CN104716301A - Positive electrode of lithium-sulfur battery and manufacturing method of positive electrode - Google Patents
Positive electrode of lithium-sulfur battery and manufacturing method of positive electrode Download PDFInfo
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- CN104716301A CN104716301A CN201310666575.2A CN201310666575A CN104716301A CN 104716301 A CN104716301 A CN 104716301A CN 201310666575 A CN201310666575 A CN 201310666575A CN 104716301 A CN104716301 A CN 104716301A
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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
- 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
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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
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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
- H01M2004/026—Electrodes composed of, or comprising, active material characterised by the polarity
- H01M2004/028—Positive electrodes
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Abstract
The invention provides a positive electrode of a lithium-sulfur battery and a manufacturing method of the positive electrode. The invention provides the manufacturing method of the positive electrode of the lithium-sulfur battery; alginic acid or alginate is taken as a binder; and a positive electrode active substance and a conductive agent are coated on an aluminium foil current collector. The manufacturing processes comprise: dissolving alginic acid and alginate in water to prepare a solution; adding the positive electrode active substance and the conductive agent into the solution; performing uniform stirring; adjusting the viscosity with water to prepare positive electrode active substance slurry; coating the slurry on an aluminium foil of the current collector; and performing drying to prepare the positive electrode of the lithium-sulfur battery. According to the invention, alginic acid and alginate are taken as the positive electrode binder, and the positive electrode is advantaged in that: (1) the adhesive force between the positive electrode and the current collector is good; (2) expansion and contraction of an electrode material can be buffered; (3) water is used as the solvent, which is clean and environment-friendly; and (4) cost of raw materials is low.
Description
Technical field
The invention belongs to technical field of chemical power, be specifically related to a kind of alginic acid and its esters of adopting as the manufacture method of the positive pole plate of lithium-sulfur cell of binding agent.
Background technology
Along with the fast development of electronic technology, portable electric appts has been widely used in the every field of living.The characteristic that portable set is little, light, thin is had higher requirement to chemical power source energy density aspect.The lithium-sulfur cell electrochemical reaction taking elemental sulfur as positive pole is as follows: S
8+ Li Li
2s
x (1≤
x≤ 8) Li
2s.According to final reduction reaction product Li
2s calculates, and the theoretical specific capacity of elemental sulfur is 1672mAh/g, and lithium metal has theoretical specific capacity 3860mAh/g, and the theoretical energy density of lithium/sulphur redox couple (Li/S) is up to 2600Wh/kg.Lithium-sulfur cell has the advantage of high-energy-density, low cost, therefore becomes the secondary Green Chemistry power supply receiving much attention and drop into more research in recent years.
Grant number is the preparation method that the Chinese patent of CN 101399329 B provides general lithium-sulphur cell positive electrode, comprise: active material, conductive agent are mixed in corresponding solvent to binding agent, then apply on a current collector, by drying except desolventizing, obtain anode pole piece.Binding agent is the key that electrode manufactures success.In lithium-sulfur cell in the past, positive electrode binder mostly is poly(ethylene oxide), polyvinyl alcohol, Kynoar etc.The above two adhesion properties are poor, and the latter need adopt the high boiling solvents such as 1-METHYLPYRROLIDONE, need (>90 DEG C) dry pole piece at relatively high temperatures, very easily cause the distillation of active material sulphur to lose.
Summary of the invention
The problem that the present invention solves is that existing positive pole plate of lithium-sulfur cell performance is bad; For solving described problem, the invention provides a kind of positive pole plate of lithium-sulfur cell and manufacture method thereof.
The manufacture method of a kind of positive pole plate of lithium-sulfur cell provided by the invention, comprising:
Step one, binding agent is dissolved in water, makes solution, described binding agent adopts alginic acid or its esters;
Step 2, positive active material, conductive agent are added described solution, make anode active material slurry;
Step 3, described slurry is coated in collection liquid surface, drying, makes positive pole plate of lithium-sulfur cell.
Further, described alginic acid is linked by α-Isosorbide-5-Nitrae glycosidic bond by guluronic acid and its stereoisomer mannuronic acid, the unbranched linear block copolymers formed.
