WO2012044035A2 - 부식방지용 보호층을 포함하는 전극리드, 및 이를 포함하는 이차전지 - Google Patents
부식방지용 보호층을 포함하는 전극리드, 및 이를 포함하는 이차전지 Download PDFInfo
- Publication number
- WO2012044035A2 WO2012044035A2 PCT/KR2011/007090 KR2011007090W WO2012044035A2 WO 2012044035 A2 WO2012044035 A2 WO 2012044035A2 KR 2011007090 W KR2011007090 W KR 2011007090W WO 2012044035 A2 WO2012044035 A2 WO 2012044035A2
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- WO
- WIPO (PCT)
- Prior art keywords
- electrode lead
- electrode
- secondary battery
- protective layer
- lead
- 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.)
- Ceased
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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
- H01M50/543—Terminals
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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
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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
- 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
- H01M50/172—Arrangements of electric connectors penetrating the casing
- H01M50/174—Arrangements of electric connectors penetrating the casing adapted for the shape of the cells
- H01M50/178—Arrangements of electric connectors penetrating the casing adapted for the shape of the cells for pouch or flexible bag cells
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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
- H01M50/543—Terminals
- H01M50/552—Terminals characterised by their shape
- H01M50/553—Terminals adapted for prismatic, pouch or rectangular cells
- H01M50/557—Plate-shaped terminals
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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
- H01M50/543—Terminals
- H01M50/562—Terminals characterised by the 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
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/543—Terminals
- H01M50/564—Terminals characterised by their manufacturing process
- H01M50/566—Terminals characterised by their manufacturing process by welding, soldering or brazing
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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
- H01M50/571—Methods or arrangements for affording protection against corrosion; Selection of materials therefor
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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
- H01M50/572—Means for preventing undesired use or discharge
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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 an electrode lead comprising a protective layer for preventing corrosion and a secondary battery comprising the same.
- lithium secondary batteries Due to the development of technology and increasing demand for mobile devices, the demand for secondary batteries is also rapidly increasing. Among them, lithium secondary batteries with high energy density, high operating voltage and excellent life characteristics are energy sources for various mobile devices as well as various electronic products. Widely used. Lithium secondary batteries are also attracting much attention as energy sources such as electric vehicles and hybrid electric vehicles, which are proposed as alternatives to solve the environmental pollution and global warming problems of conventional gasoline and diesel vehicles that use fossil fuels. And is in some stages of commercialization.
- Secondary batteries may be classified according to the structure of the electrode assembly of the anode / separator / cathode structure.
- a jelly-roll electrode assembly having a structure in which long sheets of positive and negative electrodes are wound in a state where a separator is interposed therebetween, and a plurality of positive and negative electrodes cut in units of a predetermined size are sequentially stacked in a state of a separator.
- a stacked / folding electrode assembly having a structure in which a bi-cell or full-cells in which a positive electrode and a negative electrode of a predetermined unit are stacked with a separator therebetween are wound.
- a pouch-type battery having a stacked or stacked / folding electrode assembly in a pouch-type battery case of an aluminum laminate sheet has attracted much attention due to its low manufacturing cost, low weight, and easy deformation. It is increasing.
- FIG. 1 schematically illustrates a general structure of a pouch-type lithium secondary battery.
- the pouch-type lithium secondary battery 10 is an electrode assembly 30, electrode tabs 40 and 50 extending from the electrode assembly 30, and electrodes welded to the electrode tabs 40 and 50. And an exterior member 20 for accommodating the leads 60 and 70 and the electrode assembly 30.
- the electrode assembly 30 is a power generator in which a positive electrode and a negative electrode are sequentially stacked in a state where a separator is interposed therebetween, and has a stack type or a stack / fold type structure.
- the electrode tabs 40 and 50 extend from each of the pole plates of the electrode assembly 30, and the electrode leads 60 and 70 are electrically connected to the plurality of electrode tabs 40 and 50 extending from each pole plate by welding or the like. It is connected and partly exposed to the exterior of the exterior material 20.
