CN108365172A - A kind of lithium an- ode material and its preparation method and application of natural polymers protection - Google Patents
A kind of lithium an- ode material and its preparation method and application of natural polymers protection Download PDFInfo
- Publication number
- CN108365172A CN108365172A CN201810141170.XA CN201810141170A CN108365172A CN 108365172 A CN108365172 A CN 108365172A CN 201810141170 A CN201810141170 A CN 201810141170A CN 108365172 A CN108365172 A CN 108365172A
- Authority
- CN
- China
- Prior art keywords
- lithium
- natural polymers
- copper foil
- ode
- preparation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- 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
- H01M4/134—Electrodes based on metals, Si or alloys
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- 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
- H01M4/1395—Processes of manufacture of electrodes based on metals, Si or alloys
-
- 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 discloses a kind of lithium an- ode materials and its preparation method and application of natural polymers protection; including a copper foil; the coated with uniform of the copper foil has natural polymers layer; there is a lithium metal sedimentary to be located at copper foil in the intersection of natural polymers layer simultaneously, deposition is 2~8mAh/cm2, above-mentioned natural polymers include agarose, Luo Wang seeds glue and sodium alginate.The lithium an- ode material of the natural polymers protection of the present invention has good cycle performance, and the deposition of the lithium metal without dendrite, improves the cycle life of lithium metal.Preparation method of the present invention compares current surface coating layer construction method, have it is significant simple for process, the advantages of being easy to large-scale production and can effectively inhibit lithium branch crystals growth.
Description
Technical field
The invention belongs to electrochemical energy system technical fields, and in particular to a kind of lithium of natural polymers protection
Metal negative electrode material.
Background technology
With the continuous consumption of fossil energy, and social clean energy resource consciousness, environmental-friendly and sustainable development tourism
Deepen continuously, the demand of the split green-emitting energy and energy-storage system is also increasingly urgent to.In recent years, with mobile device, power
The rapid development in the fields such as automobile, capacity and energy density to lithium ion battery have higher requirement.Currently, lithium-ion electric
Pond commercialization negative material mostly uses graphite cathode, but since its lower theoretical capacity (374mAh/g) can no longer meet lithium
Requirement of the ion battery to high-energy density.Lithium an- ode is because with specific capacity high (3860mAh/g), minimum redox
Current potential (- 3.04V, relative to standard hydrogen electrode) and be considered as the optimal negative material of lithium ion battery.However, lithium metal
A series of problems is also faced in charge and discharge process.Wherein problem the severeest is the continuous growth of metal Li dendrite,
Which results in a series of problems：(1) the continuous growth of Li dendrite is easy breaking solid dielectric film (SEI films), aggravation and electricity
Solve liquid between side reaction and lithium metal interface it is unstable.(2) Li dendrite is easy to happen fracture in cyclic process, causes big
The generation for measuring dead lithium reduces battery coulombic efficiency.(3) the continuous growth of Li dendrite, which is be easy to cause, punctures diaphragm, causes battery
Internal short-circuit, there are very big security risks.
For these problems, scientific research personnel has carried out a large amount of beneficial research work, it is proposed that corresponding solution,
Include mainly：(1) three-dimensional porous carrier is built to disperse charge density, such as graphitized carbon fibre, reduced form graphene, titanium-
Carbon/carbon core-shell nano line etc.；(2) addition electrolysis additive is to homogenize the deposition of lithium metal, such as LiNO3, fluoro carbonic acid
Vinyl acetate (FEC), CsFP6Deng；(3) lithium metal protective layer is built, such as Li3PO4、LiF、Li3N etc..Utilize these protective layers
The features such as macroion conductance, high elastic modulus, hinders the continuous growth of metal Li dendrite.
