CN108258323A - A kind of production method of high specific energy solid lithium battery - Google Patents
A kind of production method of high specific energy solid lithium battery Download PDFInfo
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- CN108258323A CN108258323A CN201810091488.1A CN201810091488A CN108258323A CN 108258323 A CN108258323 A CN 108258323A CN 201810091488 A CN201810091488 A CN 201810091488A CN 108258323 A CN108258323 A CN 108258323A
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- lithium battery
- high specific
- production method
- specific energy
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- 239000007787 solid Substances 0.000 title claims abstract description 99
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 47
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 39
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 17
- 239000000463 material Substances 0.000 claims abstract description 45
- 238000000034 method Methods 0.000 claims abstract description 37
- 239000003792 electrolyte Substances 0.000 claims abstract description 33
- 239000011148 porous material Substances 0.000 claims abstract description 31
- 229920000642 polymer Polymers 0.000 claims abstract description 20
- 238000003475 lamination Methods 0.000 claims abstract description 12
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 claims abstract description 10
- 229910001416 lithium ion Inorganic materials 0.000 claims abstract description 10
- 238000000576 coating method Methods 0.000 claims abstract description 9
- 239000011248 coating agent Substances 0.000 claims abstract description 8
- 229920000867 polyelectrolyte Polymers 0.000 claims abstract description 7
- 238000004804 winding Methods 0.000 claims abstract description 4
- 239000002904 solvent Substances 0.000 claims description 39
- 239000008151 electrolyte solution Substances 0.000 claims description 30
- 239000011230 binding agent Substances 0.000 claims description 29
- 239000003795 chemical substances by application Substances 0.000 claims description 28
- 239000006258 conductive agent Substances 0.000 claims description 24
- 239000011267 electrode slurry Substances 0.000 claims description 24
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical group CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 claims description 20
- 239000000945 filler Substances 0.000 claims description 20
- 238000004513 sizing Methods 0.000 claims description 20
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 19
- 229910003002 lithium salt Inorganic materials 0.000 claims description 19
- 238000012545 processing Methods 0.000 claims description 17
- 238000007731 hot pressing Methods 0.000 claims description 15
- 159000000002 lithium salts Chemical class 0.000 claims description 11
- ATRRKUHOCOJYRX-UHFFFAOYSA-N Ammonium bicarbonate Chemical compound [NH4+].OC([O-])=O ATRRKUHOCOJYRX-UHFFFAOYSA-N 0.000 claims description 10
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 10
- 239000002202 Polyethylene glycol Substances 0.000 claims description 10
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 10
- 239000001099 ammonium carbonate Substances 0.000 claims description 10
- 239000011889 copper foil Substances 0.000 claims description 10
- 229910052593 corundum Inorganic materials 0.000 claims description 10
- 238000010438 heat treatment Methods 0.000 claims description 10
- 229910001845 yogo sapphire Inorganic materials 0.000 claims description 10
- 239000002033 PVDF binder Substances 0.000 claims description 9
- 239000001768 carboxy methyl cellulose Substances 0.000 claims description 9
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 9
- 229920002981 polyvinylidene fluoride Polymers 0.000 claims description 9
- 239000007774 positive electrode material Substances 0.000 claims description 9
- 239000002002 slurry Substances 0.000 claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 229910001290 LiPF6 Inorganic materials 0.000 claims description 8
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 7
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 7
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 7
- PAWQVTBBRAZDMG-UHFFFAOYSA-N 2-(3-bromo-2-fluorophenyl)acetic acid Chemical compound OC(=O)CC1=CC=CC(Br)=C1F PAWQVTBBRAZDMG-UHFFFAOYSA-N 0.000 claims description 6
- 229910002804 graphite Inorganic materials 0.000 claims description 6
- 239000010439 graphite Substances 0.000 claims description 6
- 239000007773 negative electrode material Substances 0.000 claims description 6
- USFZMSVCRYTOJT-UHFFFAOYSA-N Ammonium acetate Chemical compound N.CC(O)=O USFZMSVCRYTOJT-UHFFFAOYSA-N 0.000 claims description 5
- 239000005695 Ammonium acetate Substances 0.000 claims description 5
- 229910000013 Ammonium bicarbonate Inorganic materials 0.000 claims description 5
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 5
- 239000006230 acetylene black Substances 0.000 claims description 5
- 229940043376 ammonium acetate Drugs 0.000 claims description 5
- 235000019257 ammonium acetate Nutrition 0.000 claims description 5
- 235000012538 ammonium bicarbonate Nutrition 0.000 claims description 5
- 235000012501 ammonium carbonate Nutrition 0.000 claims description 5
- 239000004917 carbon fiber Substances 0.000 claims description 5
- 230000005611 electricity Effects 0.000 claims description 5
- OVAQODDUFGFVPR-UHFFFAOYSA-N lithium cobalt(2+) dioxido(dioxo)manganese Chemical compound [Li+].[Mn](=O)(=O)([O-])[O-].[Co+2] OVAQODDUFGFVPR-UHFFFAOYSA-N 0.000 claims description 5
- 229910001486 lithium perchlorate Inorganic materials 0.000 claims description 5
- 239000012621 metal-organic framework Substances 0.000 claims description 5
- 229920003229 poly(methyl methacrylate) Polymers 0.000 claims description 5
- 239000004926 polymethyl methacrylate Substances 0.000 claims description 5
- 229910000552 LiCF3SO3 Inorganic materials 0.000 claims description 4
- 239000010405 anode material Substances 0.000 claims description 4
- 229910021389 graphene Inorganic materials 0.000 claims description 4
- 229910021385 hard carbon Inorganic materials 0.000 claims description 4
- 239000003273 ketjen black Substances 0.000 claims description 4
- 229920002239 polyacrylonitrile Polymers 0.000 claims description 4
- 229910052493 LiFePO4 Inorganic materials 0.000 claims description 3
- PFYQFCKUASLJLL-UHFFFAOYSA-N [Co].[Ni].[Li] Chemical compound [Co].[Ni].[Li] PFYQFCKUASLJLL-UHFFFAOYSA-N 0.000 claims description 3