- an insulating film 80 made of a material such as polypropylene (PP) is attached to the upper and lower portions of the electrode leads 60 and 70 to increase the sealing degree with the exterior material 20 and at the same time to secure the electrical insulation state.
- the exterior material 20 is made of an aluminum laminate sheet, provides a storage space for accommodating the electrode assembly 30, and has a pouch shape as a whole.
- the electrode leads (60, 70) must not react with the electrolyte or corrode in the unit cell, externally should not be oxidized in the air, and should be well coupled with the insulating film 80, such as polypropylene Is required.
- electrode layers 60 and 70 are generally coated with a protective layer (not shown).
- a protective layer not shown.
- the cathode lead 60 made of copper and the anode lead 70 made of aluminum are well oxidized and vulnerable to corrosion, nickel and the like are plated on the outer surface thereof.
- the negative electrode lead 60 of the lithium secondary battery 10 a structure in which a nickel thin film is padded on both sides of a copper plate is used, and a clad method of rolling and pasting different kinds of metal plates at high temperature is mainly used.
- the protective layer serves to prevent corrosion of the electrode leads 60 and 70 due to the external environment of the cell, and thus, the protective layer has become an essential component in the electrode leads 60 and 70.
- the electrical conductivity of the protective layer is relatively lower than the electrical conductivity of the electrode leads (60, 70). Specifically, the electrical conductivity of nickel is only about 14.9% of the electrical conductivity of the cathode lead 60 made of copper.
- a protective layer is interposed to reduce the direct contact area between the electrode leads 60 and 70 and the electrode tabs 40 and 50. Let's do it. After all, the protective layer is essential for preventing corrosion of the electrode leads 60 and 70, but acts as a resistance component of the cell, which causes reduction of the electrical conductivity and the electrical contact area.
- the present invention has been made to solve the above problems of the prior art,
- the inventors of the present application have developed an electrode lead in which a protective layer for corrosion protection is selectively formed.
- the internal resistance of the electrode lead is sufficiently improved while achieving the conventional purpose of preventing corrosion of the electrode lead. It was confirmed that the reduction can prevent the deterioration of the cell performance.
- the electrode lead of the secondary battery provides an electrode lead of the secondary battery, characterized in that the protective layer for preventing corrosion is selectively formed only on the electrode lead portion located outside the cell.
- the electrode lead may be at least one of a cathode lead and an anode lead.
- the cathode lead may be made of copper
- the anode lead may be made of aluminum
- the protective layer may be made of nickel.
- the protective layer may be formed on one surface or both surfaces of the electrode lead.
- the protective layer may be formed by coating or plating, in which case the plating may be electroplating.
- the thickness of the protective layer may be 0.1nm to 500 ⁇ m.
- the present invention provides an electrode lead of a secondary battery, wherein a protective layer for preventing corrosion is not formed at a welded portion of the electrode lead and the electrode tab.
- the present invention provides a secondary battery comprising an electrode assembly, an outer material for accommodating the electrode assembly, and the above-described electrode lead electrically connected to the electrode assembly.
- the secondary battery may be a lithium secondary battery, in which case the secondary battery is a pouch-type lithium secondary battery including an adhesive film (that is, an "insulation film") for insulating the electrode lead and the exterior material. It may be.
- an adhesive film that is, an "insulation film”
- the present invention in the electrode lead of the secondary battery, by selectively forming a corrosion protection protective layer only on the electrode lead portion located outside the cell, thereby preventing the corrosion of the electrode lead from the external environment and at the same time can reduce the resistance of the cell There is an advantage.
- FIG. 1 is a schematic diagram of a general structure of a pouch-type lithium secondary battery.
- FIG. 2 is a schematic diagram showing an electrode lead selectively formed corrosion protection layer in accordance with an embodiment of the present invention.
- the electrode lead of a secondary battery such as a lithium ion battery
- the electrode lead is characterized in that a protective layer for preventing corrosion is selectively formed only at an electrode lead portion located outside the cell.