Further, described alginic acid is the one in sodium alginate, lithium alginate.
Further, the aqueous solution mass concentration of described binding agent is 0.1% ~ 5%.
Further, the material of described positive active material is the one in elemental sulfur, sulphur carbon composite, sulfide.
Further, described conductive agent is one or more in superconduction carbon black, acetylene black, electrically conductive graphite, conductive carbon fibre, carbon nano-tube etc.
Further, the material of described collector is the one in aluminium foil, utter misery aluminium foil, corrosive aluminum foil.
Further, baking temperature is 50 ~ 100 DEG C.
Further, after drying, in positive pole plate of lithium-sulfur cell, the mass ratio of binding agent is 5% ~ 15%, and the mass ratio of conductive agent is 10% ~ 40%.
The present invention also provides the positive pole plate of lithium-sulfur cell formed by method provided by the present invention.
Beneficial effect of the present invention comprises: (1) and collector bonding force are good, and (2) can the Swelling and contraction of buffer electrode material, and (3) take water as solvent, clean environment firendly, (4) low raw-material cost.
Accompanying drawing explanation
Fig. 1 is positive pole plate of lithium-sulfur cell manufacturing process flow diagram of the present invention.
The elemental sulfur anode pole piece first discharge curve of Fig. 2 prepared by embodiments of the invention 1.
The elemental sulfur anode pole piece cycle performance curve of Fig. 3 prepared by embodiments of the invention 1.
The sulphur of Fig. 4 prepared by embodiments of the invention 2/carbon composite anode pole piece discharge curve first.
The sulphur of Fig. 5 prepared by embodiments of the invention 2/carbon composite anode pole piece cycle performance curve.
The sulfide polymer anode pole piece first discharge curve of Fig. 6 prepared by embodiments of the invention 3.
The sulfide polymer anode pole piece cycle performance curve of Fig. 7 prepared by embodiments of the invention 3.
Embodiment
Below in conjunction with drawings and Examples, the present invention will be described in detail.
In lithium-sulfur cell, the discharging product of sulphur finally forms lithium sulfide Li
2s.Bulk density (the 2.03g/cm of sulphur
3) compare Li
2(the 1.67g/cm of S
3) about exceeding 20%, the positive pole sulphur of lithium-sulfur cell is similar to silicon, also there is certain volumetric expansion problem.Therefore also to consider that electrode structure can bear or cushion the Swelling and contraction problem caused by charge and discharge process in the process that prepared by electrode.
Inventor, through research, provides a kind of positive pole plate of lithium-sulfur cell and manufacture method thereof in the present invention.
The manufacture method of a kind of positive pole plate of lithium-sulfur cell provided by the invention, comprising:
Step one, binding agent is dissolved in water, makes solution, described binding agent adopts alginic acid or its esters;
Step 2, positive active material, conductive agent are added described solution, make anode active material slurry;
Step 3, described slurry is coated in collection liquid surface, drying, makes positive pole plate of lithium-sulfur cell.
Wherein, alginic acid is the natural polymer be present in brown algae, it is the natural polysaccharide extracted from brown alga or bacterium, be made up of guluronic acid (being designated as G section) and its stereoisomer mannuronic acid (being designated as M section) two kinds of construction units, these two kinds of construction units in three ways (MM section, GG section and MG section) by α-1,4 glycosidic bond links, thus form a kind of unbranched linear block copolymers.Alginic acid is easy to be combined with some bivalent cations, forms gel.When the carboxyl on its 6 is combined with sodium ion, just constitute alginic acid sodium salt.
The material of described positive active material is the one in elemental sulfur, sulphur carbon composite, sulfide.
Described conductive agent is one or more in superconduction carbon black, acetylene black, electrically conductive graphite, conductive carbon fibre, carbon nano-tube etc.
The material of described collector is the one in aluminium foil, utter misery aluminium foil, corrosive aluminum foil.
After drying, in positive pole plate of lithium-sulfur cell, the mass ratio of binding agent is 5% ~ 15%, and the mass ratio of conductive agent is 10% ~ 40%.
Embodiment 1
Prepared by binding agent: take 0.2g sodium alginate, be dissolved in 10g water, and stir and form homogeneous solution, compound concentration is the sodium alginate aqueous solution of 2%.