- DPXJVFZANSGRMM-UHFFFAOYSA-N acetic acid;2,3,4,5,6-pentahydroxyhexanal;sodium Chemical compound [Na].CC(O)=O.OCC(O)C(O)C(O)C(O)C=O DPXJVFZANSGRMM-UHFFFAOYSA-N 0.000 claims description 3
- 239000005030 aluminium foil Substances 0.000 claims description 3
- 239000002041 carbon nanotube Substances 0.000 claims description 3
- 229910021393 carbon nanotube Inorganic materials 0.000 claims description 3
- MHCFAGZWMAWTNR-UHFFFAOYSA-M lithium perchlorate Chemical compound [Li+].[O-]Cl(=O)(=O)=O MHCFAGZWMAWTNR-UHFFFAOYSA-M 0.000 claims description 3
- 229920001223 polyethylene glycol Polymers 0.000 claims description 3
- 235000019812 sodium carboxymethyl cellulose Nutrition 0.000 claims description 3
- 229920001027 sodium carboxymethylcellulose Polymers 0.000 claims description 3
- 239000000243 solution Substances 0.000 claims description 3
- OXHNLMTVIGZXSG-UHFFFAOYSA-N 1-Methylpyrrole Chemical group CN1C=CC=C1 OXHNLMTVIGZXSG-UHFFFAOYSA-N 0.000 claims description 2
- 238000005538 encapsulation Methods 0.000 claims description 2
- 239000011256 inorganic filler Substances 0.000 claims description 2
- 229910003475 inorganic filler Inorganic materials 0.000 claims description 2
- 239000012766 organic filler Substances 0.000 claims description 2
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 claims 3
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims 2
- 239000004810 polytetrafluoroethylene Substances 0.000 claims 2
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 claims 1
- 239000006256 anode slurry Substances 0.000 claims 1
- 238000005868 electrolysis reaction Methods 0.000 claims 1
- 229910001453 nickel ion Inorganic materials 0.000 claims 1
- -1 polytetrafluoroethylene Polymers 0.000 claims 1
- HNJBEVLQSNELDL-UHFFFAOYSA-N pyrrolidin-2-one Chemical compound O=C1CCCN1 HNJBEVLQSNELDL-UHFFFAOYSA-N 0.000 claims 1
- 239000007772 electrode material Substances 0.000 abstract description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 14
- 229910052782 aluminium Inorganic materials 0.000 description 14
- 230000000052 comparative effect Effects 0.000 description 7
- 239000008367 deionised water Substances 0.000 description 7
- 229910021641 deionized water Inorganic materials 0.000 description 7
- 239000011888 foil Substances 0.000 description 7
- 239000000203 mixture Substances 0.000 description 7
- 239000002985 plastic film Substances 0.000 description 7
- 229920006255 plastic film Polymers 0.000 description 7
- 239000007784 solid electrolyte Substances 0.000 description 7
- 229920002134 Carboxymethyl cellulose Polymers 0.000 description 6
- 235000010948 carboxy methyl cellulose Nutrition 0.000 description 6
- 239000008112 carboxymethyl-cellulose Substances 0.000 description 6
- 238000005507 spraying Methods 0.000 description 6
- 239000003989 dielectric material Substances 0.000 description 5
- 229910052799 carbon Inorganic materials 0.000 description 4
- 229910004761 HSV 900 Inorganic materials 0.000 description 3
- GELKBWJHTRAYNV-UHFFFAOYSA-K lithium iron phosphate Chemical compound [Li+].[Fe+2].[O-]P([O-])([O-])=O GELKBWJHTRAYNV-UHFFFAOYSA-K 0.000 description 3
- 229910052759 nickel Inorganic materials 0.000 description 3
- 239000004800 polyvinyl chloride Substances 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 2
- MTAZNLWOLGHBHU-UHFFFAOYSA-N butadiene-styrene rubber Chemical compound C=CC=C.C=CC1=CC=CC=C1 MTAZNLWOLGHBHU-UHFFFAOYSA-N 0.000 description 2
- 239000010406 cathode material Substances 0.000 description 2
- 229910052681 coesite Inorganic materials 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 238000010281 constant-current constant-voltage charging Methods 0.000 description 2
- 229910052906 cristobalite Inorganic materials 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 239000005518 polymer electrolyte Substances 0.000 description 2
- 229920000915 polyvinyl chloride Polymers 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 229910052682 stishovite Inorganic materials 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 229910052905 tridymite Inorganic materials 0.000 description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-M Bicarbonate Chemical compound OC([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-M 0.000 description 1
- 229910002097 Lithium manganese(III,IV) oxide Inorganic materials 0.000 description 1
- HMDDXIMCDZRSNE-UHFFFAOYSA-N [C].[Si] Chemical compound [C].[Si] HMDDXIMCDZRSNE-UHFFFAOYSA-N 0.000 description 1
- QXZUUHYBWMWJHK-UHFFFAOYSA-N [Co].[Ni] Chemical compound [Co].[Ni] QXZUUHYBWMWJHK-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 239000006257 cathode slurry Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- RYGMFSIKBFXOCR-AHCXROLUSA-N copper-60 Chemical compound [60Cu] RYGMFSIKBFXOCR-AHCXROLUSA-N 0.000 description 1
- QHGJSLXSVXVKHZ-UHFFFAOYSA-N dilithium;dioxido(dioxo)manganese Chemical compound [Li+].[Li+].[O-][Mn]([O-])(=O)=O QHGJSLXSVXVKHZ-UHFFFAOYSA-N 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- XUCNUKMRBVNAPB-UHFFFAOYSA-N fluoroethene Chemical compound FC=C XUCNUKMRBVNAPB-UHFFFAOYSA-N 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 239000010977 jade Substances 0.000 description 1
- 239000011244 liquid electrolyte Substances 0.000 description 1
- YQNQTEBHHUSESQ-UHFFFAOYSA-N lithium aluminate Chemical compound [Li+].[O-][Al]=O YQNQTEBHHUSESQ-UHFFFAOYSA-N 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
Classifications
-
- 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
-
- 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
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Secondary Cells (AREA)
- Battery Electrode And Active Subsutance (AREA)
Abstract
The invention discloses a kind of production methods of high specific energy solid lithium battery, pore creating material pore-creating in positive/negative plate coating procedure is used first, electrode slice obtained is after roll-in in pole piece single side surface coating film polyelectrolyte solution, the method that the unilateral positive plate with electrolyte layer and negative plate are finally assembled to all-solid lithium-ion battery by way of winding or lamination.Compared with prior art, polyelectrolyte solution can be infiltrated through by the hole that pore creating material obtains inside pole piece in the method for the invention, obtained pole piece and polymer dielectric interfacial contact area are larger, increase the ionic conductivity of electrode material, the solid lithium battery being obtained by this method has many advantages, such as that interface resistance is low, and energy density is high, stability and safe.
