KR100966604B1 - 전극 조립체 및 이를 구비하는 이차 전지 - Google Patents
전극 조립체 및 이를 구비하는 이차 전지 Download PDFInfo
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- KR100966604B1 KR100966604B1 KR1020070117738A KR20070117738A KR100966604B1 KR 100966604 B1 KR100966604 B1 KR 100966604B1 KR 1020070117738 A KR1020070117738 A KR 1020070117738A KR 20070117738 A KR20070117738 A KR 20070117738A KR 100966604 B1 KR100966604 B1 KR 100966604B1
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- negative electrode
- positive electrode
- active material
- material layer
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- 239000007773 negative electrode material Substances 0.000 claims abstract description 37
- 239000007774 positive electrode material Substances 0.000 claims abstract description 37
- 239000011248 coating agent Substances 0.000 claims abstract description 34
- 238000000576 coating method Methods 0.000 claims abstract description 34
- 235000015110 jellies Nutrition 0.000 claims abstract description 11
- 239000008274 jelly Substances 0.000 claims abstract description 11
- 238000000034 method Methods 0.000 claims description 21
- 239000000463 material Substances 0.000 claims description 17
- 239000005022 packaging material Substances 0.000 claims 1
- 239000011149 active material Substances 0.000 abstract description 14
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 239000010410 layer Substances 0.000 description 66
- 239000002002 slurry Substances 0.000 description 30
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 14
- -1 and the like Inorganic materials 0.000 description 12
- 239000003792 electrolyte Substances 0.000 description 7
- 229910052759 nickel Inorganic materials 0.000 description 7
- 239000012790 adhesive layer Substances 0.000 description 6
- 229910052782 aluminium Inorganic materials 0.000 description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 6
- 239000007772 electrode material Substances 0.000 description 6
- 230000001681 protective effect Effects 0.000 description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 5
- 229910052744 lithium Inorganic materials 0.000 description 5
- 238000007789 sealing Methods 0.000 description 5
- 238000004804 winding Methods 0.000 description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 4
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 4
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 4
- 229910045601 alloy Inorganic materials 0.000 description 4
- 239000000956 alloy Substances 0.000 description 4
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- 229910001220 stainless steel Inorganic materials 0.000 description 4
- 239000010936 titanium Substances 0.000 description 4
- 229910052719 titanium Inorganic materials 0.000 description 4
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 3
- 239000005977 Ethylene Substances 0.000 description 3
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- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 2
- 239000002033 PVDF binder Substances 0.000 description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 2
- 239000006183 anode active material Substances 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
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- 239000002184 metal Substances 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 229920003207 poly(ethylene-2,6-naphthalate) Polymers 0.000 description 2
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 2
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- 229910052709 silver Inorganic materials 0.000 description 2
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- 229920003002 synthetic resin Polymers 0.000 description 2
- 229920005992 thermoplastic resin Polymers 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 229910000733 Li alloy Inorganic materials 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 229910003481 amorphous carbon Inorganic materials 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- OJIJEKBXJYRIBZ-UHFFFAOYSA-N cadmium nickel Chemical compound [Ni].[Cd] OJIJEKBXJYRIBZ-UHFFFAOYSA-N 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 239000003575 carbonaceous material Substances 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000008151 electrolyte solution Substances 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 238000002372 labelling Methods 0.000 description 1
