CN107305942A - A kind of takeup type negative plate and battery core and lithium slurry battery provided with the negative plate - Google Patents
A kind of takeup type negative plate and battery core and lithium slurry battery provided with the negative plate Download PDFInfo
- Publication number
- CN107305942A CN107305942A CN201610256695.9A CN201610256695A CN107305942A CN 107305942 A CN107305942 A CN 107305942A CN 201610256695 A CN201610256695 A CN 201610256695A CN 107305942 A CN107305942 A CN 107305942A
- Authority
- CN
- China
- Prior art keywords
- negative plate
- battery
- negative
- lithium
- outermost
- Prior art date
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- Granted
Links
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 106
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 66
- 239000002002 slurry Substances 0.000 title claims abstract description 55
- 238000005452 bending Methods 0.000 claims abstract description 29
- 238000004804 winding Methods 0.000 claims abstract description 28
- -1 polypropylene Polymers 0.000 claims description 17
- 239000011248 coating agent Substances 0.000 claims description 16
- 238000000576 coating method Methods 0.000 claims description 16
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 14
- 229910052802 copper Inorganic materials 0.000 claims description 14
- 239000010949 copper Substances 0.000 claims description 14
- 239000003792 electrolyte Substances 0.000 claims description 14
- 239000000463 material Substances 0.000 claims description 12
- 229910052751 metal Inorganic materials 0.000 claims description 12
- 239000002184 metal Substances 0.000 claims description 12
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 11
- 239000007788 liquid Substances 0.000 claims description 10
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 10
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 10
- 239000003575 carbonaceous material Substances 0.000 claims description 9
- 238000007747 plating Methods 0.000 claims description 9
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 8
- 239000004744 fabric Substances 0.000 claims description 8
- 239000011368 organic material Substances 0.000 claims description 8
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 7
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 7
- 238000002347 injection Methods 0.000 claims description 7
- 239000007924 injection Substances 0.000 claims description 7
- 239000011135 tin Substances 0.000 claims description 7
- 229910052718 tin Inorganic materials 0.000 claims description 7
- 239000010406 cathode material Substances 0.000 claims description 6
- 239000000835 fiber Substances 0.000 claims description 6
- 239000010935 stainless steel Substances 0.000 claims description 6
- 229910001220 stainless steel Inorganic materials 0.000 claims description 6
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 5
- 239000004698 Polyethylene Substances 0.000 claims description 5
- 239000004917 carbon fiber Substances 0.000 claims description 5
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 5
- 229910052759 nickel Inorganic materials 0.000 claims description 5
- 229920000573 polyethylene Polymers 0.000 claims description 5
- 229910052709 silver Inorganic materials 0.000 claims description 5
- 239000004332 silver Substances 0.000 claims description 5
- 239000000126 substance Substances 0.000 claims description 5
- 239000010936 titanium Substances 0.000 claims description 5
- 229910052719 titanium Inorganic materials 0.000 claims description 5
- 229920000742 Cotton Polymers 0.000 claims description 4
- 229910000733 Li alloy Inorganic materials 0.000 claims description 4
- 239000004677 Nylon Substances 0.000 claims description 4
- 239000004743 Polypropylene Substances 0.000 claims description 4
- 229920004933 Terylene® Polymers 0.000 claims description 4
- 229920006231 aramid fiber Polymers 0.000 claims description 4
- 239000001989 lithium alloy Substances 0.000 claims description 4
- 229920001778 nylon Polymers 0.000 claims description 4
- 239000005416 organic matter Substances 0.000 claims description 4
- 239000005020 polyethylene terephthalate Substances 0.000 claims description 4
- 229920001155 polypropylene Polymers 0.000 claims description 4
- 239000011148 porous material Substances 0.000 claims description 4
- 239000012530 fluid Substances 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 2
- 229910052737 gold Inorganic materials 0.000 claims description 2
- 239000010931 gold Substances 0.000 claims description 2
- 239000007921 spray Substances 0.000 claims description 2
- 239000002131 composite material Substances 0.000 abstract description 21
- 238000000034 method Methods 0.000 description 11
- 150000001875 compounds Chemical class 0.000 description 10
- 229910052782 aluminium Inorganic materials 0.000 description 8
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 8
- 239000000843 powder Substances 0.000 description 8
- 239000004411 aluminium Substances 0.000 description 6
- 239000002245 particle Substances 0.000 description 6
- 230000004888 barrier function Effects 0.000 description 5
- 239000006258 conductive agent Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000005611 electricity Effects 0.000 description 4
- 239000007772 electrode material Substances 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 229910045601 alloy Inorganic materials 0.000 description 3
- 239000000956 alloy Substances 0.000 description 3
- 239000010405 anode material Substances 0.000 description 3
- 239000011230 binding agent Substances 0.000 description 3
- 239000011231 conductive filler Substances 0.000 description 3
- 210000005069 ears Anatomy 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 239000007774 positive electrode material Substances 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- LLYXJBROWQDVMI-UHFFFAOYSA-N 2-chloro-4-nitrotoluene Chemical compound CC1=CC=C([N+]([O-])=O)C=C1Cl LLYXJBROWQDVMI-UHFFFAOYSA-N 0.000 description 2
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 239000006229 carbon black Substances 0.000 description 2
- 235000013339 cereals Nutrition 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 238000003411 electrode reaction Methods 0.000 description 2
- 229910021389 graphene Inorganic materials 0.000 description 2
- 230000002687 intercalation Effects 0.000 description 2
- 238000009830 intercalation Methods 0.000 description 2
- 229910001416 lithium ion Inorganic materials 0.000 description 2
- 229910052748 manganese Inorganic materials 0.000 description 2
- 239000011572 manganese Substances 0.000 description 2
