WO2018186135A1 - セパレータおよび非水電解液電池 - Google Patents
セパレータおよび非水電解液電池 Download PDFInfo
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- WO2018186135A1 WO2018186135A1 PCT/JP2018/009917 JP2018009917W WO2018186135A1 WO 2018186135 A1 WO2018186135 A1 WO 2018186135A1 JP 2018009917 W JP2018009917 W JP 2018009917W WO 2018186135 A1 WO2018186135 A1 WO 2018186135A1
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- aqueous electrolyte
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H13/00—Pulp or paper, comprising synthetic cellulose or non-cellulose fibres or web-forming material
- D21H13/10—Organic non-cellulose fibres
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H13/00—Pulp or paper, comprising synthetic cellulose or non-cellulose fibres or web-forming material
- D21H13/10—Organic non-cellulose fibres
- D21H13/20—Organic non-cellulose fibres from macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D21H13/26—Polyamides; Polyimides
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H15/00—Pulp or paper, comprising fibres or web-forming material characterised by features other than their chemical constitution
- D21H15/02—Pulp or paper, comprising fibres or web-forming material characterised by features other than their chemical constitution characterised by configuration
- D21H15/10—Composite fibres
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H5/00—Special paper or cardboard not otherwise provided for
- D21H5/12—Special paper or cardboard not otherwise provided for characterised by the use of special fibrous materials
- D21H5/20—Special paper or cardboard not otherwise provided for characterised by the use of special fibrous materials of organic non-cellulosic fibres too short for spinning, with or without cellulose fibres
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/52—Separators
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- 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
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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
- 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
- H01M50/423—Polyamide resins
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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
- 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
- H01M50/429—Natural polymers
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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
- 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
- H01M50/429—Natural polymers
- H01M50/4295—Natural cotton, cellulose or wood
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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
- 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
- H01M50/44—Fibrous material
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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
- 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
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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
- 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
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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
- 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
- H01M50/494—Tensile strength
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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
- H01M10/052—Li-accumulators
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/058—Construction or manufacture
- H01M10/0585—Construction or manufacture of accumulators having only flat construction elements, i.e. flat positive electrodes, flat negative electrodes and flat separators
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2220/00—Batteries for particular applications
- H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2300/00—Electrolytes
- H01M2300/0017—Non-aqueous electrolytes
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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
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings, jackets or wrappings of a single cell or a single battery
- H01M50/102—Primary casings, jackets or wrappings of a single cell or a single battery characterised by their shape or physical structure
- H01M50/109—Primary casings, jackets or wrappings of a single cell or a single battery characterised by their shape or physical structure of button or coin shape
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
Definitions
- non-aqueous electrolyte batteries secondary batteries
- an emergency call system is currently under development to notify the relevant places when a vehicle encounters an accident.
- a non-aqueous electrolyte battery primary battery or secondary battery
- Application of battery is under consideration.
- Patent Document 2 polyphenylene sulfide fiber: 52 to 78% by weight and aramid pulp: 20 to 40% by weight for the purpose of application to a high heat-resistant coin-type electric double layer capacitor that can withstand high temperatures in a reflow furnace.
- a wet nonwoven fabric comprising 2 to 8% by weight of polyvinyl alcohol fiber has been proposed as a separator.
- the separator having the above-described configuration, it is possible to configure a non-aqueous electrolyte battery that can be used in a high temperature environment of, for example, 120 ° C. or higher.
- a high temperature environment for example, 120 ° C. or higher.
- FIG. 1 is a cross-sectional view schematically showing an example of the nonaqueous electrolyte battery of the present invention.
- the ratio of the aramid fiber in the separator is too large, the moisture content of the separator is increased, so that the amount of moisture brought into the battery during battery assembly is increased, which causes a decrease in battery characteristics after assembly. .
- the negative electrode active material include lithium; lithium alloys such as Li—Al alloy, Li—Si alloy, and Li—Sn alloy; carbonaceous materials such as graphite and low crystalline carbon; SiO, SnO, Li 4 Ti 5 O 12 , oxide materials such as LiMn 2 O 4 ;
- the concentration of these lithium salts in the nonaqueous electrolytic solution is preferably 0.3 mol / L or more, more preferably 0.5 mol / L or more, and 0.8 mol / L or more. More preferably, it is preferably 1.8 mol / L or less, more preferably 1.5 mol / L or less, and further preferably 1.2 mol / L or less.
