JP2013089593A - リチウム2次電池 - Google Patents
リチウム2次電池 Download PDFInfo
- Publication number
- JP2013089593A JP2013089593A JP2012206583A JP2012206583A JP2013089593A JP 2013089593 A JP2013089593 A JP 2013089593A JP 2012206583 A JP2012206583 A JP 2012206583A JP 2012206583 A JP2012206583 A JP 2012206583A JP 2013089593 A JP2013089593 A JP 2013089593A
- Authority
- JP
- Japan
- Prior art keywords
- secondary battery
- lithium secondary
- separator
- metal
- battery according
- 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.)
- Pending
Links
Classifications
-
- 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
- H01M4/48—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides
- H01M4/50—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese
- H01M4/505—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy
-
- 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
- H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
- H01M4/136—Electrodes based on inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy
-
- 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
- H01M4/362—Composites
- H01M4/366—Composites as layered products
-
- 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
- H01M4/48—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides
- H01M4/52—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron
- H01M4/525—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
-
- 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
- H01M4/58—Selection of substances as active materials, active masses, active liquids of inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy; of polyanionic structures, e.g. phosphates, silicates or borates
- H01M4/5825—Oxygenated metallic salts or polyanionic structures, e.g. borates, phosphates, silicates, olivines
-
- 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
- H01M50/409—Separators, membranes or diaphragms characterised by the material
- H01M50/411—Organic material
- H01M50/414—Synthetic resins, e.g. thermoplastics or thermosetting resins
- H01M50/417—Polyolefins
-
- 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
- H01M50/426—Fluorocarbon polymers
-
- 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
- H01M50/446—Composite material consisting of a mixture of organic and inorganic materials
-
- 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
- H01M50/449—Separators, membranes or diaphragms characterised by the material having a layered structure
-
- 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
- H01M50/449—Separators, membranes or diaphragms characterised by the material having a layered structure
