 6, having carried out 300 circulations, battery specific capacity Stablize in~600mAh g-1
Above-mentioned test result proves, what gel single-ion conductor polymer dielectric, polyacrylonitrile-sulphur and lithium metal were constituted Single-ion conductor polymer lithium-sulfur cell be it is feasible, avoid polysulfide caused by using ethers electrolyte shuttle effect It answers, avoids using LiPF6Esters electrolyte bring concentration polarization.
The above description of the embodiment is only used to help understand the method for the present invention and its core ideas.It should be pointed out that pair For those skilled in the art, without departing from the principle of the present invention, the present invention can also be carried out Some improvements and modifications, these improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims (10)

1. a kind of single-ion conductor polymer lithium-sulfur cell, which is characterized in that including:Sulphur anode, cathode and single-ion conductor are poly- Polymer electrolyte blend film, the cathode are metal lithium sheet, and the single-ion conductor polymer dielectric blend film is in the sulphur Between anode and cathode.
2. single-ion conductor polymer lithium-sulfur cell according to claim 1, which is characterized in that the sulphur anode is according to such as The preparation of lower section method:
Polyacrylonitrile and elemental sulfur are calcined in nitrogen atmosphere, obtain polyacrylonitrile-sulphur;
Polyacrylonitrile-the sulphur, carbon dust and bonding agent are mixed, obtain sulphur anode after rolling film.
3. single-ion conductor polymer lithium-sulfur cell according to claim 2, which is characterized in that the polyacrylonitrile and list The mass ratio of matter sulphur is 1:4.
4. single-ion conductor polymer lithium-sulfur cell according to claim 2, which is characterized in that calcination temperature 340- 360 DEG C, calcination time is 6 hours.
5. single-ion conductor polymer lithium-sulfur cell according to claim 1, which is characterized in that the single-ion conductor is poly- Polymer electrolyte blend film is as electrolyte and diaphragm.
6. single-ion conductor polymer lithium-sulfur cell according to claim 1, which is characterized in that the single-ion conductor is poly- Polymer electrolyte blend film is that the polymer dielectric of the double sulfimides of poly- (ethylene-alt- maleic anhydride) side chain graft is blended Film.
7. single-ion conductor polymer lithium-sulfur cell according to claim 1, which is characterized in that the single-ion conductor is poly- Polymer electrolyte blend film is prepared as follows:
The ionomer of single-ion conductor polymer and (Kynoar-hexafluoropropene) copolymer are mixed, N- methyl pyrrole is added Pyrrolidone, heating stirring obtain homogeneous phase solution;
The homogeneous phase solution is placed in culture dish, heats, takes film off after solvent is evaporated, is sliced, vacuum drying obtains list Ionic conduction polymer electrolyte blend film.
8. single-ion conductor polymer lithium-sulfur cell according to claim 7, which is characterized in that the single-ion conductor is poly- The mass ratio of the ionomer and (Kynoar-hexafluoropropene) copolymer that close object is 2:3.
9. single-ion conductor polymer lithium-sulfur cell according to claim 7, which is characterized in that the single-ion conductor is poly- The ionomer for closing object is prepared as follows:
Poly- (ethylene-alt- maleic anhydride) is mixed with the double sulfimides of 4- aminobenzene-trifluoromethyl, using metacresol as solvent, Isoquinolin is catalyst, heating reaction, dry by lithium ion exchanged, obtains the ionomer of single-ion conductor polymer.
10. single-ion conductor polymer lithium-sulfur cell according to claim 1, which is characterized in that the single-ion conductor Polymer dielectric blend film carries out the solvation of lithium ion using one or more of following solvent:
Ethylene carbonate, propene carbonate, dimethyl carbonate, diethyl carbonate, methyl ethyl carbonate.
CN201710329705.1A 2017-05-11 2017-05-11 Single-ion-conducting polymer lithium-sulfur battery Active CN108878777B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710329705.1A CN108878777B (en) 2017-05-11 2017-05-11 Single-ion-conducting polymer lithium-sulfur battery

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710329705.1A CN108878777B (en) 2017-05-11 2017-05-11 Single-ion-conducting polymer lithium-sulfur battery

Publications (2)

Publication Number Publication Date
CN108878777A true CN108878777A (en) 2018-11-23
CN108878777B CN108878777B (en) 2020-10-30

