WO2014182001A1 - 리튬 이차전지용 음극 및 이를 포함하는 리튬이온 이차 전지 - Google Patents
리튬 이차전지용 음극 및 이를 포함하는 리튬이온 이차 전지 Download PDFInfo
- Publication number
- WO2014182001A1 WO2014182001A1 PCT/KR2014/003848 KR2014003848W WO2014182001A1 WO 2014182001 A1 WO2014182001 A1 WO 2014182001A1 KR 2014003848 W KR2014003848 W KR 2014003848W WO 2014182001 A1 WO2014182001 A1 WO 2014182001A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- negative electrode
- secondary battery
- metal member
- current collector
- carbonate
- Prior art date
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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
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/64—Carriers or collectors
- H01M4/66—Selection of materials
- H01M4/661—Metal or alloys, e.g. alloy coatings
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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
- 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
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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
- H01M10/04—Construction or manufacture in general
- H01M10/0431—Cells with wound or folded electrodes
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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
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/64—Carriers or collectors
- H01M4/66—Selection of materials
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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
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/64—Carriers or collectors
- H01M4/66—Selection of materials
- H01M4/661—Metal or alloys, e.g. alloy coatings
- H01M4/662—Alloys
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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
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/64—Carriers or collectors
- H01M4/66—Selection of materials
- H01M4/665—Composites
- H01M4/667—Composites in the form of layers, e.g. coatings
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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
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/64—Carriers or collectors
- H01M4/70—Carriers or collectors characterised by shape or form
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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
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/531—Electrode connections inside a battery casing
- H01M50/536—Electrode connections inside a battery casing characterised by the method of fixing the leads to the electrodes, e.g. by welding
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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
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
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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
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M2004/026—Electrodes composed of, or comprising, active material characterised by the polarity
- H01M2004/027—Negative electrodes
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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
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/531—Electrode connections inside a battery casing
- H01M50/538—Connection of several leads or tabs of wound or folded electrode stacks
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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
- 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 negative electrode for a lithium secondary battery capable of preventing dendrite formation in a battery, and a lithium ion secondary battery including the same.
- the secondary battery may be a nickel-cadmium battery, a nickel-metal hydride battery, a nickel-hydrogen battery, or a lithium secondary battery.
- the lithium secondary battery has a higher operating voltage than the nickel-cadmium battery or the nickel-metal hydride battery. It is reported to be more than three times (3.6V) high and have excellent energy density characteristics per unit weight, and the field of application is rapidly expanding.
- the dendrite is a material formed by depositing on the surface of the cathode as metal foreign substances (Fe, Cu, Ni, Co, Mn, Zn, Sn, Zr, etc.) formed from the electrode at the time of cell manufacture are oxidized.
- the dendrites not only decrease the cycle performance of the battery, but also increase the cell failure rate, and penetrate the separator by external pressure or vibration to connect the anode / cathode to each other, causing short circuits in the electrode, thereby degrading cell safety.
- the present invention provides a secondary battery negative electrode capable of suppressing dendrite formation on a surface.
- the present invention provides a secondary battery including the negative electrode.
- a negative electrode current collector a negative electrode active material coated on the negative electrode current collector, and
- the negative electrode including a non-coating portion is not coated with a negative electrode active material in a state that a portion of the negative electrode current collector protrudes to one side
- a negative electrode for a secondary battery including a metal member having a higher reactivity or reduction to metal oxide than the negative electrode current collector, which is bonded to the non-coating portion.
- the present invention provides a secondary battery including the negative electrode.
- an electrode assembly formed by winding a positive electrode, a negative electrode, and a separator formed by coating each active material on at least one surface of a metal current collector; And in the secondary battery comprising a housing for accommodating the electrode assembly and the non-aqueous electrolyte,
- a plurality of positive electrode non-coating portions and negative electrode non-coating portions in which some of the metal current collectors are protruded and are not coated with an active material;
- It provides a secondary battery comprising a positive electrode lead and a negative electrode lead which is electrically connected to the positive electrode and the negative electrode uncoated portion, respectively, protruding to the outside of the packaging material.
- the secondary battery when the secondary battery is manufactured, by suppressing the formation of dendrite on the negative electrode non-coating portion and forming a metal member which lowers the occurrence rate of internal short circuit, it is possible to improve the safety of the battery.
- FIG. 1 is a plan view of a lithium secondary battery according to an exemplary embodiment of the present invention.