Description
Technical field
The invention belongs to field of lithium ion battery, and in particular to a kind of production method of high specific energy solid lithium battery.
Background technology
Lithium-ion-power cell has many advantages, such as energy density height, long lifespan, environmentally protective, is to be most widely used at present
New-energy automobile power source.With the continuous popularization of lithium battery new-energy automobile, traditional lithium-ion-power cell is difficult
To meet requirement of the automobile to safety, course continuation mileage.The electrolyte that especially current lithium-ion-power cell uses is mostly
Flammable and explosive organic solvent system, it is especially prominent for automotive field security risk, it is made of solid electrolyte complete
Solid lithium ion dynamic battery can greatly improve the safety of power battery, have received widespread attention.
The tightness degree that solid electrolyte in solid lithium battery is contacted with electrode directly affects the transmission of lithium ion, will
By the standby solid state lithium battery of simple lamination, hot pressing, interface impedance is excessive for electrode slice and solid electrolyte film；In the electrodes
Addition solid electrolyte can improve the interfacial contact of electrolyte/electrode, reduce interface impedance, but electrolyte adds in electrode
Amount usually bigger (20%~30% mass ratio), can reduce pole piece activity substance content, cause the loss of pole piece specific capacity larger.
Invention content
In order to overcome the problems of the above-mentioned prior art, the purpose of the present invention is to provide a kind of high specific energy all solid lithiums
The production method of battery, the present invention can improve electrolyte and electrode slice without adding electrolyte in pole piece coating procedure
Interfacial contact under the premise of pole piece height ratio capacity is kept, reduces electrode/electrolyte interface resistance.
In order to achieve the above objectives, the present invention adopts the following technical scheme that：
A kind of production method of high specific energy solid lithium battery, includes the following steps：
Step 1：Positive electrode active materials, conductive agent, binding agent, pore creating material are dissolved in a solvent in proportion, are prepared into just
Pole slurry, by anode sizing agent coated on plus plate current-collecting body, thermally treated and roller process obtains positive plate；
Step 2：Negative material, conductive agent, binding agent, pore creating material are dissolved in a solvent in proportion, are prepared into cathode slurry
Negative electrode slurry is coated on negative current collector by material, and thermally treated and roller process obtains negative plate；
Step 3：Polymer dielectric, filler, lithium salts are dissolved in solvent in proportion, prepare several different solid contents
Electrolyte solution；Electrolyte solution is sequentially coated at the one of positive plate and negative plate according to the sequence of solid content from low to high
Side surface is heat-treated after coating every time, finally obtains the unilateral positive plate and negative plate for carrying electrolyte layer；
Step 4：Using winding or lamination by the way of, by step 3 make unilateral side with electrolyte layer positive plate and
Negative plate is assembled into all-solid lithium-ion battery battery core, and all-solid lithium-ion battery is obtained through hot pressing and encapsulation.
Further, conductive agent described in step 1 and step 2 be conductive carbon black, electrically conductive graphite, acetylene black, Ketjen black,
One or more of carbon fiber, carbon nanotube and graphene, the binding agent are polyvinylidene fluoride, polyvinyl alcohol, poly- four
One or more of vinyl fluoride, sodium carboxymethylcellulose and butadiene-styrene rubber, the pore creating material be ammonium hydrogen carbonate, ammonium acetate, nitre
One or more of sour ammonium and ammonium carbonate.
Further, positive electrode active materials described in step 1 are LiFePO4, nickle cobalt lithium manganate, nickel cobalt lithium aluminate, nickel
The one or more of LiMn2O4 and lithium-rich anode material, the solvent are N-Methyl pyrrolidone, and the plus plate current-collecting body is aluminium
Foil；
Negative electrode active material described in step 2 is the one or more of graphite, hard carbon and silica-base material, and the solvent is
Deionized water, the negative current collector are copper foil.
Further, the percentage that each solid component accounts for total solid quality in the anode sizing agent is：Positive electrode active materials
89%~97.9%, conductive agent 1%~5%, binding agent 1%~3%, pore creating material 0.1%~3%, and anode sizing agent solid content
It is 30%~80%.