Prepared by sulphur positive pole: add in above-mentioned 2% sodium alginate aqueous solution after taking 0.3g superconduction carbon black (Super P) and 0.3g superconduction carbon black (XE-2) mixing respectively, fully stir the suspension-turbid liquid that 1h forms black even; Then take 1.2g elemental sulfur powder (100 order) to add in above-mentioned suspension-turbid liquid, add water adjusting viscosity and fully stir the stable slurry suspension-turbid liquid of formation.Adopt scraper to be coated on corrosive aluminum foil collector by this slurry, 60 DEG C of dryings 0.5 hour, until moisture volatilizees completely, obtain sulphur anode pole piece.Active material in pole piece after dry: conductive agent: binding agent=60:30:10.
Sulphur positive discharge performance test: the circular pole piece sulphur positive pole of preparation being die-cut into Φ 14mm, dries 24 hours in the vacuum drying chamber of 50 DEG C.Under dry air or inert atmosphere conditions; take metal lithium sheet as negative pole; Tonen V20EHD is barrier film; two (trifluoromethane sulfonic acid acyl group) imine lithium (the LiTFSI)/dioxolanes (DOL)+1 of 1.2mol/L; 2-dimethoxy-ethane (DME) (volume ratio is 1:1) is electrolyte, is assembled into CR2016 button lithium-sulfur cell.Battery is with 50mA/(g active material) current density be discharged to 1.5V, discharge curve is as shown in Figure 2 first.Through calculating, this sulphur positive pole first discharge specific capacity is 1117mAh/(g sulphur).The cycle performance curve of this sulphur positive pole as shown in Figure 3.After using sodium alginate binding agent, elemental sulfur has reversible capacity, can normal charge and discharge cycles.With 50mA/(g active material between 1.5 ~ 2.5V) the current density capacity after 30 times that circulates be 495mAh/(g sulphur).
Embodiment 2
Prepared by binding agent: take 0.2g sodium alginate, be dissolved in 10g water, and stir and form homogeneous solution, compound concentration is the sodium alginate aqueous solution of 2%.
Prepared by sulphur positive pole: add in above-mentioned 2% sodium alginate aqueous solution after taking 0.2g superconduction carbon black (Super P) mixing respectively, fully stirs the suspension-turbid liquid that 1h forms black even; Then take 1.6g sulphur/carbon composite to add in above-mentioned suspension-turbid liquid, add water adjusting viscosity and fully stir the stable slurry suspension-turbid liquid of formation.Adopt scraper to be coated on corrosive aluminum foil collector by this slurry, 60 DEG C of dryings 0.5 hour, until moisture volatilizees completely, obtain sulphur anode pole piece.Active material in pole piece after dry: conductive agent: binding agent=80:10:10.
Sulphur positive discharge performance test: the circular pole piece sulphur positive pole of preparation being die-cut into Φ 14mm, dries 24 hours in the vacuum drying chamber of 50 DEG C.Under dry air or inert atmosphere conditions; take metal lithium sheet as negative pole; Tonen V20EHD is barrier film; two (trifluoromethane sulfonic acid acyl group) imine lithium (the LiTFSI)/dioxolanes (DOL)+1 of 1.2mol/L; 2-dimethoxy-ethane (DME) (volume ratio is 1:1) is electrolyte, is assembled into CR2016 button lithium-sulfur cell.Battery is with 50mA/(g active material) current density be discharged to 1.5V, discharge curve is as shown in Figure 4 first.Through calculating, this sulphur positive pole first discharge specific capacity is 1188mAh/(g sulphur).The cycle performance curve of this sulphur positive pole as shown in Figure 5.After using sodium alginate binding agent, sulphur/carbon composite has reversible capacity, can normal charge and discharge cycles.With 50mA/(g active material between 1.5 ~ 2.5V) the current density capacity after 30 times that circulates be 618 mAh/(g sulphur).
Embodiment 3
Prepared by binding agent: take 0.2g sodium alginate, be dissolved in 10g water, and stir and form homogeneous solution, compound concentration is the sodium alginate aqueous solution of 2%.
