JP2008130482A - 円筒型二次電池 - Google Patents
円筒型二次電池 Download PDFInfo
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- JP2008130482A JP2008130482A JP2006316737A JP2006316737A JP2008130482A JP 2008130482 A JP2008130482 A JP 2008130482A JP 2006316737 A JP2006316737 A JP 2006316737A JP 2006316737 A JP2006316737 A JP 2006316737A JP 2008130482 A JP2008130482 A JP 2008130482A
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- 238000003776 cleavage reaction Methods 0.000 claims abstract description 166
- 230000007017 scission Effects 0.000 claims abstract description 166
- 230000002093 peripheral effect Effects 0.000 claims abstract description 28
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 abstract description 44
- 229910001416 lithium ion Inorganic materials 0.000 abstract description 44
- 238000004804 winding Methods 0.000 abstract description 23
- 229910052744 lithium Inorganic materials 0.000 description 9
- 230000000052 comparative effect Effects 0.000 description 8
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 6
- 238000005304 joining Methods 0.000 description 6
- 229910052751 metal Inorganic materials 0.000 description 6
- 238000009783 overcharge test Methods 0.000 description 6
- 229910000838 Al alloy Inorganic materials 0.000 description 5
- 239000008151 electrolyte solution Substances 0.000 description 5
- 239000002904 solvent Substances 0.000 description 5
- 238000003466 welding Methods 0.000 description 5
- 229910052782 aluminium Inorganic materials 0.000 description 4
- 230000009172 bursting Effects 0.000 description 4
- 229910052742 iron Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 238000009782 nail-penetration test Methods 0.000 description 4
- 229910052759 nickel Inorganic materials 0.000 description 4
- 239000011255 nonaqueous electrolyte Substances 0.000 description 4
- -1 polyethylene Polymers 0.000 description 4
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 description 3
- 239000012141 concentrate Substances 0.000 description 3
- 238000011156 evaluation Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000003960 organic solvent Substances 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- 229910015643 LiMn 2 O 4 Inorganic materials 0.000 description 2
- 239000002033 PVDF binder Substances 0.000 description 2
- KLARSDUHONHPRF-UHFFFAOYSA-N [Li].[Mn] Chemical compound [Li].[Mn] KLARSDUHONHPRF-UHFFFAOYSA-N 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910003481 amorphous carbon Inorganic materials 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 229910052804 chromium Inorganic materials 0.000 description 2
- 210000000078 claw Anatomy 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000002788 crimping Methods 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- QHGJSLXSVXVKHZ-UHFFFAOYSA-N dilithium;dioxido(dioxo)manganese Chemical compound [Li+].[Li+].[O-][Mn]([O-])(=O)=O QHGJSLXSVXVKHZ-UHFFFAOYSA-N 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 239000011888 foil Substances 0.000 description 2
- 229910003002 lithium salt Inorganic materials 0.000 description 2
- 159000000002 lithium salts Chemical class 0.000 description 2
- 229910052749 magnesium Inorganic materials 0.000 description 2
- 239000011572 manganese Substances 0.000 description 2
- 239000007773 negative electrode material Substances 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 229910052720 vanadium Inorganic materials 0.000 description 2