- the protective layer for corrosion protection is coated on all parts of the electrode leads, both inside and outside the cell. Therefore, although the purpose of preventing corrosion can be achieved, the internal resistance of the cell is increased by causing a low electrical conductivity of the protective layer and a decrease in the direct contact area between the electrode lead and the electrode tab.
- a protective layer is selectively formed only on the electrode lead portion located outside the cell, without forming a protective layer on the electrode lead portion which is located inside the cell and is not exposed to external air and foreign substances and is unlikely to corrode. It is formed.
- a protective layer is selectively formed only on the electrode lead portion located outside the cell, without forming a protective layer on the electrode lead portion which is located inside the cell and is not exposed to external air and foreign substances and is unlikely to corrode. It is formed.
- the "cell outside” and the “cell inside” in the present invention can be distinguished based on an insulating film. Since the part of the electrode lead which contacts the sealing part of the exterior material is surrounded by an insulating film, this part is unlikely to be corroded by the external environment. That is, the outer side may be referred to as the "cell outside” and the inner side in which the electrode assembly is accommodated as the “cell inside” based on the portion where the insulating film is located, and the protective layer of the present invention may be formed only at the "cell outside”. .
- the protective layer for preventing corrosion is not formed at the welded portion of the electrode lead and the electrode tab.
- the portion of the electrode lead to be welded with the electrode tab is located inside the cell, and is sealed by welding and is not exposed to the outside, and thus it is not necessary to form a protective layer. Rather, when the protective layer is formed up to the welded portion as in the conventional case, the internal resistance of the cell is increased due to the low electrical conductivity of the protective layer and the reduction of the contact area between the electrode lead and the electrode tab.
- the formation of a protective layer on the welding surface with the electrode tabs may be omitted.
- the electrode leads are welded / sealed with the electrode tabs at the upper and lower portions, there is no need to form a protective layer on both the upper and lower surfaces of the electrode leads.
- the protective layer is not formed at the welded portion of the electrode lead and the electrode tab, and a protective layer is formed at the outer portion of the cell of the electrode lead, except that the remaining portion of the electrode lead except for the welded portion is a protective layer. It may or may not be formed. However, it is not possible to exclude 100% of the possibility that outside air and foreign matter enters the inside of the cell. In order to reliably prevent corrosion of the electrode lead, a protective layer may be applied to the remaining parts of the electrode lead except for the welding part. It would be more desirable to form.
- the selective protective layer according to the present invention may be formed on at least one of the cathode lead and the anode lead. That is, a protective layer is formed only at the outer part of the cell of the cathode lead, and a protective layer is formed at both the cell and the outer part of the anode lead, or a protective layer is formed only at the outer part of the cell of the anode lead, and a cell is formed on the outer part of the cell.
- a protective layer can be formed on both sites.
- both the cathode lead and the anode lead are formed at the outer portion of each cell only.
- the cathode lead may be made of copper, and the protective layer may be made of nickel.
- the electrical conductivity of nickel is only 14.9% of copper, which greatly increases the resistance of the cell, the necessity of selectively forming a protective layer is greater according to the present invention.
- the anode lead is made of aluminum, and the protective layer is also the case of nickel.
- the thickness of the protective layer is not particularly limited. However, preferably, while effectively protecting the electrode lead, it may be formed in the range of 0.1nm to 500um to prevent the electrode lead from becoming too thick.
- the selective protective layer according to the invention can be formed on one side or both sides of the electrode lead.
- the protective layer may be formed through coating or plating, and specifically, may be formed using an electroplating method.
- the present invention relates to a secondary battery comprising an electrode assembly, an outer material for accommodating the electrode assembly, and the electrode lead electrically connected to the electrode assembly.
- the secondary battery may be a lithium secondary battery, and specifically, may be a pouch-type lithium secondary battery including an adhesive film (ie, an “insulation film”) for insulating the electrode lead and the exterior material.
- an adhesive film ie, an “insulation film”
- the aluminum foil and copper foil were cut
- the anode plates and the cathode plates are sequentially stacked using a separator, and then the electrode assembly is welded in a state in which the anode lead and the cathode lead are positioned on the lower side of the positive electrode tab and the lower side of the negative electrode tab, respectively. Completed.