Relatively conventional lithium metal Preservation tactics mostly use the three-dimensional porous frame material of structure at present, accommodate lithium metal and
The purpose of dispersion charge can be played.But to be faced with production cost higher for this method, it is difficult to the problem of large-scale application.Separately
Outside, lithium metal protective layer is also common lithium metal Preservation tactics, and document report is mostly directly in metallic lithium surface original at present
Position growth protecting layer, but since there is lithium metal strong reactivity to cause growth in situ difficult, harshness is required to reaction condition,
Which also limits the actual uses of this method.
Invention content
The purpose of the present invention is to provide a kind of lithium an- ode materials of natural polymers protection.
Another object of the present invention is to provide the systems of the lithium an- ode material of above-mentioned natural polymers protection
Preparation Method.
It is still another object of the present invention to provide answering for the lithium an- ode material of above-mentioned natural polymers protection
With.
Technical scheme is as follows：
A kind of lithium an- ode material of natural polymers protection, including a copper foil, the surface of the copper foil are uniform
It is coated with natural polymers layer, while there is a lithium metal sedimentary to be located at copper foil in natural polymers layer
Intersection, deposition are 2~8mAh/cm2, above-mentioned natural polymers include agarose, Luo Wang seeds glue and alginic acid
Sodium.
In a preferred embodiment of the invention, the thickness of the natural polymers layer is 0.5~3 μm.
The preparation method of above-mentioned lithium an- ode material, includes the following steps：
(1) natural polymers are added to the water, are completely dissolved, obtain the natural polymer of a concentration of 1~5wt%
Polymer solution；
(2) above-mentioned natural polymers solution is evenly applied on copper foil, then in 70~80 DEG C of vacuum dryings 8
~12h obtains the copper current collector with protective layer；
(3) above-mentioned copper current collector, diaphragm and metal lithium sheet are combined into half-cell, are placed in electrolyte, in 0.5~2mA/
2~8mAh/cm of uniform deposition under the current density of cm22Lithium metal to get the lithium an- ode material.
In a preferred embodiment of the invention, in the electrolyte with the bis- trifluoromethanesulfonic acid lithiums of 0.4~0.5M and
The lithium nitrate of 0.4~0.5M is conductive salt, and solvent is the mixing that DME and DOL is formed with 0.8~1.2: 0.8~1.2 volume ratio
Solvent.
It is further preferred that using the lithium nitrate of the bis- trifluoromethanesulfonic acid lithiums of 0.5M and 0.5M as conductive salt in the electrolyte,
Solvent is the mixed solvent that DME and DOL is formed with 1: 1 volume ratio.
In a preferred embodiment of the invention, the diaphragm is 2400 diaphragms of Celgard.
Cathode is made with above-mentioned lithium an- ode material in a kind of battery.
The beneficial effects of the invention are as follows：
1, the lithium an- ode material of natural polymers of the invention protection has good cycle performance, and
The lithium metal of no dendrite deposits, and improves the cycle life of lithium metal.
2, preparation method of the present invention compares current surface coating layer construction method, has significant simple for process, is easy to advise
The advantages of modelling produces and can effectively inhibit lithium branch crystals growth.
Description of the drawings
Fig. 1 is the tensile strength figure of agarose film, wherein abscissa is extensibility/%, and ordinate is pressure/MPa.
Fig. 2 is 180 ° of stripping figures of agarose film, wherein abscissa is strip length/mm, and ordinate is power/N.
Fig. 3 is 1 gained lithium an- ode of the embodiment of the present invention (AG-Cu@Li) and pure copper foil (Cu@Li) in 0.5mA/cm2
Under the conditions of voltage-time graph, wherein abscissa be time/h, ordinate be voltage/mV.
Fig. 4 is 1 gained lithium an- ode of the embodiment of the present invention (AG-Cu@Li) and pure copper foil (Cu@Li) in 1mA/cm2Item
Voltage-time graph under part, wherein abscissa is time/h, and ordinate is voltage/mV.
