JP2016505652A - 間隙充填用スウェリングテープ - Google Patents
間隙充填用スウェリングテープ Download PDFInfo
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- JP2016505652A JP2016505652A JP2015542958A JP2015542958A JP2016505652A JP 2016505652 A JP2016505652 A JP 2016505652A JP 2015542958 A JP2015542958 A JP 2015542958A JP 2015542958 A JP2015542958 A JP 2015542958A JP 2016505652 A JP2016505652 A JP 2016505652A
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- tape
- electrode assembly
- gap filling
- compound
- substrate
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Abstract
Description
実施例及び比較例で製造された電池を常温で1日間保管した後、電池を分解して電極組立体を取り出し、電極組立体に付着していたスウェリングテープの状態を評価して、下記基準に沿って立体形状の具現能を評価する。
○:スウェリングテープの立体形状が観察される。
△:スウェリングテープの立体形状が観察されない。
×:スウェリングテープの立体形状が観察されず、テープが電極組立体から剥離される。
スウェリングテープの間隙充填能は、電極組立体の流動防止特性を評価する方法で評価することができる。前記方式には、例えば、残振動評価方式と残衝撃評価方式とが存在する。残振動評価方式では、UN38.3規格の振動実験方法により行われ、評価後に電池が電源無感(cut-off)になると、流動による端子の切断であると判断する。残衝撃評価方式は、8角円柱内に電池を入れて、回転させて所定時間が経過した後に電池が電源無感になると、流動による端子の切断であると判断する。前記方式により評価したスウェリングテープの間隙充填能は、下記の基準に沿って評価する。
○:残振動評価及び残衝撃評価後、電池の電源が測定される。
△:残振動評価または残衝撃評価後、電池の電源が測定されるが、抵抗が10%以上増加する。
×:残振動評価又は残衝撃評価後、電池の電力が測定されていない。
基材フィルムのショアA硬度は、ASTM D2240によって測定し、ショアD硬度は、JIS K−7311によって測定した。
スウェリングテープの製造
イソシアネート化合物として芳香族イソシアネート化合物、ポリオール化合物としてポリエステルポリオール、および鎖延長剤としてブタンジオールをそれぞれ38:50:12の重量比で配合した混合物で製造された熱可塑性ポリウレタン(TPU)フィルムとして、ショアA硬度が95Aであり、長さ方向への変形率(膨張率)が18%であり、厚さが約40μmの無延伸フィルムを基材フィルムとして用いた。前記基材フィルムの一面にイソシアネート架橋剤で架橋されたアクリル粘着樹脂を含むアクリル系粘着層としてガラス板に対する剥離力が1,200gf/25mm程度であり、厚さが15μm程度の粘着層を形成してスウェリングテープを製造した。
陰極、陽極、およびセパレータを含むゼリーロール状の電極組立体(断面直径:17.2mm)の外周の約50%の面積を覆うようにスウェリングテープを貼り付けて、前記組立体を円筒状の缶(断面直径:17.5mm)に挿入した。次に、前記缶の内部にカーボネート系電解質を注入し、密封して電池を完成した。
スウェリングテープの製造
イソシアネート化合物として芳香族イソシアネート化合物、ポリオール化合物としてポリエステルポリオール、および鎖延長剤としてブタンジオールをそれぞれ20:75:5の重量比で配合した混合物で製造された熱可塑性ポリウレタン(TPU)フィルムとして、ショアA硬度が75Aであり、長さ方向への変形率(膨張率)が19%であり、厚さが約40μmの無延伸フィルムを基材フィルムとして用いた。前記基材フィルムの一面にイソシアネート架橋剤で架橋されたアクリル粘着樹脂を含むアクリル系粘着層としてガラス板に対する剥離力が1,230gf/25mm程度であり、厚さが15μm程度の粘着層を形成してスウェリングテープを製造した。
陰極、陽極、およびセパレータを含むゼリーロール状の電極組立体(断面直径:17.2mm)の外周の約50%の面積を覆うようにスウェリングテープを貼り付けて、前記組立体を円筒状の缶(断面直径:17.5mm)に挿入した。次に、前記缶の内部にカーボネート系電解質を注入し、密封して電池を完成した。
スウェリングテープの製造
イソシアネート化合物として芳香族イソシアネート化合物、ポリオール化合物としてポリエステルポリオール、および鎖延長剤としてブタンジオールをそれぞれ58:27:15の重量比で配合した混合物で製造された熱可塑性ポリウレタン(TPU)フィルムとして、ショアD硬度が85Dであり、長さ方向への変形率(膨張率)が10%であり、厚さが約40μmの無延伸フィルムを基材フィルムとして用いた。前記基材フィルムの一面にイソシアネート架橋剤で架橋されたアクリル粘着樹脂を含むアクリル系粘着層としてガラス板に対する剥離力が1,130gf/25mm程度であり、厚さが15μm程度の粘着層を形成してスウェリングテープを製造した。
