JP6220335B2 - 表面修飾ポリマー材料及びこれを備えた電池セパレータ - Google Patents
表面修飾ポリマー材料及びこれを備えた電池セパレータ Download PDFInfo
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- JP6220335B2 JP6220335B2 JP2014521727A JP2014521727A JP6220335B2 JP 6220335 B2 JP6220335 B2 JP 6220335B2 JP 2014521727 A JP2014521727 A JP 2014521727A JP 2014521727 A JP2014521727 A JP 2014521727A JP 6220335 B2 JP6220335 B2 JP 6220335B2
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- Prior art keywords
- substrate
- polymer
- modified
- polyolefin
- chemically modified
- Prior art date
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Images
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- Y10T428/249921—Web or sheet containing structurally defined element or component
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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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/249921—Web or sheet containing structurally defined element or component
- Y10T428/249953—Composite having voids in a component [e.g., porous, cellular, etc.]
- Y10T428/249978—Voids specified as micro
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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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
- Y10T428/2913—Rod, strand, filament or fiber
- Y10T428/2973—Particular cross section
- Y10T428/2975—Tubular or cellular
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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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
- Y10T442/20—Coated or impregnated woven, knit, or nonwoven fabric which is not [a] associated with another preformed layer or fiber layer or, [b] with respect to woven and knit, characterized, respectively, by a particular or differential weave or knit, wherein the coating or impregnation is neither a foamed material nor a free metal or alloy layer
- Y10T442/2139—Coating or impregnation specified as porous or permeable to a specific substance [e.g., water vapor, air, etc.]
- Y10T442/2148—Coating or impregnation is specified as microporous but is not a foam
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Description
本出願は、2011年7月18日出願の米国仮特許出願第61/508,725号および2011年10月17日出願の米国仮特許出願第61/547,812号のそれぞれへの優先権および利益を主張するものであり、双方ともに、本明細書本明細書に完全に組み込まれる。
面のものに近似する標準のポリオレフィンよりも相当高い表面エネルギーを有するように見える可能性がある。本発明のかかる官能化成分A−B修飾ポリマー基材の用途は、例えば、電池セパレータ材料の改良された湿潤性、抗ファウリング、および特定のコーティング膜、材料、層、または中でも処理のための接着増進を含む。
微多孔性は、1ミクロン未満の有効径の複数の孔を有する製品を指す。疎水性ポリオレフィンは、ポリエチレンの表面エネルギーと同等であるか、またはポリエチレンの表面エネルギーを下回る表面エネルギーを有するポリオレフィンを指す。
a.ポリマー表面は、以下のポリマー分類からの任意の合成または天然ポリマーまたはコポリマーであってもよい:オレフィン、スチレン、シリコーン、ウレタン、アクリレート、エステル、ビニル、セルロース、アミド、アラミド、エーテル、および同等物。それらはまた、フェノールホルムアルデヒド樹脂またはブタジエン、イソプレン、およびネオプレン等のゴム系材料といった架橋ネットワーク材料であってもよい。加えて、PTFE、PVDF、PVDC、およびPVC等のポリマーを含有する他のハロゲンの修飾が、達成され得る。
b.成分Aは、典型的には、疎水性または疎油性処理用途において見られる材料である。織物加工またはキチン質に基づく材料として大量に使用されるフッ素化アクリルコポリマー系等の材料は、油分に対する好適な抵抗を提供し得る。加えて、成分Aは、抵抗強化のためのナノスケール粗度を生成する追加のナノ粒子を有する複合体材料であってもよい。
c.成分Bは、原位置でカルベン種および/またはニトレン種を生成するように調整されたペンダント官能基を有する多機能材料(f>2.0)である。
2.これらの付着量は、有機溶液または水溶液からもたらされてもよく、加熱処理または紫外線への曝露によって発生する。
a.修飾は、所期の用途に必要とされる表面特性をもたらすのに十分な量で、表面に付加され得る。典型的な適用量は、約0.05g/m2〜1.0g/m2以上の範囲であってもよく、いくつかの要因の中でも特に、基材表面領域、溶液粘度、硬化速度に依存する。
b.成分AとBとの割合は、最高の特性を生成するように可変であってもよい。典型的なA/Bの付着量割合は、約0.5〜200.0以上の範囲であってもよく、所望の表面特性およびAとBの反応性に依存する。
Claims (10)
- 表面を有する微多孔性ポリオレフィン基材と、
前記基材の前記表面上に被覆された化学修飾官能化ポリマー(A−B)であって、化学修飾官能化ポリマー(A−B)は、官能化ポリマーまたは分子(成分A)および架橋結合修飾因子(成分B)からなり、
化学修飾官能化ポリマー(A−B)は、ポリオレフィン基材に成分Bおよびポリオレフィン表面間のニトレン挿入反応から形成される共有結合を介してポリオレフィン基材に繋ぎ止められ、
化学修飾官能化ポリマー(A−B)は、基材表面上に0.05g/m2〜1.0g/m2の量、コーティングされ、少なくとも48ダイン/cmの表面エネルギーを有するポリオレフィン電池セパレータである化学修飾基材。 - 前記成分Bに対する前記成分Aの質量比が0.5:1〜200.0:1の範囲である請求項1に記載の化学修飾基材。
- 更に、前記修飾官能化ポリマーを覆うコーティングを有する請求項1に記載の化学修飾基材。
- 前記基材は、フィルム、中空繊維、繊維,織物、複合体、層、表面、膜、多孔性膜、微細孔膜、電池セパレータからなる構造を有する請求項1に記載の化学修飾基材。
- 前記ニトレン挿入反応は熱又は光によって活性化される請求項1に記載の化学修飾基材。
- 前記成分Aは、前記基材の親水性の改変、前記基材の疎水性の改変、前記基材の親油性、前記基材の疎油性、前記基材の表面エネルギーの改変、前記基材の汚染防止、前記基材の抗ファウリング性の促進からなる群から選ばれる官能性を有する請求項1に記載の化学修飾基材。
- 前記成分Aは生体由来のポリマー又は低分子である請求項1に記載の化学修飾基材。
- 請求項1に記載の化学修飾基材を有する電池セパレータ。
- アノード、カソード、前記アノードと前記カソードの間に配置される請求項1に記載の化学修飾基材を有するセパレータ、及び前記アノードと前記カソードを電通させる電解液を有する電池。
- リチウムイオン電池である請求項9に記載の電池。
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JP2019056112A (ja) | 2019-04-11 |
US20130022876A1 (en) | 2013-01-24 |
CN106432778A (zh) | 2017-02-22 |
JP2014527476A (ja) | 2014-10-16 |
JP2022119815A (ja) | 2022-08-17 |
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EP2734574A4 (en) | 2015-11-04 |
JP2020196904A (ja) | 2020-12-10 |
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