Fig. 5 is 1 gained lithium an- ode of the embodiment of the present invention (AG-Cu@Li) and pure copper foil (Cu@Li) in 2mA/cm2Item
Voltage-time graph under part, wherein abscissa is time/h, and ordinate is voltage/mV.
Fig. 6 is 1 gained lithium an- ode of the embodiment of the present invention (AG-Cu@Li) and pure copper foil (Cu@Li) in 1mA/cm2,
Coulombic efficiency figure under 1mAh/cm2, wherein abscissa is the cycle number of turns, and ordinate is coulombic efficiency/%.
Fig. 7 is 1 gained lithium an- ode of the embodiment of the present invention (AG-Cu@Li) following as positive electrode with LiFePO4
Ring performance, wherein abscissa is the cycle number of turns, and ordinate is specific capacity/mAh/g.
Fig. 8 is times of the 1 gained lithium an- ode of the embodiment of the present invention (AG-Cu@Li) with LiFePO4 as positive electrode
Rate performance map, wherein abscissa is the cycle number of turns, and ordinate is specific capacity/mAh/g.
Fig. 9 be 1 gained pure copper foil of the embodiment of the present invention (Cu@Li) (figure a, b) and lithium an- ode (AG-Cu@Li) (scheme c,
D) the scanning electron microscope sem figure after 100 circle cycles.
Figure 10 is 1 gained pure copper foil of the embodiment of the present invention (Cu@Li) (figure a) and lithium an- ode (AG-Cu@Li) (figure b)
In the atomic force microscope figure after 100 circle cycles.
Figure 11 is the structural formula of Luo Wang seed glue.
Figure 12 is 2 gained lithium an- ode of the embodiment of the present invention (TSP-Cu@Li) and pure copper foil (Cu@Li) in 0.5mA/
cm2Under the conditions of voltage-time graph, wherein abscissa be time/h, ordinate be voltage/mV.
Figure 13 is 2 gained lithium an- ode of the embodiment of the present invention (TSP-Cu@Li) and pure copper foil (Cu@Li) in 1mA/cm2
Under the conditions of voltage-time graph, wherein abscissa be time/h, ordinate be voltage/mV.
Figure 14 is 2 gained lithium an- ode of the embodiment of the present invention (TSP-Cu@Li) and pure copper foil (Cu@Li) in 2mA/cm2
Under the conditions of voltage-time graph, wherein abscissa be time/h, ordinate be voltage/mV.
Figure 15 is 2 gained lithium an- ode of the embodiment of the present invention (TSP-Cu@Li) and pure copper foil (Cu@Li) in 1mA/cm2,
1mAh/cm2Under coulombic efficiency figure, wherein abscissa be cycle the number of turns, ordinate be coulombic efficiency/%.
Figure 16 is 2 gained lithium an- ode of the embodiment of the present invention (TSP-Cu@Li) and LiFePO4 as positive electrode
Cycle performance, wherein abscissa is the cycle number of turns, and ordinate is specific capacity/mAh/g.
Figure 17 is 3 gained lithium an- ode of the embodiment of the present invention (SA-Cu@Li) and pure copper foil (Cu@Li) in 1mA/cm2Item
Voltage-time graph under part, wherein abscissa is time/h, and ordinate is voltage/mV.
Specific implementation mode
Technical scheme of the present invention is further detailed and is described below by way of specific implementation mode combination attached drawing.
Embodiment 1
(1) agarose is added to the water, in 95 DEG C of stirred in water bath until all dissolving, obtains the fine jade of a concentration of 5wt%
Lipolysaccharide solution；The structural formula of above-mentioned agarose is
(2) by above-mentioned agarose solution, uniformly blade coating, then in 80 DEG C of vacuum drying 10h, obtains band and protects in pure copper foil
The copper current collector of sheath (thickness be 0.5~3 μm), the tensile strength of above-mentioned protective layer and 180 ° of peel results respectively such as Fig. 1 and
Shown in Fig. 2；
(3) above-mentioned copper current collector, 2400 diaphragms of Celgard and metal lithium sheet are combined into half-cell, are placed in electrolyte
In, in 0.5mA/cm2Current density under uniform deposition 4mAh/cm2Lithium metal to get AG-Cu@Li lithium an- odes, electrolysis
Using the lithium nitrate of the bis- trifluoromethanesulfonic acid lithiums of 0.5M and 0.5M as conductive salt in liquid, solvent is DME and DOL with 1: 1 volume ratio group
At mixed solvent.
