WO2001084659A1 - Generateur electrochimique a electrolyte polymerique tout solide comprenant des polymeres fluores - Google Patents
Generateur electrochimique a electrolyte polymerique tout solide comprenant des polymeres fluores Download PDFInfo
- Publication number
- WO2001084659A1 WO2001084659A1 PCT/FR2001/001379 FR0101379W WO0184659A1 WO 2001084659 A1 WO2001084659 A1 WO 2001084659A1 FR 0101379 W FR0101379 W FR 0101379W WO 0184659 A1 WO0184659 A1 WO 0184659A1
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- WIPO (PCT)
- Prior art keywords
- solid
- electrochemical generator
- generator according
- polymer electrolyte
- mass
- Prior art date
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- 239000005518 polymer electrolyte Substances 0.000 title claims abstract description 31
- 229920002313 fluoropolymer Polymers 0.000 title claims abstract description 26
- 239000000463 material Substances 0.000 claims abstract description 18
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 claims abstract description 10
- 229940006487 lithium cation Drugs 0.000 claims abstract description 9
- 229910003002 lithium salt Inorganic materials 0.000 claims abstract description 6
- 159000000002 lithium salts Chemical class 0.000 claims abstract description 6
- 239000007787 solid Substances 0.000 claims description 35
- 229910052744 lithium Inorganic materials 0.000 claims description 24
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 23
- 150000001875 compounds Chemical class 0.000 claims description 15
- 229920000642 polymer Polymers 0.000 claims description 15
- 239000003792 electrolyte Substances 0.000 claims description 14
- 239000004811 fluoropolymer Substances 0.000 claims description 14
- 239000011149 active material Substances 0.000 claims description 12
- 239000003963 antioxidant agent Substances 0.000 claims description 9
- 230000003078 antioxidant effect Effects 0.000 claims description 8
- 229920000570 polyether Polymers 0.000 claims description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 7
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 7
- 239000004721 Polyphenylene oxide Substances 0.000 claims description 6
- 239000002131 composite material Substances 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 5
- AZQWKYJCGOJGHM-UHFFFAOYSA-N 1,4-benzoquinone Chemical compound O=C1C=CC(=O)C=C1 AZQWKYJCGOJGHM-UHFFFAOYSA-N 0.000 claims description 4
- 239000002033 PVDF binder Substances 0.000 claims description 4
- 239000000395 magnesium oxide Substances 0.000 claims description 4
- 229920002620 polyvinyl fluoride Polymers 0.000 claims description 4
- 229920002981 polyvinylidene fluoride Polymers 0.000 claims description 4
- 229910052723 transition metal Inorganic materials 0.000 claims description 4
- 150000003624 transition metals Chemical class 0.000 claims description 4
- -1 PHFP Polymers 0.000 claims description 3
- 229920003171 Poly (ethylene oxide) Polymers 0.000 claims description 3
- 239000006230 acetylene black Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 claims description 3
- 239000003513 alkali Substances 0.000 claims description 2
- 229910052783 alkali metal Inorganic materials 0.000 claims description 2
- 150000001340 alkali metals Chemical class 0.000 claims description 2
- 229910052799 carbon Inorganic materials 0.000 claims description 2
- IVMYJDGYRUAWML-UHFFFAOYSA-N cobalt(ii) oxide Chemical class [Co]=O IVMYJDGYRUAWML-UHFFFAOYSA-N 0.000 claims description 2
- 238000001125 extrusion Methods 0.000 claims description 2
- 229910002804 graphite Inorganic materials 0.000 claims description 2
- 239000010439 graphite Substances 0.000 claims description 2
- 125000000687 hydroquinonyl group Chemical class C1(O)=C(C=C(O)C=C1)* 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 239000011159 matrix material Substances 0.000 claims description 2
- 125000005702 oxyalkylene group Chemical group 0.000 claims description 2
- 239000002530 phenolic antioxidant Substances 0.000 claims description 2
- 229920002493 poly(chlorotrifluoroethylene) Polymers 0.000 claims description 2
- 239000005023 polychlorotrifluoroethylene (PCTFE) polymer Substances 0.000 claims description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 2
- 230000001737 promoting effect Effects 0.000 claims description 2
- 150000003839 salts Chemical class 0.000 claims description 2
- 239000000126 substance Substances 0.000 claims description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims 2
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 claims 1
- 229910052759 nickel Inorganic materials 0.000 claims 1
- 239000007800 oxidant agent Substances 0.000 claims 1
- 230000001590 oxidative effect Effects 0.000 claims 1
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 claims 1
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 claims 1
- 229910052720 vanadium Inorganic materials 0.000 claims 1
- GPPXJZIENCGNKB-UHFFFAOYSA-N vanadium Chemical compound [V]#[V] GPPXJZIENCGNKB-UHFFFAOYSA-N 0.000 claims 1