- a negative electrode active material coated on the negative electrode current collector and
- the negative electrode including a non-coating portion is not coated with a negative electrode active material in a state that a portion of the negative electrode current collector protrudes to one side
- a negative electrode for a secondary battery including a metal member having a higher reactivity or reduction to metal oxide than the negative electrode current collector, which is bonded to the non-coating portion.
- the negative electrode current collector is not particularly limited as long as it has conductivity without causing chemical change during charging and discharging.
- steel, aluminum, copper, nickel, titanium, calcined carbon, or Surface treated with carbon, nickel, titanium or silver on the surface of aluminum or stainless steel may be used.
- the metal member is a material having a higher oxidation reactivity or reducibility to metal oxides such as Fe, Cu, Ni, Co, Mn, Zn, Sn, Zr, etc., than the negative electrode current collector, and does not cause side reactions in the battery. If it does not restrict
- the metal member may be formed to point contact on one side of the uncoated portion or to cover the entire surface of the uncoated portion.
- the metal member may be joined by a conventional welding method, for example, may be joined using a laser, ultrasonic or resistance welding method.
- the metal member is joined without substantially stepping. That is, when the electrode and the separator are wound in order to manufacture a cylindrical battery, electrical breakage is likely to occur because the pressure between the active material applying portion and the uncoated portion of the current collector is particularly higher than that of other portions. Therefore, when a step is formed between the negative electrode active material coated portion and the non-coated portion to which the metal member is bonded, damage to the entire surface of the current collector may occur when the negative electrode current collector is pressurized. Therefore, it is preferable to form a metal member with the negative electrode current collector and the plain portion of the negative electrode current collector substantially without step so that the front surface of the negative electrode current collector is evenly pressured. In this case, "substantially without a step” means that the step is small enough to even the pressure of the current collector as described above.
- the metal member is preferably a rectangular or oval sheet-like or plate-shaped member having a thickness of about 0.001 to about 5 mm and a length of about 0.1 to about 10 mm, and may be formed of other strips or pipes. It may be. If the thickness of the metal member is 0.001 mm or less, there is a possibility that the joining is substantially difficult and productivity may be reduced. When the thickness of the metal member exceeds 5 mm, the thickness of the battery is unnecessarily increased, and a severe step is formed. There is a problem.
- a part of the negative electrode current collector which is more reactive than the negative electrode current collector is further bonded to a portion of the negative electrode current collector during manufacturing of the negative electrode, such that before oxidized metal foreign matters are deposited on the surface of the negative electrode during charge and discharge.
- the high reducible metal is more reactive than copper.
- the impurities react with the cathode surface, they first react with aluminum, which is a metal member, or with a highly reducing metal.
- the dendrites are first formed on the surface of the metal member before being attached to the surface of the negative electrode in the oxidized state, the dendrites are formed, thereby suppressing the formation of the dendrite on the negative electrode surface.
- the present invention provides a secondary battery including the negative electrode.
- An electrode assembly formed by winding an anode and a cathode and a separator formed by coating each active material on at least one surface of a metal current collector;
- the secondary battery including the electrode assembly and the outer material containing the non-aqueous electrolyte
- a plurality of positive electrode non-coating portions and negative electrode non-coating portions in which some of the metal current collectors are protruded and are not coated with an active material;
- It provides a secondary battery comprising a positive electrode lead and a negative electrode lead which is electrically connected to the positive electrode and the negative electrode uncoated portion, respectively, protruding to the outside of the packaging material.
- the positive electrode current collector is not particularly limited as long as it has high conductivity without causing chemical change in the battery.
- stainless steel, aluminum, nickel, titanium, sintering Carbon, or a surface treated with carbon, nickel, titanium, silver, or the like on the surface of aluminum or stainless steel may be used.
- the current collector may form fine irregularities on its surface to increase the adhesion of the positive electrode active material, and may be in various forms such as a film, a sheet, a foil, a net, a porous body, a foam, and a nonwoven fabric.