- 229910052725 zinc Inorganic materials 0.000 description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- KMTRUDSVKNLOMY-UHFFFAOYSA-N Ethylene carbonate Chemical compound O=C1OCCO1 KMTRUDSVKNLOMY-UHFFFAOYSA-N 0.000 description 1
- 229910015645 LiMn Inorganic materials 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000005856 abnormality Effects 0.000 description 1
- 239000011149 active material Substances 0.000 description 1
- 239000011889 copper foil Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- IEJIGPNLZYLLBP-UHFFFAOYSA-N dimethyl carbonate Chemical compound COC(=O)OC IEJIGPNLZYLLBP-UHFFFAOYSA-N 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 235000012489 doughnuts Nutrition 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 150000002596 lactones Chemical class 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 229910001496 lithium tetrafluoroborate Inorganic materials 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000012982 microporous membrane Substances 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 239000007774 positive electrode material Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- HXJUTPCZVOIRIF-UHFFFAOYSA-N sulfolane Chemical compound O=S1(=O)CCCC1 HXJUTPCZVOIRIF-UHFFFAOYSA-N 0.000 description 1
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Classifications
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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
- H01M50/30—Arrangements for facilitating escape of gases
- H01M50/342—Non-re-sealable arrangements
- H01M50/3425—Non-re-sealable arrangements in the form of rupturable membranes or weakened parts, e.g. pierced with the aid of a sharp member
-
- 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
- H01M50/147—Lids or covers
- H01M50/166—Lids or covers characterised by the methods of assembling casings with lids
- H01M50/171—Lids or covers characterised by the methods of assembling casings with lids using adhesives or sealing agents
-
- 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
- H01M50/147—Lids or covers
- H01M50/166—Lids or covers characterised by the methods of assembling casings with lids
- H01M50/167—Lids or covers characterised by the methods of assembling casings with lids by crimping
-
- 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
- H01M50/574—Devices or arrangements for the interruption of current
- H01M50/578—Devices or arrangements for the interruption of current in response to pressure
-
- 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
- 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
- H01M50/107—Primary casings; Jackets or wrappings characterised by their shape or physical structure having curved cross-section, e.g. round or elliptic
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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
-
- 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
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Gas Exhaust Devices For Batteries (AREA)
- Connection Of Batteries Or Terminals (AREA)
Abstract
【解決手段】リチウムイオン二次電池は、容量14Ahであり、電極捲回群を収容した電池缶に上蓋が固定されている。上蓋は、開裂弁が形成されたダイヤフラム2と、周縁部がダイヤフラム2の周縁部に固定された上蓋キャップとを有している。開裂弁は、ダイヤフラム2の上蓋キャップ側の表面に断面V字状の開裂溝8が形成されており、開裂溝8の位置に対応するダイヤフラム2の電極捲回群側の表面に断面U字状の開裂溝18が形成されている。内圧上昇によりダイヤフラム2が上蓋キャップ側に反転し電流が遮断される。急激な変形を伴う外力が作用したときにダイヤフラム2に掛かる力が開裂溝18に集中しやすくなる。
【選択図】図3
Description