Prepared by sulphur positive pole: add in above-mentioned 2% sodium alginate aqueous solution after taking 0.3g superconduction carbon black (Super P) and 0.3g conductive carbon black (Ketjen black EC300) mixing respectively, fully stir the suspension-turbid liquid that 1h forms black even; Then take 1.2g sulfurized polyacrylonitrile composite material to add in above-mentioned suspension-turbid liquid, add water adjusting viscosity and fully stir the stable slurry suspension-turbid liquid of formation.Adopt scraper to be coated in carbon aluminum foil current collector by this slurry, 60 DEG C of dryings 0.5 hour, until moisture volatilizees completely, obtain sulphur anode pole piece.Active material in pole piece after dry: conductive agent: binding agent=60:30:10.
Sulphur positive discharge performance test: the circular pole piece sulphur positive pole of preparation being die-cut into Φ 14mm, dries 24 hours in the vacuum drying chamber of 50 DEG C.Under dry air or inert atmosphere conditions, take metal lithium sheet as negative pole, Tonen V20EHD is barrier film, 1.2mol/L lithium hexafluoro phosphate (LiPF
6)/ethylene carbonate (EC)+diethyl carbonate (DEC)+methyl ethyl carbonate (EMC) (volume ratio is 1:1:1) is electrolyte, is assembled into CR2016 button lithium-sulfur cell.Battery is with 50mA/(g active material) current density be discharged to 1.0V, discharge curve is as shown in Figure 6 first.Through calculating, this sulphur positive pole first discharge specific capacity is 935mAh/(g composite material).The cycle performance curve of this sulphur positive pole as shown in Figure 7.After using sodium alginate binding agent, sulfurized polyacrylonitrile has reversible capacity, can normal charge and discharge cycles.With 50mA/(g active material between 1.0 ~ 2.5V) the current density capacity after 30 times that circulates be 593mAh/(g composite material).
Embodiment 4
Prepared by binding agent: take 0.2g alginic acid, be dissolved in 10g water, and stir and form homogeneous solution, compound concentration is the alginic acid aqueous solution of 2%.
Prepared by sulphur positive pole: add in the above-mentioned 2% alginic acid aqueous solution after taking the mixing of 0.3g superconduction carbon black (Super P), 0.1g electrically conductive graphite (ks6) and 0.2g conductive carbon fibre (VGCF) respectively, fully stirs the suspension-turbid liquid that 1h forms black even; Then take 1.2g elemental sulfur powder (100 order) to add in above-mentioned suspension-turbid liquid, add water adjusting viscosity and fully stir the stable slurry suspension-turbid liquid of formation.Adopt scraper to be coated in aluminum foil current collector by this slurry, 60 DEG C of dryings 0.5 hour, until moisture volatilizees completely, obtain sulphur anode pole piece.Active material in pole piece after dry: conductive agent: binding agent=60:30:10.
Sulphur positive discharge performance test: the circular pole piece sulphur positive pole of preparation being die-cut into Φ 14mm, dries 24 hours in the vacuum drying chamber of 50 DEG C.Under dry air or inert atmosphere conditions; take metal lithium sheet as negative pole; Tonen V20EHD is barrier film; two (trifluoromethane sulfonic acid acyl group) imine lithium (the LiTFSI)/dioxolanes (DOL)+1 of 1.2mol/L; 2-dimethoxy-ethane (DME) (volume ratio is 1:1) is electrolyte, is assembled into CR2016 button lithium-sulfur cell.Battery is with 50mA/(g active material) current density be discharged to 1.5V, through calculating, this sulphur positive pole first discharge specific capacity is 1066mAh/(g sulphur).With 50mA/(g active material between 1.5 ~ 2.5V) the current density capacity after 12 times that circulates be 562mAh/(g sulphur).
Embodiment 5
Prepared by binding agent: take 0.3g lithium alginate, be dissolved in 10g water, and stir and form homogeneous solution, compound concentration is the lithium alginate aqueous solution of 3%.
