EP2460210A1 - Galvanisches element und separator mit verbesserten sicherheitseigenschaften - Google Patents
Galvanisches element und separator mit verbesserten sicherheitseigenschaftenInfo
- Publication number
- EP2460210A1 EP2460210A1 EP10737876A EP10737876A EP2460210A1 EP 2460210 A1 EP2460210 A1 EP 2460210A1 EP 10737876 A EP10737876 A EP 10737876A EP 10737876 A EP10737876 A EP 10737876A EP 2460210 A1 EP2460210 A1 EP 2460210A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- separator
- melting
- polymer
- softening temperature
- layer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 229920000642 polymer Polymers 0.000 claims abstract description 51
- 238000002844 melting Methods 0.000 claims abstract description 48
- 230000008018 melting Effects 0.000 claims abstract description 45
- 239000010410 layer Substances 0.000 claims description 31
- 239000004696 Poly ether ether ketone Substances 0.000 claims description 15
- 229920002530 polyetherether ketone Polymers 0.000 claims description 15
- -1 polyethylene Polymers 0.000 claims description 13
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 11
- 229910052744 lithium Inorganic materials 0.000 claims description 11
- 239000004698 Polyethylene Substances 0.000 claims description 8
- 239000004743 Polypropylene Substances 0.000 claims description 8
- 229920001155 polypropylene Polymers 0.000 claims description 8
- 239000002131 composite material Substances 0.000 claims description 6
- 229920000573 polyethylene Polymers 0.000 claims description 5
- 229920000098 polyolefin Polymers 0.000 claims description 5
- 239000002356 single layer Substances 0.000 claims description 4
- 229910052799 carbon Inorganic materials 0.000 claims description 3
- 238000009830 intercalation Methods 0.000 claims description 2
- 229920008285 Poly(ether ketone) PEK Polymers 0.000 claims 1
- 229910001416 lithium ion Inorganic materials 0.000 abstract description 4
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 abstract description 3
- 239000010408 film Substances 0.000 description 17
- 239000000919 ceramic Substances 0.000 description 5
- 229920001643 poly(ether ketone) Polymers 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 4
- 239000000155 melt Substances 0.000 description 4
- 239000004745 nonwoven fabric Substances 0.000 description 4
- 239000011148 porous material Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 238000001125 extrusion Methods 0.000 description 3
- 239000004744 fabric Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 3
- 230000001419 dependent effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 239000002480 mineral oil Substances 0.000 description 2
- 235000010446 mineral oil Nutrition 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 229920001655 poly(etheretheretherketone) Polymers 0.000 description 2
- 229920001652 poly(etherketoneketone) Polymers 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- OJIJEKBXJYRIBZ-UHFFFAOYSA-N cadmium nickel Chemical compound [Ni].[Cd] OJIJEKBXJYRIBZ-UHFFFAOYSA-N 0.000 description 1
- 238000003490 calendering Methods 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000012777 electrically insulating material Substances 0.000 description 1
- 239000007772 electrode material Substances 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000009477 glass transition Effects 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 229920001903 high density polyethylene Polymers 0.000 description 1
- 239000004700 high-density polyethylene Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 230000003446 memory effect Effects 0.000 description 1
- 229910052987 metal hydride Inorganic materials 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 229920000620 organic polymer Polymers 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000010734 process oil Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 239000011800 void material Substances 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
- H01M10/052—Li-accumulators
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
- H01M50/409—Separators, membranes or diaphragms characterised by the material
- H01M50/411—Organic material
- H01M50/414—Synthetic resins, e.g. thermoplastics or thermosetting resins
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
- H01M50/489—Separators, membranes, diaphragms or spacing elements inside the cells, characterised by their physical properties, e.g. swelling degree, hydrophilicity or shut down properties
- H01M50/491—Porosity
-
- 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
Definitions
- the present invention relates to a galvanic element having a separator with improved safety characteristics. Moreover, the present invention also relates to the separator with the improved safety properties itself.
- An electrical separator is a membrane that is used primarily in batteries and accumulators to separate electrodes of opposite polarity from each other.