- 239000001989 lithium alloy Substances 0.000 description 1
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
- 229920003048 styrene butadiene rubber Polymers 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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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
- H01M10/0587—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
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/04—Construction or manufacture in general
- H01M10/0431—Cells with wound or folded electrodes
-
- 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
-
- 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
- H01M50/102—Primary casings; Jackets or wrappings characterised by their shape or physical 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
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/102—Primary casings; Jackets or wrappings characterised by their shape or physical structure
- H01M50/105—Pouches or flexible bags
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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
- H01M50/116—Primary casings; Jackets or wrappings characterised by the material
- H01M50/117—Inorganic material
- H01M50/119—Metals
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- H—ELECTRICITY
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- 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
- H01M50/116—Primary casings; Jackets or wrappings characterised by the material
- H01M50/124—Primary casings; Jackets or wrappings characterised by the material having a layered structure
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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
- H01M50/534—Electrode connections inside a battery casing characterised by the material of the leads or tabs
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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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- 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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- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
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- H01M50/103—Primary casings; Jackets or wrappings characterised by their shape or physical structure prismatic or rectangular
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- Secondary Cells (AREA)
- Connection Of Batteries Or Terminals (AREA)
- Battery Electrode And Active Subsutance (AREA)
Abstract
Description
|
양극 활물질층(μm) | 음극 활물질층(μm) | ||||
시작부 | 균일 영역 | 종단부 | 시작부 | 균일 영역 | 종단부 | |
1 | 72 | 70 | 69 | 73 | 72 | 64 |
2 | 73 | 70 | 69 | 73 | 72 | 65 |
3 | 72 | 70 | 69 | 72 | 71 | 65 |
4 | 72 | 70 | 68 | 73 | 72 | 65 |
5 | 73 | 71 | 68 | 72 | 71 | 64 |
Claims (20)
- 양극 집전체, 상기 양극 집전체에 형성되는 양극 활물질층 및 양극 탭이 접합되는 양극 무지부를 구비하는 양극판;음극 집전체, 상기 음극 집전체에 형성되는 음극 활물질층 및 음극 탭이 접합되는 음극 무지부를 구비하는 음극판; 및세퍼레이터를 포함하며,상기 양극 활물질층 또는 음극 활물질층은 도포 시작부, 종단부 및 상기 도포 시작부와 종단부 사이의 균일 영역을 포함하고,상기 종단부가 권취된 젤리 롤의 중심부에 위치하는 것을 특징으로 하는 전극 조립체.
- 제 1 항에 있어서,상기 도포 시작부는 상기 균일 영역보다 두께가 두꺼운 것을 특징으로 하는 전극 조립체.
- 제 1 항에 있어서,상기 종단부는 상기 균일 영역보다 두께가 얇은 것을 특징으로 하는 전극 조 립체.
- 제 1 항에 있어서,상기 도포 시작부는 상기 권취된 젤리 롤의 외측에 형성되는 것을 특징으로 하는 전극 조립체.
- 제 1 항에 있어서,상기 양극 활물질층 또는 음극 활물질층은 상기 양극 집전체 또는 음극 집전체의 대면하는 양면에 형성되는 것을 특징으로 하는 전극 조립체.
- 제 5 항에 있어서,상기 양극 활물질층 또는 음극 활물질층의 도포 시작부와 종단부는 같은 방향으로 위치하는 것을 특징으로 하는 전극 조립체.
- 삭제
- 제 1 항에 있어서,상기 양극판 및 음극판은 상기 도포 시작부 또는 상기 종단부를 커버하는 절연 부재를 포함하는 것을 특징으로 하는 전극 조립체.
- 외장재;상기 외장재에 수용되며, 양극 집전체, 상기 양극 집전체에 형성되는 양극 활물질층 및 양극 탭이 접합되는 양극 무지부를 구비하는 양극판, 음극 집전체, 상기 음극 집전체에 형성되는 음극 활물질층 및 음극 탭이 접합되는 음극 무지부를 구비하는 음극판을 포함하며,상기 양극 활물질층 또는 상기 음극 활물질층은 도포 시작부, 종단부 및 상기 도포 시작부와 종단부 사이의 균일 영역을 포함하고,상기 종단부가 권취된 젤리 롤의 중심부에 위치하는 전극 조립체를 포함하는 것을 특징으로 하는 이차 전지.
- 제 9 항에 있어서,상기 외장재는 원통형, 각기둥형 또는 모서리에 곡면이 형성된 기둥형 중 어 느 하나로 형성되는 것을 특징으로 하는 이차 전지.
- 제 10 항에 있어서,상기 외장재는 일측에 개구부가 형성되는 것을 특징으로 하는 이차 전지.
- 제 11 항에 있어서,상기 외장재는 상기 개구부 상에 캡 조립체를 구비하는 것을 특징으로 하는 이차 전지.
- 제 9 항에 있어서,상기 외장재는 파우치형인 것을 특징으로 하는 이차 전지.
- 제 9 항에 있어서,상기 도포 시작부는 상기 균일 영역보다 두께가 두꺼운 것을 특징으로 하는 이차 전지.
- 제 9 항에 있어서,상기 종단부는 상기 균일 영역보다 두께가 얇은 것을 특징으로 하는 이차 전지.
- 제 9 항에 있어서,상기 도포 시작부는 상기 권취된 젤리 롤의 외측에 형성되는 것을 특징으로 하는 이차 전지.
- 제 9 항에 있어서,상기 양극 활물질층 또는 음극 활물질층은 상기 양극 집전체 또는 음극 집전체의 대면하는 양면에 형성되는 것을 특징으로 하는 이차 전지.