- H01M50/451—Separators, membranes or diaphragms characterised by the material having a layered structure comprising layers of only organic material and layers containing inorganic material
-
- 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
- H01M50/463—Separators, membranes or diaphragms characterised by their shape
-
- 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
-
- 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
- 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
- H01M10/0566—Liquid materials
- H01M10/0568—Liquid materials characterised by the solutes
-
- 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
- H01M10/0566—Liquid materials
- H01M10/0569—Liquid materials characterised by the solvents
-
- 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
- H01M2220/00—Batteries for particular applications
- H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
-
- 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
- H01M4/133—Electrodes based on carbonaceous material, e.g. graphite-intercalation compounds or CFx
-
- 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
- H01M4/62—Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
- H01M4/624—Electric conductive fillers
-
- 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
- H01M50/443—Particulate material
-
- 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
- H01M50/463—Separators, membranes or diaphragms characterised by their shape
- H01M50/469—Separators, membranes or diaphragms characterised by their shape tubular or cylindrical
-
- 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
-
- 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
-
- 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
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Composite Materials (AREA)
- Manufacturing & Machinery (AREA)
- Crystallography & Structural Chemistry (AREA)
- Secondary Cells (AREA)
- Cell Separators (AREA)
- Battery Electrode And Active Subsutance (AREA)
Abstract
【解決手段】高電圧正極活物質を含む正極;およびセパレータを含むリチウム2次電池が提供される。前記高電圧正極活物質は、Li対極に対して4.6V以上で放電平坦電圧を有し、前記セパレータの気孔度は、48%〜60%の多孔性基材を含む。
【選択図】図1
Description
Li1+xNiyMn2−y−zMzO4+w
Li1+xNiyMn2−y−zMzO4+w
20.0μm厚さの多孔性ポリエチレン基材の両面にポリ(フッ化ビニリデン−ヘキサフルオロプロピレン)共重合体(P(VdF−HFP))をN−メチル−2−ピロリドン(NMP)に6:100重量比で溶かした後、Al2O3と混合して製造したコロイドタイプの均一な溶液を2μm厚さでコーティング後乾燥して総20μmで気孔度が60%であるセパレータを製造した。この時、Al2O3使用量はNMPを基準に20重量%であった。結果的に、ポリエチレン基材にはAl2O3とP(VdF−HFP)を含むコーティング層が形成されており、Al2O3の含量はこのコーティング層全体100重量%中に約77重量%であった。
気孔度60%である20.0μm厚さのポリエチレン基材の代わりに気孔度57%である19.0μm厚さのポリエチレン基材を使用した点を除いては実施例1と同様に行って18650円形フルセルを製作した。
気孔度60%である20.0μm厚さのポリエチレン基材の代わりに気孔度48%である19.3μm厚さのポリエチレン基材を使用した点を除いては実施例1と同様に行って18650円形フルセルを製作した。