Family

ID=64319611

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201710329705.1A Active CN108878777B (en) 2017-05-11 2017-05-11 Single-ion-conducting polymer lithium-sulfur battery

Country Status (1)

Country Link
CN (1) CN108878777B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112382788A (en) * 2020-09-08 2021-02-19 合肥国轩高科动力能源有限公司 Single-ion conductive polymer electrolyte and preparation method and application thereof
CN112898457A (en) * 2019-12-03 2021-06-04 巴莱诺斯清洁能源控股公司 Single ion conducting polymers for electrochemical devices
JP7373008B2 (en) 2022-03-31 2023-11-01 住友化学株式会社 Alkali metal-containing polymer, and electrolyte composition and battery containing the same

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101438453A (en) * 2006-03-22 2009-05-20 赛昂能源有限公司 Electrode protection in both aqueous and non-aqueous electrochemical cells, including rechargeable lithium batteries
WO2014129971A1 (en) * 2013-02-25 2014-08-28 National University Of Singapore Polyamide single-ion conducting composite polymer electrolyte
CN104183869A (en) * 2014-08-25 2014-12-03 江苏明魁高分子材料技术有限公司 Lithium single ionic conductive microporous electrolyte membrane and preparation method thereof
CN104183867A (en) * 2014-08-12 2014-12-03 中国科学院青岛生物能源与过程研究所 Preparation method and application of single ion conductor nano-particle reinforced lithium battery diaphragm or polymer electrolyte
CN104835966A (en) * 2015-04-30 2015-08-12 奇瑞汽车股份有限公司 Lithium sulfur battery cathode material and preparation method thereof
CN105789531A (en) * 2014-12-25 2016-07-20 杭州聚力氢能科技有限公司 Barrier membrane and preparation method thereof and secondary battery comprising barrier membrane

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101438453A (en) * 2006-03-22 2009-05-20 赛昂能源有限公司 Electrode protection in both aqueous and non-aqueous electrochemical cells, including rechargeable lithium batteries
WO2014129971A1 (en) * 2013-02-25 2014-08-28 National University Of Singapore Polyamide single-ion conducting composite polymer electrolyte
CN104183867A (en) * 2014-08-12 2014-12-03 中国科学院青岛生物能源与过程研究所 Preparation method and application of single ion conductor nano-particle reinforced lithium battery diaphragm or polymer electrolyte
CN104183869A (en) * 2014-08-25 2014-12-03 江苏明魁高分子材料技术有限公司 Lithium single ionic conductive microporous electrolyte membrane and preparation method thereof
CN105789531A (en) * 2014-12-25 2016-07-20 杭州聚力氢能科技有限公司 Barrier membrane and preparation method thereof and secondary battery comprising barrier membrane
CN104835966A (en) * 2015-04-30 2015-08-12 奇瑞汽车股份有限公司 Lithium sulfur battery cathode material and preparation method thereof

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
YUBAO SUN等: "("High rate lithium-sulfur battery enabled by sandwiched single ion conducting polymer electrolyte"", 《SCIENTIFIC REPORTS》 *