- the addition amount of the additive is preferably a ratio of about 0.1% by mass or more in the total amount of the non-aqueous electrolyte solution, although a suitable value varies depending on the amount of moisture to be brought in and the type of compound to be added.
- the content is more preferably 0.5% by mass or more, and particularly preferably 1% by mass or more.
- the additive when the amount of the additive added is too large, the additive is formed on the electrode by the additive, which increases the internal resistance of the battery and reduces load characteristics. Is preferably about 8% by mass or less, more preferably 5% by mass or less, and particularly preferably 3% by mass or less in the total amount of the non-aqueous electrolyte.
- non-aqueous electrolyte battery of the present invention is suppressed in characteristic deterioration under high temperature environment, taking advantage of these characteristics, particularly in automobile applications such as power supply applications for pressure sensors inside tires, It can be suitably used for applications that are easily exposed to high temperatures, and can also be applied to the same applications as those for which conventionally known nonaqueous electrolyte batteries are employed.
- Production Example 4 A wet nonwoven fabric (thickness: 300 ⁇ m, apparent density: similar to Production Example 1) except that the proportions of polyphenylene sulfide fiber, aramid pulp, and softwood pulp were changed to 75 mass%, 20 mass%, and 5 mass%, respectively.
- Example 4 A coin-type nonaqueous electrolyte battery was obtained in the same manner as in Example 1 except that one separator of Preparation Example 4 punched in a circle was used for assembling the battery.
Abstract
Description
(作製例1)
ポリフェニレンサルファイド繊維(繊度:1.1dtex、繊維長:5mm)50質量%と、アラミドパルプ(CSF値:150mL)25質量%と、針葉樹パルプ(CSF値:50mL)25質量%とを水中に分散させたスラリーを調製し、円網抄紙機で混抄して湿式不織布(厚さ:100μm、見かけ密度:0.2g/cm3、耐圧縮強さ:15N、透気度:32秒/100mL、平均細孔径:3μm)よりなるセパレータを作製した。
ポリフェニレンサルファイド繊維、アラミドパルプ、および針葉樹パルプの割合を、それぞれ55質量%、30質量%、15質量%に変更した以外は、作製例1と同様にして湿式不織布(厚さ:200μm、見かけ密度:0.5g/cm3、耐圧縮強さ:25N、透気度:38秒/100mL、平均細孔径:3.2μm)よりなるセパレータを作製した。
ポリフェニレンサルファイド繊維、アラミドパルプ、および針葉樹パルプの割合を、それぞれ60質量%、15質量%、35質量%に変更した以外は、作製例1と同様にして湿式不織布(厚さ:200μm、見かけ密度:0.6g/cm3、耐圧縮強さ:35N、透気度:40秒/100mL、平均細孔径:2.7μm)よりなるセパレータを作製した。