気孔度37%である20.0μm厚さのポリエチレン基材からなり、コーティング層を含まないセパレータを製造して使用した点を除いては実施例1と同様に行って18650円形フルセルを製作した。
気孔度40%である20.0μm厚さのポリエチレン基材からなり、コーティング層を含まないセパレータを製造して使用した点を除いては実施例1と同様に行って18650円形フルセルを製作した。
気孔度46%である20.0μm厚さのポリエチレン基材からなり、コーティング層を含まないセパレータを製造して使用した点を除いては実施例1と同様に行って18650円形フルセルを製作した。
前記実施例1〜3および比較例1〜3で製造されたセパレータに対して厚さ、通気度(air permeability)、気孔度、突出強度(puncture strength)、引張強度(tensile strength)、延伸率(tensile elongation)、熱収縮率を測定して下記表1に記載した。各測定基準は以下のとおりである。
セパレータMD(長さ方向)方向に15cmに切断して3個の試片を準備し、準備された試片にボールペンを利用して長さ方向(MD方向)に10cm線を引いた。試片別に投影機(または3−D)を利用して引かれたMD方向の線長さを0.1cm単位まで正確に測定した。
[(初期の長さ−オーブン内放置後の長さ)/初期の長さ]×100
40mm(MD)×10mm(TD)サイズの試片及び10mm(MD)×40mm(TD)サイズの試片を準備した。マイクロメーター(Micrometer)を利用して試片の厚さを測定して記録した。
引張強度の実験は、最大荷重値を10kgとしてチャック間隔20mmに固定し、引張速度100mm/minの条件で引張して実施し、この時、最大荷重値および最大伸張長さの精密度は、それぞれ0.1kg、0.1mmとした。厚さ測定値と最大破断荷重値を利用して下記式に代入して引張強度を計算し、1kgf/cm2単位まで記載した。
引張強度(kg/cm2={(最大破断荷重)/(厚さ)}×10000
延伸率(%)={(最大伸張)/20}×100
測定圧力:0.5kg/cm2、シリンダー圧力:2.5kg/cm2、セッティング時間(set time):10秒
1m試片に対して10cm間隔で10回以上測定してデータの平均を記載した。
測定機器として、Handy−Type Compression Tester KES−G5(端部Ф1.0mm金属ピン(pin)、KES Kato Tech Co. LTD., Kyoto Japan)を使用して以下のセッティング条件により測定した後、下記表1に記載した。
前記実施例および比較例で製造された18650フルセルを利用して充放電実験を行った。フルセルの充電上限電圧を4.8V、放電下限電圧3.0Vに設定して常温および45℃充放電サイクルを行った。
正極活物質として5Vスピネル系LiNi0.5Mn1.5O4の代わりに4Vスピネル系LiMn2O4を使用した点を除いては比較例1と同様に行って18650円形フルセルを製作した。
正極活物質として5Vスピネル系LiNi0.5Mn1.5O4の代わりに4Vスピネル系LiMn2O4を使用した点を除いては実施例1と同様に行って18650円形フルセルを製作した。
前記実施例1で製造された正極、厚さが100umであるリチウム箔対極および前記実施例1で製造されたセパレータを使用し、2030コイン形態の半電池を製造した。
112 負極
113 セパレータ
114 正極
120 電池容器
140 封入部材
Claims (14)
- 高電圧正極活物質を含む正極と、
セパレータと
を含み、
前記高電圧正極活物質は、Li対極に対して4.6V以上で放電平坦電圧を有し、
前記セパレータは気孔度が40%〜60%の多孔性基材を含む、リチウム2次電池。 - 前記高電圧正極活物質は、下記化学式1で表される化合物、オリビン系リチウムメタルホスフェートおよびこれらの組み合わせからなる群より選択された一つである、請求項1に記載のリチウム2次電池。
[化学式1]
Li1+xNiyMn2−y−zMzO4+w
(上記式中、
0≦x<0.2、0.4≦y≦0.6、0≦z≦0.2、0≦w≦0.1であり、
Mは、Al、Ti、Mg、Znおよびこれらの組み合わせからなる群より選択された一つである。) - 前記セパレータは、ポリエチレン、ポリプロピレン、ポリフッ化ビニリデンまたはこれらの2層以上の多層膜で形成された基材を含む、請求項1に記載のリチウム2次電池。
- 前記セパレータは、多孔性基材と前記基材の少なくとも一面に形成されたコーティング層とをさらに含む、請求項1に記載のリチウム2次電池。
- 前記コーティング層は、高分子および金属充填材を含む、請求項4に記載のリチウム2次電池。
- 前記金属充填材は、金属酸化物、金属水酸化物、金属のリン酸塩、金属の硝酸塩、金属の炭酸塩、金属の硫酸塩、金属のアルコキシド、ペロブスカイト型構造を有する金属酸化物、セラミックスおよびこれらの組み合わせからなる群より選択された一つを含む、請求項5に記載のリチウム2次電池。
- 前記高分子は、ポリフッ化ビニリデン(PVdF)、ポリ(フッ化ビニリデン−ヘキサフルオロプロピレン)共重合体(P(VdF−HFP))、ポリエチレンオキシド(PEO)、ポリアクリロニトリル(PAN)、ポリイミド(PI)、ポリアミック酸(PAA)、ポリアミドイミド(PAI)およびアラミド(aramid)からなる群より選択された一つを含むものである、請求項5に記載のリチウム2次電池。
- 前記コーティング層は、コーティング層全体100重量%中に金属充填材5〜80%を含む、請求項5に記載のリチウム2次電池。
- 前記コーティング層の厚さは、0.5〜5μmである、請求項4に記載のリチウム2次電池。
- 前記セパレータの総厚さは、5〜30μmである、請求項1に記載のリチウム2次電池。
