CN107425176A - A kind of all-solid lithium-ion battery and preparation method thereof - Google Patents
A kind of all-solid lithium-ion battery and preparation method thereof Download PDFInfo
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- CN107425176A CN107425176A CN201710552000.6A CN201710552000A CN107425176A CN 107425176 A CN107425176 A CN 107425176A CN 201710552000 A CN201710552000 A CN 201710552000A CN 107425176 A CN107425176 A CN 107425176A
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- 239000007787 solid Substances 0.000 title claims abstract description 163
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 title claims abstract description 40
- 229910001416 lithium ion Inorganic materials 0.000 title claims abstract description 40
- 238000002360 preparation method Methods 0.000 title claims abstract description 13
- 239000003792 electrolyte Substances 0.000 claims abstract description 64
- 239000011248 coating agent Substances 0.000 claims abstract description 47
- 238000000576 coating method Methods 0.000 claims abstract description 47
- 239000000178 monomer Substances 0.000 claims abstract description 34
- 238000009413 insulation Methods 0.000 claims abstract description 19
- 239000002131 composite material Substances 0.000 claims description 13
- 230000000694 effects Effects 0.000 claims description 4
- 239000011261 inert gas Substances 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 3
- 238000004804 winding Methods 0.000 claims description 3
- 239000010410 layer Substances 0.000 claims 12
- 239000011247 coating layer Substances 0.000 claims 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 15
- 229910052744 lithium Inorganic materials 0.000 description 15
- 239000010408 film Substances 0.000 description 10
- 238000004519 manufacturing process Methods 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 230000015572 biosynthetic process Effects 0.000 description 5
- 238000005520 cutting process Methods 0.000 description 5
- 230000005611 electricity Effects 0.000 description 5
- 238000003786 synthesis reaction Methods 0.000 description 5
- 238000000151 deposition Methods 0.000 description 4
- 230000008021 deposition Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 238000005868 electrolysis reaction Methods 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 238000001755 magnetron sputter deposition Methods 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 238000005118 spray pyrolysis Methods 0.000 description 2
- 239000010409 thin film Substances 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000009510 drug design Methods 0.000 description 1
- 239000007772 electrode material Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- 239000007784 solid electrolyte Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
Classifications
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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
-
- 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
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/056—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes
- H01M10/0561—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes the electrolyte being constituted of inorganic materials only
- H01M10/0562—Solid materials
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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
- H01M10/056—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes
- H01M10/0564—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes the electrolyte being constituted of organic materials only
- H01M10/0565—Polymeric materials, e.g. gel-type or solid-type
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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
- H01M10/0587—Construction or manufacture of accumulators having only wound construction elements, i.e. wound positive electrodes, wound negative electrodes and wound separators
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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
- H01M2300/00—Electrolytes
- H01M2300/0017—Non-aqueous electrolytes
- H01M2300/0065—Solid electrolytes
- H01M2300/0068—Solid electrolytes inorganic
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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
- H01M2300/00—Electrolytes
- H01M2300/0017—Non-aqueous electrolytes
- H01M2300/0065—Solid electrolytes
- H01M2300/0082—Organic polymers
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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Abstract
The invention discloses a kind of all-solid lithium-ion battery and preparation method thereof.All-solid lithium-ion battery includes shell, insulation diaphragm and solid union electrode cores, and the solid union electrode cores comprise at least one group of monomer solid-state combination electrode piece；The monomer solid-state combination electrode piece includes the first all solid state electrolyte layer, cathode pole piece, the second all solid state electrolyte layer and anode pole piece；The cathode pole piece has A faces active coating and B faces active coating；The first all solid state electrolyte layer is located on the active coating of A faces, and the second all solid state electrolyte layer is located on the active coating of B faces；The anode pole piece is located at the second all solid state electrolyte layer；The solid union electrode cores put insulation diaphragm and are encapsulated into shell.It has the following advantages that：All-solid lithium-ion battery uses double-deck all solid state electrolyte layer and the Combination Design of both positive and negative polarity and electrolyte, can meet all-solid lithium-ion battery of different shapes is manufactured the needs of.
Description
Technical field
The present invention relates to a kind of all-solid lithium-ion battery and preparation method thereof.