- 238000005516 engineering process Methods 0.000 description 7
- 239000010408 film Substances 0.000 description 6
- 210000001787 dendrite Anatomy 0.000 description 4
- 238000010348 incorporation Methods 0.000 description 4
- WMFOQBRAJBCJND-UHFFFAOYSA-M Lithium hydroxide Chemical compound [Li+].[OH-] WMFOQBRAJBCJND-UHFFFAOYSA-M 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 229920001577 copolymer Polymers 0.000 description 3
- 150000008040 ionic compounds Chemical class 0.000 description 3
- 239000004014 plasticizer Substances 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 description 2
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 2
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 2
- XHCLAFWTIXFWPH-UHFFFAOYSA-N [O-2].[O-2].[O-2].[O-2].[O-2].[V+5].[V+5] Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[V+5].[V+5] XHCLAFWTIXFWPH-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- 239000011737 fluorine Substances 0.000 description 2
- 229910052731 fluorine Inorganic materials 0.000 description 2
- 238000009472 formulation Methods 0.000 description 2
- AMWRITDGCCNYAT-UHFFFAOYSA-L hydroxy(oxo)manganese;manganese Chemical compound [Mn].O[Mn]=O.O[Mn]=O AMWRITDGCCNYAT-UHFFFAOYSA-L 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 229910001935 vanadium oxide Inorganic materials 0.000 description 2
- 229910000733 Li alloy Inorganic materials 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- GOOHAUXETOMSMM-UHFFFAOYSA-N Propylene oxide Chemical compound CC1CO1 GOOHAUXETOMSMM-UHFFFAOYSA-N 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- 238000010669 acid-base reaction Methods 0.000 description 1
- HSFWRNGVRCDJHI-UHFFFAOYSA-N alpha-acetylene Natural products C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- JYYOBHFYCIDXHH-UHFFFAOYSA-N carbonic acid;hydrate Chemical compound O.OC(O)=O JYYOBHFYCIDXHH-UHFFFAOYSA-N 0.000 description 1
- 150000001768 cations Chemical class 0.000 description 1
- 210000004027 cell Anatomy 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 229910000428 cobalt oxide Inorganic materials 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000011262 electrochemically active material Substances 0.000 description 1
- 125000002534 ethynyl group Chemical group [H]C#C* 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 239000011244 liquid electrolyte Substances 0.000 description 1
- 239000001989 lithium alloy Substances 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- FUJCRWPEOMXPAD-UHFFFAOYSA-N lithium oxide Chemical compound [Li+].[Li+].[O-2] FUJCRWPEOMXPAD-UHFFFAOYSA-N 0.000 description 1
- 229910001947 lithium oxide Inorganic materials 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 229910052976 metal sulfide Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229910000480 nickel oxide Inorganic materials 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- GNRSAWUEBMWBQH-UHFFFAOYSA-N oxonickel Chemical compound [Ni]=O GNRSAWUEBMWBQH-UHFFFAOYSA-N 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/056—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes
- H01M10/0564—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes the electrolyte being constituted of organic materials only
- H01M10/0565—Polymeric materials, e.g. gel-type or solid-type
-
- 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
-
- 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
- H01M4/131—Electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
-
- 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
- H01M4/62—Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
- H01M4/621—Binders
- H01M4/622—Binders being polymers
- H01M4/623—Binders being polymers fluorinated polymers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2300/00—Electrolytes
- H01M2300/0017—Non-aqueous electrolytes
- H01M2300/0065—Solid electrolytes
- H01M2300/0082—Organic polymers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2300/00—Electrolytes
- H01M2300/0088—Composites
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M6/00—Primary cells; Manufacture thereof
- H01M6/14—Cells with non-aqueous electrolyte
- H01M6/16—Cells with non-aqueous electrolyte with organic electrolyte
- H01M6/162—Cells with non-aqueous electrolyte with organic electrolyte characterised by the electrolyte
- H01M6/168—Cells with non-aqueous electrolyte with organic electrolyte characterised by the electrolyte by additives
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M6/00—Primary cells; Manufacture thereof
- H01M6/40—Printed batteries, e.g. thin film 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
Definitions
- the invention relates to the field of all solid-state electrochemical generators, or rechargeable lithium batteries, of the type comprising at least one negative electrode capable of supplying a lithium cation, an all-solid alkaline polymer electrolyte and a positive electrode capable of incorporating the species. non-ionized corresponding to said lithium cation.