陰極、陽極、およびセパレータを含むゼリーロール状の電極組立体(断面直径:17.2mm)の外周の約50%の面積を覆うようにスウェリングテープを貼り付けて、前記組立体を円筒状の缶(断面直径:17.5mm)に挿入した。次に、前記缶の内部にカーボネート系電解質を注入し、密封して電池を完成した。
スウェリングテープの製造
イソシアネート化合物として芳香族イソシアネート化合物、ポリオール化合物としてポリエステルポリオール、および鎖延長剤としてブタンジオールをそれぞれ55:30:15の重量比で配合した混合物で製造された熱可塑性ポリウレタン(TPU)フィルムとして、ショアD硬度が80Dであり、長さ方向への変形率(膨張率)が11%であり、厚さが約40μmの無延伸フィルムを基材フィルムとして用いた。前記基材フィルムの一面にイソシアネート架橋剤で架橋されたアクリル粘着樹脂を含むアクリル系粘着層としてガラス板に対する剥離力が1,150gf/25mm程度であり、厚さが15μm程度の粘着層を形成してスウェリングテープを製造した。
陰極、陽極、およびセパレータを含むゼリーロール状の電極組立体(断面直径:17.2mm)の外周の約50%の面積を覆うようにスウェリングテープを貼り付けて、前記組立体を円筒状の缶(断面直径:17.5mm)に挿入した。次に、前記缶の内部にカーボネート系電解質を注入し、密封して電池を完成した。
スウェリングテープの製造
イソシアネート化合物として芳香族イソシアネート化合物、ポリオール化合物としてポリエステルポリオール、および鎖延長剤としてブタンジオールをそれぞれ40:48:12の重量比で配合した混合物で製造された熱可塑性ポリウレタン(TPU)フィルムとして、ショアD硬度が45Dであり、長さ方向への変形率(膨張率)が14%であり、厚さが約40μmの無延伸フィルムを基材フィルムとして用いた。前記基材フィルムの一面にイソシアネート架橋剤で架橋されたアクリル粘着樹脂を含むアクリル系粘着層としてガラス板に対する剥離力が1,200gf/25mm程度であり、厚さが15μm程度の粘着層を形成してスウェリングテープを製造した。
陰極、陽極、およびセパレータを含むゼリーロール状の電極組立体(断面直径:17.2mm)の外周の約50%の面積を覆うようにスウェリングテープを貼り付けて、前記組立体を円筒状の缶(断面直径:17.5mm)に挿入した。次に、前記缶の内部にカーボネート系電解質を注入し、密封して電池を完成した。
スウェリングテープの製造
イソシアネート化合物として芳香族イソシアネート化合物、ポリオール化合物としてポリエステルポリオール、および鎖延長剤としてブタンジオールをそれぞれ15:80:5の重量比で配合した混合物で製造された熱可塑性ポリウレタン(TPU)フィルムとして、ショアA硬度が65Aであり、長さ方向への変形率(膨張率)が30%であり、厚さが約40μmの無延伸フィルムを基材フィルムとして用いた。前記基材フィルムの一面にイソシアネート架橋剤で架橋されたアクリル粘着樹脂を含むアクリル系粘着層としてガラス板に対する剥離力が1,300gf/25mm程度であり、厚さが15μm程度の粘着層を形成してスウェリングテープを製造した。
陰極、陽極、およびセパレータを含むゼリーロール状の電極組立体(断面直径:17.2mm)の外周の約50%の面積を覆うようにスウェリングテープを貼り付けて、前記組立体を円筒状の缶(断面直径:17.5mm)に挿入した。次に、前記缶の内部にカーボネート系電解質を注入し、密封して電池を完成した。
スウェリングテープの製造
イソシアネート化合物として芳香族イソシアネート化合物、ポリオール化合物としてポリエステルポリオール、および鎖延長剤としてブタンジオールを、それぞれ32:58:10の重量比で配合した混合物で製造された熱可塑性ポリウレタン(TPU)フィルムとして、ショアD硬度が35Dであり、長さ方向への変形率(膨張率)が20%であり、厚さが約40μmの無延伸フィルムを基材フィルムとして用いた。前記基材フィルムの一面にイソシアネート架橋剤で架橋されたアクリル粘着樹脂を含むアクリル系粘着層としてガラス板に対する剥離力が1,280gf/25mm程度であり、厚さが15μm程度の粘着層を形成してスウェリングテープを製造した。
陰極、陽極、およびセパレータを含むゼリーロール状の電極組立体(断面直径:17.2mm)の外周の約50%の面積を覆うようにスウェリングテープを貼り付けて、前記組立体を円筒状の缶(断面直径:17.5mm)に挿入した。次に、前記缶の内部にカーボネート系電解質を注入し、密封して電池を完成した。
101 立体形状を具現する前のスウェリングテープ
102 立体形状を具現したスウェリングテープ
2 スウェリングテープ
201 基材フィルム
202 粘着剤層
51a、51b スウェリングテープ
52 缶
53 電極組立体
Claims (17)
- ASTM D2240によるショアA硬度が70A以上、JIS K−7311に基づくショアD硬度が40D以上の基材フィルムと、
前記基材フィルムの一面に、前記基材フィルムの長さ方向に水平な方向に形成されている粘着剤層と、
を含む間隙充填用スウェリングテープ。 - 基材フィルムは、熱可塑性ポリウレタンを含む請求項1に記載の間隙充填用スウェリングテープ。