- an inner resin layer polyethylene film
- a metal layer Al
- an outer resin layer nylon film
- the anode and cathode lead portions which contact the sealing portion of the packaging material are surrounded by an insulating film, and then the outer circumferential surface of the packaging material is thermocompression-sealed to seal the pouch-type lithium secondary battery.
- the nickel plating is formed only in the outer portion of the cell partitioned by the insulating film of the cathode lead, but not formed in the inner portion of the cell including the welding portion.
- the resistance of the cell was measured to be low since the low conductivity of nickel is not included in the welding surface of the negative electrode lead and the negative electrode tab.
- the low conductivity of nickel was included in the welding surfaces of the negative electrode lead and the negative electrode tab, thereby reducing the electrical conductivity and the contact area, resulting in a higher resistance of the cell.
- the present invention by selectively forming a protective layer for corrosion prevention only on the electrode lead portion located outside the cell, it is possible to prevent the degradation of the cell by preventing the corrosion of the electrode lead from the external environment and at the same time reducing the resistance of the cell. It was confirmed.
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Connection Of Batteries Or Terminals (AREA)
- Sealing Battery Cases Or Jackets (AREA)
- Secondary Cells (AREA)
Abstract
Description
| 저항(mΩ) | |
| 실시예 | 4.0 |
| 비교예 | 4.3 |
Claims (12)
- 이차전지의 전극리드에 있어서,상기 전극리드는 셀 외부에 위치하는 전극리드 부위에만 선택적으로 부식방지용 보호층이 형성되어 있는 것을 특징으로 하는 이차전지의 전극리드.
- 제1항에 있어서,상기 전극리드는 음극리드, 양극리드 중 적어도 1 이상인 것을 특징으로 하는 이차전지의 전극리드.
- 제2항에 있어서,상기 음극리드는 구리 재질이고, 상기 보호층은 니켈 재질인 것을 특징으로 하는 이차전지의 전극리드.
- 제2항에 있어서,상기 양극리드는 알루미늄 재질이고, 상기 보호층은 니켈 재질인 것을 특징으로 하는 이차전지의 전극리드.
- 제1항에 있어서,상기 보호층은 상기 전극리드의 일면 또는 양면에 형성되어 있는 것을 특징으로 하는 이차전지의 전극리드.
- 제1항에 있어서,상기 보호층은 코팅 또는 도금에 의해 형성된 것을 특징으로 하는 이차전지의 전극리드.
- 제6항에 있어서,상기 도금은 전기도금인 것을 특징으로 하는 이차전지의 전극리드.
- 제1항에 있어서,상기 보호층의 두께는 0.1nm 내지 500㎛인 것을 특징으로 하는 이차전지의 전극리드.
- 이차전지의 전극리드에 있어서,상기 전극리드와 전극탭의 용접 부위에 부식방지용 보호층이 형성되어 있지 않은 것을 특징으로 하는 이차전지의 전극리드.
- 전극조립체, 상기 전극조립체를 수납하는 외장재, 및 상기 전극조립체와 전기적으로 연결된 제1항 내지 제9항 중 어느 한 항에 따른 전극리드를 포함하는 것을 특징으로 하는 이차전지.
- 제10항에 있어서,상기 이차전지는 리튬이차전지인 것을 특징으로 하는 이차전지.