- a separator is made of an electrically insulating material, but is permeable to ions and has a high mechanical strength and a good chemical resistance to solvents and other chemicals used in batteries. It is furthermore advantageous if a separator has a certain elasticity, since it is regularly exposed to mechanical loads during charging and discharging processes, in particular in lithium-ion and lithium polymer batteries.
- separators consist predominantly of porous organic polymer films or of nonwovens, for example nonwovens of glass or ceramic materials.
- porous films made of polypropylene or a polypropylene / polyethylene / polypropylene composite as separators.
- lithium batteries have many advantages. Particularly noteworthy are the very high specific energy density and lithium batteries usually have only a very low self-discharge rate and virtually no memory effect.
- the disadvantage is As a rule, lithium batteries always contain a combustible electrolyte and frequently also combustible electrode materials such as graphite. In addition, metallic lithium reacts very violently with water. Overcharging lithium batteries or damage can therefore lead to fires or even explosions.
- shutdown temperature the polyethylene melts, and the pores of the separator are closed, interrupting the circuit irreversibly, causing further uncontrolled discharge of the cell, but disadvantageous in polyolefin separators Their limited thermal stability, because if the battery heats up further, the polypropylene melts, which can lead to a melting of the entire separator (the so-called “melt down”) and thus to a large internal short circuit.
- the present invention has for its object to provide batteries with improved safety properties.
- the focus of development should be in particular on the provision of batteries with improved in terms of their safety properties separators.
- a galvanic element according to the invention has a positive electrode, a negative electrode and an intervening separator.
- a galvanic element according to the invention is characterized in that the separator consists at least partially of a polymer whose melting and / or softening temperature is above 200 ° C.
- a separator with such a polymer has a significantly higher thermal stability than known from the prior art organic separators.
- the polyolefin separators mentioned melt all generally at temperatures well below 200 0 C.
- the melting range of polypropylene is usually at 160 0 C to 165 0 C, that of poly- ethylene at a maximum of 145 0 C (in the case of high density polyethylene).
- Melting temperature is known as the temperature at which a substance melts, that is, from the solid state to the liquid state. For polymers, this temperature is not always easily determinable. Some polymers degrade before they melt. With these polymers, the abovementioned softening - A - temperature can be used as a characteristic characteristic value.
- the softening temperature also called glass transition temperature T G ) is the temperature at which a polymer has the greatest change in the deformability. Other polymers do not show a sharp melting point but melt in a temperature range. For these polymers, the lower limit of this range should apply as the melting temperature.
- a separator which consists at least partially of a polymer whose melting and / or softening temperature is between 200 0 C and 400 0 C. Within this range, a melting and / or softening temperature between 300 0 C and 400 0 C are more preferred.
- polyether ketones PEEK
- PEEK polyetheretherketones
- Polyether ketones are known to be high-temperature-resistant thermoplastics; the PEEK mentioned is one of its best-known and most important representatives.
- the melting temperature of PEEK is about 335 0 C to 345 0 C.
- There are various derivatives eg PEEEK, PEEKEK and PEKK), which have slightly different melting points (eg PEKK about 391 0 C or PEEEK about 324 0 C).
- Polyether ketones are resistant to almost all organic and inorganic chemicals. They are sensitive to UV radiation as well as strongly acidic and oxidizing conditions, as they are usually not found in batteries.
- High-temperature-stable polymers such as polyether ketones are characterized by the fact that they are no or only a very small when heated Show shrinkage.
- the shrinkage of separators on heating had regularly led to problems in galvanic elements known from the prior art.
- internal short circuits could be observed in cells, caused by the fact that the separator of an electrode-separator laminate withdrew when heated and thus allowed direct contacts between the electrodes.
- problems occur only very rarely, preferably not at all, in galvanic elements according to the invention.
- the separator in an element according to the invention has in preferred embodiments, when heated from room temperature to 200 0 C to a maximum shrinkage value of 5%.
- the maximum shrinkage value relates both to the length and to the width of the separator. Neither longitudinally nor perpendicularly should the separator shrink more than 5% at the indicated heating.