- 熱可塑性ポリウレタンは、2つ以上のイソシアネート基を有するイソシアネート化合物、ポリオール化合物および鎖延長剤を含む混合物の反応物である請求項2に記載の間隙充填用スウェリングテープ。
- 混合物内でイソシアネート化合物および鎖延長剤の合計含有量は、ポリオール化合物100重量部対比20重量部〜300重量部である請求項3に記載の間隙充填用スウェリングテープ。
- イソシアネート化合物は、芳香族イソシアネート化合物、脂環族イソシアネート化合物または脂肪族イソシアネート化合物である請求項3に記載の間隙充填用スウェリングテープ。
- ポリオール化合物は、ポリエステルポリオール、ポリエステルポリオール、ポリカーボネートポリオール、ポリカプロラクタムポリオール、ポリブタジエンポリオール、またはポリサルファイドポリオールである請求項3に記載の間隙充填用スウェリングテープ。
- 鎖延長剤は、2官能性ヒドロキシ化合物、3官能性ヒドロキシ化合物、4官能性ヒドロキシ化合物、または2官能性アミン化合物である請求項3に記載の間隙充填用スウェリングテープ。
- 基材フィルムは、流体と接触時、長さ方向と垂直な方向に高さが0.001mm〜2.00mmの立体構造を形成する請求項1に記載の間隙充填用スウェリングテープ。
- 粘着剤層は、アクリル粘着剤、ウレタン粘着剤、エポキシ粘着剤、シリコーン粘着剤、またはゴム粘着剤を含む請求項1に記載の間隙充填用スウェリングテープ。
- 粘着剤層は、多官能性架橋剤で架橋されたアクリルポリマーを含む請求項1に記載の間隙充填用スウェリングテープ。
- 第1基板及び前記第1基板と離隔されている第2基板によって形成された間隙を充填する方法として、第1基板または第2基板に請求項1に記載のスウェリングテープの粘着剤層を付着させ、前記スウェリングテープの基材フィルムを流体と接触させることを含む間隙充填方法。
- 第1基板と第2基板によって形成される間隙の幅は、0.001mm〜2.00mmである請求項11に記載の間隙充填方法。
- 第1基板及び第2基板のいずれかは、電極組立体であり、他の一つは、前記電極組立体を収納する缶である請求項11に記載の間隙充填方法。
- 請求項1に記載のテープが外周面に付着している電極組立体。
- 請求項14に記載の電極組立体と、
前記電極組立体が収納されている缶と、
前記缶の内部で前記電極組立体と接触している電解質と、
を含む電池。 - 電極組立体の粘着テープは、電解質によって具現された立体形状により前記電極組立体を缶の内部に固定している請求項15に記載の電池。
- 電解質は、カーボネート系電解液である請求項15に記載の電池。
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| KR10-2012-0130478 | 2012-11-16 | ||
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| KR10-2013-0140175 | 2013-11-18 | ||
| PCT/KR2013/010475 WO2014077649A1 (ko) | 2012-11-16 | 2013-11-18 | 간극 충진용 스웰링 테이프 |
| KR1020130140175A KR101587327B1 (ko) | 2012-11-16 | 2013-11-18 | 간극 충진용 스웰링 테이프 |
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| EP (1) | EP2922114B1 (ja) |
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| CN (1) | CN104781951B (ja) |
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| JP7494440B2 (ja) | 2020-04-06 | 2024-06-04 | エルジー エナジー ソリューション リミテッド | 二次電池用スウェリングテープ及びこれを含む円筒型二次電池 |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20140063479A (ko) | 2014-05-27 |
| CN104781951B (zh) | 2017-05-03 |
| EP2922114A4 (en) | 2016-07-06 |
| US10243233B2 (en) | 2019-03-26 |
| TWI496869B (zh) | 2015-08-21 |
| JP6048589B2 (ja) | 2016-12-21 |
| KR101587327B1 (ko) | 2016-01-20 |
| TW201437314A (zh) | 2014-10-01 |
| US20150307752A1 (en) | 2015-10-29 |
| CN104781951A (zh) | 2015-07-15 |
| EP2922114A1 (en) | 2015-09-23 |
| WO2014077649A1 (ko) | 2014-05-22 |
| EP2922114B1 (en) | 2020-09-16 |
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