- 前記リチウム2次電池は、天然黒鉛、人造黒鉛、ソフトカーボン、ハードカーボン、メソフェーズピッチ炭化物、焼成されたコークス、シリコン酸化物または表面が導電性カーボンでコーティングされたシリコン酸化物およびこれらの組み合わせからなる群より選択された一つを含む負極活物質を含む負極をさらに含む、請求項1に記載のリチウム2次電池。
- 前記セパレータの基材は、少なくとも1種のポリオレフィン系単一膜または多層膜であり、
前記リチウム2次電池は、非水電解液をさらに含み、
前記非水電解液は、LiPF6の支持電解塩を含む、請求項1に記載のリチウム2次電池。 - 前記非水電解液中の支持電解塩の濃度は、0.5M〜2Mである、請求項12に記載のリチウム2次電池。
- 前記多孔性基材の気孔度は48%〜60%である、請求項1に記載のリチウム2次電池。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020110107658A KR101649130B1 (ko) | 2011-10-20 | 2011-10-20 | 리튬 이차 전지 |
KR10-2011-0107658 | 2011-10-20 |
Publications (1)
Publication Number | Publication Date |
---|---|
JP2013089593A true JP2013089593A (ja) | 2013-05-13 |
Family
ID=46796468
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2012206583A Pending JP2013089593A (ja) | 2011-10-20 | 2012-09-20 | リチウム2次電池 |
Country Status (5)
Country | Link |
---|---|
US (1) | US9099739B2 (ja) |
EP (1) | EP2584628B1 (ja) |
JP (1) | JP2013089593A (ja) |
KR (1) | KR101649130B1 (ja) |
CN (1) | CN103066319B (ja) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20140145813A (ko) * | 2013-06-14 | 2014-12-24 | 삼성에스디아이 주식회사 | 리튬 이차 전지 |
JP2016532250A (ja) * | 2014-04-04 | 2016-10-13 | エルジー・ケム・リミテッド | 寿命性能が向上した二次電池 |
JP2016534531A (ja) * | 2013-11-06 | 2016-11-04 | エルジー・ケム・リミテッド | 電気化学素子用分離膜 |
Families Citing this family (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10559802B2 (en) | 2012-08-07 | 2020-02-11 | Celgard, Llc | Separator membranes for lithium ion batteries and related methods |
CN104051689B (zh) * | 2013-03-13 | 2020-06-02 | 三星Sdi株式会社 | 隔板和包括该隔板的可再充电锂电池 |
KR101715696B1 (ko) * | 2013-04-05 | 2017-03-13 | 주식회사 엘지화학 | 수명 성능이 향상된 이차전지 |
US10002719B2 (en) * | 2014-04-21 | 2018-06-19 | Lg Chem, Ltd. | Separator having binder layer, and electrochemical device comprising the separator and method of preparing the separator |
CN104466248B (zh) * | 2014-12-17 | 2017-06-16 | 东莞新能源科技有限公司 | 一种电解液及使用该电解液的锂离子电池 |
DE112016000907T5 (de) * | 2015-02-25 | 2017-11-09 | Celgard, Llc | Verbesserte Separatoren für wiederaufladbare Hochspannungslithiumbatterien und damit in Beziehung stehende Verfahren |
KR101868797B1 (ko) * | 2016-03-16 | 2018-06-19 | 상명대학교산학협력단 | 수압을 이용한 다공성 고분자 분리막의 제조방법 |
WO2017212597A1 (ja) * | 2016-06-08 | 2017-12-14 | 日産自動車株式会社 | 非水電解質二次電池 |
JP7059931B2 (ja) * | 2016-09-15 | 2022-04-26 | 日本電気株式会社 | リチウムイオン二次電池 |
CN106784673A (zh) * | 2016-10-18 | 2017-05-31 | 湖南锂顺能源科技有限公司 | 一种尖晶石型镍锰酸锂电池 |
CN107134576B (zh) * | 2017-04-01 | 2020-03-10 | 中南大学 | 一种Co2AlO4材料及其制备方法和应用 |
CN106966438B (zh) * | 2017-04-01 | 2018-12-07 | 中南大学 | 一种球形Co2AlO4材料及其制备方法和应用 |
JP6783735B2 (ja) * | 2017-09-19 | 2020-11-11 | 株式会社東芝 | リチウムイオン二次電池用の電極群、二次電池、電池パック及び車両 |
KR102235277B1 (ko) * | 2018-03-15 | 2021-04-01 | 삼성에스디아이 주식회사 | 전극 조립체 및 이를 포함하는 이차 전지 |