- the shrinkage value can be determined by heating at least three specimens each 10 cm long (and each having the same thickness, preferably in the range between 5 ⁇ m and 100 ⁇ m) in an oven and exposing it to air at 200 ° C for 5 min. The occurring length changes are determined and averaged.
- separators made of PEEK are distinguished not only by their high thermal properties but also by their outstanding mechanical resistance.
- Separators in galvanic elements according to the invention in particular those which consist at least partially of PEEK, preferably have a very high puncture resistance in the range between 100 g and 300 g, preferably between 150 g and 250 g, in particular of approximately 200 g. These values can be determined by the standard test according to ASTM D3763.
- the separator of a galvanic element according to the invention is a film, that is not about around a fleece or a fabric.
- a separator film can be produced conventionally by extrusion or it is cast.
- multilayered films which can be produced, for example, by coextrusion with at least one layer of the polymer having the melting and / or softening point above 200 ° C.
- These multilayer films preferably have at least one of these a layer of the polymer having the melting and / or softening point> 200 ° C. of at least one further layer of a further, in particular of a comparatively lower melting, polymer.
- the separator in addition to the layer of the high-temperature-resistant polymer having the melting and / or softening point above 200 ° C., may also have one or more layers of a polymer having a melting and / or softening temperature ⁇ 200 ° C. , in particular between 100 0 C and 200 0 C, having.
- this polymer having a melting and / or softening temperature ⁇ 200 ° C. is a polyolefin, very particularly preferably polyethylene and / or polypropylene.
- Such a multi-layer film separator combines the properties of a high-temperature-resistant separator such as the aforementioned ceramic nonwovens or ceramic fabrics with the properties of a simple Polyolefinseparators.
- a shutdown of the battery can take place even at relatively low temperatures.
- the polymer with the melting and / or softening ⁇ 200 0 C melts and thereby closes the pores of the layer of the polymer with a melting and / or softening temperature> 200 0 C.
- this situation in turn does not melt itself, so that a MeIt down, so a complete melting of the separator, can be prevented.
- the separator according to the invention has a permeability to ions, in particular to lithium ions. Particularly preferably, it has a porosity between 15 and 85% by volume, preferably between 35 and 60% by volume.
- the porosity represents the ratio of void volume to total volume of the polymer layer, so it serves as klassifiversdes measure of the actually present cavities.
- the determination of porosity may e.g. be carried out by comparing the specific gravity of a film separator according to the invention to the specific gravity of a non-porous film, which was prepared under the same conditions as the film separator, apart from special measures for the preparation of the pores.
- the above information on the porosity apply preferably both to single-layer and multi-layer film separators and in the latter case both for layers of the polymer having the melting and / or softening temperature ⁇ 200 ° C. and for layers as well as from the polymer having the melting point. and / or softening temperature> 200 0 C.
- Such a porous separator can be produced, for example, by film casting or extrusion (or, in the case of a multilayer film separator, also by coextrusion of a plurality of polymers) and subsequent stretching, in particular in a tensile stretching machine.
- a polymer may be mixed with a mineral oil and extruded. During the subsequent removal of the mineral oil, the pores are then released.
- the two techniques can be easily combined. Basically, such ancillary but to the prior art and therefore in the present case require no further explanation.
- a further feature with which the separator can be characterized, at least in particularly preferred embodiments of the galvanic element according to the invention, is the permeability of the separator.
- particularly suitable separators in particular those made of PEEK or with at least one layer of PEEK, should have a Gurley value between 90 and 600 sec / 100 cm 3 air.
- the Gurley value indicates the time in which 100 cm 3 of air through a 6.4 cm 2 surface of the separator at a pressure difference of 0.188 psi (0.00124106 bar) flows.
- the Gurley value is usually determined in a densometer.
- the single-layer or multi-layer separator according to the invention preferably has a total thickness between 5 ⁇ m and 100 ⁇ m, particularly preferably between 10 ⁇ m and 35 ⁇ m, in a galvanic element according to the invention.