- the invention also relates to all solid polymeric electrolytes useful, in particular, for producing the electrochemical generators according to the invention.
- a lithium accumulator involves the transfer by ionic conduction, via a plastic or liquid electrolyte of lithium cations coming from the negative electrode or "source” towards the positive electrode or “well” for the non-ionized species corresponding to the lithium cation.
- a plasticizer requires the incorporation of another polymer. Indeed, the mechanical strength of polyethers (frequently used in these 2 technologies) is too low to allow use as a separator when a plasticizer is incorporated into them.
- This polymer is generally a fluorinated polymer. A ratio of 1 between the polyether and the fluoropolymer is a good compromise between conductivity and mechanical strength (see US 6185645).
- the incorporation of too large a quantity of fluoropolymer will have harmful consequences on the conductivity since the latter is much worse than the polyethers in terms of ionic conductivity.
- the mechanical strength is ensured by the polyether itself. Its mechanical strength is sufficient and does not require the incorporation of another polymer. The incorporation of a fluoropolymer even becomes harmful from the point of view of ionic conductivity.
- lithium batteries result from the lamination / assembly of three thin films (three-layer assembly): a positive electrode film containing an electro-chemically active material, an alkaline polymer electrolyte film, in particular a polyether, and of a lithium salt, and a film of a negative lithium-based electrode.
- the accumulator is switched on by a collector associated with the positive electrode, the negative electrode itself serving as a collector.
- the thickness of such an accumulator is of the order of 30 to 300 ⁇ m, each of the electrode films having a thickness of 10 to 100 ⁇ m. It should be noted that the polymer electrolyte essentially plays a role in cation carrier, its thickness can be thin, in particular much thinner than the electrodes with which it is associated.
- One of the objects of the present invention is to propose novel all-solid polymer electrolytes which make it possible to ensure very numerous charge / discharge cycles at almost constant specific energy by the reduction in particular of the tree structure phenomenon during the redeposition of lithium on the electrode. negative of lithium.
- the invention therefore relates firstly to an all-solid electrochemical generator comprising a negative electrode capable of supplying a lithium cation, an all-solid polymer electrolyte formed of a macromolecular material in which an ionized lithium salt is dissolved and a positive electrode capable of incorporate the non-ionized species corresponding to said lithium cation, characterized in that the all-solid polymer electrolyte comprises at least one (if necessary several) fluorinated polymer (s) in a mass ratio of macromolecular material / polymer (s) fluorinated (s) between 6 and 700.
- Fluoropolymers can be very diverse in nature, but particular mention is made of: PVDF, PHFP, PCTFE, PTFE, PVF 2 , PVF, etc.
- fluoropolymers can be used.
- the alkaline polymer electrolyte comprises approximately 0.1 to 10% by mass of fluorinated polymers, preferably 0.5 to 5% by mass.
- This value range is low enough not to degrade the ionic conductivity too much and not large enough to significantly modify the mechanical strength.
- the mass ratio between the polyether and the fluoropolymer is much higher than that used in the gelled technology since it is at least 6.
- the positive electrode according to a preferred variant may consist of a composite material, preferably substantially homogeneous, of the active material, of an inert compound with electronic conduction promoting the transfer of electrical charges to the collector such as graphite (or black acetylene) and polymer electrolyte.