WO2020129411A1 (ja) * | 2018-12-18 | 2020-06-25 | 日本碍子株式会社 | リチウム二次電池 |
KR102462952B1 (ko) * | 2019-04-10 | 2022-11-04 | 주식회사 엘지화학 | 이차전지용 양극 활물질, 그 제조방법 및 이를 포함하는 리튬 이차전지 |
CN109970347A (zh) * | 2019-04-29 | 2019-07-05 | 齐鲁工业大学 | 一种提高锂离子电池性能的TeO2-V2O5-CuO微晶玻璃负极材料 |
CN112436179A (zh) * | 2020-12-07 | 2021-03-02 | 上汽大众汽车有限公司 | 一种高安全锂离子电池 |
Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000235857A (ja) * | 1998-12-18 | 2000-08-29 | Sanyo Electric Co Ltd | リチウム二次電池 |
JP2001319634A (ja) * | 2000-04-10 | 2001-11-16 | Celgard Inc | 高エネルギー充電型リチウム電池用セパレーター |
JP2002358965A (ja) * | 2001-03-26 | 2002-12-13 | Toshiba Corp | 正極活物質及び非水電解質二次電池 |
JP2006196293A (ja) * | 2005-01-13 | 2006-07-27 | Sumitomo Metal Mining Co Ltd | 非水系電解質二次電池用正極活物質の製造方法、非水系電解質二次電池用正極活物質および非水系電解質二次電池 |
JP2007027100A (ja) * | 2005-06-14 | 2007-02-01 | Matsushita Electric Ind Co Ltd | 非水電解質二次電池 |
JP2007188777A (ja) * | 2006-01-13 | 2007-07-26 | Sony Corp | セパレータおよび非水電解質電池 |
JP2007335406A (ja) * | 2006-05-19 | 2007-12-27 | Matsushita Electric Ind Co Ltd | 非水電解質二次電池 |
JP2008066047A (ja) * | 2006-09-06 | 2008-03-21 | Matsushita Electric Ind Co Ltd | 非水電解質電池およびそのセパレータ |
JP2011113921A (ja) * | 2009-11-30 | 2011-06-09 | Teijin Ltd | 非水系二次電池用セパレータ及び非水系二次電池 |
JP2011138762A (ja) * | 2009-12-04 | 2011-07-14 | Sony Corp | 非水電解質二次電池およびセパレータ |
JP2011154936A (ja) * | 2010-01-28 | 2011-08-11 | Hitachi Maxell Ltd | 電池用セパレータおよびリチウム二次電池 |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA2226366C (en) * | 1995-08-28 | 2002-05-21 | Asahi Kasei Kogyo Kabushiki Kaisha | Novel battery and method for producing the same |
JP3175730B2 (ja) | 1998-04-27 | 2001-06-11 | 住友化学工業株式会社 | 非水電解質電池セパレーターとリチウム二次電池 |
TW460505B (en) | 1998-04-27 | 2001-10-21 | Sumitomo Chemical Co | Separator for nonaqueous electrolyte battery and lithium secondary battery made from the same |
JP3471244B2 (ja) * | 1999-03-15 | 2003-12-02 | 株式会社東芝 | 非水電解液二次電池の製造方法 |
DE10238941B4 (de) | 2002-08-24 | 2013-03-28 | Evonik Degussa Gmbh | Elektrischer Separator, Verfahren zu dessen Herstellung und Verwendung in Lithium-Hochleistungsbatterien sowie eine den Separator aufweisende Batterie |
KR100790280B1 (ko) * | 2004-03-30 | 2008-01-02 | 마쯔시다덴기산교 가부시키가이샤 | 비수전해액 2차 전지 |
KR100727248B1 (ko) * | 2007-02-05 | 2007-06-11 | 주식회사 엘지화학 | 다공성 활성층이 코팅된 유기/무기 복합 분리막 및 이를구비한 전기화학소자 |
JP2009032682A (ja) | 2007-06-28 | 2009-02-12 | Hitachi Maxell Ltd | リチウムイオン二次電池 |
KR20090050686A (ko) | 2007-11-16 | 2009-05-20 | 에스케이에너지 주식회사 | 물성이 뛰어나고 투과도 및 표면에너지가 높은 폴리에틸렌미세다공막 |
KR100947181B1 (ko) * | 2007-11-19 | 2010-03-15 | 주식회사 엘지화학 | 다공성 코팅층이 형성된 세퍼레이터 및 이를 구비한전기화학소자 |