図1に示すように、本実施形態の円筒型リチウムイオン二次電池30は、中空円筒状の軸芯の周りに、正極板及び負極板を、両極板が直接接触しないようにリチウムイオンの通過を許容するポリエチレン製微多孔膜からなるセパレータを介して捲回した電極捲回群11を備えている。
次に、本実施形態のリチウムイオン二次電池30の電池異常時の作用等について説明する。
表1に示すように、実施例1では、開裂溝8aの深さaを0.10mm、開裂溝18の深さbを0.30mm、開裂溝8bの端部の深さcを0.30mmとしたダイヤフラム2を用いて上蓋20を作製し、リチウムイオン二次電池30を作製した。
表1に示すように、実施例2では、開裂溝8aの深さaを0.15mm、開裂溝18の深さbを0.25mm、開裂溝8bの端部の深さcを0.25mmとしたダイヤフラム2を用いて上蓋20を作製し、リチウムイオン二次電池30を作製した。
表1に示すように、実施例3では、開裂溝8aの深さaを0.20mm、開裂溝18の深さbを0.10mm、開裂溝8bの端部の深さcを0.10mmとしたダイヤフラム2を用いて上蓋20を作製し、リチウムイオン二次電池30を作製した。
表1に示すように、実施例4では、開裂溝8aの深さaを0.25mm、開裂溝18の深さbを0.10mm、開裂溝8bの端部の深さcを0.20mmとしたダイヤフラム2を用いて上蓋20を作製し、リチウムイオン二次電池30を作製した。
表1に示すように、実施例5では、開裂溝8aの深さaを0.30mm、開裂溝18の深さbを0.10mm、開裂溝8bの端部の深さcを0.25mmとしたダイヤフラム2を用いて上蓋20を作製し、リチウムイオン二次電池30を作製した。
表1に示すように、実施例6では、開裂溝8aの深さaを0.35mm、開裂溝18の深さbを0.05mm、開裂溝8bの端部の深さcを0.30mmとしたダイヤフラム2を用いて上蓋20を作製し、リチウムイオン二次電池30を作製した。
表1に示すように、比較例1では、開裂溝18を形成せず(b=0)、開裂溝28aの深さaを0.25mm、開裂溝28bの端部の深さcを0.25mmとしたダイヤフラム22を用いて上蓋40を作製し、リチウムイオン二次電池を作製した。従って、比較例1は、開裂溝28bの深さがほぼ一様に形成された従来のリチウムイオン二次電池である(図5参照)。
各実施例及び比較例のリチウムイオン二次電池を2セル使用し、電池接続用ブスバを用いて2並列に抵抗溶接で接続し2パラセルユニットとした。得られた2パラセルユニットについて、過充電試験、釘刺し試験、圧壊試験を行い電池挙動を評価した。過充電試験では、2パラセルユニットに対して56A(1セルあたり2C)、28A(1セルあたり1C)の直流電流でそれぞれ過充電となるまで充電した。釘刺し試験では、電池をSOC(充電状態)100%に調整した後、半径5.5mmの釘を1.6m/minの速度で電極捲回群11の捲回軸に対して垂直方向から電池長手方向の中心へ長手方向に対して垂直な方向で降ろし、電池に釘を刺した。圧壊試験では、電池をSOC100%に調整した後、半径17.5mmの圧壊治具を1.6m/minの速度で電極捲回群11の捲回軸に対して垂直方向から電池長手方向の中心へ長手方向に対して垂直な方向で降ろし、電池に外圧をかけた。各試験における電池挙動は、◎;試験電池の100%について破裂発火が認められない、○;試験電池の81〜99%について破裂発火が認められない、△;試験電池の61〜80%について破裂発火が認められない、×;試験電池の0〜60%について破裂発火が認められない、の4段階でそれぞれ評価した。各試験の評価結果を下表2に示す。なお、各試験は試験回数n=20で行った。
8 開裂溝(断面V字状の溝)
11 電極捲回群
18 開裂溝(断面U字状の溝)
30 円筒型リチウムイオン二次電池(円筒型二次電池)
Claims (4)
- 内圧上昇によりダイヤフラムが反転し電流を遮断する機構を備え、前記ダイヤフラムに開裂弁が形成された円筒型二次電池において、前記開裂弁は、前記ダイヤフラムの内圧が掛かる反対側表面に断面V字状の溝が形成されており、前記断面V字状の溝が形成された位置に対応する前記ダイヤフラムの内圧が掛かる表面に断面U字状の溝が形成されていることを特徴とする二次電池。
- 前記断面U字状の溝の深さは、前記断面V字状の溝の深さより小さいことを特徴とする請求項1に記載の二次電池。
- 前記断面V字状の溝は、環状曲線と、該曲線に一端が交わり前記ダイヤフラムの外周側に他端が位置する直線との組み合わせで形成されていることを特徴とする請求項1または請求項2に記載の二次電池。
- 前記直線の溝は、前記他端における深さが前記一端における深さより小さいことを特徴とする請求項3に記載の二次電池。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006316737A JP4346637B2 (ja) | 2006-11-24 | 2006-11-24 | 円筒型二次電池 |
US11/942,286 US7771863B2 (en) | 2006-11-24 | 2007-11-19 | Cylindrical secondary battery |
EP07121241A EP1926161B1 (en) | 2006-11-24 | 2007-11-21 | Cylindrical secondary battery |
DE602007009018T DE602007009018D1 (de) | 2006-11-24 | 2007-11-21 | Zylinderförmige Sekundärbatterie |
CN200710194603XA CN101188280B (zh) | 2006-11-24 | 2007-11-23 | 圆筒式二次电池 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006316737A JP4346637B2 (ja) | 2006-11-24 | 2006-11-24 | 円筒型二次電池 |
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Publication Number | Publication Date |
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JP2008130482A true JP2008130482A (ja) | 2008-06-05 |
JP4346637B2 JP4346637B2 (ja) | 2009-10-21 |
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Application Number | Title | Priority Date | Filing Date |
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JP2006316737A Expired - Fee Related JP4346637B2 (ja) | 2006-11-24 | 2006-11-24 | 円筒型二次電池 |
Country Status (5)
Country | Link |
---|---|
US (1) | US7771863B2 (ja) |
EP (1) | EP1926161B1 (ja) |
JP (1) | JP4346637B2 (ja) |
CN (1) | CN101188280B (ja) |
DE (1) | DE602007009018D1 (ja) |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2010002089A1 (en) * | 2008-06-30 | 2010-01-07 | Lg Chem, Ltd. | Cylindrical lithium secondary battery |