- 239000000320 mechanical mixture Substances 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000036647 reaction Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 241001442589 Convoluta Species 0.000 description 1
- 229910008416 Li-Ti Inorganic materials 0.000 description 1
- 229910052493 LiFePO4 Inorganic materials 0.000 description 1
- 229910000572 Lithium Nickel Cobalt Manganese Oxide (NCM) Inorganic materials 0.000 description 1
- 229910006861 Li—Ti Inorganic materials 0.000 description 1
- 229910018095 Ni-MH Inorganic materials 0.000 description 1
- 229910018477 Ni—MH Inorganic materials 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 239000004642 Polyimide Substances 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- GJEAMHAFPYZYDE-UHFFFAOYSA-N [C].[S] Chemical compound [C].[S] GJEAMHAFPYZYDE-UHFFFAOYSA-N 0.000 description 1
- QTHKJEYUQSLYTH-UHFFFAOYSA-N [Co]=O.[Ni].[Li] Chemical class [Co]=O.[Ni].[Li] QTHKJEYUQSLYTH-UHFFFAOYSA-N 0.000 description 1
- MWLDTCPVXXMIRC-UHFFFAOYSA-N [Li+].[O--].[O--].[O--].[Al+3].[Ni++] Chemical compound [Li+].[O--].[O--].[O--].[Al+3].[Ni++] MWLDTCPVXXMIRC-UHFFFAOYSA-N 0.000 description 1
- RLTFLELMPUMVEH-UHFFFAOYSA-N [Li+].[O--].[O--].[O--].[V+5] Chemical compound [Li+].[O--].[O--].[O--].[V+5] RLTFLELMPUMVEH-UHFFFAOYSA-N 0.000 description 1
- QSNQXZYQEIKDPU-UHFFFAOYSA-N [Li].[Fe] Chemical compound [Li].[Fe] QSNQXZYQEIKDPU-UHFFFAOYSA-N 0.000 description 1
- FBDMTTNVIIVBKI-UHFFFAOYSA-N [O-2].[Mn+2].[Co+2].[Ni+2].[Li+] Chemical compound [O-2].[Mn+2].[Co+2].[Ni+2].[Li+] FBDMTTNVIIVBKI-UHFFFAOYSA-N 0.000 description 1
- 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 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000011149 active material Substances 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- NDPGDHBNXZOBJS-UHFFFAOYSA-N aluminum lithium cobalt(2+) nickel(2+) oxygen(2-) Chemical compound [Li+].[O--].[O--].[O--].[O--].[Al+3].[Co++].[Ni++] NDPGDHBNXZOBJS-UHFFFAOYSA-N 0.000 description 1
- 229910003481 amorphous carbon Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- MTAZNLWOLGHBHU-UHFFFAOYSA-N butadiene-styrene rubber Chemical compound C=CC=C.C=CC1=CC=CC=C1 MTAZNLWOLGHBHU-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000001768 carboxy methyl cellulose Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- IVMYJDGYRUAWML-UHFFFAOYSA-N cobalt(ii) oxide Chemical class [Co]=O IVMYJDGYRUAWML-UHFFFAOYSA-N 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000008151 electrolyte solution Substances 0.000 description 1
- 235000013312 flour Nutrition 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 238000001802 infusion Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000003273 ketjen black Substances 0.000 description 1
- 229910002102 lithium manganese oxide Inorganic materials 0.000 description 1
- PAZHGORSDKKUPI-UHFFFAOYSA-N lithium metasilicate Chemical compound [Li+].[Li+].[O-][Si]([O-])=O PAZHGORSDKKUPI-UHFFFAOYSA-N 0.000 description 1
- 229910003002 lithium salt Inorganic materials 0.000 description 1
- 159000000002 lithium salts Chemical class 0.000 description 1
- 229910052912 lithium silicate Inorganic materials 0.000 description 1
- 229910000686 lithium vanadium oxide Inorganic materials 0.000 description 1
- ILXAVRFGLBYNEJ-UHFFFAOYSA-K lithium;manganese(2+);phosphate Chemical compound [Li+].[Mn+2].[O-]P([O-])([O-])=O ILXAVRFGLBYNEJ-UHFFFAOYSA-K 0.000 description 1
- VLXXBCXTUVRROQ-UHFFFAOYSA-N lithium;oxido-oxo-(oxomanganiooxy)manganese Chemical compound [Li+].[O-][Mn](=O)O[Mn]=O VLXXBCXTUVRROQ-UHFFFAOYSA-N 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 229910001092 metal group alloy Inorganic materials 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000007773 negative electrode material Substances 0.000 description 1
- 150000002825 nitriles Chemical class 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 229920002239 polyacrylonitrile Polymers 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920000570 polyether Polymers 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 239000005518 polymer electrolyte Substances 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 235000019812 sodium carboxymethyl cellulose Nutrition 0.000 description 1
- 229920001027 sodium carboxymethylcellulose Polymers 0.000 description 1
- PTISTKLWEJDJID-UHFFFAOYSA-N sulfanylidenemolybdenum Chemical compound [Mo]=S PTISTKLWEJDJID-UHFFFAOYSA-N 0.000 description 1
- 229910021653 sulphate ion Inorganic materials 0.000 description 1
- 238000010345 tape casting Methods 0.000 description 1
- KKEYFWRCBNTPAC-UHFFFAOYSA-L terephthalate(2-) Chemical compound [O-]C(=O)C1=CC=C(C([O-])=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-L 0.000 description 1
- 238000007751 thermal spraying Methods 0.000 description 1
- 238000009966 trimming Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- H01M10/0587—Construction or manufacture of accumulators having only wound construction elements, i.e. wound positive electrodes, wound negative electrodes and wound separators
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
- H01M4/134—Electrodes based on metals, Si or alloys
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/38—Selection of substances as active materials, active masses, active liquids of elements or alloys
- H01M4/381—Alkaline or alkaline earth metals elements
- H01M4/382—Lithium
-
- 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
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Secondary Cells (AREA)
- Battery Electrode And Active Subsutance (AREA)
- Connection Of Batteries Or Terminals (AREA)
Abstract
The present invention provides a kind of negative plate for lithium slurry battery, wherein negative plate forms multiple line parts and bending section by way of winding, the winding is wound in the way of spiral or arch, form to accommodate the gap of the positive plate of semisolid lithium slurry battery between each line part, wherein, the negative plate includes cell structure and multiple bodies containing lithium metal, body containing lithium metal is connected to the cell structure in spaced mode so that each body containing lithium metal is located in each line part of negative plate respectively after negative plate is wound.Using the takeup type negative plate of the present invention, the producing efficiency of semisolid lithium slurry battery can be effectively improved, avoid the problems such as the lead rupture caused by the sandwich anode composite piece comprising electrocondution slurry is wound, electrocondution slurry are revealed, effectively improving the service behaviour and security of battery simultaneously.In addition, present invention also offers the battery core provided with this winding negative plate and lithium slurry battery.