1, lithium an- ode cyclical stability is tested
Copper current collector made from step (2) is placed in glove box, is that 2025 type button electricity are assembled into electrode with lithium piece
Pond.The lithium nitrate that electrolyte is the bis- trifluoromethanesulfonic acid lithium+0.5M of 0.5M is DME: DOL (1: 1 v/v) solution of conductive salt.By group
The battery seal of dress, static 5h.By assembled battery, chemical property is tested in constant current on charge-discharge test instrument, is existed first
0.5-2mA/cm2Current density under pre-deposition 2-8mA/cm2Lithium metal, then fix lithium metal deposition/meltage be
1mAh/cm2, respectively with 0.5mA/cm2、1mA/cm2、2mA/cm2Current density carry out charge-discharge test, test result such as Fig. 3
Shown in Fig. 5.
2, lithium an- ode coulombic efficiency is tested
Copper current collector made from step (2) is placed in glove box, is that 2025 type button electricity are assembled into electrode with lithium piece
Pond.The lithium nitrate that electrolyte is the bis- trifluoromethanesulfonic acid lithium+0.5M of 0.5M is DME: DOL (1: 1 v/v) solution of conductive salt.By group
The battery seal of dress, static 5h.By assembled battery, chemical property is tested in constant current on charge-discharge test instrument, is existed first
0.05mA/cm2Current density under, under the charge and discharge section of 0-1V it is preactivated 5 circle to stablize SEI films, then with 1mA/
cm2Deposit 1mAh/cm2Lithium metal, then lithium is carried out for 0.5V with blanking voltage and deviates from lithium metal, with the capacity of the lithium metal of abjection
Ratio with the lithium metal content of deposition is as coulombic efficiency, and test results are shown in figure 6.
3, full battery is tested
Copper current collector made from step (2) is placed in glove box, is that 2025 type button electricity are assembled into electrode with lithium piece
Pond.The lithium nitrate that electrolyte is the bis- trifluoromethanesulfonic acid lithium+0.5M of 0.5M is DME: DOL (1: 1 v/v) solution of conductive salt.By group
The battery seal of dress, static 5h.By assembled battery, chemical property is tested in constant current on charge-discharge test instrument, is existed first
0.5mA/cm2Current density under pre-deposition 4mA/cm2Lithium metal.Post-depositional lithium anode is dismantled in glove box, with
DME is cleaned up and is dried, and then using LiFePO4 as positive electrode, is reassembled into 2025 type button cells.Full battery
The electrolyte of test is EC: DMC: EMC (1: 1: 1 v/v/v) solution that 1M lithium hexafluoro phosphates are conductive salt.By assembled electricity
Chemical property is tested in pond constant current on charge-discharge test instrument.Wherein charging or discharging current density is set according to experimental design, voltage model
It is trapped among 2.8-4.2, test result is as shown in Figure 7 and Figure 8.
4, morphology characterization
Cu@Li and AG-Cu@Li will be used for negative material, lithium piece as the battery to electrode by 1mA/cm2,
It is dismantled in glove box after 100 circle of cycle under 1mAh/cm2, Cu@Li and AG- after being used in combination the washing of DME solvents to be recycled several times
Cu@Li cathode.The lithium an- ode of gained is observed the lithium an- ode and is existed using scanning electron microscope microscope and atomic force microscope
Pattern after cycle, as a result as shown in Figure 9 and Figure 10.
