CN106981686A - A kind of secondary cell using identical both positive and negative polarity active material - Google Patents
A kind of secondary cell using identical both positive and negative polarity active material Download PDFInfo
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/058—Construction or manufacture
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- 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
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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
- H01M4/136—Electrodes based on inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
- H01M4/139—Processes of manufacture
- H01M4/1397—Processes of manufacture of electrodes based on inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The invention discloses a kind of secondary cell using identical both positive and negative polarity active material, belong to electrochemical energy storage technical field.The present invention is using with the material of different Reversible redox reactions occurs in different potentials, while being used as the both positive and negative polarity active material of secondary cell.The present invention can be effectively used for metal oxide and metal sulfide changed with multivalent state etc..Present invention process process is simple and compatible with existing process simultaneously, can effectively simplify production, the matching flow of electrode material, therefore with great application prospect.
Description
Technical field:
The present invention relates to electrochemical energy storage technical field, and in particular to a kind of identical both positive and negative polarity active material of use
Secondary cell.
Background technology:
Since 18th century, the change of energy occupation mode has greatly promoted the development and progress of human society.In order to full
The demand of the various fields such as foot future electric automobile, fuel combination automobile, electric power, communication, all kinds of novel portable electronic products,
It is most important that safe, environment-friendly, with low cost, high performance electrochemical energy storing device is stablized in exploitation.Secondary cell is because having
Higher energy storage density and the advantages of can recycle, is one of most potential electrochemical energy storing device.
In charge and discharge process, the redox reaction that positive and negative electrode material occurs respectively carries out electric energy and chemical energy
Mutually conversion, is the working foundation of secondary cell.According to Nernst equation, occurs Ji Bu required during different redox reactions
This free energy is different, therefore the operating potential of Different electrodes material is different, and such as lithium ion battery is used as negative electrode active using graphite
Material, cobalt acid lithium is as positive electrode, in charge and discharge process, and graphite is in 0.01V (vs.Li/Li+) reactCobalt acid lithium is in 3.7V (vs.Li/Li+) react
The design and production of commercialization secondary cell are, it is necessary to match different both positive and negative polarity active material (matching operating potential, appearances at present
Amount, quality etc.), then respectively carry out both positive and negative polarity active material production, the preparation of positive and negative electrode, finally again by positive and negative electrode,
Barrier film is assembled into battery with electrolyte.
What development and electrochemical reaction mechanism in recent years, with electrode material technology of preparing was studied deepens continuously, part
Electrode material (having metal oxide, metal sulfide, graphite of multivalent state change etc.) is interval in the stable potential of electrolyte
Inside it is found to have many electro-chemical activities, you can so that different Reversible redox reactions to occur under different potentials：Graphite can
In 0.01V (vs.Li/Li+) occur the deintercalation reaction of lithium ion, in 5V (vs.Li/Li+) occur the deintercalation reaction of anion；It is many
The metal oxide of variation of valence, such as Na0.8Ni0.4Ti0.6O2, can be in 0.75V (vs.Li/Li+) occur oxidation-reduction pair Ti4 +/Ti3+Reaction, in 3.5V (vs.Li/Li+) occur oxidation-reduction pair Ni2+/Ni4+Reaction；Metal sulfide can be<
1.5V(vs.Li/Li+) reaction that changes forms metal nanoparticle and lithium sulfide, in 2.4V (vs.Li/Li+) vulcanize
The conversion reaction of lithium and sulphur.Because different Reversible redox reactions can occur under different potentials for such material, therefore
Research staff wishes a kind of secondary cell with identical positive and negative pole material of design, effectively by the use of such electrode material and meanwhile as
Both positive and negative polarity active material, so as to simplify production procedure, development cost is cheap, high performance novel secondary battery.
The content of the invention：
It is an object of the invention to provide a kind of secondary cell using identical both positive and negative polarity active material, pass through electrochemistry electricity
Lotus is injected to be regulated and controled to the electrochemical reaction and OCP of electrode material, realizes that same electrode material can both make positive pole
Make negative pole again, so as to construct novel secondary battery.