Description
Technical field
The invention belongs to electrochemical kinetics battery technology, and in particular to a kind of takeup type semisolid lithium slurry battery.
Background technology
Lithium ion battery is the novel high-energy battery using lithium intercalation compound as positive and negative pole material, with lead-acid battery, Ni-MH battery phase
Than with specific energy is high, voltage is high, self discharge is small, a series of advantage such as good cycle and long lifespan, increasingly by people
Concern.In recent years, lithium ion battery technology achieves fast development, has started to be applied in electric automobile.
Chinese invention patent 2016101285248, which is proposed, to be included inside a kind of semisolid lithium slurry battery, the anode and can flow
The electrocondution slurry of change, negative pole is metal lithium sheet or other containing lithium cathode sheet, can effectively increase battery charge capacity, improve battery
Security.But, according to existing battery package technique, battery assembling is typically only takeup type or stacked：(1) fold
Required precision of the chip battery to battery process equipment is higher, especially with the sandwich anode composite piece of battery core and containing lithium cathode sheet punching
The girth of trimming edge is multiplied, and causes easily to produce burr in film-making and assembling process, can further trigger short circuit problem, increases
Power up the security risk in pond；(2) barrier film of coiled battery is located at positive plate, containing separating both between lithium cathode sheet, barrier film,
Positive plate and wound together containing lithium cathode sheet, form battery core, because the anode layer thickness of lithium slurry battery is thicker, therefore electricity at present
The winding method in pond is difficult to be applied to lithium slurry battery；(3) current coiled battery, positive and negative electrode material can be by repeatedly folding
Folded winding, situations such as afflux situation that is easily caused the coming off of electrode material, winding face and plane is inconsistent, winding face generates heat,
So that battery security is reduced.
Further, since vehicle electrokinetic cell needs use in series or in parallel to provide enough power, this is accomplished by battery tool
There is good charge-discharge performance, while being easy to connection between battery, reduce the connection resistance of battery pack.Current majority coiling lithiums
A positive terminal and a negative terminal that battery is used are all located at the homonymy water conservancy diversion of battery, easily cause：(1) for battery
The larger lithium slurry battery of internal electrode response area, conveys electric current, electric current is led using a positive terminal and a negative terminal
Logical area and electrode reaction area ratio are smaller, and the heat dispersion and high-rate discharge ability of battery are poor；(2) gone here and there between battery,
Connection in parallel is inconvenient, is that follow-up automobile circuit is integrally assembled and made troubles, is made while increasing the directly contact of positive and negative terminal
Into the risk of short circuit.
The content of the invention
The problem of existing for more than, the present invention provides a kind of coiling lithium slurry battery, and it is sandwich compound that the battery includes several
Positive plate and in winding-structure contain lithium cathode sheet, form multiple line parts and multiple curved by way of winding containing lithium cathode sheet
Pars convoluta, sandwich anode composite piece is located between line part, forms battery core.Using the winding method, lithium slurry can be effectively improved
The producing efficiency of battery, at the same avoid the lead rupture caused by the sandwich anode composite piece comprising electrocondution slurry is wound,
The problems such as electrocondution slurry leakage, electrode material layer come off, effectively improves the service behaviour and security of battery.
It is as follows that the present invention provides technical scheme：
A kind of negative plate for lithium slurry battery is provided according to the present invention, wherein, the negative plate is formed by way of winding
Multiple line parts and multiple bending sections, form to accommodate the gap of the positive plate of lithium slurry battery between each line part,
The width in the gap is more than or equal to the thickness of the positive plate, and the length of the line part is more than or equal to the width of the positive plate,
Wherein, the negative plate includes cell structure and multiple bodies containing lithium metal, and the body containing lithium metal is connected in spaced mode
It is connected to cell structure so that each described body containing lithium metal is respectively positioned at each of the negative plate after negative plate is wound
In individual line part.Body containing lithium metal is as the negative material of cell reaction, and cell structure can be as negative current collector and negative
Pole lug, so as to play the effect of simplified battery structure.
The negative plate includes two layers of cell structure and the body containing lithium metal is arranged between two layers of cell structure, or
The negative plate includes one layer of cell structure and the body containing lithium metal is arranged at the corresponding of the cell structure both sides
Position, or the negative plate includes one layer of cell structure and the body containing lithium metal is arranged in the cell structure
Portion.
The body containing lithium metal by welding, spraying, bonding, electrochemical plating, chemical plating or machinery press-in etc. mode be fixed on institute
State cell structure.
The body containing lithium metal be thickness be preferably 0.02~2mm containing lithium titanate cathode material layer.The layer containing lithium titanate cathode material is gold
Belong to lithium, high lithium alloy or rich lithium inorganic non-metallic material.
The cell structure of the negative plate is the electron conducting layer that thickness is 0.01~1000 μm, and through hole porosity is 50~95%,
Average pore size is 1~500 μm, the material of the cell structure include copper, stainless steel, nickel, titanium, silver, tin, tin-coated copper,
Nickel-clad copper, silver-plated copper, preferably copper；Further, the surface of the cell structure is coated with conductive carbon material coating or passed through
Pressing or the mode composite metal lithium of electrochemical plating；
Or, the cell structure is that electric conduction of carbon fiber cloth, wire and organic fiber silk hybrid conductive cloth or surface coating are led
Electrical carbon material coating or the porous organic material for being coated with metallic film, the porous organic material include natural linen-cotton, terylene,
Aramid fiber, nylon, polypropylene, polyethylene, polytetrafluoroethylene (PTFE) and the good organic matter of other electrolyte resistances energy.
The winding is to wind or wind in arcuate manner in a helical pattern.It should be understood that volume mentioned herein
Around being not limited to both forms, as long as cause negative plate formation line part with bending section by winding and line part it
Between formed to accommodate the gap of positive plate.