Embodiment 2
(1) Luo Wang seeds glue (TSP) is added to the water, magnetic agitation obtains sieve of a concentration of 2wt% until all dissolvings
Hope seed sol solution；The structural formula of above-mentioned Luo Wang seeds glue is as shown in figure 11,
(2) by above-mentioned Luo Wang seeds sol solution, uniformly blade coating, then in 80 DEG C of vacuum drying 10h, is obtained in pure copper foil
Copper current collector with protective layer (thickness is 0.5~3 μm)；
(3) above-mentioned copper current collector, 2400 diaphragms of Celgard and metal lithium sheet are combined into half-cell, are placed in electrolyte
In, in 0.5mA/cm2Current density under uniform deposition 4mAh/cm2Lithium metal to get TSP-Cu@Li lithium an- odes, electricity
It solves in liquid using the lithium nitrate of the bis- trifluoromethanesulfonic acid lithiums of 0.5M and 0.5M as conductive salt, solvent is DME and DOL with 1: 1 volume ratio
The mixed solvent of composition.
Lithium an- ode material circulation stability (result is as shown in Figure 12 to 14), coulombic efficiency (result in the present embodiment
As shown in figure 15) and full battery cyclical stability tests (result such as Figure 16) method with embodiment 1.
Embodiment 3
(1) sodium alginate (SA) is added to the water, magnetic agitation obtains the seaweed of a concentration of 2wt% until all dissolvings
Acid sodium solution；The structural formula of above-mentioned sodium alginate is
(2) by above-mentioned sodium alginate soln, uniformly blade coating, then in 80 DEG C of vacuum drying 10h, obtains band in pure copper foil
The copper current collector of protective layer (thickness is 0.5~3 μm)；
(3) above-mentioned copper current collector, Celgard2400 diaphragms and metal lithium sheet are combined into half-cell, are placed in electrolyte,
In 0.5mA/cm2Current density under uniform deposition 4mAh/cm2Lithium metal to get SA-Cu@Li lithium an- odes, electrolyte
In using the lithium nitrate of the bis- trifluoromethanesulfonic acid lithiums of 0.5M and 0.5M as conductive salt, solvent is that DME and DOL are formed with 1: 1 volume ratio
Mixed solvent.
Lithium an- ode material circulation stability approach is with embodiment 1 in the present embodiment, as a result as shown in figure 17.
The foregoing is only a preferred embodiment of the present invention, therefore cannot limit the scope of implementation of the present invention according to this, i.e.,
According to equivalent changes and modifications made by the scope of the claims of the present invention and description, all should still belong in the range of the present invention covers.
Claims (7)
1. a kind of lithium an- ode material of natural polymers protection, it is characterised in that：Including a copper foil, the copper foil
Coated with uniform has natural polymers layer, while it is poly- in natural polymer that there is a lithium metal sedimentary to be located at copper foil
The intersection of nitride layer is closed, deposition is 2~8mAh/cm2, above-mentioned natural polymers include agarose, Luo Wang seed glue
And sodium alginate.
2. lithium an- ode material as described in claim 1, it is characterised in that：The thickness of the natural polymers layer
It is 0.5~3 μm.
3. the preparation method of lithium an- ode material as claimed in claim 1 or 2, it is characterised in that：Include the following steps：
(1) natural polymers are added to the water, are completely dissolved, obtain the natural polymer polymerization of a concentration of 1~5wt%
Object solution；
(2) above-mentioned natural polymers solution is evenly applied on copper foil, then in 70~80 DEG C of vacuum dryings 8~
12h obtains the copper current collector with protective layer；
(3) above-mentioned copper current collector, diaphragm and metal lithium sheet are combined into half-cell, are placed in electrolyte, in 0.5~2mA/cm2's
2~8mAh/cm of uniform deposition under current density2Lithium metal to get the lithium an- ode material.