To achieve the above object, the technical solution adopted in the present invention is as follows：
A kind of secondary cell using identical both positive and negative polarity active material, the secondary cell preparation process is：First will be identical
Both positive and negative polarity active material be prepared as electrode, the identical both positive and negative polarity active material be refer to occur in different potentials it is different
The active material (active material) of Reversible redox reaction；Then it regard prepared electrode as working electrode, lithium piece conduct
To electrode and reference electrode, while adding electrolyte, the method injected by electrochemical charge, the electrochemistry to working electrode is anti-
Answer and OCP is regulated and controled, respectively obtain with the positive pole and negative pole for stablizing chemical property；Finally it is assembled into described adopt
With the secondary cell of identical both positive and negative polarity active material.
In the secondary cell preparation process, the method injected by electrochemical charge to the electrochemical reaction of working electrode and
OCP is regulated and controled, and is respectively obtained to have and is stablized the positive pole of chemical property and comprising the following steps that for negative pole：
(1) electrochemical charge injection method prepares negative pole：The process that electrochemical charge injection method prepares negative pole is cut by control
Only voltage and cycle-index carry out the adjustment of electrode electro Chemical activity；Specially：Selecting electrode material first can be in different potentials
In the different redox reactions that interval occurs, the more negative redox reaction potential region of relative potentials is used as negative pole workspace
Between；Electrode is then subjected to constant current charge-discharge circulation in the negative pole operation interval, so that electrode material is in the negative pole operation interval
It is interior to occur reversible redox reaction (activity for carrying out " activation " redox reaction), and reduce (" sharp during the course of the reaction
It is living " during) irreversible reaction that produces, so as to improve the coulombic efficiency and cyclical stability of the secondary cell finally assembled；Most
In the different redox reactions that coordination electrode current potential can occur less than electrode material in different potentials interval afterwards, relative potentials calibration
Redox reaction potential region, and make electrode material be in negative pole electric discharge state, so as to avoid both positive and negative polarity OCP not
Match and influence is produced on the secondary cell finally assembled；The step is illustrated using metal sulfide as active material：It is first right
Electrode material carries out " activation " and handles that (Activiation method is：When voltage range is 0.01~1.4V (vs.Li/Li+), cycle-index
For 40 times when, electrode have stablizes reversible negative electrode activeWith
Afterwards by electrode in 1.4V (vs.Li/Li+) constant pressure, obtain negative pole.
(2) electrochemical charge injection method prepares positive pole：The process that electrochemical charge injection method prepares positive pole is by control
Blanking voltage and cycle-index carry out the adjustment of electrode electro Chemical activity；Specially：Selecting electrode material first can be in difference
In the different redox reactions that potential region occurs, the redox reaction potential region of relative potentials calibration is used as positive pole
Operation interval；Electrode is then subjected to constant current charge-discharge circulation in the positive pole operation interval, so that electrode material is in the positive pole
Reversible redox reaction (activity for carrying out " activation " redox reaction) occurs in operation interval, and reduction was being reacted
The irreversible reaction produced in journey (during " activation "), so as to improve coulombic efficiency and the circulation of the secondary cell finally assembled
Stability；In the different redox reactions that last coordination electrode current potential can occur higher than electrode material in different potentials interval,
The more negative redox reaction potential region of relative potentials, and make electric discharge state of the electrode material in positive pole, so as to avoid positive and negative
Pole OCP is mismatched produces influence to the secondary cell finally assembled；The step is entered using metal sulfide as active material
Row explanation：" activation " is first carried out to electrode material and handles that (Activiation method is：When voltage range is 1.7V~3.1V (vs.Li/Li+), when cycle-index is 20 times, electrode, which has, stablizes reversible positive-activeThen electrode is existed
1.7V(vs.Li/Li+) constant pressure, obtain positive pole.
(after electrochemical charge injection is handled, divided after acquisition has and stablizes the positive pole and negative pole of chemical property
Not Ju You positive and negative potential region activity both positive and negative polarity), carry out secondary cell assembling, process is：By positive pole, barrier film and negative pole (lithium
Piece) progress lamination assembling formation sandwich structure is arranged in order, it is packaged, that is, is obtained using identical positive and negative after injecting electrolyte
The secondary cell of pole active material.The positive and negative electrode of gained secondary cell uses identical electrode material.