Further, the percentage that each solid component accounts for total solid quality in the negative electrode slurry is：Negative electrode active material
91%~98.4%, conductive agent 0.5%~3%, binding agent 1%~3%, pore creating material 0.1%~3%, and negative electrode slurry contains admittedly
Measure is 30%~60%.
Further, polymer dielectric described in step 3 is polyethylene glycol oxide system, polymethyl methacrylate system, gathers
One or more of acrylic, Kynoar system and polyvinyl chloride；The filler is nanometer Al2O3, Nano-meter SiO_22Nothing
Machine filler or metal-organic framework material organic filler；The lithium salts is LiCF3SO3、LiClO4、LiPF6With one kind in LiI
It is or a variety of；The solvent is N-Methyl pyrrolidone.
Further, the percentage that each solid component of the electrolyte solution accounts for total solid quality is：Polymer electrolytic
Matter 80%~98.5%, proportion of filler are 0.5%~10%；Lithium salts ratio is 1%~10%；Consolidating for the electrolyte solution contains
Measure is 1%~80%.
Further, the thickness that positive plate and the polyelectrolyte floor on negative plate surface are coated in step 3 is 5-50
μm, preferably 10-20 μm.
Further, 80~140 DEG C of heat treatment temperature in step 1, processing time are 60~600s；In step 2 at heat
60~120 DEG C of temperature is managed, processing time is 60~600s；60~120 DEG C of heat treatment temperature in step 3, processing time for 60~
600s。
Further, the hot pressing temperature in step 4 in solid state lithium battery assembling process is 80~160 DEG C, pressure for 5~
10Mpa, time are 1~200s.
Compared with prior art, the present invention has technique effect beneficial below：
It is excessive with respect to solid electrolyte additive amount in the electrode material of conventional method, cause the loss of pole piece specific capacity excessive
Shortcoming, the present invention do not have doped polymer solid electrolyte in positive and negative anodes pole piece coating procedure, maintain electrode specific capacity basic
It is constant；Polyelectrolyte solution is coated with or is sprayed on positive plate and negative plate surface, polyelectrolyte solution can pass through
The hole that pore creating material obtains is infiltrated through inside pole piece, and obtained pole piece and polymer dielectric interfacial contact area are larger, finally
Battery core is assembled into, it is fit by forming close anode-electrolyte-cathode three-layered node after hot-pressing processing, it can effectively reduce solid
The interface resistance of state lithium battery；There is higher safety relative to the lithium battery of liquid electrolyte.
Specific embodiment
Embodiments of the present invention are described in further detail below：
A kind of production method of high specific energy solid lithium battery, includes the following steps：
Step (1)：Positive electrode active materials, conductive agent, binding agent, pore creating material are dissolved in a solvent with certain proportion, system
For into anode sizing agent, by anode sizing agent coated on plus plate current-collecting body, thermally treated and roller process obtains positive plate；
Step (2)：Negative material, conductive agent, binding agent, pore creating material with certain proportion are dissolved in a solvent, are prepared into
Negative electrode slurry is coated on negative current collector by negative electrode slurry, and thermally treated and roller process obtains negative plate；
Step (3)：Polymer dielectric, filler, lithium salts etc. are dissolved in certain proportion in solvent, prepare several differences
The electrolyte solution of solid content；Electrolyte solution is sequentially coated to the side table of pole piece according to the sequence of solid content from low to high
Face, every time coating are both needed to through Overheating Treatment, finally obtain the unilateral positive plate and negative plate for carrying electrolyte layer；
Step (4)：By the way of winding or lamination, the unilateral side that step (3) is made carries the positive plate of electrolyte layer
All-solid lithium-ion battery is assembled into negative plate；
In step (1), (2), the conductive agent is conductive carbon black, electrically conductive graphite, acetylene black, Ketjen black, carbon fiber, carbon are received
One or more of mitron, graphene etc.；Binding agent is polyvinylidene fluoride (PVDF), polyvinyl alcohol (PVA), polytetrafluoroethyl-ne
One or more of alkene (PTFE), sodium carboxymethylcellulose (CMC), butadiene-styrene rubber (SBR) etc.；The pore creating material is bicarbonate
One or more of ammonium, ammonium acetate, ammonium nitrate, ammonium carbonate；
In step (1), the positive electrode active materials include LiFePO4, nickle cobalt lithium manganate, nickel cobalt lithium aluminate, nickel mangaic acid
The one or more of lithium, lithium-rich anode material；The solvent is N-Methyl pyrrolidone (NMP)；The anode sizing agent it is each solid
The percentage that body component accounts for total solid quality is：Positive electrode active materials 89%~97.9%, conductive agent 1%~5%, binding agent
1%~3%, pore creating material 0.1%~3%, wherein pore creating material the optimum quality ratio in anode sizing agent solid component are 0.5%-
1.5%；Slurry solid content can be adjusted between 30%~80%；The plus plate current-collecting body be aluminium foil, heat treatment temperature 80~140
DEG C, processing time is 60~600s；
In step (2), the negative electrode active material includes the one or more of graphite, hard carbon, silica-base material；The solvent
For deionized water；The percentage that each solid component of the negative electrode slurry accounts for total solid quality is：Negative electrode active material 91%~
98.4%, conductive agent 0.5%~3%, binding agent 1%~3%, pore creating material 0.1%~3%, wherein pore creating material is in negative electrode slurry
Optimum quality ratio is 0.5%-1.5% in solid component；Slurry solid content can be adjusted between 30%~60%；The negative pole currect collecting
Body is copper foil, and 60~120 DEG C of heat treatment temperature, processing time is 60~600s；
In step (3), the polymer dielectric is polyethylene glycol oxide (PEO) system, polymethyl methacrylate (PMMA)
One or more of system, polyacrylonitrile (PAN) system, Kynoar (PVDF) system, polyvinyl chloride (PVC) system etc., preferably
PEO systems；The filler is nanometer Al2O3, Nano-meter SiO_22Inorganic filler or one kind or several of metal-organic framework material (MOFs)
Kind；The lithium salts includes LiCF3SO3、LiClO4、LiPF6, it is one or more in LiI etc.；The solvent is N- methylpyrroles
Alkanone (NMP)；The percentage that each solid component of the electrolyte solution accounts for total solid quality is：Polymer dielectric 80%~
98.5%, proportion of filler is 0.5%~10%；Lithium salts ratio is 1%~10%；The electrolyte solution solid content can exist respectively
It is adjusted between 1%~80%；The electrolyte solution of the different solid contents of the configuration is 1~6 kind；Consolidating for the electrolyte solution contains
It measures when being a kind of, can also be performed in multiple times multipass coating；The painting method of the electrolyte solution includes slurry rubbing method, spraying
Method etc.；60~120 DEG C of heat treatment temperature, processing time are 60~600s；It is described poly- coated in anode and cathode pole piece surface
The thickness of polymer electrolyte layer is 5-50 μm；The thickness of the polyelectrolyte floor coated in anode and cathode pole piece surface
Preferably 10-20 μm；
In step (4), hot pressing temperature needed for the solid state lithium battery assembling process is 80~160 DEG C, pressure for 5~
10Mpa, time are 1~200s.