ポリフェニレンサルファイド繊維、アラミドパルプ、および針葉樹パルプの割合を、それぞれ75質量%、20質量%、5質量%に変更した以外は、作製例1と同様にして湿式不織布(厚さ:300μm、見かけ密度:0.2g/cm3、耐圧縮強さ:60N、透気度:6秒/100mL、平均細孔径:5.6μm)よりなるセパレータを作製した。
ポリフェニレンサルファイド繊維、アラミドパルプ、および針葉樹パルプの割合を、それぞれ85質量%、10質量%、5質量%に変更した以外は、作製例1と同様にして湿式不織布(厚さ:400μm、見かけ密度:0.6g/cm3、耐圧縮強さ:80N、透気度:0.5秒/100mL、平均細孔径:6.4μm)よりなるセパレータを作製した。
ポリフェニレンサルファイド繊維、アラミドパルプ、および針葉樹パルプの割合を、それぞれ40質量%、25質量%、35質量%に変更した以外は、作製例1と同様にして湿式不織布(厚さ:400μm、見かけ密度:0.6g/cm3、耐圧縮強さ:10N、透気度:54秒/100mL、平均細孔径:1.8μm)よりなるセパレータを作製した。
ポリフェニレンサルファイド繊維、アラミドパルプ、および針葉樹パルプの割合を、それぞれ90質量%、10質量%、0質量%に変更した以外は、作製例1と同様にして湿式不織布(厚さ:400μm、見かけ密度:0.6g/cm3、耐圧縮強さ:90N、透気度:0.4秒/100mL、平均細孔径:6.8μm)よりなるセパレータを作製した。
ポリフェニレンサルファイド繊維、アラミドパルプ、および針葉樹パルプの割合を、それぞれ80質量%、5質量%、15質量%に変更した以外は、作製例1と同様にして湿式不織布(厚さ:400μm、見かけ密度:0.6g/cm3、耐圧縮強さ:70N、透気度:21秒/100mL、平均細孔径:6.4μm)よりなるセパレータを作製した。
ポリフェニレンサルファイド繊維、アラミドパルプ、および針葉樹パルプの割合を、それぞれ55質量%、35質量%、10質量%に変更した以外は、作製例1と同様にして湿式不織布(厚さ:400μm、見かけ密度:0.6g/cm3、耐圧縮強さ:25N、透気度:24秒/100mL、平均細孔径:3.5μm)よりなるセパレータを作製した。
ポリフェニレンサルファイド繊維、アラミドパルプ、および針葉樹パルプの割合を、それぞれ50質量%、10質量%、40質量%に変更した以外は、作製例1と同様にして湿式不織布(厚さ:100μm、見かけ密度:0.2g/cm3、耐圧縮強さ:20N、透気度:34秒/100mL、平均細孔径:0.1μm未満)よりなるセパレータを作製した。
<正極の作製>
正極活物質である二酸化マンガンと、導電助剤であるカーボンブラックと、バインダであるポリテトラフルオロエチレンとを、93:3:4の質量比で混合して調製した正極合剤を成形して、直径16mm、厚み1.8mmの正極(正極合剤成形体)を得た。
厚みが0.6mmのリチウム箔の片面に、厚みが0.01μmのアルミニウム箔を圧着し、これを直径16mmの円形に打ち抜いて、負極を得た。
プロピレンカーボネートと1,2-ジメトキシエタンとを、41.8:51.2の質量比で混合した混合溶媒に、LiClO4を0.5mol/Lの濃度で溶解させ、更に2質量%となる量の1,3-プロパンスルトンを添加して非水電解液を調製した。
電池の外装材として、ポリフェニレンサルファイド製のガスケットを開口端部に装着したステンレス製の封口缶と、ステンレス製の外装缶とを用意した。前記封口缶の内面に前記負極を圧着し、直径19mmの円形に打ち抜かれた作製例1のセパレータ2枚を前記負極上に積層し、更に前記正極を前記セパレータに積層して、負極/セパレータ/正極の積層体を封口缶内に配置させた。続いて、前記非水電解液を封口缶内に注液して前記セパレータに吸液させ、更に外装缶を被せた後、これをかしめることにより封口を行い、図1に示す構造の直径20mm、高さ3.2mmのコイン形非水電解液電池を得た。
円形に打ち抜かれた作製例2のセパレータ1枚を電池の組み立てに用いた以外は、実施例1と同様にしてコイン形非水電解液電池を得た。
円形に打ち抜かれた作製例3のセパレータ1枚を電池の組み立てに用いた以外は、実施例1と同様にしてコイン形非水電解液電池を得た。
円形に打ち抜かれた作製例4のセパレータ1枚を電池の組み立てに用いた以外は、実施例1と同様にしてコイン形非水電解液電池を得た。
円形に打ち抜かれた作製例5のセパレータ1枚を電池の組み立てに用いた以外は、実施例1と同様にしてコイン形非水電解液電池を得た。
円形に打ち抜かれた作製例6のセパレータ1枚を電池の組み立てに用いた以外は、実施例1と同様にしてコイン形非水電解液電池を得た。
円形に打ち抜かれた作製例7のセパレータ1枚を電池の組み立てに用いた以外は、実施例1と同様にしてコイン形非水電解液電池を得た。
円形に打ち抜かれた作製例8のセパレータ1枚を電池の組み立てに用いた以外は、実施例1と同様にしてコイン形非水電解液電池を得た。