- 제11항에 있어서,상기 이차전지는 상기 전극리드와 상기 외장재의 절연을 위한 접착성 필름을 포함하는 파우치형 리튬이차전지인 것을 특징으로 하는 이차전지.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013530096A JP5896244B2 (ja) | 2010-09-27 | 2011-09-27 | 腐食防止用保護層を含む電極リードを含む二次電池 |
| CN201180046547.XA CN103125033B (zh) | 2010-09-27 | 2011-09-27 | 包括防腐蚀保护层的电极引线和包括该电极引线的可再充电电池 |
| EP11829541.9A EP2602845B1 (en) | 2010-09-27 | 2011-09-27 | Secondary battery comprising electrode leads coated with a corrosion-preventing protective layer |
| US13/352,481 US9142825B2 (en) | 2010-09-27 | 2012-01-18 | Electrode lead comprising protection layer for anti-corrosion and secondary battery comprising the same |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020100093076A KR20120031606A (ko) | 2010-09-27 | 2010-09-27 | 부식방지용 보호층이 선택적으로 형성된 전극리드, 및 이를 포함하는 이차전지 |
| KR10-2010-0093076 | 2010-09-27 |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US13/352,481 Continuation US9142825B2 (en) | 2010-09-27 | 2012-01-18 | Electrode lead comprising protection layer for anti-corrosion and secondary battery comprising the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| WO2012044035A2 true WO2012044035A2 (ko) | 2012-04-05 |
| WO2012044035A3 WO2012044035A3 (ko) | 2012-06-21 |
Family
ID=45893633
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/KR2011/007090 Ceased WO2012044035A2 (ko) | 2010-09-27 | 2011-09-27 | 부식방지용 보호층을 포함하는 전극리드, 및 이를 포함하는 이차전지 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US9142825B2 (ko) |
| EP (1) | EP2602845B1 (ko) |
| JP (1) | JP5896244B2 (ko) |
| KR (1) | KR20120031606A (ko) |
| CN (1) | CN103125033B (ko) |
| WO (1) | WO2012044035A2 (ko) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101422109B1 (ko) * | 2012-12-20 | 2014-07-22 | 포스코에너지 주식회사 | 나트륨 유황 전지의 전지 모듈 |
| KR101743696B1 (ko) | 2013-11-29 | 2017-06-05 | 주식회사 엘지화학 | 배터리 모듈 및 이를 포함하는 배터리 팩 |
| FR3016478B1 (fr) * | 2014-01-16 | 2017-09-08 | Commissariat Energie Atomique | Accumulateur electrochimique avec boitier et borne de sortie en alliage d'aluminium, pack-batterie et procede de realisation associes |
| JP6748937B2 (ja) * | 2014-11-04 | 2020-09-02 | 株式会社Gsユアサ | 蓄電装置及び蓄電装置の製造方法 |
| KR101784743B1 (ko) * | 2015-01-23 | 2017-11-06 | 삼성에스디아이 주식회사 | 이차 전지 |
| CN108123090B (zh) * | 2016-11-30 | 2021-02-19 | 宝山钢铁股份有限公司 | 一种带有防护的外极耳及其电池 |
| US10862096B2 (en) * | 2016-12-27 | 2020-12-08 | Hitachi Metals, Ltd. | Lead material for negative electrode and method for manufacturing lead material for negative electrode |
| CN106992280A (zh) * | 2017-04-12 | 2017-07-28 | 北京新能源汽车股份有限公司 | 一种电动汽车的电池系统及电动汽车 |
| US20230155134A1 (en) * | 2020-03-19 | 2023-05-18 | Lg Energy Solution, Ltd. | Positive electrode current collector having conductive anti-corrosion layer formed on the tab, positive electrode comprising the same, and lithium secondary battery |
| TWI839920B (zh) * | 2022-10-28 | 2024-04-21 | 財團法人工業技術研究院 | 電池極耳與導電柄焊接的方法 |