The present invention is described in further detail with reference to embodiment：
Embodiment 1
(1) anode slurrying is according to following mass ratio：Nickle cobalt lithium manganate (NCM523) positive electrode 97.9%, Super P Li
Conductive agent 1%, PVDF (HSV-900) binding agent 1%；Ammonium hydrogen carbonate pore creating material 0.1%, by double planetary mixer, using NMP as
Solvent is prepared into the anode sizing agent of solid content 65%.Anode sizing agent is applied in aluminum foil current collector, by being heat-treated at 140 DEG C
Positive plate is made by roller process in 60s；
(2) cathode slurrying is according to following mass ratio：Delanium G9 accounts for 98.4%, Super P Li conductive agents 0.5%,
CMC (Daicel) binding agent 1%, ammonium hydrogen carbonate pore creating material 0.1%, by double planetary mixer, using deionized water as solvent system
The standby negative electrode slurry into solid content 45%.Negative electrode slurry is applied in copper foil current collector, by being heat-treated 60s at 120 DEG C, after
Negative plate is made through roller process；
(3) electrolyte solution is according to following mass ratio：PEO polymer dielectrics 98.5%, Al2O3Proportion of filler is
0.5%；LiPF6Lithium salts ratio is 1%；By double planetary mixer, it is respectively 1% He to be prepared into solid content as solvent using NMP
10% electrolyte solution.Then above-mentioned electrolyte is uniformly sprayed at anode according to solid content height successively spray coating method and born
In the single side surface of pole piece, the electrolyte layer of uniform 10 μ m-thick is formed on pole piece by heat treatment 60s at 120 DEG C.
(4) the unilateral positive plate with electrolyte, negative plate are punched, through lamination assembling into 2Ah soft pack cells, weld pole
By 160 DEG C, 5Mpa hot-pressing processing 1s after ear, composition solid lithium battery is encapsulated with aluminum plastic film.
Embodiment 2
(1) anode slurrying is according to following mass ratio：Nickel cobalt lithium aluminate (NCA) positive electrode 89%, acetylene black conductor
5%, PVA binding agent 3%；By double planetary mixer, solid content 80% is prepared by solvent of NMP for ammonium carbonate pore creating material 3%
Anode sizing agent.Anode sizing agent is applied in aluminum foil current collector, by being heat-treated 600s at 80 DEG C, is made by roller process
Positive plate；
(2) cathode slurrying is according to following mass ratio：Silicon-carbon accounts for 91%, carbon nanotube conducting agent 3%, SBR binding agents 3%,
By double planetary mixer, the negative electrode slurry of solid content 60% is prepared into using deionized water as solvent for ammonium carbonate pore creating material 3%.
Negative electrode slurry is applied in copper foil current collector, by being heat-treated 600s at 60 DEG C, negative plate is made by roller process；
(3) electrolyte solution is according to following mass ratio：PVC polymer electrolyte 80%, SiO2Proportion of filler is 10%；
LiCF3SO3Lithium salts ratio is 10%；By double planetary mixer, solid content 10% is prepared into using NMP as solvent, 40%, 80%
Electrolyte solution.Then above-mentioned electrolyte is uniformly sprayed at anode and negative plate according to solid content height successively spray coating method
Single side surface on, the electrolyte layer of uniform 5 μ m-thick is formed on pole piece by being heat-treated 600s at 60 DEG C.
(4) the unilateral positive plate with electrolyte, negative plate are punched, through lamination assembling into 2Ah soft pack cells, weld pole
By 80 DEG C, 10Mpa hot-pressing processing 200s after ear, composition solid lithium battery is encapsulated with aluminum plastic film.