- any mixed compound or intermediate compound comprising compounds or salts of an alkali transition metal having a strong electronic activity with respect to alkali metals and liable to impose on those -when, when are in the ionized state, a low chemical potential vis-à-vis that which they present when they are in the metallic state.
- the positive electrode is a composite electrode comprising carbon, an active material based on a transition metal and a matrix of a polymer electrolyte.
- active materials there may advantageously be mentioned vanadium oxide, manganese oxide, nickel oxide, cobalt oxide, a mixture of these active materials.
- All solid polymeric electrolytes are made of an ionically conductive macromolecular material, formed at least in part by a polymeric solution of a lithiated ionic compound fully dissolved in the plastic polymeric macromolecular material.
- Such materials are for example described in European patent No. 13,199.
- Copolymers derived from ethylene oxide are the most commonly used macromolecular materials and have already been described in numerous documents.
- the thickness of the all-solid polymer electrolyte is generally between 2 and 100 ⁇ m and preferably between 5 and 30 ⁇ m. In general, many documents relate to the preparation of the main components of these assemblies.
- the document FR-A-2 616 971 describes for example the preparation of a lithium or lithium alloy electrode by rolling, while the documents EP-A-0 285 476 and EP-A-0 357 859 describe the preparation of such an electrode by melt deposition.
- Document FR-A-2 563 382 describes various formulations of material of the positive electrode based on V2O5 and on metal oxide and sulphide.
- the positive electrode will have a thickness of between 10 and 150 ⁇ m, and a proportion of active material of between 20 and 80%, by mass.
- the positive electrode will have a thickness of between 10 and 100 ⁇ m, very advantageously between 20 and 100 ⁇ m and a proportion of active material of between 25 and 65% by mass very advantageously between 30 and 65%, or even between 45 and 65%.
- antioxidant can vary in significant proportions depending on the nature of the polymer used, it is advantageous to use a proportion of antioxidant compound between
- the all-solid polymer electrolyte comprises a significant proportion of magnesia between 5 and 30%, preferably between 8 and 25% by mass.
- the invention also relates to novel all-solid polymer electrolytes useful, in particular, for producing electrochemical generators according to the invention, made of a macromolecular material in which an ionized lithium salt is dissolved, characterized in that the polymer electrolyte comprises at least one fluoropolymer and the mass ratio: macromolecular material / fluoropolymers is between 6 and 700.
- the above description relating to the electrochemical generator and concerning the macromolecular material, the ionic compound and the fluoropolymers s' apply to the polymer electrolyte according to the invention.
- the polymer is preferably a polyether selected from the group consisting of polymers resulting from the polymerization of ethylene oxide, propylene oxide or other oxyalkylenes.
- the polymer, the ionic compound, the fluoropolymer (s) and optionally the magnesia are mixed in a known manner according to the techniques commonly used in the field of polymers.
- the electrolyte film is obtained by extrusion, coextrusion with the electrode and collector films or by coating.
- Example 1 The single figure is a schematic sectional view of an electrochemical generator.
- the single figure shows the battery 1 consisting of a positive electrode 2, an electrolyte 3 and a negative lithium electrode 4, these three elements being produced according to the invention and a collector 5 associated with the positive electrode, the negative electrode 4 with lithium playing the role of collector.
- the positive electrode is a composite electrode comprising a mixture of vanadium oxide, electrolyte and acetylene black, in a proportion of 12% by volume of acetylene black.
- the electrolyte consists of 69.7% of polyethylene oxide of molecular mass 300,000 in which is dissolved lithium trifluorosulfonylimide in a proportion such that the atomic oxygen / lithium ratio is equal to about 20 (or 17.6%), 9.8% magnesium oxide, 0.7% antioxidant (irganox) and 2.2% PVDF / HFP copolymer.
- the positive electrode has a capacity of approximately 1 mAh / cm2 for a thickness of 60 ⁇ m.
- the thickness of the negative electrode, the surface of which is very uniform, is 50 ⁇ m and the thickness of the electrolyte polymer is 50 ⁇ m.
- Battery 2 is identical to battery 1 cited in Example 1.