Background technology
In the electrokinetic cell investment tide of a new round, solid lithium battery is turning into global lithium power technology of future generation
" new lover ".
Solid lithium battery is divided into polymer solid lithium battery and inorganic full-solid lithium battery.For solid lithium battery
Research manufacture, lithium battery producer both domestic and external also strongly pursues frivolous new light thin lithium battery.Solid lithium battery
Mainly include positive pole, solid electrolyte and negative pole three parts, compared with the liquid lithium with positive pole, negative pole, electrolyte and film
Ion battery, all-solid lithium-ion battery constructively more simplify.
In the prior art, the research of solid lithium battery is also at sky all in laboratory stage, its industrialization technology
In vain.The application number 200510028248.X of Fudan University, a kind of entitled preparing solid thin-membrane lithium battery by in-situ deposition are set
Standby and method, it is composed in series using four deposition film rooms and a glove box, and different films are respectively in four different chambers
Prepared in room, manufacturing process flow is complicated, and film deposition rate is low.Patent No. ZL201110212694.1, patent name：It is a kind of double
Layer film all solid-state thin-film lithium battery spray pyrolysis cell manufacturing method, it proposes to pass through in positive pole solid state electrolysis using double spray guns
Matter layer and negative electrode layer part of having a common boundary spray the precursor aqueous solutions of two layers so as to form the full solid thin film lithium ion of cushion simultaneously
Battery spray pyrolysis manufacture method, then can not even application dielectric substrate.
The content of the invention
The invention provides a kind of all-solid lithium-ion battery and preparation method thereof, which overcomes solid-state lithium in background technology
Deficiency present in ion battery.
The present invention solve its technical problem used technical scheme be：
A kind of all-solid lithium-ion battery, including shell, insulation diaphragm and solid union electrode cores, the solid union electricity
Pole piece comprises at least one group of monomer solid-state combination electrode piece (9)；It is all solid state that the monomer solid-state combination electrode piece (9) includes first
Dielectric substrate (1), cathode pole piece (7), the second all solid state electrolyte layer (5) and anode pole piece (6)；Cathode pole piece (7) tool
There is two-sided active coating, the two-sided active coating is respectively A faces active coating (2) and B faces active coating (4)；It is described
First all solid state electrolyte layer (1) is located on A faces active coating (2), and the second all solid state electrolyte layer (5) is located at the work of B faces
On property coating (4)；The anode pole piece (6) is located at the second all solid state electrolyte layer (5)；The solid union electrode cores are put absolutely
Edge barrier film is simultaneously encapsulated into shell.
Among one embodiment：The first all solid state electrolyte layer (1) and the second all solid state electrolyte layer (5) pass through vacuum
Mode is coated with to be coated on respectively on A faces active coating (2) and B faces active coating (4).
Among one embodiment：The cathode pole piece (7) also includes negative current collector (3), A faces active coating (2) and B
Face active coating (4) is respectively provided at the positive back side of negative current collector (3).
Among one embodiment：The thickness of first all solid state electrolyte (1) and the second all solid state electrolyte (5) is 5-
20um, the first all solid state electrolyte layer (1), cathode pole piece (7) and the second all solid state electrolyte layer (5) composition cathode pole piece
Composite bed (8), the width of the cathode pole piece composite bed (8) grow 0.5~1.5mm than the width of anode pole piece (6).
Among one embodiment：The anode pole piece (6) is provided with two-sided active coating, the anode pole piece (6) and negative pole
Thickness after the active coating of pole piece (7) rolls is equal, and the active coating thickness is 100~140um.
A kind of preparation method of above-mentioned all-solid lithium-ion battery, including：
Step 1, cathode pole piece (7) and anode pole piece (6) are prepared；
Step 2, roll and blow off cathode pole piece (7) and anode pole piece (6)；
Step 3, cathode pole piece (7) and anode pole piece (6) are dried；
Step 4, cathode pole piece (7) is coated with the first all solid state electrolyte layer (1) in vacuum environment or inert gas shielding
With the second all solid state electrolyte layer (5) to obtain cathode pole piece composite bed (8)；
Step 5, cathode pole piece composite bed (8) and anode pole piece (6) are laminated to obtain solid union electrode original piece；
Step 6, solid union electrode original piece is cooled down, cuts solid union electrode original piece to obtain monomer solid-state combination electrode
Piece (9)；
Step 7, monomer solid-state combination electrode piece (9) puts insulation diaphragm and is encapsulated into shell.