JP2009158484A (ja) * | 2007-12-06 | 2009-07-16 | Sumitomo Chemical Co Ltd | 非水電解液二次電池 |
JP2010034024A (ja) * | 2008-06-25 | 2010-02-12 | Hitachi Maxell Ltd | リチウムイオン二次電池 |
JP2010097696A (ja) * | 2008-10-14 | 2010-04-30 | Nec Tokin Corp | リチウムイオン電池 |
EP2405510B1 (en) * | 2009-03-03 | 2015-11-25 | LG Chem, Ltd. | Lithium secondary battery containing high energy density positive electrode materials and an organic/inorganic composite microporous separator membrane |
-
2011
- 2011-10-20 KR KR1020110107658A patent/KR101649130B1/ko active IP Right Grant
-
2012
- 2012-06-27 US US13/535,109 patent/US9099739B2/en active Active
- 2012-09-06 CN CN201210327749.8A patent/CN103066319B/zh active Active
- 2012-09-06 EP EP12183283.6A patent/EP2584628B1/en active Active
- 2012-09-20 JP JP2012206583A patent/JP2013089593A/ja active Pending
Patent Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000235857A (ja) * | 1998-12-18 | 2000-08-29 | Sanyo Electric Co Ltd | リチウム二次電池 |
JP2001319634A (ja) * | 2000-04-10 | 2001-11-16 | Celgard Inc | 高エネルギー充電型リチウム電池用セパレーター |
JP2002358965A (ja) * | 2001-03-26 | 2002-12-13 | Toshiba Corp | 正極活物質及び非水電解質二次電池 |
JP2006196293A (ja) * | 2005-01-13 | 2006-07-27 | Sumitomo Metal Mining Co Ltd | 非水系電解質二次電池用正極活物質の製造方法、非水系電解質二次電池用正極活物質および非水系電解質二次電池 |
JP2007027100A (ja) * | 2005-06-14 | 2007-02-01 | Matsushita Electric Ind Co Ltd | 非水電解質二次電池 |
JP2007188777A (ja) * | 2006-01-13 | 2007-07-26 | Sony Corp | セパレータおよび非水電解質電池 |
JP2007335406A (ja) * | 2006-05-19 | 2007-12-27 | Matsushita Electric Ind Co Ltd | 非水電解質二次電池 |
JP2008066047A (ja) * | 2006-09-06 | 2008-03-21 | Matsushita Electric Ind Co Ltd | 非水電解質電池およびそのセパレータ |
JP2011113921A (ja) * | 2009-11-30 | 2011-06-09 | Teijin Ltd | 非水系二次電池用セパレータ及び非水系二次電池 |
JP2011138762A (ja) * | 2009-12-04 | 2011-07-14 | Sony Corp | 非水電解質二次電池およびセパレータ |
JP2011154936A (ja) * | 2010-01-28 | 2011-08-11 | Hitachi Maxell Ltd | 電池用セパレータおよびリチウム二次電池 |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20140145813A (ko) * | 2013-06-14 | 2014-12-24 | 삼성에스디아이 주식회사 | 리튬 이차 전지 |
US10056594B2 (en) | 2013-06-14 | 2018-08-21 | Samsung Sdi Co., Ltd. | Rechargeable lithium battery |
KR102041586B1 (ko) * | 2013-06-14 | 2019-11-06 | 삼성에스디아이 주식회사 | 리튬 이차 전지 |
US10978688B2 (en) | 2013-06-14 | 2021-04-13 | Samsung Sdi Co., Ltd. | Rechargeable lithium battery |
US11476542B2 (en) | 2013-06-14 | 2022-10-18 | Samsung Sdi Co., Ltd. | Rechargeable lithium battery |
US11688884B2 (en) | 2013-06-14 | 2023-06-27 | Samsung Sdi Co., Ltd. | Rechargeable lithium battery |
JP2016534531A (ja) * | 2013-11-06 | 2016-11-04 | エルジー・ケム・リミテッド | 電気化学素子用分離膜 |
US10505167B2 (en) | 2013-11-06 | 2019-12-10 | Lg Chem, Ltd. | Separator for electrochemical device |