Multiple negative lugs can be provided with the unilateral edge or opposite side edge of the negative plate, when the negative plate winds it
The negative lug is located in each line part of the negative plate afterwards.Wherein it is preferred to, after negative plate is wound, it is located at
The position of each negative lug of negative plate the same side is located along the same line.Furthermore it is preferred that after negative plate is wound,
Position positioned at the negative lug of negative plate both sides is mutually corresponded to.
When the negative plate is wound in a helical pattern, each described bending section positioned at the line part side connects each other
Touch, and also contacted each other positioned at each described bending section of the line part opposite side.When the negative plate is with arch
When mode is wound, the negative plate includes being located at the outermost two outermost line parts of the negative plate, the outermost straight line
The length in portion is more than or equal to the length and the height sum of battery battery core of the line part of center section, and the outermost line part passes through
Outermost horizontal linear portion and outermost vertical straight line portion are bent to form, wherein, an outermost vertical straight line portion is with being located at
Each described bending section of the negative plate side makes electrical contact with and another described outermost vertical straight line portion is with being located at the negative pole
Each described bending section electrical contact of piece opposite side, if the length of outermost line part is more than the length of the line part of center section
With the height sum of battery battery core, then bending the end in the outermost vertical straight line portion formed after outermost line part can use
Make the negative current collector and negative lug of the negative plate；Or, it is described negative when the negative plate is wound in arcuate manner
Pole piece includes being located at the outermost two outermost line parts of the negative plate, during the length of the outermost line part is more than or equal to
Between part line part length and the height sum of battery battery core, one of them described outermost line part is by being bent to form most
Outside horizontal linear portion and outermost vertical straight line portion and the outermost vertical straight line portion with positioned at each of the negative plate side
The individual bending section electrical contact, another described outermost line part is used as the negative current collector and negative lug of the negative plate.
A kind of battery core is provided according to the present invention, the battery core includes the negative plate as described above for lithium slurry battery and is used for
The positive plate of lithium slurry battery, the positive plate is arranged in the gap formed between the line part of the negative plate, with
Form the negative plate and intersect stacked structure with the positive plate.
The positive plate is provided with positive pole ear, and two porous anode collectors of the positive pole ear and sandwich anode composite piece are electrically connected
Connect, and extend from sandwich anode composite piece, all positive pole ears electrically connect and extend battery core in battery core；It is described to contain cathode of lithium
Piece is provided with negative lug, and the negative lug is electrically connected with negative current collector, and all negative lugs are electrically connected and extended in battery core
Battery core.
The structure of the positive plate can be sandwich anode composite piece.The structure of sandwich anode composite piece is provided by way of example,
In order to more fully understand the present invention.The sandwich anode composite piece includes porous afflux anode layer and electrocondution slurry, porous afflux
Anode layer is made up of the single or double coating porous anode material layer of porous anode collector, two porous afflux anode layers
Between be filled with the electrocondution slurry of 0~5mm thickness, part or all of electrocondution slurry penetrated into the hole of porous afflux anode layer,
Form sandwich anode composite piece；The sandwich anode composite piece is surrounded by insulated enclosure frame, and the insulated enclosure frame is in " returning "
Shape, and with porous afflux anode layer edge fixing seal, prevent electrocondution slurry from being revealed from the sandwich side of anode composite piece four.It should refer to
Go out, positive plate herein can be any positive plate for lithium slurry battery, and its structure is not limited to above-mentioned example.
The porous afflux anode layer thickness is 0.05~2.5mm, and porosity is 30%~90%, average pore size scope 0.001
μm~10 μm；Electrolyte and/or polymer dielectric, the polymer dielectric are full of in the hole of the sandwich anode composite piece
For the compound gel polymer electrolyte composite constituted in polymeric matrix, liquid organic plasticizers and the part of lithium salts three.It is described
Porous anode collector is the porous mixture of conductive filler and binding agent, wherein, conductive filler is carbon black, CNT, carbon
Fiber, graphene, titanium valve, aluminium powder, silver powder, alloy aluminium powder, stainless steel powder or silver powder, rich lithium silica flour, lithium alloys powder class
One or more in metal alloy conductive particle, or carbon material containing lithium, binding agent is polyvinyl chloride, polyethylene, poly- third
Alkene, polystyrene, polytetrafluoroethylene (PTFE), polyester terephthalate, polyamide, polyimides, polyethers nitrile, PMA,
One or more in Kynoar, polyurethane, polyacrylonitrile, butadiene-styrene rubber, sodium carboxymethylcellulose, improved polyalkene,
The mass fraction of conductive filler is not less than 70%；Or, the porous anode collector is the metal conducting layer with loose structure,
Metal conducting layer is that the metal wire knitted of cell structure, wire or surface with conductive carbon material coating is formed, and mesh is side
Shape, rhombus, rectangle or polygon etc.；Or, the metal conducting layer is the porous foam metal layer with loose structure,
Or formed for expanded metal or metal foil through mechanical stamping or chemical attack, the material of metal conducting layer is aluminium, alloy aluminum,
Stainless steel, silver, tin or titanium, preferably aluminium；Or, the porous anode collector is conductive carbon fibre conductive fabric, wire
With organic fiber silk hybrid conductive cloth, surface coating conductive carbon material coating or the porous organic material for being coated with metallic film, institute
Stating porous organic material includes natural linen-cotton, terylene, aramid fiber, nylon, polypropylene fibre, polyethylene, polytetrafluoroethylene (PTFE) and other resistance to electricity
Solve liquid organic matter of good performance, the material of the wire and plated metal-plated film is aluminium, alloy aluminum, stainless steel or silver,
Preferably aluminium；Or, the porous anode collector by above-mentioned several collectors it is any two or more constitute it is compound
Collector.