- the negative electrode active material may be, for example, carbon such as hardly graphitized carbon or graphite carbon; Li x Fe 2 O 3 (0 ⁇ x ⁇ 1), Li x WO 2 (0 ⁇ x ⁇ 1), Sn x Me 1-x Me ' y O z (Me: Mn, Fe, Pb, Ge; Me' Metal complex oxides such as Al, B, P, Si, Group 1, Group 2, Group 3 elements of the periodic table, halogen, 0 ⁇ x ⁇ 1; 1 ⁇ y ⁇ 3; 1 ⁇ z ⁇ 8); Lithium metal; Lithium alloys; Silicon-based alloys; Tin-based alloys; SnO, SnO 2 , PbO, PbO 2 , Pb 2 O 3 , Pb 3 O 4 , Sb 2 O 3 , Sb 2 O 4 , Sb 2 O 5 , GeO, GeO 2 , Bi 2 O 3 , Bi 2 O 4 and Oxides such as Bi 2 O 5 ; Conductive
- the positive electrode and the negative electrode active material may further include a binder, a filler, a conductive material, and the like, which are commonly used in manufacturing a secondary battery.
- the separator may be formed of a thermoplastic resin such as polyethylene (PE), polypropylene (PP), or the like, which is typically porous.
- a thermoplastic resin such as polyethylene (PE), polypropylene (PP), or the like, which is typically porous.
- the electrolyte is a lithium salt-containing non-aqueous electrolyte
- the non-aqueous electrolyte preferably contains a carbonate compound so as to prevent corrosion of the metal member.
- the carbonate compound is a cyclic carbonate including ethylene carbonate (EC), propylene carbonate (PC), diethyl carbonate (DEC), dimethyl carbonate (DMC), ethyl methyl carbonate (EMC), dipropyl carbonate (DPC Linear carbonate, dimethyl sulfoxide, acetonitrile, dimethoxyethane, diethoxyethane, tetrahydrofuran, N-methyl-2-pyrrolidone (NMP), methyl propionate, ethyl propionate, propyl A single substance or a mixture of two or more selected from propionate and gamma butyrolactone (GBL).
- EC ethylene carbonate
- PC propylene carbonate
- DEC diethyl carbonate
- DMC dimethyl carbonate
- EMC ethyl methyl carbonate
- DPC Linear carbonate dimethyl sulfoxide, acetonitrile, dimethoxyethane, dieth
- the secondary battery of the present invention having such a structure can exhibit high energy density, high output characteristics, improved safety and stability.
- a positive electrode sheet was prepared by coating, drying and pressing on a long sheet aluminum foil.
- a conventional negative electrode active material was coated on copper foil, dried and pressed to prepare a negative electrode sheet.
- the aluminum metal member was laser-welded to the plain part of the said negative electrode sheet.
- the negative electrode, the separator, the positive electrode, the separator and the negative electrode were sequentially stacked, then wound up and embedded in a cylindrical battery case.
- a cylindrical battery was prepared by injecting a carbonate electrolyte solution of 1M LiPF 6 into the battery case.
- a cylindrical battery was manufactured in the same manner as in the above example, except that the step of joining the aluminum metal member to the non-coated portion of the negative electrode sheet was not performed.
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Composite Materials (AREA)
- Secondary Cells (AREA)
- Battery Electrode And Active Subsutance (AREA)
- Cell Electrode Carriers And Collectors (AREA)
- Sealing Battery Cases Or Jackets (AREA)
- Connection Of Batteries Or Terminals (AREA)
Abstract
Description
구분 | 저전압 분량률(샘플수: 10개) | 내부 미세 단락 발생 |
실시예 | 0% | 0% |
비교예 | 40% | 40% |
Claims (11)
- 상기 음극집전체 상에 코팅된 음극활물질, 및상기 음극집전체 일부분이 일측으로 돌출된 상태로 음극활물질이 코팅되지 않은 무지부(음극탭)를 포함하는 음극에 있어서,상기 무지부에 접합되어 있는, 상기 음극집전체 보다 금속 산화물에 대한 반응성 또는 환원성이 높은 금속 부재를 포함하는 것을 특징으로 하는 이차전지용 음극.
- 청구항 1에 있어서,상기 음극집전체는 스테인리스 스틸, 알루미늄, 구리, 니켈, 티탄, 소성 탄소, 또는 카본, 니켈, 티탄 또는 은으로 표면 처리된 알루미늄 또는 스테인리스 스틸을 포함하는 것을 특징으로 하는 이차전지용 음극.
- 청구항 1에 있어서,상기 금속 부재는 알루미늄, 금, 은, 백금 및 이들의 합금으로 이루어진 군으로부터 선택된 단일물 또는 2종 이상의 혼합물인 것을 특징으로 하는 이차전지용 음극.
- 청구항 1에 있어서,상기 금속 부재는 일부분이 상기 무지부 일측에 점 접촉되거나, 또는 무지부 전면을 덮도록 형성하는 것을 특징으로 하는 이차전지용 음극.