Embodiment 3
(1) anode slurrying is according to following mass ratio：Nickel lithium manganate cathode material 95%, graphene conductive agent 2%, PTFE glues
Tie agent 1.5%；By double planetary mixer, solid content 30% is being prepared into just by solvent of NMP for ammonium acetate pore creating material 1.5%
Pole slurry.Anode sizing agent is applied in aluminum foil current collector, by being heat-treated 60s at 140 DEG C, anode is made by roller process
Piece；
(2) cathode slurrying is according to following mass ratio：Hard carbon accounts for 93%, Super P Li conductive agents 2%, CMC (Daicel)
By double planetary mixer, solid content is prepared by solvent of deionized water for binding agent 3.5%, ammonium acetate pore creating material 1.5%
30% negative electrode slurry.Negative electrode slurry is applied in copper foil current collector, by being heat-treated 350s at 100 DEG C, at roll-in
Negative plate is made in reason；
(3) electrolyte solution is according to following mass ratio：PAN polymer dielectrics 85%, MOFs proportion of filler are 10%；
LiClO4Lithium salts ratio is 5%；By double planetary mixer, solid content 1% is prepared into using NMP as solvent, 5%, 7%, 12%,
15%, 20% electrolyte solution.Then above-mentioned electrolyte is uniformly sprayed at just according to solid content height successively spray coating method
In the single side surface of pole and negative plate, the electrolyte of uniform 50 μ m-thick is formed on pole piece by heat treatment 120s at 100 DEG C
Layer.
(4) the unilateral positive plate with electrolyte, negative plate are punched, through lamination assembling into 2Ah soft pack cells, weld pole
By 120 DEG C, 6Mpa hot-pressing processing 60s after ear, composition solid lithium battery is encapsulated with aluminum plastic film.
Embodiment 4
(1) anode slurrying is according to following mass ratio：Lithium iron phosphate positive material 93.5%, electric conduction of carbon fiber agent 3%, PVDF
(HSV-900) binding agent 3%；By double planetary mixer, solid content is prepared by solvent of NMP for ammonium nitrate pore creating material 0.5%
65% anode sizing agent.Anode sizing agent is applied in aluminum foil current collector, by being heat-treated 300s at 100 DEG C, at roll-in
Positive plate is made in reason；
(2) cathode slurrying is according to following mass ratio：Delanium G9 accounts for 96%, Ketjen black conductive agent 1%, CMC (contests
Fine jade) binding agent 1%, SBR binding agents 1.5%, ammonium nitrate pore creating material 0.5%, by double planetary mixer, using deionized water to be molten
Agent is prepared into the negative electrode slurry of solid content 45%.Negative electrode slurry is applied in copper foil current collector, by being heat-treated at 60 DEG C
Negative plate is made by roller process in 600s；
(3) electrolyte solution is according to following mass ratio：PVDF polymer dielectrics 90%, Al2O3Proportion of filler is 5%；
LiI lithium salts ratio is 5%；By double planetary mixer, the electrolyte solution of solid content 80% is prepared into using NMP as solvent.So
Electrolyte solution is uniformly sprayed at by spray coating method afterwards in the single side surface of anode and negative plate, by being heat-treated at 80 DEG C
300s forms the electrolyte layer of uniform 20 μ m-thick on pole piece.
(4) the unilateral positive plate with electrolyte, negative plate are punched, through lamination assembling into 2Ah soft pack cells, weld pole
By 100 DEG C, 8Mpa hot-pressing processing 100s after ear, composition solid lithium battery is encapsulated with aluminum plastic film.
Embodiment 5
(1) anode slurrying is according to following mass ratio：Lithium-rich anode material 63%, lithium iron phosphate positive material 30.5%, carbon
Fiber conductive agent 2%, acetylene black conductor 1%, PVDF (HSV-900) binding agent 2%；PVA binding agents 1%, ammonium nitrate pore-creating
By double planetary mixer, solid content 65% is being prepared into just by solvent of NMP for agent 0.2%, ammonium hydrogen carbonate pore creating material 0.3%
Pole slurry.Anode sizing agent is applied in aluminum foil current collector, by being heat-treated 100s at 120 DEG C, is made just by roller process
Pole piece；
(2) cathode slurrying is according to following mass ratio：Delanium G9 accounts for 66%, silicon-carbon cathode material 30%, conductive carbon black
1%, CMC (Daicel) binding agent 1%, SBR binding agents 1%, ammonium nitrate pore creating material 1%, by double planetary mixer, with go from
Sub- water is prepared into the negative electrode slurry of solid content 45% for solvent.Negative electrode slurry is applied in copper foil current collector, by 130 DEG C
90s is heat-treated, negative plate is made by roller process；
(3) electrolyte solution is according to following mass ratio：PMMA electrolyte 60%, PVA electrolyte 30%, Al2O3Proportion of filler
For 2%, SiO2Proportion of filler 3%；LiI lithium salts ratio is 2%, LiClO4Lithium salts ratio is 3%；By double planetary mixer, with
NMP is prepared into solid content 6%, 80% electrolyte solution for solvent.Then electrolyte solution is uniformly sprayed by spray coating method
It is sprinkled upon in the single side surface of anode and negative plate, the electricity that uniform 25 μ m-thick is formed on pole piece by being heat-treated 150s at 90 DEG C
Solve matter layer.
(4) the unilateral positive plate with electrolyte, negative plate are punched, through lamination assembling into 2Ah soft pack cells, weld pole
By 105 DEG C, 8Mpa hot-pressing processing 105s after ear, composition solid lithium battery is encapsulated with aluminum plastic film.
Comparative example 1
(1) anode slurrying is according to following mass ratio：Nickle cobalt lithium manganate (NCM523) positive electrode 96%, Super PLi are led
Electric agent 2%, HSV-900PVDF binding agents 2%；By double planetary mixer, solid content 65% is being prepared into just by solvent of NMP
Pole slurry, anode sizing agent is applied in aluminum foil current collector, and by being heat-treated 60s at 100 DEG C, anode is made by roller process
Piece；
(2) cathode slurrying is according to following mass ratio：Delanium G9 accounts for 96%, Super P Li conductive agents 1%, and CMC glues
Agent 1.5% is tied, by double planetary mixer, solid content 45% is prepared by solvent of deionized water for SBR binding agents 1.5%
Negative electrode slurry is applied in copper foil current collector by negative electrode slurry, by being heat-treated 60s at 90 DEG C, is made negative by roller process
Pole piece；
(3) electrolyte solution is according to following mass ratio：PEO polymer dielectrics 95%, Al2O3Proportion of filler is 2%；
LiPF6Lithium salts ratio is 3%；The electrolyte solution of solid content 15% is prepared into using NMP as solvent, then using solvent evaporated method
It is prepared into individual dielectric film.