WO2010131520A1 (ja) * | 2009-05-15 | 2010-11-18 | トヨタ自動車株式会社 | 密閉型二次電池 |
KR101010662B1 (ko) | 2008-12-01 | 2011-01-24 | 삼성에스디아이 주식회사 | 캡 조립체 및 이를 구비하는 이차 전지 |
US8962167B2 (en) | 2007-08-27 | 2015-02-24 | Samsung Sdi Co., Ltd. | Secondary battery having an insulator with protrusions |
US9017859B2 (en) | 2011-04-19 | 2015-04-28 | Industrial Technology Research Institute | Secondary battery structure |
US9088023B2 (en) | 2011-03-29 | 2015-07-21 | Industrial Technology Research Institute | End cover assembly of battery |
US9118071B2 (en) | 2009-03-11 | 2015-08-25 | Samsung Sdi Co., Ltd. | Rechargeable battery |
WO2020235916A1 (ko) * | 2019-05-22 | 2020-11-26 | 삼성에스디아이(주) | 이차 전지 |
KR102259159B1 (ko) * | 2020-10-12 | 2021-06-01 | (주)성우 | 이차전지용 캡플레이트 제조방법 및 이로부터 제조되는 이차전지용 캡플레이트 |
Families Citing this family (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100551885B1 (ko) * | 2003-10-20 | 2006-02-10 | 삼성에스디아이 주식회사 | 리튬 이온 2차 전지 |
KR100912789B1 (ko) * | 2006-09-11 | 2009-08-18 | 주식회사 엘지화학 | 안전성이 향상된 원통형 이차전지 |
KR101050535B1 (ko) | 2008-12-18 | 2011-07-20 | 삼성에스디아이 주식회사 | 캡 조립체 및 이를 구비하는 이차 전지 |
KR101056425B1 (ko) * | 2008-12-24 | 2011-08-11 | 에스비리모티브 주식회사 | 이차 전지 |
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- 2007-11-19 US US11/942,286 patent/US7771863B2/en not_active Expired - Fee Related
- 2007-11-21 DE DE602007009018T patent/DE602007009018D1/de active Active
- 2007-11-21 EP EP07121241A patent/EP1926161B1/en not_active Expired - Fee Related
- 2007-11-23 CN CN200710194603XA patent/CN101188280B/zh not_active Expired - Fee Related
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US8962167B2 (en) | 2007-08-27 | 2015-02-24 | Samsung Sdi Co., Ltd. | Secondary battery having an insulator with protrusions |
WO2010002089A1 (en) * | 2008-06-30 | 2010-01-07 | Lg Chem, Ltd. | Cylindrical lithium secondary battery |
US8936880B2 (en) | 2008-06-30 | 2015-01-20 | Lg Chem, Ltd. | Cylindrical lithium secondary battery with pressure activated current interruptive device |
KR101010662B1 (ko) | 2008-12-01 | 2011-01-24 | 삼성에스디아이 주식회사 | 캡 조립체 및 이를 구비하는 이차 전지 |
US8486546B2 (en) | 2008-12-01 | 2013-07-16 | Samsung Sdi Co., Ltd. | Cap assembly and secondary battery using the same with notched vent member |
US9118071B2 (en) | 2009-03-11 | 2015-08-25 | Samsung Sdi Co., Ltd. | Rechargeable battery |
JP2010267549A (ja) * | 2009-05-15 | 2010-11-25 | Toyota Motor Corp | 密閉型二次電池 |
WO2010131520A1 (ja) * | 2009-05-15 | 2010-11-18 | トヨタ自動車株式会社 | 密閉型二次電池 |
US8993139B2 (en) | 2009-05-15 | 2015-03-31 | Toyota Jidosha Kabushiki Kaisha | Sealed secondary battery |
US9088023B2 (en) | 2011-03-29 | 2015-07-21 | Industrial Technology Research Institute | End cover assembly of battery |
US9017859B2 (en) | 2011-04-19 | 2015-04-28 | Industrial Technology Research Institute | Secondary battery structure |
WO2020235916A1 (ko) * | 2019-05-22 | 2020-11-26 | 삼성에스디아이(주) | 이차 전지 |
KR102259159B1 (ko) * | 2020-10-12 | 2021-06-01 | (주)성우 | 이차전지용 캡플레이트 제조방법 및 이로부터 제조되는 이차전지용 캡플레이트 |
Also Published As
Publication number | Publication date |
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DE602007009018D1 (de) | 2010-10-21 |
US7771863B2 (en) | 2010-08-10 |
EP1926161B1 (en) | 2010-09-08 |
JP4346637B2 (ja) | 2009-10-21 |
US20080182159A1 (en) | 2008-07-31 |
CN101188280B (zh) | 2010-06-02 |
EP1926161A2 (en) | 2008-05-28 |
CN101188280A (zh) | 2008-05-28 |
EP1926161A3 (en) | 2009-04-01 |
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