The electrolyte can be aqueous electrolyte (such as aqueous sulfuric acid, potassium hydroxide aqueous solution and lithium salts, sylvite, sodium
Neutral aqueous solution of salt etc.), organic electrolyte (such as perchlorate, tetrafluoroborate, hexafluorophosphate or trifluoromethyl sulfonic acid
Deng solution in organic solvent) or various ionic liquids etc.；The organic solvent is propylene carbonate, ethylene carbonate, carbon
Acid propylene ester, methyl ethyl carbonate, methyl propyl carbonate, dimethyl carbonate, diethyl carbonate, dimethylformamide, sulfolane, second
One or more in nitrile, 1,3- dioxolanes, 1,2- dimethoxy-ethanes and 1,4- butyrolactone etc..
It is described to occur the active material of different Reversible redox reactions for graphite, with multivalent state in different potentials
The metal oxide and/or metal sulfide of change；Wherein：Described is MnO with the metal oxide that multivalent state changes2、
V2O5、LiMn2O4、LiNi0.5Mn1.5O4、Li3V2(PO4)3、Na3V2(PO4)3And Na0.8Ni0.4Ti0.6O2In one or more；Institute
It is the one or more in molybdenum sulfide, cobalt sulfide, iron sulfide, copper sulfide, nickel sulfide to state metal sulfide.
Working electrode before battery assembling is made as common process, i.e.,：By active electrode material, binding agent and conductive agent
Dispensing, coating, tabletting and section is carried out successively to obtain.
Design principle of the present invention is as follows：
The present invention is theoretical with Ji Genhaimu (Guggemheim) according to Nernst equation：Electrode material occurs with electrolyte
Can faraday's reaction spontaneous be carried out, depending on the chemical potential and electrode potential of the electrochemical potential of electrode material, i.e. electrode material.
The method injected by electrochemical charge is (referring to the application for a patent for invention (denomination of invention of Application No. 201310093023.7：One
Plant the method for realizing super capacitor energy very dense)), electrode potential is can control, so as to realize the electricity to electrode material
Chemical reaction and state are regulated and controled.
Advantages of the present invention and have the beneficial effect that：
1st, a kind of secondary cell for using identical both positive and negative polarity active material that the present invention is designed has popularity.The present invention can
Material for various many electro-chemical activities, you can so that different Reversible redox reactions to occur under different potentials.
2nd, a kind of secondary cell using identical both positive and negative polarity active material that the present invention is designed, can simplify the life of electrode material
Produce flow.
3rd, a kind of secondary cell preparation technology using identical both positive and negative polarity active material that the present invention is designed is simple, difference batch
Secondary repeatability is strong, it is easy to extensive amplification production.
Brief description of the drawings：
The use metal sulfide that Fig. 1 designs for the present invention is while the preparation of the secondary cell as both positive and negative polarity active material
Method schematic diagram.
Fig. 2 is to be illustrated simultaneously as the secondary cell positive and negative electrode activity of both positive and negative polarity active material using metal sulfide
Figure；After regulation and control, negative electrode active material is LixMS, in potential region 0.01V~1.4V (vs.Li/Li+) change reactionAnd the electric double layer absorption of metal nanoparticle.After regulation and control,
Positive active material is Li2S, in potential region 1.7V~3.1V (vs.Li/Li+) change reaction
Fig. 3 is the chemical property of molybdenum sulfide positive and negative electrode；In figure：(a) regulation and control after cure molybdenum negative pole constant current charge-discharge is bent
Line；(b) after cure molybdenum negative pole stability is regulated and controled；(c) after cure molybdenum positive pole constant current charge-discharge curve is regulated and controled；(d) sulphur after regulating and controlling
Change molybdenum stability of anode energy.
Fig. 4 is cobalt sulfide positive and negative electrode constant current charge-discharge curve；In figure：(a) regulation and control after cure cobalt negative pole constant current charge-discharge is bent
Line；(b) after cure cobalt positive pole constant current charge-discharge curve is regulated and controled.
Fig. 5 is molybdenum sulfide symmetric form battery performance；In figure：(a) molybdenum sulfide symmetric form battery constant current charging-discharging is bent
Line (three-electrode system, reference electrode is lithium piece)；(b) stability of molybdenum sulfide symmetric form battery.