Among one embodiment：The step 7, including：
Step 71, cylindricality solid union electrode cores are made in monomer solid-state combination electrode piece (9)；
Step 72, cylindricality solid union electrode cores put insulation diaphragm and are encapsulated into shell.
Among one embodiment：In the step 6, solid union electrode original piece is cooled down, solid union electrode original piece is put
In supporting table, the first all solid state electrolyte layer (1) is set to contact supporting table, anode pole piece (6) upward, cuts solid-state from top to bottom
Combination electrode original piece is to obtain monomer solid-state combination electrode piece (9).
Among one embodiment：In the step 72, cylindricality solid union electricity is made in winding monomer solid-state combination electrode piece (9)
Pole piece.
Among one embodiment：In the step 72, multigroup monomer solid-state combination electrode piece both positive and negative polarity is cross-superimposed to wind again
Cylindricality solid union electrode cores are made.
Compared with background technology, it has the following advantages that the technical program：
Cathode pole piece has A faces active coating and B faces active coating, and the first all solid state electrolyte layer is located at A faces activity and applied
On layer, the second all solid state electrolyte layer is located on the active coating of B faces, and anode pole piece is located at the second all solid state electrolyte layer, solid-state
Insulation diaphragm and shell is encapsulated on combination electrode core retainer plate, therefore overcomes the deficiency present in background technology and produce following skill
Art effect：1st, all-solid lithium-ion battery uses double-deck all solid state electrolyte layer and the Combination Design of both positive and negative polarity and electrolyte,
Can meet all-solid lithium-ion battery of different shapes is manufactured the needs of；2nd, can provided with the second all solid state electrolyte layer
To avoid the positive and negative electrode of synthesis from being wound or the stacking of multiple monomer solid-state combination electrode pieces, folding that short circuit occur existing
As the manufacturing available for rectangular cell and cylindrical battery；3rd, design is simple, workable.
Brief description of the drawings
The invention will be further described with reference to the accompanying drawings and examples.
Fig. 1 is monomer solid-state combination electrode chip architecture figure.
Fig. 2 is the manufacturing process of solid union electrode cores.
Label declaration：First all solid state electrolyte layer -- 1；A faces active coating -- 2；Negative current collector -- 3；B faces activity applies
Layer -- 4；Second all solid state electrolyte layer -- 5；Anode pole piece -- 6；Cathode pole piece -- 7；Composite negative pole composite bed -- 8；Monomer solid
State compound electric pole piece -- 9.
Embodiment
Embodiment one
As shown in Figure 1：All-solid lithium-ion battery, including shell, insulation diaphragm set and solid union electrode cores.It is described solid
State compound electric pole piece, which comprises at least, one group of monomer solid-state combination electrode piece 9, the insulation diaphragm from resistant to elevated temperatures insulation every
Membrane cover；The solid union electrode cores are made cylindricality solid union electrode cores and put insulation diaphragm again, be then encapsulated into shell into
For cylindricality all-solid lithium-ion battery.
The monomer solid-state combination electrode piece 9 includes the first all solid state electrolyte layer 1, cathode pole piece 7, the second all solid state electricity
Solve matter layer 5 and anode pole piece 6.The cathode pole piece 7 has two-sided active coating, and the two-sided active coating is respectively A
Face active coating 2 and B faces active coating 4；The cathode pole piece 7 also includes negative current collector 3, A faces active coating 2 and B
Face active coating 4 is respectively provided at the positive back side of negative current collector 3.The first all solid state electrolyte layer 1 is located at A faces active coating
On 2, the second all solid state electrolyte layer 5 is located on B faces active coating 4, among the present embodiment, the first all solid state electrolysis
The all solid state electrolyte layer 5 of matter layer 1 and second is coated with mode by vacuum and is coated on A faces active coating 2 and B faces active coating respectively
On 4.The anode pole piece 6 is located at the second all solid state electrolyte layer 5.First all solid state electrolyte, the 1 and second all solid state electricity
The thickness of solution matter 5 is equal and is 5-20um, and first all solid state electrolyte 1, the thickness of the second all solid state electrolyte 5 are both less than
Or equal to the thickness of negative current collector 3.