- 청구항 1 또는 청구항 4에 있어서,상기 금속 부재는 레이저, 초음파 또는 저항 용접 방법을 이용해 접합하여 형성하는 것을 특징으로 하는 이차전지용 음극.
- 청구항 1에 있어서,상기 금속 부재는 상기 음극집전체와 단차 없이 접합하여 형성하는 것을 특징으로 하는 이차전지용 음극.
- 청구항 1에 있어서,상기 금속 부재는 사각형 또는 타원형의 시트형 부재 또는 판형 부재인 것을 특징으로 하는 이차전지용 음극.
- 청구항 7에 있어서,상기 금속 부재의 두께는 0.001 내지 5 mm이고, 길이는 0.1 내지 10 mm인 것을 특징으로 하는 이차전지용 음극.
- 청구항 1에 기재된 이차전지용 음극을 포함하는 것을 특징으로 하는 이차전지.
- 청구항 9에 있어서,상기 이차전지는금속 집전체의 적어도 일면에 각각의 활물질을 코팅하여 이루어진 양극 및 음극과 분리막을 권취시켜 형성한 전극조립체; 및상기 전극조립체 및 비수계 전해액을 수납하는 외장재를 포함하는 이차전지에 있어서,상기 금속 집전체 중 일부가 돌출된 상태로 활물질이 코팅되어 있지 않은 다수의 양극 무지부 및 음극 무지부(양극탭 및 음극탭),상기 음극 무지부에 접합되어 외장재 내부에 위치하는 금속 부재, 및상기 양극 및 음극 무지부에 각각 전기적으로 연결되어 외장재 외부로 돌출된 양극리드 및 음극리드를 포함하는 것을 특징으로 하는 이차전지.
- 청구항 10에 있어서,상기 비수계 전해액은 에틸렌 카보네이트(EC), 프로필렌카보네이트(PC)를 포함하는 환형 카보네이트와, 디에틸카보네이트(DEC), 디메틸 카보네이트(DMC), 에틸메틸카보네이트(EMC), 디프로필카보네이트(DPC), 디메틸설폭사이드, 아세토니트릴, 디메톡시에탄, 디에톡시에탄, 테트라하이드로퓨란, N-메틸-2-피롤리돈(NMP), 메틸 프로피오네이트, 에틸 프로피오네이트, 프로필 프로피오네이트 및 감마부티로락톤(GBL)로 이루어진 군으로부터 선택된 단일물 또는 2종 이상의 혼합물인 것을 특징으로 하는 이차전지.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
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JP2015515967A JP5937273B2 (ja) | 2013-05-06 | 2014-04-30 | リチウム二次電池用負極及びこれを含むリチウムイオン二次電池 |
EP14784181.1A EP2838141B1 (en) | 2013-05-06 | 2014-04-30 | Cathode for lithium secondary battery and lithium secondary battery containing same |
CN201480001083.4A CN104285319B (zh) | 2013-05-06 | 2014-04-30 | 锂二次电池用负极及包含该负极的锂离子二次电池 |
US14/463,725 US10050250B2 (en) | 2013-05-06 | 2014-08-20 | Anode for lithium secondary battery and lithium ion secondary battery including the same |
Applications Claiming Priority (2)
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KR1020130050595A KR101595613B1 (ko) | 2013-05-06 | 2013-05-06 | 리튬 이차전지용 음극 및 이를 포함하는 리튬이온 이차 전지 |
KR10-2013-0050595 | 2013-05-06 |
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Application Number | Title | Priority Date | Filing Date |
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US14/463,725 Continuation US10050250B2 (en) | 2013-05-06 | 2014-08-20 | Anode for lithium secondary battery and lithium ion secondary battery including the same |
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WO2014182001A1 true WO2014182001A1 (ko) | 2014-11-13 |
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PCT/KR2014/003848 WO2014182001A1 (ko) | 2013-05-06 | 2014-04-30 | 리튬 이차전지용 음극 및 이를 포함하는 리튬이온 이차 전지 |
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US (1) | US10050250B2 (ko) |
EP (1) | EP2838141B1 (ko) |
JP (1) | JP5937273B2 (ko) |
KR (1) | KR101595613B1 (ko) |
CN (1) | CN104285319B (ko) |
WO (1) | WO2014182001A1 (ko) |
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KR101709161B1 (ko) * | 2015-03-09 | 2017-02-23 | 주식회사 이아이지 | 이차 전지 및 원통형 리튬 이차 전지 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4622277A (en) * | 1985-09-30 | 1986-11-11 | Duracell Inc. | Electrochemical cells |