JP2016532250A (ja) * | 2014-04-04 | 2016-10-13 | エルジー・ケム・リミテッド | 寿命性能が向上した二次電池 |
Also Published As
Publication number | Publication date |
---|---|
EP2584628A2 (en) | 2013-04-24 |
EP2584628B1 (en) | 2019-04-24 |
CN103066319B (zh) | 2018-02-16 |
US9099739B2 (en) | 2015-08-04 |
EP2584628A3 (en) | 2017-01-25 |
CN103066319A (zh) | 2013-04-24 |
KR20130043485A (ko) | 2013-04-30 |
US20130101886A1 (en) | 2013-04-25 |
KR101649130B1 (ko) | 2016-08-19 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN111883816B (zh) | 可再充电锂电池 | |
CN111883818B (zh) | 可再充电锂电池 | |
CN110676429B (zh) | 可再充电锂电池 | |
KR101649130B1 (ko) | 리튬 이차 전지 | |
KR100869806B1 (ko) | 리튬 이차 전지용 음극 및 이를 포함하는 리튬 이차 전지 | |
CN111883819A (zh) | 可再充电锂电池 | |
CN111883814A (zh) | 可再充电锂电池 | |
CN110326152B (zh) | 电极组件、生产其的方法和包括其的二次电池 | |
KR20130122471A (ko) | 리튬 이차 전지용 음극 조성물, 이를 포함하는 리튬 이차 전지용 음극 및 상기 음극을 포함하는 리튬 이차 전지 | |
KR20140026856A (ko) | 리튬 이차 전지용 음극 및 이를 포함하는 리튬 이차 전지 | |
KR20130054127A (ko) | 리튬 이차 전지용 전해액 및 이를 포함하는 리튬 이차 전지 | |
KR20140024587A (ko) | 리튬 이차 전지 | |
KR102356495B1 (ko) | 리튬 이차 전지용 양극 활물질 및 이를 포함하는 리튬 이차 전지 | |
JP6526375B2 (ja) | リチウム二次電池用非水電解質およびこれを含むリチウム二次電池 | |
US20140212745A1 (en) | Positive active material for lithium secondary battery and lithium secondary battery | |
KR102226429B1 (ko) | 리튬 이차 전지용 양극 활물질, 이를 포함하는 양극 및 이를 포함하는 리튬 이차 전지 | |
KR102114229B1 (ko) | 리튬 이차 전지용 양극 활물질, 이의 제조방법 및 이를 포함하는 리튬 이차 전지 | |
KR102515097B1 (ko) | 리튬 이차 전지 | |
KR20140055979A (ko) | 리튬 이차 전지용 양극 및 이를 포함하는 리튬 이차 전지 | |
CN109314279B (zh) | 锂二次电池电解液和包括锂二次电池电解液的锂二次电池 | |
KR20200129673A (ko) | 이차 전지용 세퍼레이터, 이의 제조방법 및 이를 포함하는 리튬 이차 전지 | |
KR20090108317A (ko) | 리튬 이차 전지 및 그의 제조 방법 | |
JP2024515948A (ja) | リチウム二次電池用電極およびこれを含むリチウム二次電池 | |
KR20200087022A (ko) | 리튬 이차 전지용 세퍼레이터, 이의 제조방법 및 이를 포함하는 리튬 이차 전지 | |
JP7191414B2 (ja) | リチウム二次電池用分離膜、その製造方法、およびそれを含むリチウム二次電池 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20150826 |
|
RD03 | Notification of appointment of power of attorney |
Free format text: JAPANESE INTERMEDIATE CODE: A7423 Effective date: 20150826 |
|
A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20160629 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20160705 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20160930 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20161108 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20170207 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20170404 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20170623 |
|
A02 | Decision of refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A02 Effective date: 20171017 |