4. preparation method as claimed in claim 3, it is characterised in that：With the bis- trifluoro methylsulphurs of 0.4~0.5M in the electrolyte
The lithium nitrate of sour lithium and 0.4~0.5M are conductive salt, and solvent is that DME and DOL is formed with 0.8~1.2: 0.8~1.2 volume ratio
Mixed solvent.
5. preparation method as claimed in claim 4, it is characterised in that：In the electrolyte with the bis- trifluoromethanesulfonic acid lithiums of 0.5M and
The lithium nitrate of 0.5M is conductive salt, and solvent is the mixed solvent that DME and DOL is formed with 1: 1 volume ratio.
6. preparation method as claimed in claim 3, it is characterised in that：The diaphragm is 2400 diaphragms of Celgard.
7. a kind of battery, it is characterised in that：Cathode is made with lithium an- ode material as claimed in claim 1 or 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810141170.XA CN108365172A (en) | 2018-02-10 | 2018-02-10 | A kind of lithium an- ode material and its preparation method and application of natural polymers protection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810141170.XA CN108365172A (en) | 2018-02-10 | 2018-02-10 | A kind of lithium an- ode material and its preparation method and application of natural polymers protection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108365172A true CN108365172A (en) | 2018-08-03 |
Family
ID=63005717
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810141170.XA Pending CN108365172A (en) | 2018-02-10 | 2018-02-10 | A kind of lithium an- ode material and its preparation method and application of natural polymers protection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108365172A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109167063A (en) * | 2018-08-15 | 2019-01-08 | 广东工业大学 | A kind of lithium anode and its preparation method and application of artificial solid electrolyte interface layer protection |
| CN109449376A (en) * | 2018-12-20 | 2019-03-08 | 国联汽车动力电池研究院有限责任公司 | A kind of compound metal lithium electrode and preparation method thereof |
| CN109817894A (en) * | 2019-02-28 | 2019-05-28 | 厦门大学 | A kind of lithium metal battery cathode and its preparation method and application |
| CN113991054A (en) * | 2021-10-29 | 2022-01-28 | 洛阳储变电***有限公司 | Lithium-free negative plate for lithium battery and lithium battery |
| CN116154141A (en) * | 2023-04-17 | 2023-05-23 | 河北坤天新能源股份有限公司 | Silicon-carbon negative electrode material with watermelon-like structure and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104716381A (en) * | 2013-12-15 | 2015-06-17 | 中国科学院大连化学物理研究所 | Method for protecting negative electrode of lithium sulfur battery |
| CN106340616A (en) * | 2016-09-30 | 2017-01-18 | 上海空间电源研究所 | Lithium cathode used for lithium battery and provided with sandwich structure and preparation method thereof |
| CN106711430A (en) * | 2016-12-27 | 2017-05-24 | 中南大学 | Production method of lithium/carbon fiber or porous carbon paper/copper foil composite negative electrode used for lithium-sulfur battery |
-
2018
- 2018-02-10 CN CN201810141170.XA patent/CN108365172A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104716381A (en) * | 2013-12-15 | 2015-06-17 | 中国科学院大连化学物理研究所 | Method for protecting negative electrode of lithium sulfur battery |
| CN106340616A (en) * | 2016-09-30 | 2017-01-18 | 上海空间电源研究所 | Lithium cathode used for lithium battery and provided with sandwich structure and preparation method thereof |
| CN106711430A (en) * | 2016-12-27 | 2017-05-24 | 中南大学 | Production method of lithium/carbon fiber or porous carbon paper/copper foil composite negative electrode used for lithium-sulfur battery |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109167063A (en) * | 2018-08-15 | 2019-01-08 | 广东工业大学 | A kind of lithium anode and its preparation method and application of artificial solid electrolyte interface layer protection |
| CN109449376A (en) * | 2018-12-20 | 2019-03-08 | 国联汽车动力电池研究院有限责任公司 | A kind of compound metal lithium electrode and preparation method thereof |