The first all solid state electrolyte layer 1, all solid state electrolyte layer 5 of cathode pole piece 7 and second composition cathode pole piece are answered
Close layer 8, the first all solid state electrolyte layer 1, the perimeter alignment of 7 and second all solid state electrolyte layer of cathode pole piece 5；The negative pole
The width of pole piece composite bed 8 is longer 0.5~1.5mm than the width of anode pole piece 6.The anode pole piece 6 also is provided with two-sided active coating,
Thickness after the anode pole piece 6 rolls with the active coating of cathode pole piece 7 is equal, the anode pole piece 6, cathode pole piece 7
Active coating thickness is all 100~140um.
A kind of preparation method of all-solid lithium-ion battery, including：
Step 1, cathode pole piece 7 and anode pole piece 6 are prepared；
Step 2, roll and blow off cathode pole piece 7 and anode pole piece 6；
Step 3, cathode pole piece 7 and anode pole piece 6 are dried in drying chamber, to dry the moisture on pole piece；
Step 4, cathode pole piece 7 is coated with the first all solid state electrolyte layer 1 and second in the coating chamber with vacuum environment
All solid state electrolyte layer 5 is to obtain cathode pole piece composite bed 8；
Step 5, cathode pole piece composite bed 8 and anode pole piece 6 are laminated by thermal synthesis mode to be consolidated in synthesis chamber
State combination electrode original piece；
Step 6, solid union electrode original piece is cooled down to room temperature, and solid union electrode original piece is seated in supporting table, made
First all solid state electrolyte layer 1 contacts supporting table, and anode pole piece 6 upward, cuts solid union electrode original piece to obtain from top to bottom
Monomer solid-state combination electrode piece 9 is obtained, to avoid solid union electrode slice from being layered in cutting；
Step 71, cylindricality solid union electrode cores are made in monomer solid-state combination electrode piece 9；
Step 72, cylindricality solid union electrode cores, which put insulation diaphragm and are encapsulated into shell, turns into cylindricality all solid state lithium ion
Battery.
In the step 72, cylindricality solid union electrode cores are made in the monomer solid-state combination electrode piece 9 for winding single group, i.e.
All-solid lithium-ion battery contains one group of monomer solid-state combination electrode piece.
The drying chamber, room, synthesis chamber are coated with all in vacuum environment, moreover, wherein：It is 90~100 to dry room temperature
℃；Room temperature is coated with as 160~180 DEG C, inert gas pressure is 2x10-4~1x10-6Pa, as a preferred embodiment, inert gas
There are nitrogen, argon gas；It is 100~120 DEG C to synthesize room temperature.
The cathode pole piece 6 is coated with all solid state electrolyte layer 1,5 and uses reactive magnetron sputtering method, is realized using reverse disk roller
Two-sided film deposition, sputtering pressure are controlled in 0.1~0.3Pa.
The preparation method of all-solid lithium-ion battery, it is easy to operate, efficient.The present invention utilizes electrode and all solid state electrolyte
Combination Design using fine technological design by controlling the thickness and synthesis temperature of stratified material so that different hardness layer
Shape material tight is connected.The characteristics of present invention is higher than positive electrode fusing point using negative material fusing point and complex reaction magnetic control splash
Method is penetrated without to the advantage of the too high heating of substrate, carrying out reactive magnetron sputtering method using negative pole and produce all solid state electrolyte, its into
Film temperature it is low can not only more preferable guard electrode material, the strong vacuum environment of controllability, which has, to be more beneficial for producing the complete of even film layer
Solid-state electrolyte layer.The present invention is by the fine layered design of all-solid lithium-ion battery and is different from traditional lithium battery pole slice
Cutting mode from bottom to top is supported cutting to solid union electrode original piece, avoids the stratiform that hardness differs occur during cutting
Body occurs separating or burr phenomena.The present invention is by cathode pole piece double coated all solid state electrolyte, having technological process
Strong applicability, meet the manufacture demand of shape battery core design.The fine rational design of all-solid lithium-ion battery and be coated with
Even all solid state electrolyte film layer so that all-solid lithium-ion battery is readily synthesized cutting.