円形に打ち抜かれた作製例9のセパレータ1枚を電池の組み立てに用いた以外は、実施例1と同様にしてコイン形非水電解液電池を得た。
円形に打ち抜かれた作製例10のセパレータ2枚を電池の組み立てに用いた以外は、実施例1と同様にしてコイン形非水電解液電池を得た。
電池の組みたて時に問題を生じなかった実施例1~5、比較例1および比較例5の非水電解液電池について、以下の条件で電池特性を評価した。
2 正極
3 負極
4 セパレータ
5 外装缶
6 封口缶
7 ガスケット
Claims (12)
- ポリフェニレンサルファイド繊維、アラミド繊維およびセルロース繊維を、それぞれ50~85質量%、10~30質量%、5~35質量%の割合で含むことを特徴とするセパレータ。
- 耐圧縮強さが、15~80Nである請求項1に記載のセパレータ。
- 前記ポリフェニレンサルファイド繊維の含有割合が、55~75質量%である請求項1または2に記載のセパレータ。
- 前記アラミド繊維の含有割合が、15~25質量%である請求項1または2に記載のセパレータ。
- 前記セルロース繊維の含有割合が、15~25質量%である請求項1または2に記載のセパレータ。
- 湿式不織布よりなる請求項1~5のいずれかに記載のセパレータ。
- 正極、負極、セパレータおよび非水電解液を含む非水電解液電池であって、
前記セパレータが、ポリフェニレンサルファイド繊維、アラミド繊維およびセルロース繊維を、それぞれ50~85質量%、10~30質量%、5~35質量%の割合で含むことを特徴とする非水電解液電池。 - 前記セパレータの耐圧縮強さが、15~80Nである請求項7に記載の非水電解液電池。
- 前記セパレータ中のポリフェニレンサルファイド繊維の含有割合が、55~75質量%である請求項7または8に記載の非水電解液電池。
- 前記セパレータ中のアラミド繊維の含有割合が、15~25質量%である請求項7または8に記載の非水電解液電池。
- 前記セパレータ中のセルロース繊維の含有割合が、15~25質量%である請求項7または8に記載の非水電解液電池。
- 前記セパレータが、湿式不織布よりなる請求項7~11のいずれかに記載の非水電解液電池。
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JP2019511118A JP6818874B2 (ja) | 2017-04-06 | 2018-03-14 | セパレータおよび非水電解液電池 |
CN201880003512.XA CN109690823A (zh) | 2017-04-06 | 2018-03-14 | 隔膜及非水电解液电池 |
US16/332,252 US11177535B2 (en) | 2017-04-06 | 2018-03-14 | Separator and non-aqueous electrolyte battery |
EP18781522.0A EP3608991A4 (en) | 2017-04-06 | 2018-03-14 | NON-AQUEOUS ELECTROLYTE SEPARATOR AND BATTERY |
KR1020197007044A KR102173605B1 (ko) | 2017-04-06 | 2018-03-14 | 세퍼레이터 및 비수전해액 전지 |
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JP2022045173A (ja) * | 2020-09-08 | 2022-03-18 | プライムプラネットエナジー&ソリューションズ株式会社 | 非水電解質二次電池および組電池 |
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EP4309229A1 (en) * | 2021-03-15 | 2024-01-24 | Ahlstrom Oyj | Coated non-woven lithium ion battery separators with high temperature resistance |
CN114922002A (zh) * | 2022-04-13 | 2022-08-19 | 株洲时代新材料科技股份有限公司 | 一种耐压电容器纸及其制备方法 |
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US20190229317A1 (en) | 2019-07-25 |
KR20190039229A (ko) | 2019-04-10 |
EP3608991A4 (en) | 2020-11-11 |
EP3608991A1 (en) | 2020-02-12 |
KR102173605B1 (ko) | 2020-11-03 |
JPWO2018186135A1 (ja) | 2019-06-27 |
CN109690823A (zh) | 2019-04-26 |
US11177535B2 (en) | 2021-11-16 |
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