- Battery 3 consists of a positive electrode and a negative electrode identical to that of battery 2.
- the electrolyte of battery 3 consists of 71.3% of polyethylene oxide of molecular mass 300,000 in which is dissolved lithium trifluorosulfonylimide in a proportion such that the atomic oxygen / lithium ratio is equal to approximately 20 (or 18%), of 10% of oxide of magnesium, 0.7% antioxidant (irganox). Its thickness is 50 ⁇ m.
- the only difference between these 2 generators is the presence of PVDF / HFP copolymer that is found in the electrolyte of battery 2.
- the charging time is 10 hours and the discharging time is 5 hours.
- the current density is gradually increased until reaching the maximum capacity of the battery or causing a short circuit due to the formation of a dendrite.
- the use of the fluoropolymer therefore makes it possible to charge the battery under higher current densities.
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Dispersion Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Secondary Cells (AREA)
- Battery Electrode And Active Subsutance (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP01931808A EP1279201A1 (fr) | 2000-05-04 | 2001-05-04 | Generateur electrochimique a electrolyte polymerique tout solide comprenant des polymeres fluores |
CA002377915A CA2377915A1 (fr) | 2000-05-04 | 2001-05-04 | Generateur electrochimique a electrolyte polymerique tout solide comprenant des polymeres fluores |
JP2001581369A JP2003532989A (ja) | 2000-05-04 | 2001-05-04 | フルオロポリマーを含む全固体状態重合体状電解質を有する電気化学的発電機 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0005701A FR2808622B1 (fr) | 2000-05-04 | 2000-05-04 | Generateur electrochimique a electrolyte polymerique comprenant des polymeres fluores |
FR00/05701 | 2000-05-04 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2001084659A1 true WO2001084659A1 (fr) | 2001-11-08 |
Family
ID=8849888
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR2001/001379 WO2001084659A1 (fr) | 2000-05-04 | 2001-05-04 | Generateur electrochimique a electrolyte polymerique tout solide comprenant des polymeres fluores |
Country Status (6)
Country | Link |
---|---|
US (1) | US20030108799A1 (fr) |
EP (1) | EP1279201A1 (fr) |
JP (1) | JP2003532989A (fr) |
CA (1) | CA2377915A1 (fr) |
FR (1) | FR2808622B1 (fr) |
WO (1) | WO2001084659A1 (fr) |
Cited By (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1160905A2 (fr) * | 2000-05-26 | 2001-12-05 | Sony Corporation | Batterie rechargeable à électrolyte nonaqueux |
WO2004051769A2 (fr) * | 2002-12-02 | 2004-06-17 | Avestor Limited Partnership | Procede de fabrication par co-extrusion de cellule electrochimique a couche mince pour batteries au lithium-polymere et appareil associe |
WO2007114874A1 (fr) * | 2006-04-03 | 2007-10-11 | Siemens Power Generation, Inc. | Formation de charges dendritiques de haute conductivité thermique |
US7578898B2 (en) * | 2002-12-23 | 2009-08-25 | Batscap | Architecture of a winding device for an electric energy storage unit |
US7585934B2 (en) * | 2002-11-29 | 2009-09-08 | Zeon Corporation | Process for producing polyether polymer composition, polyether polymer composition, and solid electrolyte film |
US7651963B2 (en) | 2005-04-15 | 2010-01-26 | Siemens Energy, Inc. | Patterning on surface with high thermal conductivity materials |
US7655295B2 (en) | 2005-06-14 | 2010-02-02 | Siemens Energy, Inc. | Mix of grafted and non-grafted particles in a resin |
US7776392B2 (en) | 2005-04-15 | 2010-08-17 | Siemens Energy, Inc. | Composite insulation tape with loaded HTC materials |
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Also Published As
Publication number | Publication date |
---|---|
CA2377915A1 (fr) | 2001-11-08 |
JP2003532989A (ja) | 2003-11-05 |
EP1279201A1 (fr) | 2003-01-29 |
US20030108799A1 (en) | 2003-06-12 |
FR2808622A1 (fr) | 2001-11-09 |
FR2808622B1 (fr) | 2006-09-08 |
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