The porous anode material layer is positive electrode active materials:Conductive agent:Binding agent is 59~98% according to mass ratio:1~
40%:1~10% is well mixed, and is coated in the drying drying tabletting of porous anode collection liquid surface.Further, the positive pole is lived
Property material be LiFePO4, lithium manganese phosphate, lithium metasilicate, ferric metasilicate lithium, sulphate cpd, sulphur carbon complex, sulphur simple substance,
Titanium sulphur compound, molybdenum sulfur compound, iron sulphur compound, doped lithium manganese oxide, lithium and cobalt oxides, Li-Ti oxide, lithium vanadium
Oxide, Li, Ni, Mn oxide, lithium nickel cobalt oxides, lithium nickel cobalt aluminum oxide, lithium nickel aluminum oxide, lithium nickel cobalt manganese oxide,
Lithium iron Ni, Mn oxide and other one or more that can be in lithium intercalation compound.
The electrocondution slurry includes electrolyte and the positive conductive particle that can be flowed in the electrolytic solution, wherein, positive conductive
The mass ratio of grain and electrocondution slurry is 10%~90%, and average grain diameter is 0.5 μm~500 μm；The positive conductive particle is
The one of the conductive agents such as carbon black, Ketjen black, graphene, CNT, carbon fiber, amorphous carbon and all kinds of metallic conduction particles
Plant or several compound, compound mode includes Surface coating, bonding or mechanical mixture；Or, the positive conductive particle is just
The compound or mixture of pole active material and above-mentioned all kinds of conductive agents, wherein, the mass ratio of positive electrode active materials and conductive agent is
0~98%, it is combined or the mode of mixing includes Surface coating, bonding or mechanical mixture.
It should be pointed out that positive plate herein can be any positive plate for lithium slurry battery, its structure and material is not limited to
Above-mentioned example.
There is provided a kind of lithium slurry battery according to the present invention, the battery include battery core as described above, battery container, positive terminal,
Negative terminal, liquid injection port and electrolyte, wherein the battery core is arranged in the battery container, the positive pole ear of the battery core
The positive terminal is electrically connected to, the negative lug of the battery core is electrically connected to the negative terminal, the positive terminal and negative pole
Terminal stretches out and the Fluid Sealing between the battery container from the battery container, by the liquid injection port to the battery case
Electrolyte is injected in body causes the battery core to be placed in electrolyte.
Advantage of the invention is that：
1) battery core is wound using negative plate, and positive plate is arranged in the gap formed between the line part of the negative plate,
Intersect stacked structure to form the negative plate and the positive plate, the making effect of semisolid lithium slurry battery can be effectively improved
Rate, while avoiding the lead rupture caused by the sandwich anode composite piece comprising electrocondution slurry is wound, electrocondution slurry from letting out
The problems such as dew, electrode material layer come off, effectively improves the service behaviour and security of battery；
2) body containing lithium metal as cell reaction negative material, and cell structure can as negative current collector and negative lug,
Catchment effect is uniform, it is to avoid situations such as high rate charge-discharge causes to generate heat, and plays the effect of simplified battery structure.
Brief description of the drawings
Fig. 1 is the schematic sectional view according to lithium slurry battery of the present invention；
Fig. 2 is the schematic diagram of the battery core according to the present invention, and wherein positive pole ear and negative lug is located at the same side of battery core；
Fig. 3 is the schematic diagram of the battery core according to the present invention, and wherein positive pole ear and negative lug is located at the opposite side of battery core；
Fig. 4 a, 4b are the schematic diagram of positive plate, and wherein Fig. 4 a are the sectional view of positive plate, and Fig. 4 b are one or both sides provided with just
The schematic perspective view of the positive plate of pole lug；
Fig. 5 a, 5b, 5c are the cross-sectional view of the negative plate according to the present invention；
Fig. 6 a, 6b, 6c, 6d are the floor map of the negative plate according to the present invention；
Fig. 7 is the first embodiment of the winding negative plate according to the present invention；
Fig. 8 is the second embodiment of the winding negative plate according to the present invention；
Fig. 9 is the 3rd embodiment of the winding negative plate according to the present invention；
Figure 10 is the fourth embodiment of the winding negative plate according to the present invention；And
Figure 11 a, 11b are the schematic diagram that process is bent according to the outermost line part of the negative plate of the present invention.
Reference numerals list
1 --- lithium slurry battery
2 --- battery container
3 --- positive terminal
4 --- negative terminal
5 --- battery core
6 --- liquid injection port
7 --- negative plate
701 --- negative lug
702 --- line part
703 --- bending section
704 --- gap
706 --- gap
707 --- cell structure
708 --- body containing lithium metal
709 --- the end of cell structure
7010 --- outermost line part
7011 --- outermost horizontal linear portion
7012 --- outermost vertical straight line portion
71 --- the first embodiment of negative plate
72 --- the second embodiment of negative plate
73 --- the 3rd embodiment of negative plate
74 --- the fourth embodiment of negative plate
8 --- positive plate
801 --- positive pole ear
802 --- porous afflux anode layer
803 --- electrocondution slurry
804 --- barrier film
805 --- insulated enclosure frame
Embodiment
Below in conjunction with accompanying drawing, by embodiment, the present invention will be further described.
Fig. 1 is the coiling lithium slurry battery 1 according to the present invention, and the battery includes battery container 2, positive terminal 3, negative pole end
Son 4, battery core 5, liquid injection port 6 and electrolyte.Wherein, battery core 5 is arranged in battery container 2, multiple positive poles of battery core 5
Lug is electrically connected to positive terminal 3, and multiple negative lugs of battery core 5 are electrically connected to negative terminal 4, positive terminal 3 and negative pole end
Son 4 stretches out and the Fluid Sealing between battery container 2 from battery container 2.Injected by liquid injection port 6 into battery container 2
Electrolyte, makes battery core 5 be placed in electrolyte.
Fig. 2, Fig. 3 are the battery core 5 of the coiling lithium slurry battery according to the present invention, and the battery core 5 includes the He of takeup type negative plate 7
Positive plate 8.The one side of positive plate 8 or both sides are provided with positive pole ear 801；The one side of negative plate 7 or both sides are provided with negative pole pole
Ear 701 or it is not provided with negative lug.Wherein, as shown in fig. 7, negative plate 7 is molded by way of winding so that negative
Pole piece includes multiple line parts 702 and multiple bending sections 703, and certain interval 704 is formed between each line part.Each positive pole
Piece 8 is respectively arranged in each gap portion, so that form positive plate intersects stacked structure with negative plate.