- 제 17 항에 있어서,상기 양극 활물질층 또는 음극 활물질층의 시작부와 종단부는 같은 방향으로 위치하는 것을 특징으로 하는 이차 전지.
- 삭제
- 제 9 항에 있어서,상기 양극판 및 음극판은 상기 도포 시작부 또는 상기 종단부를 커버하는 절연 부재를 포함하는 것을 특징으로 하는 이차 전지.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020070117738A KR100966604B1 (ko) | 2007-11-19 | 2007-11-19 | 전극 조립체 및 이를 구비하는 이차 전지 |
US12/175,579 US20090130548A1 (en) | 2007-11-19 | 2008-07-18 | Electrode assembly and secondary battery using the same |
CN2008101764623A CN101442139B (zh) | 2007-11-19 | 2008-11-13 | 电极组件和利用该电极组件的二次电池 |
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KR1020070117738A KR100966604B1 (ko) | 2007-11-19 | 2007-11-19 | 전극 조립체 및 이를 구비하는 이차 전지 |
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KR101165507B1 (ko) * | 2009-11-27 | 2012-07-13 | 삼성에스디아이 주식회사 | 이차전지 |
KR101453037B1 (ko) * | 2011-03-23 | 2014-10-21 | 주식회사 엘지화학 | 전극조립체 및 이의 제조방법 |
WO2013176161A1 (ja) * | 2012-05-25 | 2013-11-28 | Necエナジーデバイス株式会社 | 非水電解液電池用正極電極および非水電解液二次電池 |
KR102619895B1 (ko) * | 2016-08-01 | 2024-01-02 | 삼성에스디아이 주식회사 | 이차 전지 |
KR102624595B1 (ko) * | 2016-12-23 | 2024-01-15 | 삼성전자주식회사 | 배터리의 활물질 도포 방법 및 상기 배터리를 구비한 전자 장치 |
KR20190047593A (ko) | 2017-10-27 | 2019-05-08 | 주식회사 엘지화학 | 리튬 금속 음극 구조체의 제조방법 및 리튬 금속 음극 구조체 |
KR102657498B1 (ko) * | 2018-04-24 | 2024-04-15 | 삼성에스디아이 주식회사 | 전극 조립체, 이를 포함하는 이차전지 및 그 제조 방법 |
JP7079414B2 (ja) * | 2018-11-06 | 2022-06-02 | トヨタ自動車株式会社 | 非水電解液二次電池 |
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KR20040058921A (ko) * | 2002-12-27 | 2004-07-05 | 삼성에스디아이 주식회사 | 권취형 전극 조립체를 구비한 이차 전지 |
JP2005116214A (ja) | 2003-10-03 | 2005-04-28 | Hitachi Maxell Ltd | 非水電解質電池 |
KR20060037847A (ko) * | 2004-10-28 | 2006-05-03 | 삼성에스디아이 주식회사 | 이차 전지 |
JP2006172808A (ja) * | 2004-12-14 | 2006-06-29 | Dainippon Printing Co Ltd | 電池の製造方法 |
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KR100449757B1 (ko) * | 2001-11-23 | 2004-09-22 | 삼성에스디아이 주식회사 | 전지부와 이를 채용한 이차전지 |
JP3759908B2 (ja) * | 2002-02-19 | 2006-03-29 | 株式会社バーテックススタンダード | 無線通信機における緊急通報装置 |
JP2006147392A (ja) * | 2004-11-22 | 2006-06-08 | Matsushita Electric Ind Co Ltd | 電池 |
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KR20040058921A (ko) * | 2002-12-27 | 2004-07-05 | 삼성에스디아이 주식회사 | 권취형 전극 조립체를 구비한 이차 전지 |
JP2005116214A (ja) | 2003-10-03 | 2005-04-28 | Hitachi Maxell Ltd | 非水電解質電池 |
KR20060037847A (ko) * | 2004-10-28 | 2006-05-03 | 삼성에스디아이 주식회사 | 이차 전지 |
JP2006172808A (ja) * | 2004-12-14 | 2006-06-29 | Dainippon Printing Co Ltd | 電池の製造方法 |
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KR20090051374A (ko) | 2009-05-22 |
CN101442139B (zh) | 2012-10-03 |
CN101442139A (zh) | 2009-05-27 |
US20090130548A1 (en) | 2009-05-21 |
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