| WO2025046646A1 (ja) * | 2023-08-25 | 2025-03-06 | 住友電気工業株式会社 | リード線および蓄電デバイス |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| GB2076427B (en) * | 1980-05-23 | 1983-05-18 | Duracell Int | The in situ metal plating of the cathode terminal surface of an electrochemical cell |
| KR100405873B1 (ko) * | 1995-07-28 | 2004-03-30 | 산요덴키가부시키가이샤 | 레이저밀봉전지 |
| JP3494558B2 (ja) * | 1997-08-26 | 2004-02-09 | 東芝電池株式会社 | 電 池 |
| JP2001167752A (ja) * | 1999-12-10 | 2001-06-22 | Japan Storage Battery Co Ltd | 非水電解質二次電池 |
| EP1258044A1 (en) * | 2000-02-10 | 2002-11-20 | NTK Powerdex, Inc. | Li-ION AND/OR Li-ION POLYMER BATTERY WITH SHIELDED LEADS |
| JP3591523B2 (ja) * | 2002-04-11 | 2004-11-24 | 日産自動車株式会社 | 組電池 |
| KR100911004B1 (ko) * | 2002-07-09 | 2009-08-05 | 삼성에스디아이 주식회사 | 전지부와 이를 채용한 리튬이차전지 |
| AU2003258405A1 (en) * | 2002-08-13 | 2004-02-25 | Hydrogenics Corporation | Corrosion resistant terminal plate and method for producing same |
| KR100601548B1 (ko) * | 2004-05-25 | 2006-07-19 | 삼성에스디아이 주식회사 | 이차전지 |
| CN102820435A (zh) * | 2005-11-08 | 2012-12-12 | 株式会社Lg化学 | 具有高安全性的二次电池 |
| SG173372A1 (en) * | 2006-07-18 | 2011-08-29 | Cymbet Corp | Method and apparatus for solid-state microbattery photolithographic manufacture, singulation and passivation |
| KR100888284B1 (ko) | 2006-07-24 | 2009-03-10 | 주식회사 엘지화학 | 탭-리드 결합부의 전극간 저항차를 최소화한 전극조립체 및이를 포함하고 있는 전기화학 셀 |
| KR100848788B1 (ko) * | 2006-07-24 | 2008-07-30 | 주식회사 엘지화학 | 결합부에서 전극 탭들의 크기가 동일한 전극조립체 및 이를포함하고 있는 전기화학 셀 |
| US7892675B1 (en) * | 2006-12-06 | 2011-02-22 | Quallion Llc | Electrochemical device having ultrasonic weld attaching weld material to electrode tab |
| JP5292914B2 (ja) * | 2007-09-28 | 2013-09-18 | 大日本印刷株式会社 | 電池タブ及びそれを用いたリチウムイオン電池 |
| KR101025277B1 (ko) * | 2007-10-30 | 2011-03-29 | 삼성에스디아이 주식회사 | 전극 조립체 및 이를 구비하는 이차 전지 |
| KR100995886B1 (ko) * | 2008-07-16 | 2010-11-22 | 주식회사 엘티케이 | 니켈 도금된 리튬 이차 전지용 양극단자 및 그 제조 방법 |
| KR20100016719A (ko) * | 2008-08-05 | 2010-02-16 | 주식회사 엘지화학 | 전기절연성과 수분침투성이 개선된 파우치형 이차전지 |
| JP5684462B2 (ja) * | 2008-12-22 | 2015-03-11 | 昭和電工パッケージング株式会社 | 正極タブリード及び電池 |
-
2010
- 2010-09-27 KR KR1020100093076A patent/KR20120031606A/ko not_active Ceased
-
2011
- 2011-09-27 WO PCT/KR2011/007090 patent/WO2012044035A2/ko not_active Ceased
- 2011-09-27 EP EP11829541.9A patent/EP2602845B1/en active Active
- 2011-09-27 CN CN201180046547.XA patent/CN103125033B/zh active Active
- 2011-09-27 JP JP2013530096A patent/JP5896244B2/ja active Active
-
2012
- 2012-01-18 US US13/352,481 patent/US9142825B2/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| US20120115023A1 (en) | 2012-05-10 |
| EP2602845A4 (en) | 2016-03-23 |
| KR20120031606A (ko) | 2012-04-04 |
| CN103125033A (zh) | 2013-05-29 |
| WO2012044035A3 (ko) | 2012-06-21 |
| JP5896244B2 (ja) | 2016-03-30 |
| JP2013541159A (ja) | 2013-11-07 |
| EP2602845A2 (en) | 2013-06-12 |
| EP2602845B1 (en) | 2017-11-08 |
| CN103125033B (zh) | 2016-04-27 |
| US9142825B2 (en) | 2015-09-22 |
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