- the electrodes of a galvanic element according to the invention and the separator usually form a stable composite. They can be interconnected, for example by lamination or gluing.
- the positive electrode, the negative electrode and the intervening separator are in the form of a flat, wound or folded composite.
- the composite of positive electrode, negative electrode and separator forms a single cell, of which a galvanic element according to the invention can also contain several. These can be arranged in a stack, for example, within a galvanic element according to the invention. Otherwise, it is of course possible that the galvanic element according to the invention is a wound cell or a folding cell. delt.
- the composite in this case preferably has a sequence electrode-separator-electrode-separator.
- At least one of the electrodes of a galvanic element according to the invention is a lithium-intercalating electrode.
- the galvanic element according to the invention is accordingly preferably a primary or secondary lithium battery.
- a separator itself is also included in the present invention.
- the separator according to the invention is intended for use in galvanic elements, in particular those as described above.
- the features described below can also be used according to particular to further characterize the separator of the galvanic element according to the invention.
- the statements made above on preferred embodiments of the separator in a galvanic element according to the invention basically also apply to the separator according to the invention described below.
- the separator according to the invention is a multi-layered separator. It always comprises at least one layer of a polymer having a melting and / or softening temperature> 200 ° C. and at least one further layer of a polymer having a melting and / or softening temperature ⁇ 200 ° C.
- the at least one layer of the higher melting polymer is preferably a thin film.
- the at least one further layer of the lower-melting polymer may likewise be a film which has been formed, for example, by co-extrusion together with the first layer.
- the further layer may also be a coating, which was subsequently applied to a film of the polymer having a melting and / or softening temperature> 200 0 C.
- a separator according to the invention preferably has the following layer structure:
- the fully extracted separator was biaxially stretched in a tensile stretching machine (a monoaxial stretching is also possible) by about 35% in each case (stretching is usually 20 to 100% of the original length or possibly width).
- the extracted and stretched separator had a porosity of about 45% by volume.
- Fig. 1 shows the oven test with the conventional cell, in which indicate strong dips in the cell voltage that a safe separation of the electrodes was no longer exist.
- the cell could have ignited at any time due to a strong internal short circuit.
- FIG. 2 shows the oven test with the cell according to the invention (with PEEK separator), in which the only slight decrease of the cell voltage indicates that there was a safe separation of the electrodes during the entire test process.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Cell Separators (AREA)
- Secondary Cells (AREA)
- Primary Cells (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102009035759A DE102009035759A1 (de) | 2009-07-27 | 2009-07-27 | Galvanisches Element und Separator mit verbesserten Sicherheitseigenschaften |
| PCT/EP2010/060777 WO2011012567A1 (de) | 2009-07-27 | 2010-07-26 | Galvanisches element und separator mit verbesserten sicherheitseigenschaften |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP2460210A1 true EP2460210A1 (de) | 2012-06-06 |
Family
ID=42782301