(4) positive plate prepared, negative plate, electrolyte sheet are punched, through lamination assembling into 2Ah soft pack cells, welded
By 130 DEG C, 5Mpa hot-pressing processing 30s after lug, composition solid lithium battery is encapsulated with aluminum plastic film.
Comparative example 2
(1) anode slurrying is according to following mass ratio：Lithium iron phosphate positive material 80%, Super PLi conductive agents 2%, PEO
Solid electrolyte 16%, Al2O3Proportion of filler is 1%, LiPF6Lithium salts ratio is 1%；By double planetary mixer, using NMP as
Solvent is prepared into the anode sizing agent of solid content 65%, and anode sizing agent is applied in aluminum foil current collector, by being heat-treated at 100 DEG C
Positive plate is made by roller process in 60s；
(2) cathode slurrying is according to following mass ratio：Delanium G9 accounts for 81%, Super P Li conductive agents 1%, and PEO is solid
State electrolyte 16%, Al2O3Proportion of filler is 1%, LiPF6Lithium salts ratio is 1%；, by double planetary mixer, using NMP to be molten
Agent is prepared into the negative electrode slurry of solid content 45%, and negative electrode slurry is applied in copper foil current collector, by being heat-treated at 90 DEG C
Negative plate is made by roller process in 60s；
(3) electrolyte solution is according to following mass ratio：PEO polymer dielectrics 95%, Al2O3Proportion of filler is 2%；
LiPF6Lithium salts ratio is 3%；The electrolyte solution of solid content 15% is prepared into using NMP as solvent, then using solvent evaporated method
It is prepared into individual dielectric film.
(5) positive plate prepared, negative plate, electrolyte sheet are punched, through lamination assembling into 2Ah soft pack cells, welded
By 120 DEG C, 8Mpa hot-pressing processing 20s after lug, composition solid lithium battery is encapsulated with aluminum plastic film.
The solid lithium ion battery that Examples 1 to 4 and comparative example 1~2 are made electric discharge capacity, electricity by the following method
Chi Shouxiao, DC internal resistance.
Test method：
Discharge capacity：Battery 0.2C constant-current constant-voltage chargings end to 4.2V, constant-voltage charge to electric current≤0.05C, and 0.2C is permanent
Stream is discharged to discharge capacity during 2.75V；
Battery capacity conservation rate：Battery is ended with 1C constant-current constant-voltage chargings to 4.2V, constant-voltage charge to electric current≤0.05C,
1C constant-current discharges are to 2.75V, the ratio between discharge capacity and discharge capacity after 500 circle of cycle for the first time；
DC internal resistance：At room temperature, battery shelves 60min with 1C constant-current discharges to 2.75V；Battery is filled with 1C constant current constant voltages
Electricity to 4.2V, constant-voltage charge to electric current≤0.05C cut-offs shelves 60min；1C constant-current discharges 30min；Shelve 60min；1C constant currents
Discharge 10s, lower voltage limit 2.5V.The open-circuit voltage and electric current of recording impulse discharge process, and calculate DC internal resistance R.In direct current
It is as follows to hinder calculation formula：
Wherein, VinitialAnd VfinalThe respectively starting of process of pulse discharge and final voltage, IinitialAnd IfinalRespectively
For the starting of process of pulse discharge and termination electric current.
Table 1 is above-described embodiment and comparative example discharge capacity, the test result of cycle performance and DC internal resistance
By the test result of embodiment and comparative example in table 1 it is found that the solid-state lithium prepared using designing scheme in the present invention
Battery, DC internal resistance is relatively low, this is because polymer dielectric is directly coated on positive plate and negative plate table using coating method
Face, a small amount of polymer dielectric are penetrated by the hole that pore creating material is formed inside pole piece, increase pole piece/electrolyte interface
Product, not only increases the ionic conductivity of pole piece, while can reduce the impedance between pole piece/electrolyte interface to a certain extent, electricity
The cycle performance in pond is also obviously improved；And the conventional scheme in comparative example, pole piece and electrolyte are connect by hot pressing formation
Contacting surface, the contact area of the two is smaller, so the internal resistance of cell is larger, the cyclical stability of battery is also poor；When positive and negative electrode pole piece
When the polymer dielectric of middle incorporation is more, the energy density of battery can be also substantially reduced, as shown in table 1, by comparative example
The solid lithium battery discharge capacity that routine techniques makes is relatively low.
Claims (10)
1. a kind of production method of high specific energy solid lithium battery, which is characterized in that include the following steps：
Step 1：Positive electrode active materials, conductive agent, binding agent, pore creating material are dissolved in a solvent in proportion, are prepared into anode slurry
Material, by anode sizing agent coated on plus plate current-collecting body, thermally treated and roller process obtains positive plate；
Step 2：Negative material, conductive agent, binding agent, pore creating material are dissolved in a solvent in proportion, are prepared into negative electrode slurry,
Negative electrode slurry is coated on negative current collector, thermally treated and roller process obtains negative plate；
Step 3：Polymer dielectric, filler, lithium salts are dissolved in solvent in proportion, prepare the electricity of several different solid contents
Electrolyte solution；Electrolyte solution is sequentially coated to the side table of positive plate and negative plate according to the sequence of solid content from low to high
Face is heat-treated after coating every time, finally obtains the unilateral positive plate and negative plate for carrying electrolyte layer；
Step 4：By the way of winding or lamination, the unilateral side that step 3 is made carries the positive plate and cathode of electrolyte layer
Piece is assembled into all-solid lithium-ion battery battery core, and all-solid lithium-ion battery is obtained through hot pressing and encapsulation.