Prepared by sulphur positive pole: add in the above-mentioned 3% lithium alginate aqueous solution after taking the mixing of 0.5g superconduction carbon black (Super P), 0.2g electrically conductive graphite (ks6) and 0.2g conductive carbon fibre (VGCF) respectively, fully stirs the suspension-turbid liquid that 1h forms black even; Then take 1.8g elemental sulfur powder (100 order) to add in above-mentioned suspension-turbid liquid, add water adjusting viscosity and fully stir the stable slurry suspension-turbid liquid of formation.Adopt scraper to be coated in carbon aluminum foil current collector by this slurry, 60 DEG C of dryings 0.5 hour, until moisture volatilizees completely, obtain sulphur anode pole piece.Active material in pole piece after dry: conductive agent: binding agent=60:30:10.
Sulphur positive discharge performance test: the circular pole piece sulphur positive pole of preparation being die-cut into Φ 14mm, dries 24 hours in the vacuum drying chamber of 50 DEG C.Under dry air or inert atmosphere conditions; take metal lithium sheet as negative pole; Tonen V20EHD is barrier film; two (trifluoromethane sulfonic acid acyl group) imine lithium (the LiTFSI)/dioxolanes (DOL)+1 of 1.2mol/L; 2-dimethoxy-ethane (DME) (volume ratio is 1:1) is electrolyte, is assembled into CR2016 button lithium-sulfur cell.Battery is with 50mA/(g active material) current density be discharged to 1.5V, through calculating, this sulphur positive pole first discharge specific capacity is 1005mAh/(g sulphur).With 50mA/(g active material between 1.5 ~ 2.5V) current density circulate circulate for 15 times after capacity be 556mAh/(g sulphur).
Although the present invention with preferred embodiment openly as above; but it is not for limiting the present invention; any those skilled in the art without departing from the spirit and scope of the present invention; the Method and Technology content of above-mentioned announcement can be utilized to make possible variation and amendment to technical solution of the present invention; therefore; every content not departing from technical solution of the present invention; the any simple modification done above embodiment according to technical spirit of the present invention, equivalent variations and modification, all belong to the protection range of technical solution of the present invention.
Claims (10)
1. a manufacture method for positive pole plate of lithium-sulfur cell, is characterized in that, comprising:
Step one, binding agent is dissolved in water, makes solution, described binding agent adopts alginic acid or its esters;
Step 2, positive active material, conductive agent are added described solution, make anode active material slurry;
Step 3, described slurry is coated in collection liquid surface, drying, makes positive pole plate of lithium-sulfur cell.
2. according to the manufacture method of positive pole plate of lithium-sulfur cell according to claim 1, it is characterized in that, described alginic acid is linked by α-Isosorbide-5-Nitrae glycosidic bond by guluronic acid and its stereoisomer mannuronic acid, the unbranched linear block copolymers formed.
3. according to the manufacture method of positive pole plate of lithium-sulfur cell according to claim 1, it is characterized in that, described alginic acid is the one in sodium alginate, lithium alginate.
4. according to the manufacture method of positive pole plate of lithium-sulfur cell according to claim 1, it is characterized in that, the aqueous solution mass concentration of described binding agent is 0.1% ~ 5%.
5. according to the manufacture method of positive pole plate of lithium-sulfur cell according to claim 1, it is characterized in that, the material of described positive active material is the one in elemental sulfur, sulphur carbon composite, sulfide.
6. according to the manufacture method of positive pole plate of lithium-sulfur cell according to claim 1, it is characterized in that, described conductive agent is one or more in superconduction carbon black, acetylene black, electrically conductive graphite, conductive carbon fibre, carbon nano-tube etc.
7. according to the manufacture method of positive pole plate of lithium-sulfur cell according to claim 1, it is characterized in that, the material of described collector is the one in aluminium foil, utter misery aluminium foil, corrosive aluminum foil.
8. according to the manufacture method of positive pole plate of lithium-sulfur cell according to claim 1, it is characterized in that, baking temperature is 50 ~ 100 DEG C.
9. according to the manufacture method of positive pole plate of lithium-sulfur cell according to claim 1, it is characterized in that, after drying, in positive pole plate of lithium-sulfur cell, the mass ratio of binding agent is 5% ~ 15%, and the mass ratio of conductive agent is 10% ~ 40%.