Embodiment:
The present invention is illustrated with reference to embodiment.
One kind of the design of the present invention uses the secondary cell of identical both positive and negative polarity active material (by taking metal sulfide as an example)
Production technology is as schemed shown in (1)：Using metal sulfide as working electrode, lithium piece is assembled into as to electrode and reference electrode
Half-cell；Electrochemical charge injection is carried out to electrode, both positive and negative polarity is respectively obtained (with specific reference to step (2), step (3)).It will adjust
The both positive and negative polarity obtained after control, symmetric form battery is assembled into according to the order of negative pole, barrier film, positive pole.
Embodiment 1
Working electrode (70wt.% molybdenum sulfides, 20wt.% conductive additives, the mixing of 10wt.% binding agents are used as using molybdenum sulfide
Coating stainless steel collector is applied after uniform), lithium piece carries out electrochemical charge injection as to electrode and reference electrode to vulcanization molybdenum electrode
Processing.During electrochemical charge injection prepares negative pole, using ethers electrolyte (1M LiTFSI+DOL/DME+2%LiNO3),
Carrying out constant current charge-discharge processing to vulcanization molybdenum electrode, (potential region is 0.01V~1.4V (vs.Li/Li+), circulate 40 times), constant pressure
To 1.4V (vs.Li/Li+) the molybdenum sulfide negative pole stablized.Molybdenum sulfide negative pole is in potential region 0.01V~1.4V (vs.Li/Li+)
Interior electro-chemical activity reacts as shown in schematic diagram 2And metal
The electric double layer absorption of nano particle.Cathode specific capacity after regulation and control is 210mAh/g, with good cyclical stability, coulomb effect
Rate 99% (such as Fig. 3 (a)-(b)).
During electrochemical charge injection processing prepares positive pole, using lipid electrolyte (1M LiPF6+EC/DEC),
By molybdenum sulfide electrode discharge to 0.01V (vs.Li/Li+), charge to 1.4V (vs.Li/Li+), electrode is then transferred to ethers
(1M LiTFSI+DOL/DME+2%LiNO in electrolyte3), carrying out constant current charge-discharge processing, (potential region is 1.7V~3.1V
(vs.Li/Li+), circulate 20 times), constant pressure to 1.7V (vs.Li/Li+) the molybdenum sulfide positive pole stablized, as shown in the figure 3 (c) institute
Show, the molybdenum sulfide after regulation and control has electro-chemical activity.Molybdenum sulfide positive pole is in potential region 1.7V~3.1V (vs.Li/Li+) in
Electrochemical reaction process reacts as shown in schematic diagram 2Positive electrode specific capacity after regulation and control is
150mAh/g, with good cyclical stability, coulombic efficiency 99.8% (such as Fig. 3 (c)-(d)).
Embodiment 2
Using cobalt sulfide as working electrode, (70wt.% molybdenum sulfides, 20wt.% conductive additives, 10wt.% binding agents are mixed
Close uniform rear painting coating stainless steel collector), lithium piece carries out electrochemical charge as to electrode and reference electrode to vulcanization cobalt electrode
Injection is handled.During electrochemical charge injection processing prepares negative pole, using ethers electrolyte (1M LiTFSI+DOL/
DME+2%LiNO3), carrying out constant current charge-discharge processing to vulcanization molybdenum electrode, (potential region is 0.01V~1.6V (vs.Li/Li+)), constant pressure to 1.6V vs.Li/Li+The molybdenum sulfide negative pole stablized.Molybdenum sulfide negative pole has electrochemistry work in potential region
Property, specific capacity is 104mAh/g.
During electrochemical charge injection processing prepares positive pole, using lipid electrolyte (1M LiPF6+EC/DEC),
By cobalt sulfide electrode discharge to 0.9V (vs.Li/Li+), charge to 1.5V (vs.Li/Li+), electrode is then transferred to ethers electricity
Solve (1M LiTFSI+DOL/DME+2%LiNO in liquid3), carrying out constant current charge-discharge processing, (potential region is 1.5V~2.8V
(vs.Li/Li+)), constant pressure to 1.5V (vs.Li/Li+) the cobalt sulfide positive pole stablized.As shown in the figure shown in 4, after regulation and control
Cobalt sulfide has electro-chemical activity, and specific capacity is 90mAh/g.