When the one side of each positive plate 8 is provided with positive pole ear, one group of positive pole ear of multiple positive plates can be located at battery core 5
Side；Now when being provided with multiple negative lugs in the one side of overall negative plate 7, negative lug 701 can be located at battery core 5
With positive pole ear identical side or positioned at the side relative with positive pole ear of battery core 5.In addition, when the two of each positive plate 8
When side is provided with positive pole ear, two groups of positive pole ears of multiple positive plates can be located at the both sides of battery core 5；Now when in overall negative pole
When the one side of piece 7 sets multiple negative lugs, negative lug 701 can be located at the wherein side provided with positive pole ear of battery core 5,
When setting multiple negative lugs simultaneously in the both sides of overall negative plate 7, negative lug 701 can be located at being provided with just for battery core 5
The both sides of pole lug.When positive pole ear is located at the side of battery core and negative lug is located at the opposite side of battery core (as shown in Figure 3),
Current lead-through area and electrode reaction area ratio are larger, and the heat dispersion of battery improves, be easy to series and parallel between battery
Connection, while avoiding the risk that the directly contact of positive and negative terminal causes short circuit.In addition, can also be not provided with bearing on negative plate 7
Pole lug, now the cell structure 707 of negative plate serve as negative current collector and carry out afflux, and with the electricity of negative terminal 4 of battery
Connection.Such negative plate structure is simple, and it is time saving convenient to process.
The embodiment of positive plate after assembling is as shown in Figure 4.Wherein, as shown in fig. 4 a, positive plate may include two porous affluxs
Anode layer 802, electrocondution slurry 803, two barrier films 804.Positive pole chamber is formed between two porous afflux anode layers 802 and is filled
There is electrocondution slurry 803, part or all of electrocondution slurry is penetrated into the hole of porous afflux anode layer 802, form sandwich compound
Positive plate.Barrier film 804 of the both sides of sandwich anode composite piece provided with the electronic isolation being in close contact.In addition, as shown in Figure 4 b,
Sandwich anode composite piece includes positive pole ear 801, and is surrounded by insulated enclosure frame 805 in sandwich anode composite piece, prevents from leading
Plasma-based material is revealed from the sandwich side of anode composite piece four.Porous afflux anode layer 802 can by porous anode collector one side or double
Face coating porous anode material layer is constituted；Or porous afflux anode layer is the mixed of electrode active material, conductive agent and/or adhesive
Compound is fixed on the two of separation layer by modes such as the tape casting, infusion process or showering, thermal spraying, brushing or bonding, two-sided roll-ins
Side.Positive plate can also be the other structures that use in this area, as long as positive plate can be arranged at the gap of the negative plate of winding
In 704.As shown in Figure 4 b, positive plate can be provided only with a positive pole ear 801, or positive plate can be provided with two
Positive pole ear and the two positive pole ears are located at the opposite sides of positive plate.
As shown in figure 5, negative plate includes cell structure 707 and multiple bodies containing lithium metal 708, the body containing lithium metal is with phase
The mode being mutually spaced is arranged on cell structure 707 so that each described 708 points of body containing lithium metal after negative plate is wound
It Wei Yu not intersect in each line part 702 of negative plate and with positive plate stacked.Wherein, negative plate can include two layers of porous knot
Structure body 707 and body containing lithium metal 708 is arranged between two layers of cell structure 707 (as shown in Figure 5 a), or negative plate
The corresponding position of the both sides of cell structure 707 is arranged at including one layer of cell structure 707 and body containing lithium metal 708
Put (as shown in Figure 5 b).Body containing lithium metal by welding, spraying, bonding, electrochemical plating, chemical plating or machinery press-in etc. side
Formula is fixed on cell structure.In addition, such as when by lithium powder or powder containing lithium metal to spray mode be connected to cell structure 707
To be formed during the body 708 containing lithium metal, the particle of lithium powder or the powder containing lithium metal can be penetrated into inside cell structure 707, and it is horizontal
Cross section structure is as shown in Figure 5 c.Herein it should be understood that, although Fig. 5 c show body containing lithium metal 708 from the both sides of cell structure
It is prominent, but it is to be understood that herein body containing lithium metal 708 can with it is completely set up inside body containing lithium metal 707 without protruding from
The surface of cell structure, that is to say, that body containing lithium metal described in when negative plate includes one layer of cell structure is arranged at described
The inside of cell structure.Body containing lithium metal is that thickness contains lithium titanate cathode material layer for 0.02~2mm.It is containing lithium titanate cathode material layer
Lithium metal, high lithium alloy or rich lithium inorganic non-metallic material.The cell structure of negative plate is the electricity that thickness is 0.01~1000 μm
Conducting layer, through hole porosity is 50~95%, and average pore size is 1~500 μm, the material of the cell structure include copper,
Stainless steel, nickel, titanium, silver, tin, tin-coated copper, nickel-clad copper, silver-plated copper, preferably copper；Further, the cell structure
Surface be coated with conductive carbon material coating or pressing or electrochemical plating by way of composite metal lithium.Or, the porous knot
Structure body is electric conduction of carbon fiber cloth, wire and organic fiber silk hybrid conductive cloth or surface coating conductive carbon material coating or is coated with
The porous organic material of metallic film, the porous organic material include natural linen-cotton, terylene, aramid fiber, nylon, polypropylene,
Polyethylene, polytetrafluoroethylene (PTFE) and the good organic matter of other electrolyte resistances energy.
As shown in fig. 6, negative plate can be provided with negative lug (Fig. 6 a-6c) or be not provided with negative lug (Fig. 6 d).When negative
When pole piece is provided with negative lug, negative plate can be integrally formed with negative lug 701, and negative lug can also be by welding, gluing
The mode such as connect and be connected to negative plate.Negative lug 701 can be provided only on the side (as shown in Fig. 6 a, 6b) of overall negative plate,
Or negative lug 701 can be arranged on the both sides (as fig. 6 c) of overall negative plate.When positive plate and negative plate are in homonymy
During afflux, the width of positive pole ear and negative lug sets narrower, to draw positive pole ear simultaneously in the same side and to bear
Pole lug 701.When positive plate and negative plate are in two-side current collecting, the width of positive pole ear and negative lug can set wider,
Positive pole ear is drawn from the both sides of battery core 5 respectively with negative lug 701.When negative lug 701 is arranged on the both sides of negative plate,
The setting of both sides negative lug can be with corresponding, or the setting of both sides negative lug can be not correspond to.As shown in fig 6d, when
When negative plate is not provided with negative lug, the end 709 --- as is shown in phantom lines --- of the cell structure of negative plate is just used as
The negative lug of negative plate.