JPH06187996A (ja) * | 1992-12-18 | 1994-07-08 | Yuasa Corp | 電池とその製造方法 |
JPH09231962A (ja) * | 1995-12-22 | 1997-09-05 | Canon Inc | 二次電池及びその製造方法 |
KR100871917B1 (ko) * | 2007-06-26 | 2008-12-05 | 주식회사엘콤 | 납땜성과 염수 내식성이 우수한 이차 전지용 양극 탭 및 그제조 방법과, 이를 이용한 이차 전지 및 이차 전지 모듈 |
KR20110137891A (ko) * | 2010-06-18 | 2011-12-26 | 전자부품연구원 | 2차 전지의 전극단자, 이를 구비한 2차 전지 및 그의 제조방법 |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL237121A (ko) * | 1958-03-18 | |||
US5728482B1 (en) | 1995-12-22 | 1999-11-09 | Canon Kk | Secondary battery and method for manufacturing the same |
JPH11250900A (ja) * | 1998-02-26 | 1999-09-17 | Sony Corp | 非水電解液二次電池用電極の製造方法、製造装置、および電極ならびにこの電極を用いた非水電解液二次電池 |
JP2004311141A (ja) | 2003-04-04 | 2004-11-04 | Sony Corp | 電極およびそれを用いた電池 |
KR100624953B1 (ko) * | 2004-11-29 | 2006-09-18 | 삼성에스디아이 주식회사 | 리튬 이차 전지 |
JP5260838B2 (ja) * | 2005-08-30 | 2013-08-14 | 三洋電機株式会社 | 非水系二次電池 |
KR100914108B1 (ko) * | 2007-05-03 | 2009-08-27 | 삼성에스디아이 주식회사 | 전극 조립체 및 이를 구비하는 이차 전지 |
JP2009123374A (ja) * | 2007-11-12 | 2009-06-04 | Fdk Corp | 非水電解質蓄電デバイス |
JP2009187753A (ja) * | 2008-02-05 | 2009-08-20 | Fdk Corp | 蓄電素子 |
JP2013026057A (ja) | 2011-07-22 | 2013-02-04 | Sharp Corp | 集電体および非水系二次電池 |
JP2014211948A (ja) * | 2011-08-31 | 2014-11-13 | 三洋電機株式会社 | 非水電解質二次電池 |
-
2013
- 2013-05-06 KR KR1020130050595A patent/KR101595613B1/ko active IP Right Grant
-
2014
- 2014-04-30 JP JP2015515967A patent/JP5937273B2/ja active Active
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- 2014-04-30 CN CN201480001083.4A patent/CN104285319B/zh active Active
- 2014-04-30 WO PCT/KR2014/003848 patent/WO2014182001A1/ko active Application Filing
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Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4622277A (en) * | 1985-09-30 | 1986-11-11 | Duracell Inc. | Electrochemical cells |
JPH06187996A (ja) * | 1992-12-18 | 1994-07-08 | Yuasa Corp | 電池とその製造方法 |
JPH09231962A (ja) * | 1995-12-22 | 1997-09-05 | Canon Inc | 二次電池及びその製造方法 |
KR100871917B1 (ko) * | 2007-06-26 | 2008-12-05 | 주식회사엘콤 | 납땜성과 염수 내식성이 우수한 이차 전지용 양극 탭 및 그제조 방법과, 이를 이용한 이차 전지 및 이차 전지 모듈 |
KR20110137891A (ko) * | 2010-06-18 | 2011-12-26 | 전자부품연구원 | 2차 전지의 전극단자, 이를 구비한 2차 전지 및 그의 제조방법 |
Non-Patent Citations (1)
Title |
---|
See also references of EP2838141A4 * |
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US20140356674A1 (en) | 2014-12-04 |
EP2838141A1 (en) | 2015-02-18 |
US10050250B2 (en) | 2018-08-14 |
EP2838141A4 (en) | 2015-06-17 |
CN104285319A (zh) | 2015-01-14 |
JP2015519710A (ja) | 2015-07-09 |
EP2838141B1 (en) | 2017-04-26 |
CN104285319B (zh) | 2017-10-27 |
KR20140131699A (ko) | 2014-11-14 |
JP5937273B2 (ja) | 2016-06-22 |
KR101595613B1 (ko) | 2016-02-18 |
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