JP2018537816A - 針状導体による短絡を防止するインシュレータアセンブリを含む電池セル - Google Patents
針状導体による短絡を防止するインシュレータアセンブリを含む電池セル Download PDFInfo
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- JP2018537816A JP2018537816A JP2018524789A JP2018524789A JP2018537816A JP 2018537816 A JP2018537816 A JP 2018537816A JP 2018524789 A JP2018524789 A JP 2018524789A JP 2018524789 A JP2018524789 A JP 2018524789A JP 2018537816 A JP2018537816 A JP 2018537816A
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- 229910000664 lithium aluminum titanium phosphates (LATP) Inorganic materials 0.000 description 1
- 229910000625 lithium cobalt oxide Inorganic materials 0.000 description 1
- HSZCZNFXUDYRKD-UHFFFAOYSA-M lithium iodide Inorganic materials [Li+].[I-] HSZCZNFXUDYRKD-UHFFFAOYSA-M 0.000 description 1
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- QEXMICRJPVUPSN-UHFFFAOYSA-N lithium manganese(2+) oxygen(2-) Chemical class [O-2].[Mn+2].[Li+] QEXMICRJPVUPSN-UHFFFAOYSA-N 0.000 description 1
- 229910001386 lithium phosphate Inorganic materials 0.000 description 1
- BFZPBUKRYWOWDV-UHFFFAOYSA-N lithium;oxido(oxo)cobalt Chemical compound [Li+].[O-][Co]=O BFZPBUKRYWOWDV-UHFFFAOYSA-N 0.000 description 1
- VROAXDSNYPAOBJ-UHFFFAOYSA-N lithium;oxido(oxo)nickel Chemical compound [Li+].[O-][Ni]=O VROAXDSNYPAOBJ-UHFFFAOYSA-N 0.000 description 1
- URIIGZKXFBNRAU-UHFFFAOYSA-N lithium;oxonickel Chemical compound [Li].[Ni]=O URIIGZKXFBNRAU-UHFFFAOYSA-N 0.000 description 1
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- LYGJENNIWJXYER-UHFFFAOYSA-N nitromethane Chemical compound C[N+]([O-])=O LYGJENNIWJXYER-UHFFFAOYSA-N 0.000 description 1
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- 230000000737 periodic effect Effects 0.000 description 1
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- 239000010452 phosphate Substances 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-N phosphoric acid Substances OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
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- BDZBKCUKTQZUTL-UHFFFAOYSA-N triethyl phosphite Chemical compound CCOP(OCC)OCC BDZBKCUKTQZUTL-UHFFFAOYSA-N 0.000 description 1
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- TWQULNDIKKJZPH-UHFFFAOYSA-K trilithium;phosphate Chemical compound [Li+].[Li+].[Li+].[O-]P([O-])([O-])=O TWQULNDIKKJZPH-UHFFFAOYSA-K 0.000 description 1
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Images
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- 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
- H01M4/76—Containers for holding the active material, e.g. tubes, capsules
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- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-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
- 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
- H01M4/76—Containers for holding the active material, e.g. tubes, capsules
- H01M4/765—Tubular type or pencil type electrodes; tubular or multitubular sheaths or covers of insulating material for said tubular-type electrodes
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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
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- 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
- H01M50/584—Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries
- H01M50/59—Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries characterised by the protection means
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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
- H01M10/00—Secondary cells; Manufacture thereof
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- H01M10/4235—Safety or regulating additives or arrangements in electrodes, separators or electrolyte
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Abstract
Description
そこで、以下では、針状導体の一つの例として、端部が鋭い釘だと仮定し、インシュレータアセンブリの具体的な構造と作用構造を詳細に説明する。