As is seen in figs 7-10, the overall negative plate 7 of plane is wound.
Fig. 7 shows the first embodiment 71 of the negative plate according to the present invention.Negative plate is wound with spiral fashion, will be negative
Pole piece is divided into multiple line parts 702 and multiple bending sections 703.Formed to accommodate the gap of positive plate between each line part
704, the width in the gap is more than or equal to the thickness of positive plate.The number for the positive plate that the quantity in gap 704 is inserted according to actual needs
Measure to determine.Gap 706 is also formed between each bending section 703, the width in the gap 706 and the gap of line part 702
704 width can be with identical or can be different.The length of line part 702 is more than or equal to the width of positive plate.
Fig. 8 shows the second embodiment 72 of the negative plate according to the present invention.The negative plate and first embodiment of the second embodiment
Negative plate structure it is substantially similar, its difference is, wind negative plate when, only negative plate each line part 702
Between leave gap 704, and do not leave gap between each bending section 703 of negative plate.Afflux so can be caused more
Uniformly, hot uniformity is more preferable.
Fig. 9 shows the 3rd embodiment 73 of the negative plate according to the present invention.Negative plate is wound in arcuate manner, will be negative
Pole piece is divided into multiple line parts 702 and bending section 703.Form to accommodate the gap 704 of positive plate between each line part,
The width in the gap is more than or equal to the thickness of positive plate.The quantity for the positive plate that the quantity in gap 704 is inserted according to actual needs is come
It is determined that.The same length of each line part 702, and more than or equal to the width of positive plate.
Figure 10 shows the fourth embodiment 74 of the negative plate according to the present invention.The negative plate of the fourth embodiment and the 3rd is implemented
The structure of the negative plate of example is substantially similar, and its difference is, when winding negative plate, outermost two positioned at negative plate
The length of outermost line part 7010 is more than the length of the line part 702 of center section.Further, the outermost of negative plate is straight
The length in line portion 7010 is greater than or approximately equal to the length of the line part 702 of center section and the height sum of battery core 5.As schemed
Shown in 11, outermost line part 7010 is bent, so as to form outermost horizontal linear portion 7011 and outermost is straight vertically
Line portion 7012, outermost vertical straight line portion 7012 is contacted with each bending section 703 of negative plate.Afflux so can be caused more
Plus it is uniform, hot uniformity is more preferable.When negative plate winds even-times, two outermost line parts 7010 are towards opposite side, now
Two outermost line parts can respectively be bent and be contacted respectively with positioned at the bending section 703 of the both sides of battery core 5, i.e. one
The outermost vertical straight line portion 7012 of outermost line part 7010 with positioned at the side of battery core 5 each bending section 703 contact and
The outermost vertical straight line portion 7012 of another outermost line part 7010 and each bending section 703 positioned at the opposite side of battery core 5
Contact.If the length of outermost line part 7010 is more than the length and the height sum of battery battery core of the line part of center section,
The end in the outermost vertical straight line portion 7012 then formed after bending outermost line part will be protruding from battery core, stretching
The end in outermost vertical straight line portion may be used as the negative current collector and negative lug of the negative plate.When negative plate winds odd number
When secondary, the outer end of two outermost line parts 7010 can now enter an outermost line part 7010 towards the same side
Row bends and contacted with positioned at the bending section 703 of the side of battery core 5, and by another outermost line part 7010 as negative plate
Negative lug.So can be without setting negative lug on negative plate.So as to reduce difficulty of processing and improve processing effect
Rate.
Negative plate 7 is to be molded in a winding manner.Wherein it is possible to wind negative plate around positive plate 8.That is, first existing
Positive plate 8 is set on the line part 702 of negative plate, then negative plate is wound around positive plate and then bending section 703 is formed
With another line part 702.In the way of positive plate and negative plate are alternately superimposed on, negative plate is wound around multiple positive plates,
It is finally completed whole windings of negative plate.Wherein, negative plate can also be wound in advance, formed multiple line parts 702 with
And multiple bending sections 703, it is arranged at after whole windings of negative plate are completed, then by each positive plate positioned at negative plate straight line
In each gap 704 between portion 702.Above-mentioned winding can be screw winding or can be arch winding, can also
It is other winding methods.
The specific embodiment of the invention is not limited to the present invention.Any those skilled in the art, are not departing from the present invention
Under technical scheme ambit, many possibility are all made to technical solution of the present invention using the methods and techniques content of the disclosure above
Variation and modification, or be revised as the equivalent embodiment of equivalent variations.Therefore, every content without departing from technical solution of the present invention,
Technical spirit according to the present invention still falls within this hair to any simple modifications, equivalents, and modifications made for any of the above embodiments
In the range of bright technical scheme protection.
Claims (11)
1. a kind of negative plate for lithium slurry battery, it is characterised in that the negative plate is formed multiple straight by way of winding
Line portion and multiple bending sections, the winding are to wind or wind in arcuate manner in a helical pattern, in each line part
Between form to accommodate the gap of the positive plate of lithium slurry battery, the width in the gap is more than or equal to the thickness of the positive plate,
The length of the line part is more than or equal to the width of the positive plate, wherein, the negative plate includes cell structure and multiple contained
Lithium metal body, the body containing lithium metal is connected to the cell structure in spaced mode so that when negative plate volume
Each described body containing lithium metal is located in each line part of the negative plate respectively after.