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2022120129A (en) * 2019-12-03 2022-08-17 ベレノス・クリーン・パワー・ホールディング・アーゲー Single conductive polymers for electrochemical devices
KR20220129515A (en) * 2019-12-03 2022-09-23 벨레노스 클린 파워 홀딩 아게 Single-ion conductive polymers for electrochemical devices
EP3832757A1 (en) * 2019-12-03 2021-06-09 Belenos Clean Power Holding AG Single-ion conductive polymers for electrochemical devices
JP2021088695A (en) * 2019-12-03 2021-06-10 ベレノス・クリーン・パワー・ホールディング・アーゲー Single-ion conductive polymers for electrochemical devices
KR20210070189A (en) * 2019-12-03 2021-06-14 벨레노스 클린 파워 홀딩 아게 Single-ion conductive polymers for electrochemical devices
CN112898457B (en) * 2019-12-03 2023-11-17 巴莱诺斯清洁能源控股公司 Single ion conductive polymer for electrochemical device
CN112898457A (en) * 2019-12-03 2021-06-04 巴莱诺斯清洁能源控股公司 Single ion conducting polymers for electrochemical devices
JP7128877B2 (en) 2019-12-03 2022-08-31 ベレノス・クリーン・パワー・ホールディング・アーゲー Single conducting polymer for electrochemical devices
JP7297127B2 (en) 2019-12-03 2023-06-23 ベレノス・クリーン・パワー・ホールディング・アーゲー Single conducting polymer for electrochemical devices
US11479626B2 (en) 2019-12-03 2022-10-25 Belenos Clean Power Holding Ag Single-ion conductive polymers for electrochemical devices
KR102516919B1 (en) 2019-12-03 2023-03-31 벨레노스 클린 파워 홀딩 아게 Single-ion conductive polymers for electrochemical devices
KR102539814B1 (en) * 2019-12-03 2023-06-02 벨레노스 클린 파워 홀딩 아게 Single-ion conductive polymers for electrochemical devices
CN112382788A (en) * 2020-09-08 2021-02-19 合肥国轩高科动力能源有限公司 Single-ion conductive polymer electrolyte and preparation method and application thereof
CN112382788B (en) * 2020-09-08 2022-04-12 合肥国轩高科动力能源有限公司 Single-ion conductive polymer electrolyte and preparation method and application thereof
JP7373008B2 (en) 2022-03-31 2023-11-01 住友化学株式会社 Alkali metal-containing polymer, and electrolyte composition and battery containing the same

Also Published As

Publication number Publication date
CN108878777B (en) 2020-10-30

Similar Documents

Publication Publication Date Title
CN102208645B (en) Lithium sulfur battery anode composite material, anode and lithium sulfur battery
Deng et al. Gel polymer electrolyte with high performances based on biodegradable polymer polyvinyl alcohol composite lignocellulose
CN101478039B (en) Preparation for polypyrole coated lithium iron phosphate
CN105514350A (en) Lithium ion battery
CN102916195B (en) Graphene-coated copper oxide composite cathode material and method for manufacturing same
CN109167035A (en) Carbon-coated ferrous sulfide negative electrode material, preparation method and its sodium-ion battery of preparation
Jiang et al. Effect of Sn doping on the electrochemical performance of NaTi2 (PO4) 3/C composite
CN108933047A (en) A kind of prelithiation gel electrolyte and preparation method thereof for lithium-ion capacitor
CN109755554A (en) A kind of aluminium selenium secondary cell
CN109244537A (en) Composite solid electrolyte, preparation method and its application
CN102487138B (en) Cathode slurry and preparation method thereof, cathode of lithium ion battery and lithium ion battery
CN106876699A (en) A kind of combination electrode and its preparation and application
CN111725559A (en) Solid electrolyte, method for preparing the same, and lithium secondary solid battery
CN102437369B (en) Lithium ion battery
CN109461906A (en) A kind of preparation method of lithium sulfur battery anode material
CN104183820B (en) A kind of lithium-sulphur cell positive electrode membrane material
CN111952670A (en) Lithium ion battery with wide working temperature range
Yu et al. Single-ion polyelectrolyte/mesoporous hollow-silica spheres, composite electrolyte membranes for lithium-ion batteries
CN108878777A (en) A kind of single-ion conductor polymer lithium-sulfur cell
Gu et al. Preparation of new composite electrolytes for solid-state lithium rechargeable batteries by compounding LiTFSI, PVDF-HFP and LLZTO
JP2012074167A (en) Electrode for lithium ion secondary battery and manufacturing method thereof, and lithium ion secondary battery
Qin et al. Ionic liquid-based electrolyte with dual-functional LiDFOB additive toward high-performance LiMn 2 O 4 batteries
CN104253270A (en) Lithium iron phosphate coated lithium manganate composite electrode material and its preparation method
CN102769148A (en) High-power lithium ion battery electrolyte
CN113363482B (en) Composite binder for silicon-based negative electrode of lithium ion battery and preparation method and application thereof

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
GR01 Patent grant
GR01 Patent grant
TR01 Transfer of patent right

Effective date of registration: 20210525

Address after: 430040 No. 31 Wuhuan Avenue, Dongxihu District, Wuhan City, Hubei Province

Patentee after: Salfa (Wuhan) New Energy Technology Co., Ltd

Address before: 311305 No.6 heting street, Qingshanhu street, Lin'an City, Hangzhou City, Zhejiang Province

Patentee before: INTERGRATED POWER TECHNOLOGY Co.,Ltd.

TR01 Transfer of patent right