10. adopt the positive pole plate of lithium-sulfur cell that the positive pole plate of lithium-sulfur cell manufacture method that in claim 1 to 9, any one provides obtains.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105406075A (en) * | 2015-11-24 | 2016-03-16 | 青岛能迅新能源科技有限公司 | Modified sulfur positive electrode nanometer paste of lithium sulfur battery, preparation method of modified sulfur positive electrode nanometer paste, and preparation method for modified sulfur positive electrode plate of lithium sulfur battery |
| CN105428620A (en) * | 2015-11-24 | 2016-03-23 | 青岛能迅新能源科技有限公司 | Superconducting composite adhesive electrode paste, preparation method of superconducting composite adhesive electrode paste and preparation method of electrode slice of sulfur anode of superconducting lithium-sulfur battery |
| CN105913893A (en) * | 2016-04-25 | 2016-08-31 | 西南科技大学 | Method for treating radioactive organic waste liquid by means of electrochemical degradation method |
| CN106169561A (en) * | 2016-09-30 | 2016-11-30 | 上海空间电源研究所 | A kind of sulfur system anode composite pole piece, the battery comprising it and preparation method thereof |
| CN107910535A (en) * | 2017-11-22 | 2018-04-13 | 哈尔滨工业大学 | A kind of preparation method of the high carrying capacity sulfur electrode of fibre reinforced |
| CN108888862A (en) * | 2018-06-29 | 2018-11-27 | 成都三乙医疗科技有限公司 | A kind of physiotherapy electrode plate |
| CN112802988A (en) * | 2019-11-13 | 2021-05-14 | 中国科学院大连化学物理研究所 | Electrode with chromatographic membrane structure for lithium-sulfur battery and application thereof |
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| CN103346281A (en) * | 2013-07-17 | 2013-10-09 | 中国科学院青岛生物能源与过程研究所 | Sodium alginate-based lithium battery diaphragm and preparation method thereof |
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| CN103247822A (en) * | 2012-02-14 | 2013-08-14 | 中国科学院物理研究所 | Lithium-sulfur secondary battery system |
| CN103346281A (en) * | 2013-07-17 | 2013-10-09 | 中国科学院青岛生物能源与过程研究所 | Sodium alginate-based lithium battery diaphragm and preparation method thereof |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105406075A (en) * | 2015-11-24 | 2016-03-16 | 青岛能迅新能源科技有限公司 | Modified sulfur positive electrode nanometer paste of lithium sulfur battery, preparation method of modified sulfur positive electrode nanometer paste, and preparation method for modified sulfur positive electrode plate of lithium sulfur battery |
| CN105428620A (en) * | 2015-11-24 | 2016-03-23 | 青岛能迅新能源科技有限公司 | Superconducting composite adhesive electrode paste, preparation method of superconducting composite adhesive electrode paste and preparation method of electrode slice of sulfur anode of superconducting lithium-sulfur battery |
| CN105913893A (en) * | 2016-04-25 | 2016-08-31 | 西南科技大学 | Method for treating radioactive organic waste liquid by means of electrochemical degradation method |
| CN106169561A (en) * | 2016-09-30 | 2016-11-30 | 上海空间电源研究所 | A kind of sulfur system anode composite pole piece, the battery comprising it and preparation method thereof |
| CN106169561B (en) * | 2016-09-30 | 2019-06-25 | 上海空间电源研究所 | A kind of sulphur system anode composite pole piece includes its battery and preparation method thereof |
| CN107910535A (en) * | 2017-11-22 | 2018-04-13 | 哈尔滨工业大学 | A kind of preparation method of the high carrying capacity sulfur electrode of fibre reinforced |
| CN108888862A (en) * | 2018-06-29 | 2018-11-27 | 成都三乙医疗科技有限公司 | A kind of physiotherapy electrode plate |
| CN112802988A (en) * | 2019-11-13 | 2021-05-14 | 中国科学院大连化学物理研究所 | Electrode with chromatographic membrane structure for lithium-sulfur battery and application thereof |
| CN112802988B (en) * | 2019-11-13 | 2022-05-31 | 中国科学院大连化学物理研究所 | Electrode with chromatographic membrane structure for lithium-sulfur battery and application thereof |
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