2. the negative plate according to claim 1 for lithium slurry battery, wherein, the negative plate includes two layers of porous knot
The structure body and body containing lithium metal is arranged between two layers of cell structure, or the negative plate include one layer of cell structure
And the body containing lithium metal is arranged at the corresponding position of the cell structure both sides, or the negative plate includes one layer
Cell structure and the body containing lithium metal are arranged at the inside of the cell structure.
3. the negative plate according to claim 1 or 2 for lithium slurry battery, wherein, the body containing lithium metal passes through weldering
Connect, spray, being bonded, the mode that electrochemical plating, chemical plating or machinery are pressed into is fixed on the cell structure.
4. the negative plate according to claim 1 or 2 for lithium slurry battery, wherein, the body containing lithium metal is thickness
Be 0.02~2mm containing lithium titanate cathode material layer, the layer containing lithium titanate cathode material is lithium metal, high lithium alloy or the rich inorganic non-gold of lithium
Belong to material.
5. the negative plate according to claim 1 or 2 for lithium slurry battery, wherein, the cell structure is thickness
For 0.01~1000 μm of electron conducting layer, through hole porosity is 50~95%, and average pore size is 1~500 μm, the porous knot
The material of structure body includes copper, stainless steel, nickel, titanium, silver, tin, tin-coated copper, nickel-clad copper, silver-plated copper, and further,
The surface of the cell structure can be coated with conductive carbon material coating or the composition metal by way of pressing or electrochemical plating
Lithium；
Or, the cell structure is that electric conduction of carbon fiber cloth, wire and organic fiber silk hybrid conductive cloth or surface coating are led
Electrical carbon material coating or the porous organic material for being coated with metallic film, the porous organic material include natural linen-cotton, terylene,
Aramid fiber, nylon, polypropylene, polyethylene, polytetrafluoroethylene (PTFE) and the good organic matter of other electrolyte resistances energy.
6. the negative plate according to claim 1 or 2 for lithium slurry battery, wherein, in the single side of the negative plate
Edge or opposite side edge are provided with multiple negative lugs, and the negative lug is located at the negative plate after negative plate is wound
Each line part in.
7. the negative plate according to claim 1 or 2 for lithium slurry battery, wherein, when the negative plate is with spiral
When mode is wound, each described bending section positioned at the line part side is contacted each other, and another positioned at the line part
Each described bending section of side is also contacted each other.
8. the negative plate according to claim 1 or 2 for lithium slurry battery, wherein, when the negative plate is with arch
When mode is wound, the negative plate includes being located at the outermost two outermost line parts of the negative plate, the outermost straight line
The length in portion is more than or equal to the length and the height sum of battery battery core of the line part of center section, two outermost line parts
By being bent to form outermost horizontal linear portion and outermost vertical straight line portion, wherein, outermost vertical straight line portion with
Each bending section electrical contact and another described outermost vertical straight line portion positioned at the negative plate side is described with being located at
Each described bending section electrical contact of negative plate opposite side.
9. the negative plate according to claim 1 or 2 for lithium slurry battery, wherein, when the negative plate is with arch
When mode is wound, the negative plate includes being located at the outermost two outermost line parts of the negative plate, the outermost straight line
The length in portion is more than or equal to the length and the height sum of battery battery core of the line part of center section, and one of them described outermost is straight
Line portion is by being bent to form outermost horizontal linear portion and outermost vertical straight line portion and the outermost vertical straight line portion with being located at
Each described bending section electrical contact of the negative plate side, another described outermost line part is used as the negative pole of the negative plate
Lug.
10. a kind of battery core, the battery core includes the negative plate as claimed in claim 1 for lithium slurry battery and for lithium
The positive plate of slurry battery, the positive plate is arranged in the gap formed between the line part of the negative plate, with shape
Intersect stacked structure into the negative plate and the positive plate.
11. a kind of lithium slurry battery, the battery include battery core according to claim 10, battery container, positive terminal,
Negative terminal, liquid injection port and electrolyte, wherein the battery core is arranged in the battery container, the positive pole ear of the battery core
The positive terminal is electrically connected to, the negative lug of the battery core is electrically connected to the negative terminal, the positive terminal and negative pole
Terminal stretches out and the Fluid Sealing between the battery container from the battery container, by the liquid injection port to the battery case
Electrolyte is injected in body causes the battery core to be placed in electrolyte.
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| CN201610256695.9A CN107305942B (en) | 2016-04-22 | 2016-04-22 | Winding type negative plate, battery cell with same and lithium slurry battery |
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| CN201610256695.9A CN107305942B (en) | 2016-04-22 | 2016-04-22 | Winding type negative plate, battery cell with same and lithium slurry battery |
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| CN110010841A (en) * | 2019-03-26 | 2019-07-12 | 深圳欣旺达智能科技有限公司 | The manufacture craft and battery core pole piece of battery core positive and negative anodes pole piece |
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| CN110504497A (en) * | 2018-05-18 | 2019-11-26 | 北京好风光储能技术有限公司 | Connecting device for maintaining and regenerating slurry battery and slurry battery system |
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| CN111193074B (en) * | 2019-12-11 | 2021-06-29 | 国网经济技术研究院有限公司 | Detachable lithium slurry battery's compound unit and contain its lithium slurry battery |
| CN111193074A (en) * | 2019-12-11 | 2020-05-22 | 国网经济技术研究院有限公司 | Detachable lithium slurry battery's compound unit and contain its lithium slurry battery |
| CN114402464A (en) * | 2020-04-27 | 2022-04-26 | 株式会社Lg新能源 | Negative electrode for lithium secondary battery comprising primer-coated current collector and method for manufacturing same |
| CN114628689A (en) * | 2020-12-10 | 2022-06-14 | 北京好风光储能技术有限公司 | Porous current collector and battery adopting same |
| CN114628689B (en) * | 2020-12-10 | 2023-11-14 | 好风光储能技术(成都)有限公司 | Porous current collector and battery adopting same |
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| CN115207365A (en) * | 2021-04-02 | 2022-10-18 | 麻省固能控股有限公司 | Anode fabrication by pattern lamination, anodes fabricated thereby, and electrochemical devices incorporating such anodes |
| CN114824508A (en) * | 2022-05-17 | 2022-07-29 | 宁德新能源科技有限公司 | Electrochemical device and electronic device including the same |
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