Embodiment 3
By the molybdenum sulfide positive and negative electrode obtained after electrochemical pre-treatment, successively according to negative pole, barrier film, positive pole order group
Fill as symmetric form battery that (mass ratio is 4:7), electrolyte is ethers electrolyte (1M LiTFSI+DOL/DME+2%LiNO3).Through
After after cyclic activation first, the charging and discharging curve of molybdenum sulfide symmetric form battery as shown in figure 5, operating voltage is 0.3V~2.8V,
Both positive and negative polarity is respectively in the interval work of respective activity, with good stability.
Claims (7)
1. a kind of secondary cell using identical both positive and negative polarity active material, it is characterised in that：The secondary cell preparation process is：
Identical both positive and negative polarity active material is prepared as electrode first, the identical both positive and negative polarity active material is referred to not
The active material of different Reversible redox reactions occurs with current potential；Then it regard prepared electrode as working electrode, lithium piece
As to electrode and reference electrode, while adding electrolyte, the method injected by electrochemical charge, to the electrification of working electrode
Learn reaction and OCP is regulated and controled, respectively obtain with the positive pole and negative pole for stablizing chemical property；Finally it is assembled into institute
State the secondary cell using identical both positive and negative polarity active material.
2. the secondary cell according to claim 1 using identical both positive and negative polarity active material, it is characterised in that：The secondary electricity
In the preparation process of pond, the method injected by electrochemical charge is adjusted to the electrochemical reaction and OCP of working electrode
Control, respectively obtains to have and stablizes the positive pole of chemical property and comprising the following steps that for negative pole：
(1) electrochemical charge injection method prepares negative pole：The process that electrochemical charge injection method prepares negative pole is by controlling cut-off
Voltage and cycle-index carry out the adjustment of electrode electro Chemical activity；Specially：Electrode material is selected first in different potentials area
Between in the different redox reactions that occur, the more negative redox reaction potential region of relative potentials is used as negative pole workspace
Between；Electrode is then subjected to constant current charge-discharge circulation in the negative pole operation interval, so that electrode material is in the negative pole workspace
It is interior to occur reversible redox reaction, and the irreversible reaction produced during the course of the reaction is reduced, so as to improve final group
The coulombic efficiency and cyclical stability of the secondary cell of dress；Last coordination electrode current potential is interval in different potentials less than electrode material
In the different redox reactions of generation, the redox reaction potential region of relative potentials calibration, and it is in electrode material
The electric discharge state of negative pole, so that avoid both positive and negative polarity OCP from mismatching produces influence to the secondary cell finally assembled；
(2) electrochemical charge injection method prepares positive pole：The process that electrochemical charge injection method prepares positive pole is by controlling cut-off
Voltage and cycle-index carry out the adjustment of electrode electro Chemical activity；Specially：Electrode material is selected first in different potentials area
Between in the different redox reactions that occur, the redox reaction potential region of relative potentials calibration is used as positive pole workspace
Between；Electrode is then subjected to constant current charge-discharge circulation in the positive pole operation interval, so that electrode material is in the positive pole workspace
It is interior to occur reversible redox reaction, and the irreversible reaction produced during the course of the reaction is reduced, so as to improve final group
The coulombic efficiency and cyclical stability of the secondary cell of dress；Last coordination electrode current potential is interval in different potentials higher than electrode material
In the different redox reactions of generation, the more negative redox reaction potential region of relative potentials, and it is in electrode material
The electric discharge state of positive pole, so that avoid both positive and negative polarity OCP from mismatching produces influence to the secondary cell finally assembled.
3. the secondary cell according to claim 1 or 2 using identical both positive and negative polarity active material, it is characterised in that：Obtain
With after the positive pole and negative pole of stablizing chemical property, positive pole, barrier film and negative pole are arranged in order progress lamination assembling formation three
Mingzhi's structure, and be packaged in sandwich structure after injection electrolyte, that is, obtain using the secondary of identical positive and negative pole material
Battery.