前記インシュレータアセンブリは、単一のインシュレーター、または二つ以上のインシュレーターが積層されている 構造で成されており,
前記インシュレーターは、絶縁性本体、及び前記絶縁性本体上に形成されている複数の欠落パターンが含まれている構造であり得る。
前記欠落パターンの平面形状は、特に限定されるものではなく、例えば、平面上に円形、楕円形、または多角形であり得る。
まず、図1を参照すると、電池セル(100)は、パウチ型のセルケース(20)の内部に陽極、陰極及びこれらの間に配置される分離膜からなる電極組立体(30)が電解液と一緒に内蔵されており、電極組立体(30)の電極のタブ(40、50)と連結された電極リード(60、70)が、セルケース(20)の外側に突出した状態で、セルケース(20)の外周端部である外周辺らが密封されている構造で成されている。
Claims (16)
- 電極組立体、電解液およびセルケースを含む電池セルであって、
電極の積層方向から電極組立体の両面の中に少なくとも一面の外側には、電気絶縁性のインシュレータアセンブリ(insulator assembly)が付加されており、
針状導体が前記インシュレータアセンブリを貫通するとき、針状導体の針状端部が導入されるインシュレータアセンブリの部位が欠落されつつ針状導体と電極組立体を貫通して、前記インシュレータアセンブリの欠落部位によって電極組立体の貫通口平面形状が決定されることを特徴とする、電池セル。 - 前記インシュレータアセンブリは、単一のインシュレーター、又はインシュレーター二つ以上が積層されている構造で構成されており、前記インシュレーターは、絶縁性本体、及び前記絶縁性本体上に形成されている複数の欠落パターンが含まれている構造であることを特徴とする、請求項1に記載の電池セル。
- 前記インシュレータアセンブリの二つ以上のインシュレーターは、それぞれのインシュレーターに形成されている欠落パターンが相互に重ね合わされていない形で積層されていることを特徴とする、請求項2に記載の電池セル。
- 針状導体が欠落パターンを貫通するとき、インシュレータアセンブリに導入される針状導体の針状部により、前記欠落パターンが絶縁性本体から欠落した状態で針状導体と一緒に電極組立体を貫通することを特徴とする、 請求項2に記載の電池セル。
- 前記欠落パターンは、電極組立体の貫通時に破損されない引張強度を持つように金属、高強度プラスチックまたはセラミックからなる欠落部および前記欠落部の中心部と隣接する部位では、欠落部の平面に比べ50%〜80%の平面サイズに穿孔されている針状導体誘導部が含まれて;針状導体誘導部が針状導体の針状端部に固定されると、欠落部の絶縁性本体から欠落した状態で針状導体に沿って貫通方向に進行し、電極組立体を貫通することを特徴とする、請求項4に記載の電池セル。
- 前記欠落パターンが電極組立体に形成される貫通口平面形状と面積を決定するように、欠落パターンの総平面が7mm2〜200mm2であることを特徴とする、請求項5に記載の電池セル。
- 前記欠落パターンの総平面は20mm2乃至95mm2であることを特徴とする、請求項5に記載の電池セル。
- 前記引張強度は、1Kg/cm乃至10Kg/cmであることを特徴とする、請求項5に記載の電池セル。
- 前記高強度プラスチックはポリアミド、ポリアセチル、ポリカーボネート、ポリエステル樹脂、ポリフェニレンオキサイド、ポリオレフィン、ポリイミド、シリコン、テフロン、アラミドファイバー(Aramid fiber)、グラスファイバー(Glass fiber)、UHMWPEファイバー(Ultra-highmolecular-weight polyethylene fiber)及びPBO繊維(Polybenzoxazole fiber)から選択される一つからなることを特徴とする、請求項5に記載の電池セル。
- 前記金属は、アルミニウム、銅、SUS、硬膜ニウム、パラジウム、白金、ニッケル及びモリブデンからなる群から選択される1種、または2種以上の合金であることを特徴とする、 請求項5に記載の電池セル。
- 前記金属の表面は、有機系絶縁コーティング、無機系絶縁コーティングまたは陽極酸化(anodizing)処理されていることを特徴とする、請求項10に記載の電池セル。
- 前記針状導体誘導には、針状導体の針状端部に沿って延伸することができる、絶縁膜が付加されていることを特徴とする、請求項5に記載の電池セル。
- 前記絶縁性本体には欠落部の平面形状に対応する開口が穿孔されており、前記欠落部開口に挿入された状態では、それらの界面に接着剤が付加されている形で、絶縁性本体と欠落パターンが結合していることを特徴とする、請求項5に記載の電池セル。
- 前記絶縁性本体には欠落部の平面形状に対応する開口が穿孔されており、欠落部開口に挿入された状態で、それらの界面が相互に融着されている形で、絶縁性本体と欠落パターンが結合されていることを特徴とする、請求項5に記載の電池セル。
- ノッチ又は切取り線を境に絶縁性本体と欠落部が区画されている形で絶縁性本体と欠落パターンが一体をなしていることを特徴とする、請求項5に記載の電池セル。
- 前記の欠落パターンは、平面上に円形、楕円形、または多角形であることを特徴とする、請求項5に記載の電池セル。
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KR101684391B1 (ko) * | 2014-01-10 | 2016-12-08 | 주식회사 엘지화학 | 안전 분리막을 가진 전극조립체 및 이를 포함하는 이차전지 |
KR101843868B1 (ko) * | 2014-02-05 | 2018-03-30 | 주식회사 엘지화학 | 최외각에 절연성 액상물질을 내장한 안전부재가 구비되어 있는 전지모듈 및 이를 포함하는 전지팩 |
KR101686600B1 (ko) * | 2014-07-04 | 2016-12-14 | 주식회사 엘지화학 | 전해액 함침용 홀을 포함하고 있는 전지셀 |
WO2016111542A1 (ko) | 2015-01-06 | 2016-07-14 | 주식회사 엘지화학 | 안전성이 향상된 전극 조립체 및 이를 포함하는 이차전지 |
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2016
- 2016-08-17 KR KR1020160104552A patent/KR102051554B1/ko active IP Right Grant
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2017
- 2017-08-11 WO PCT/KR2017/008727 patent/WO2018034463A1/ko active Application Filing
- 2017-08-11 CN CN201780004249.1A patent/CN108292786B/zh active Active
- 2017-08-11 JP JP2018524789A patent/JP6666442B2/ja active Active
- 2017-08-11 US US15/772,638 patent/US10903529B2/en active Active
- 2017-08-11 PL PL17841646T patent/PL3367492T3/pl unknown
- 2017-08-11 EP EP17841646.7A patent/EP3367492B1/en active Active
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CN108292786A (zh) | 2018-07-17 |
KR20180020061A (ko) | 2018-02-27 |
US10903529B2 (en) | 2021-01-26 |
EP3367492A1 (en) | 2018-08-29 |
EP3367492A4 (en) | 2018-08-29 |
US20200194847A1 (en) | 2020-06-18 |
CN108292786B (zh) | 2021-06-22 |
KR102051554B1 (ko) | 2019-12-03 |
JP6666442B2 (ja) | 2020-03-13 |
WO2018034463A1 (ko) | 2018-02-22 |
PL3367492T3 (pl) | 2019-11-29 |
EP3367492B1 (en) | 2019-07-03 |
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