2. a kind of production method of high specific energy solid lithium battery according to claim 1, which is characterized in that step 1 and
Conductive agent described in step 2 is in conductive carbon black, electrically conductive graphite, acetylene black, Ketjen black, carbon fiber, carbon nanotube and graphene
One or more, the binding agent be polyvinylidene fluoride, polyvinyl alcohol, polytetrafluoroethylene (PTFE), sodium carboxymethylcellulose and fourth
One or more of benzene rubber, the pore creating material are ammonium hydrogen carbonate, ammonium acetate, one kind or several in ammonium nitrate and ammonium carbonate
Kind.
3. the production method of a kind of high specific energy solid lithium battery according to claim 1, which is characterized in that in step 1
The positive electrode active materials are one kind of LiFePO4, nickle cobalt lithium manganate, nickel cobalt lithium aluminate, nickel ion doped and lithium-rich anode material
Or it is several, the solvent is N-Methyl pyrrolidone, and the plus plate current-collecting body is aluminium foil；
Negative electrode active material described in step 2 be graphite, hard carbon and silica-base material one or more, the solvent for go from
Sub- water, the negative current collector are copper foil.
A kind of 4. production method of high specific energy solid lithium battery according to claim 1, which is characterized in that the anode
The percentage that each solid component accounts for total solid quality in slurry is：Positive electrode active materials 89%~97.9%, conductive agent 1%~
5%, binding agent 1%~3%, pore creating material 0.1%~3%, and anode sizing agent solid content is 30%~80%.
A kind of 5. production method of high specific energy solid lithium battery according to claim 1, which is characterized in that the cathode
The percentage that each solid component accounts for total solid quality in slurry is：Negative electrode active material 91%~98.4%, conductive agent 0.5%~
3%, binding agent 1%~3%, pore creating material 0.1%~3%, and negative electrode slurry solid content is 30%~60%.
6. the production method of a kind of high specific energy solid lithium battery according to claim 1, which is characterized in that in step 3
The polymer dielectric is polyethylene glycol oxide system, polymethyl methacrylate system, polyacrylonitrile, Kynoar system and gathers
One or more of vinyl chloride；The filler is nanometer Al2O3, Nano-meter SiO_22Inorganic filler or metal-organic framework material
Organic filler；The lithium salts is LiCF3SO3、LiClO4、LiPF6With it is one or more in LiI；The solvent is N- methyl pyrroles
Pyrrolidone.
A kind of 7. production method of high specific energy solid lithium battery according to claim 1, which is characterized in that the electrolysis
The percentage that each solid component of matter solution accounts for total solid quality is：Polymer dielectric 80%~98.5%, proportion of filler are
0.5%~10%；Lithium salts ratio is 1%~10%；The solid content of the electrolyte solution is 1%~80%.
8. the production method of a kind of high specific energy solid lithium battery according to claim 1, which is characterized in that in step 3
The thickness of polyelectrolyte floor coated in positive plate and negative plate surface is 5-50 μm, preferably 10-20 μm.
9. the production method of a kind of high specific energy solid lithium battery according to claim 1, which is characterized in that in step 1
80~140 DEG C of heat treatment temperature, processing time are 60~600s；60~120 DEG C of heat treatment temperature, processing time are in step 2
60~600s；60~120 DEG C of heat treatment temperature in step 3, processing time are 60~600s.
A kind of 10. production method of high specific energy solid lithium battery according to claim 1, which is characterized in that step 4
Hot pressing temperature in middle solid state lithium battery assembling process is 80~160 DEG C, and pressure is 5~10Mpa, and the time is 1~200s.
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| CN112103555A (en) * | 2020-10-21 | 2020-12-18 | 中国科学技术大学 | All-solid-state lithium ion battery and preparation method thereof |
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| CN113437352A (en) * | 2021-06-24 | 2021-09-24 | 珠海冠宇电池股份有限公司 | Battery and preparation method thereof |
| CN113437352B (en) * | 2021-06-24 | 2023-06-20 | 珠海冠宇电池股份有限公司 | Battery and preparation method thereof |
| CN113540394A (en) * | 2021-07-19 | 2021-10-22 | 远景动力技术(江苏)有限公司 | Positive plate and preparation method thereof, solid-state lithium ion battery, semi-solid-state lithium ion battery and preparation method thereof |
| CN113889598A (en) * | 2021-09-30 | 2022-01-04 | 四川大学 | Solid electrolyte and anode material integrated battery anode and preparation and application thereof |
| CN113889598B (en) * | 2021-09-30 | 2022-10-14 | 四川大学 | Solid electrolyte and anode material integrated battery anode and preparation and application thereof |
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| CN114068863A (en) * | 2021-11-12 | 2022-02-18 | 中国科学院过程工程研究所 | Electrode structure suitable for solid-state battery and construction method thereof |
| CN114725323A (en) * | 2022-05-16 | 2022-07-08 | 湖北亿纬动力有限公司 | Preparation method and application of negative pole piece |
| CN114725323B (en) * | 2022-05-16 | 2024-04-02 | 湖北亿纬动力有限公司 | Preparation method and application of negative electrode plate |
| CN115295764A (en) * | 2022-07-29 | 2022-11-04 | 江苏正力新能电池技术有限公司 | Negative pole piece, preparation method thereof and secondary battery |
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