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP10737876A Withdrawn EP2460210A1 (de) | 2009-07-27 | 2010-07-26 | Galvanisches element und separator mit verbesserten sicherheitseigenschaften |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US20120164502A1 (de) |
| EP (1) | EP2460210A1 (de) |
| JP (1) | JP2013500562A (de) |
| KR (1) | KR20120052340A (de) |
| CN (1) | CN102498593A (de) |
| DE (1) | DE102009035759A1 (de) |
| WO (1) | WO2011012567A1 (de) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102013200848A1 (de) | 2013-01-21 | 2014-07-24 | Robert Bosch Gmbh | Sicherheitsverbessertes galvanisches Element |
| DE102013203485A1 (de) * | 2013-03-01 | 2014-09-04 | Robert Bosch Gmbh | Galvanisches Element mit verbesserten Sicherheitseigenschaften |
| DE102014218779A1 (de) | 2014-09-18 | 2016-03-24 | Robert Bosch Gmbh | Separator mit Glas-Shut-Down-Effekt |
| DE102017217669A1 (de) * | 2017-10-05 | 2019-04-11 | Robert Bosch Gmbh | Kompositmaterial zur Verwendung in elektrochemischer Festkörperelle |
| EP4080663A1 (de) * | 2021-04-20 | 2022-10-26 | VARTA Microbattery GmbH | Verfahren und set zur herstellung einer zink-braunstein-zelle sowie damit hergestellte zelle |
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU9210198A (en) * | 1997-08-29 | 1999-03-16 | Richard M. Formato | Composite solid polymer electrolyte membranes |
| JP4236427B2 (ja) * | 2002-08-26 | 2009-03-11 | 三洋電機株式会社 | リチウム二次電池 |
| TWI270228B (en) * | 2003-02-28 | 2007-01-01 | Sanyo Electric Co | Heat resistant lithium battery |
| WO2004099299A2 (en) * | 2003-05-05 | 2004-11-18 | Porogen Corporation | Porous poly(aryl ether ketone) membranes, processes for their preparation and use thereof |
| JP2004363048A (ja) * | 2003-06-06 | 2004-12-24 | Sony Corp | セパレータ及び非水電解質電池 |
| WO2006137540A1 (ja) * | 2005-06-24 | 2006-12-28 | Tonen Chemical Corporation | ポリエチレン多層微多孔膜並びにそれを用いた電池用セパレータ及び電池 |
| KR20080068722A (ko) * | 2005-10-24 | 2008-07-23 | 토넨 케미칼 코퍼레이션 | 폴리올레핀 다층 미세 다공막 및 그 제조 방법 및 전지용세페레이터 |
| JP4946006B2 (ja) * | 2005-11-04 | 2012-06-06 | 東レ株式会社 | 複合多孔質膜及びその製造方法 |
| CN1983676A (zh) * | 2006-01-27 | 2007-06-20 | 松下电器产业株式会社 | 锂离子二次电池及其充电系统 |
| JP4838084B2 (ja) * | 2006-09-28 | 2011-12-14 | タピルス株式会社 | ポリエーテルエーテルケトン製メルトブロー不織布、その製造方法及びそれからなる耐熱性電池セパレータ |
| DE102006062407A1 (de) * | 2006-12-20 | 2008-06-26 | Varta Microbattery Gmbh | Galvanisches Element mit einem geklebten Verbund aus Elektroden und Separator |
| JP5394610B2 (ja) * | 2007-02-20 | 2014-01-22 | パナソニック株式会社 | 非水電解質二次電池 |
| US7892672B2 (en) * | 2007-06-06 | 2011-02-22 | Teijin Limited | Polyolefin microporous membrane base for nonaqueous secondary battery separator, method for producing the same, nonaqueous secondary battery separator and nonaqueous secondary battery |
| JP5473041B2 (ja) * | 2007-08-07 | 2014-04-16 | 三菱樹脂株式会社 | 積層多孔性フィルムおよび電池用セパレータ |
| JP5040626B2 (ja) * | 2007-12-07 | 2012-10-03 | 三菱電機株式会社 | 電力貯蔵デバイスセルおよびその制御方法 |
-
2009
- 2009-07-27 DE DE102009035759A patent/DE102009035759A1/de not_active Withdrawn
-
2010
- 2010-07-26 WO PCT/EP2010/060777 patent/WO2011012567A1/de not_active Ceased
- 2010-07-26 CN CN2010800429731A patent/CN102498593A/zh active Pending
- 2010-07-26 JP JP2012522128A patent/JP2013500562A/ja active Pending
- 2010-07-26 KR KR1020127004558A patent/KR20120052340A/ko not_active Withdrawn
- 2010-07-26 US US13/386,921 patent/US20120164502A1/en not_active Abandoned
- 2010-07-26 EP EP10737876A patent/EP2460210A1/de not_active Withdrawn
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2011012567A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| US20120164502A1 (en) | 2012-06-28 |
| JP2013500562A (ja) | 2013-01-07 |
| CN102498593A (zh) | 2012-06-13 |
| WO2011012567A1 (de) | 2011-02-03 |
| DE102009035759A1 (de) | 2011-02-03 |
| KR20120052340A (ko) | 2012-05-23 |
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