Embodiment two
It is with the difference of embodiment one：All-solid lithium-ion battery contains two groups of monomer solid-state combination electrode pieces；
The both positive and negative polarity of two groups of monomer solid-state combination electrode pieces is cross-superimposed, then winds and cylindricality solid union electrode cores, cylindricality solid-state is made
Insulation diaphragm on combination electrode core retainer plate, then be encapsulated into housing and turn into cylindricality all-solid lithium-ion battery.
Embodiment three
It is with the difference of embodiment one：All-solid lithium-ion battery contains one group of monomer solid-state combination electrode piece,
Monomer solid-state combination electrode piece is directly prepared into square solid union electrode cores, and square solid union electrode cores put insulation diaphragm and entered
Shell turns into square all-solid lithium-ion battery.
In the step 7, square solid union electrode cores, square solid union electricity is made in monomer solid-state combination electrode piece 9
Pole piece, which puts insulation diaphragm and is encapsulated into shell, turns into square all-solid lithium-ion battery.
Example IV
It is with the difference of embodiment three：All-solid lithium-ion battery contains two groups of monomer solid-state combination electrode pieces,
Two groups of monomer solid-state combination electrode piece both positive and negative polarities are cross layered to be made square solid union electrode cores, square solid union electrode cores
Putting insulation diaphragm and entering shell turns into square all-solid lithium-ion battery.
It is described above, only present pre-ferred embodiments, therefore the scope that the present invention is implemented can not be limited according to this, i.e., according to
The equivalent changes and modifications that the scope of the claims of the present invention and description are made, all should still it belong in the range of the present invention covers.
Claims (10)
- A kind of 1. all-solid lithium-ion battery, it is characterised in that：It is described including shell, insulation diaphragm and solid union electrode cores Solid union electrode cores comprise at least one group of monomer solid-state combination electrode piece (9)；The monomer solid-state combination electrode piece (9) includes First all solid state electrolyte layer (1), cathode pole piece (7), the second all solid state electrolyte layer (5) and anode pole piece (6)；The negative pole Pole piece (7) has two-sided active coating, and the two-sided active coating is respectively A faces active coating (2) and B faces active coating (4)；The first all solid state electrolyte layer (1) is located on A faces active coating (2), and the second all solid state electrolyte layer (5) sets On B faces active coating (4)；The anode pole piece (6) is located at the second all solid state electrolyte layer (5)；The solid union electrode Insulation diaphragm and shell is encapsulated on core retainer plate.
- A kind of 2. all-solid lithium-ion battery according to claim 1, it is characterised in that：First all solid state electrolyte Layer (1) and the second all solid state electrolyte layer (5) are coated with mode by vacuum and are coated on A faces active coating (2) and B faces activity respectively On coating (4).
- A kind of 3. all-solid lithium-ion battery according to claim 1, it is characterised in that：The cathode pole piece (7) is also wrapped Negative current collector (3) is included, A faces active coating (2) and B faces active coating (4) are respectively provided at the positive back of the body of negative current collector (3) Face.
- A kind of 4. all-solid lithium-ion battery according to claim 1, it is characterised in that：First all solid state electrolyte (1) and the thickness of the second all solid state electrolyte (5) is 5-20um, the first all solid state electrolyte layer (1), cathode pole piece (7) With the second all solid state electrolyte layer (5) composition cathode pole piece composite bed (8), the width ratio of the cathode pole piece composite bed (8) is just The width of pole pole piece (6) grows 0.5~1.5mm.
- A kind of 5. all-solid lithium-ion battery according to claim 1, it is characterised in that：The anode pole piece (6) is provided with Thickness after the active coating of two-sided active coating, the anode pole piece (6) and cathode pole piece (7) rolls is equal, the work Property coating layer thickness is 100~140um.