| CN109817894A (en) * | 2019-02-28 | 2019-05-28 | 厦门大学 | A kind of lithium metal battery cathode and its preparation method and application |
| CN113991054A (en) * | 2021-10-29 | 2022-01-28 | 洛阳储变电***有限公司 | Lithium-free negative plate for lithium battery and lithium battery |
| CN113991054B (en) * | 2021-10-29 | 2024-03-01 | 洛阳储变电***有限公司 | Lithium-free negative plate for lithium battery and lithium battery |
| CN116154141A (en) * | 2023-04-17 | 2023-05-23 | 河北坤天新能源股份有限公司 | Silicon-carbon negative electrode material with watermelon-like structure and preparation method thereof |
| CN116154141B (en) * | 2023-04-17 | 2023-06-23 | 河北坤天新能源股份有限公司 | Silicon-carbon negative electrode material with watermelon-like structure and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107226475B (en) | Potassium ion battery positive electrode material, preparation method thereof and potassium ion battery | |
| CN108365172A (en) | A kind of lithium an- ode material and its preparation method and application of natural polymers protection | |
| CN102394305B (en) | Foamy copper oxide/copper lithium ion battery anode and preparation method thereof | |
| CN109103399B (en) | Functional diaphragm for lithium-sulfur battery, preparation method of functional diaphragm and application of functional diaphragm in lithium-sulfur battery | |
| CN105489814B (en) | A kind of preparation method of lithium-sulfur cell modified diaphragm, modified diaphragm and the lithium-sulfur cell with the multilayer modified diaphragm | |
| Sun et al. | A gradient topology host for a dendrite-free lithium metal anode | |
| CN107808944A (en) | Porous MOF/CNFs composites for lithium anode protection | |
| Jiang et al. | In situ growth of CuO submicro-sheets on optimized Cu foam to induce uniform Li deposition and stripping for stable Li metal batteries | |
| CN102867940B (en) | Process for preparing lithium sulfur battery modified anode | |
| CN108394884A (en) | A kind of preparation method of chitosan-based high-specific surface area nitrogen/phosphor codoping carbon nanosheet | |
| CN102916195B (en) | Graphene-coated copper oxide composite cathode material and method for manufacturing same | |
| CN110071284A (en) | The guard method of metal lithium electrode | |
| CN107959006A (en) | A kind of lignin-base hard carbon/carbon nano tube compound material and preparation method thereof and the application in lithium ion battery negative material | |
| CN106229498A (en) | A kind of negative material being applicable to Water based metal ion battery and preparation method thereof | |
| CN108808080B (en) | Nano composite gel electrolyte, lithium secondary battery and preparation method thereof | |
| CN108258241A (en) | A kind of cathode of lithium battery for inhibiting lithium dendrite growth using ZIF-8 porous carbon materials | |
| CN107221661A (en) | A kind of preparation method of graphite negative material of lithium ion battery | |
| CN107248569A (en) | Using the methylimidazole cdicynanmide of 1 ethyl 3 antimony made from carbon source/nitrogen-doped carbon compound and its preparation method and application | |
| CN108123141A (en) | A kind of three-dimensional porous foams grapheme material and its application | |
| CN107879323A (en) | A kind of hard carbon material and its preparation method and application | |
| CN110085864A (en) | The preparation method and application of potassium or based lithium-ion battery positive plate | |
| CN109935813A (en) | A kind of preparation method and application of novel cathode material for lithium ion battery | |
| CN109216674A (en) | Prussian blue@graphite lithium battery composite positive pole of high-performance and preparation method thereof | |
| CN108288702A (en) | The preparation and application of sisal fiber base three-dimensional carbon nanosheet/molybdenum disulfide/polyaniline multilevel structure material | |
| CN110350146B (en) | Modified three-dimensional porous antimony electrode, preparation method and application |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180803 |
|
| RJ01 | Rejection of invention patent application after publication |