4. the secondary cell of the identical both positive and negative polarity active material of use according to claim 1 or 3, it is characterised in that：It is described
Electrolyte is aqueous electrolyte, organic electrolyte or ionic liquid；The aqueous electrolyte is aqueous sulfuric acid, potassium hydroxide water
Solution is neutral aqueous solution of lithium salts, sylvite and/or sodium salt etc.；The organic electrolyte is perchlorate, tetrafluoro boric acid
The solution in organic solvent such as salt, hexafluorophosphate or trifluoromethyl sulfonic acid；The organic solvent is propylene carbonate, carbon
Vinyl acetate, propene carbonate, methyl ethyl carbonate, methyl propyl carbonate, dimethyl carbonate, diethyl carbonate, dimethylformamide,
One or more in sulfolane, acetonitrile, 1,3- dioxolanes, 1,2- dimethoxy-ethanes and 1,4- butyrolactone etc..
5. the secondary cell according to claim 1 using identical both positive and negative polarity active material, it is characterised in that：It is described can
Occurs the metal oxide that the active material of different Reversible redox reactions changes for graphite, with multivalent state in different potentials
And/or metal sulfide；Wherein：Described is MnO with the metal oxide that multivalent state changes2、V2O5、LiMn2O4、
LiNi0.5Mn1.5O4、Li3V2(PO4)3、Na3V2(PO4)3And Na0.8Ni0.4Ti0.6O2In one or more；The metal vulcanization
Thing is the one or more in molybdenum sulfide, cobalt sulfide, iron sulfide, copper sulfide, nickel sulfide.
6. the secondary cell according to claim 1 or 2 using identical both positive and negative polarity active material, it is characterised in that：Battery
The manufacture craft of working electrode before assembling is：Active electrode material, binding agent and conductive agent are entered successively using common process
Row dispensing, coating, tabletting and section are obtained.
7. the secondary cell according to claim 1 using identical both positive and negative polarity active material, it is characterised in that：It is described secondary
The positive and negative electrode of battery uses identical electrode material.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108447698A (en) * | 2018-03-12 | 2018-08-24 | 中国科学院长春应用化学研究所 | A kind of electrode and preparation method thereof, the renewable storing up electricity device of high energy |
| CN108511671A (en) * | 2018-03-12 | 2018-09-07 | 中国科学院长春应用化学研究所 | A kind of flexible electrode and preparation method thereof, it is huge can flexible instant storing up electricity device processed |
| CN109768329A (en) * | 2018-12-04 | 2019-05-17 | 湖北大学 | The construction method of mixed aquo-lithium ion battery system based on cobalt acid lithium and active carbon |
| CN113138345A (en) * | 2021-03-22 | 2021-07-20 | 万向一二三股份公司 | Method for evaluating performance of lithium ion battery by using symmetric battery |
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| CN108447698A (en) * | 2018-03-12 | 2018-08-24 | 中国科学院长春应用化学研究所 | A kind of electrode and preparation method thereof, the renewable storing up electricity device of high energy |
| CN108511671A (en) * | 2018-03-12 | 2018-09-07 | 中国科学院长春应用化学研究所 | A kind of flexible electrode and preparation method thereof, it is huge can flexible instant storing up electricity device processed |
| CN108447698B (en) * | 2018-03-12 | 2021-04-06 | 中国科学院长春应用化学研究所 | Electrode, preparation method thereof and high-energy renewable electricity storage device |
| CN108511671B (en) * | 2018-03-12 | 2021-04-06 | 中国科学院长春应用化学研究所 | Flexible electrode, preparation method thereof and giant-energy flexible instant-use electric storage device |
| CN109768329A (en) * | 2018-12-04 | 2019-05-17 | 湖北大学 | The construction method of mixed aquo-lithium ion battery system based on cobalt acid lithium and active carbon |
| CN109768329B (en) * | 2018-12-04 | 2021-12-10 | 太原科技大学 | Construction method of mixed type water system lithium ion battery system based on lithium cobaltate and active carbon |
| CN113138345A (en) * | 2021-03-22 | 2021-07-20 | 万向一二三股份公司 | Method for evaluating performance of lithium ion battery by using symmetric battery |
| CN113138345B (en) * | 2021-03-22 | 2023-08-15 | 万向一二三股份公司 | Method for evaluating performance of lithium ion battery by using symmetrical battery |
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