- 6. a kind of preparation method of all-solid lithium-ion battery according to any one of claim 1 to 5, its feature exist In：Including：Step 1, cathode pole piece (7) and anode pole piece (6) are prepared；Step 2, roll and blow off cathode pole piece (7) and anode pole piece (6)；Step 3, cathode pole piece (7) and anode pole piece (6) are dried；Step 4, cathode pole piece (7) is coated with the first all solid state electrolyte layer (1) and in vacuum environment or inert gas shielding Two all solid state electrolyte layers (5) are to obtain cathode pole piece composite bed (8)；Step 5, cathode pole piece composite bed (8) and anode pole piece (6) are laminated to obtain solid union electrode original piece；Step 6, solid union electrode original piece is cooled down, cuts solid union electrode original piece to obtain monomer solid-state combination electrode piece (9)；Step 7, monomer solid-state combination electrode piece (9) puts insulation diaphragm and is encapsulated into shell.
- A kind of 7. preparation method of all-solid lithium-ion battery according to claim 6, it is characterised in that：The step 7, Including：Step 71, cylindricality solid union electrode cores are made in monomer solid-state combination electrode piece (9)；Step 72, cylindricality solid union electrode cores put insulation diaphragm and are encapsulated into shell.
- A kind of 8. preparation method of all-solid lithium-ion battery according to claim 6, it is characterised in that：The step 6 In, solid union electrode original piece is cooled down, solid union electrode original piece is seated in supporting table, makes the first all solid state electrolyte layer (1) supporting table is contacted, anode pole piece (6) upward, cuts solid union electrode original piece to obtain monomer solid union from top to bottom Electrode slice (9).
- A kind of 9. preparation method of all-solid lithium-ion battery according to claim 7, it is characterised in that：The step 72 In, cylindricality solid union electrode cores are made in winding monomer solid-state combination electrode piece (9).
- A kind of 10. preparation method of all-solid lithium-ion battery according to claim 7, it is characterised in that：The step In 72, cylindricality solid union electrode cores are made in cross-superimposed wind again of multigroup monomer solid-state combination electrode piece both positive and negative polarity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710552000.6A CN107425176A (en) | 2017-07-07 | 2017-07-07 | A kind of all-solid lithium-ion battery and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710552000.6A CN107425176A (en) | 2017-07-07 | 2017-07-07 | A kind of all-solid lithium-ion battery and preparation method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109494409A (en) * | 2018-10-19 | 2019-03-19 | 安徽正熹标王新能源有限公司 | A kind of lithium battery preparation method |
| WO2020038011A1 (en) * | 2018-08-24 | 2020-02-27 | 比亚迪股份有限公司 | Lithium ion battery and preparation method therefor, and electric vehicle |
| CN113410512A (en) * | 2018-09-26 | 2021-09-17 | 天津力神电池股份有限公司 | Cylindrical solid-state battery |
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| JP2004193112A (en) * | 2002-11-27 | 2004-07-08 | Matsushita Electric Ind Co Ltd | Solid electrolyte and all solid battery using solid electrolyte |
| CN101457343A (en) * | 2007-12-14 | 2009-06-17 | 中国电子科技集团公司第十八研究所 | Method for preparing lithium ion solid electrolyte film |
| CN103730684A (en) * | 2014-01-15 | 2014-04-16 | 广东亿纬赛恩斯新能源系统有限公司 | High-safety all-solid-state lithium ion battery and production method thereof |
| CN106898727A (en) * | 2017-05-05 | 2017-06-27 | 天津师范大学 | A kind of preparation method and applications of anode of solid lithium battery |
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| JP2004193112A (en) * | 2002-11-27 | 2004-07-08 | Matsushita Electric Ind Co Ltd | Solid electrolyte and all solid battery using solid electrolyte |
| CN101457343A (en) * | 2007-12-14 | 2009-06-17 | 中国电子科技集团公司第十八研究所 | Method for preparing lithium ion solid electrolyte film |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2020038011A1 (en) * | 2018-08-24 | 2020-02-27 | 比亚迪股份有限公司 | Lithium ion battery and preparation method therefor, and electric vehicle |
| CN113410512A (en) * | 2018-09-26 | 2021-09-17 | 天津力神电池股份有限公司 | Cylindrical solid-state battery |
| CN109494409A (en) * | 2018-10-19 | 2019-03-19 | 安徽正熹标王新能源有限公司 | A kind of lithium battery preparation method |
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