JP2015535896A - 有機バインダー高分子化合物で被覆されている繊維から形成された不織布、その不織布を含む電気化学素子、及びその不織布の製造方法 - Google Patents
有機バインダー高分子化合物で被覆されている繊維から形成された不織布、その不織布を含む電気化学素子、及びその不織布の製造方法 Download PDFInfo
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- JP2015535896A JP2015535896A JP2015534402A JP2015534402A JP2015535896A JP 2015535896 A JP2015535896 A JP 2015535896A JP 2015534402 A JP2015534402 A JP 2015534402A JP 2015534402 A JP2015534402 A JP 2015534402A JP 2015535896 A JP2015535896 A JP 2015535896A
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- Prior art keywords
- nonwoven fabric
- separation membrane
- ether
- binder polymer
- polymer compound
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 27
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- 238000000926 separation method Methods 0.000 claims abstract description 38
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Abstract
Description
前記不織布には、直径0.001〜10μmの気孔が形成され得る。
前記不織布は、電気化学素子用分離膜基材として使用され得る。
前記電気化学素子は、リチウム二次電池であり得る。
前記有機バインダー高分子化合物溶液は、1〜100 cP(centipoise)の粘度を有し得る。
また、電気化学素子用分離膜としての不織布の使用において、別途の接着層を形成する必要がないため、分離膜の製造工程が単純化する効果を奏する。
本発明における「ウェブ繊維」及び「繊維」は、紡糸されて不織布を形成する繊維を称する。
繊維は5〜20g/m2の単位面積当たり重量を有し得るが、これらに制限されることはない。
不織布基材の通気度は、1〜10sec/100mLであり得る。
本発明の他の態様は、多孔性ウェブ不織布の製造方法に関する。
上述したように製造された不織布は、その用途が特に限定されないが、特に、電気化学素子の分離膜として使用することができる。
本発明の分離膜とともに適用される電極は特に制限されず、当業界で周知の方法によって電極活物質を電極集電体に結着させた形態で製造することができる。
本発明による電極は、必要に応じて、導電材、結着剤及び充填材などの成分を選択的に更に含むことができる。
前記導電材としては、アセチレンブラックやカーボンブラック類を使用できるが、これらに限定されることはない。
Claims (12)
- 有機バインダー高分子化合物で被覆されている繊維を備えた、不織布。
- 直径0.001〜10μmの気孔が形成されていることを特徴とする、請求項1に記載の不織布。
- 前記有機バインダー高分子化合物が、アクリル系粘着性化合物、ゴム系粘着性化合物、シリコーン系粘着性化合物、及びビニルエーテル系粘着性化合物から選択された一種または二種以上の混合物であることを特徴とする、請求項1に記載の不織布。
- 前記繊維が、ポリウレタン、ポリオレフィン系樹脂、ポリアミド、熱可塑性ポリウレタン、ポリエチレンテレフタレート、ナイロン、及びこれらの共重合体から選択された一種または二種以上の混合物から紡糸されたものであることを特徴とする、請求項1に記載の不織布。
- 請求項1〜4の何れか一項に記載の不織布を基材として備えてなる、電気化学素子用分離膜。
- 電気化学素子であって、
正極と、負極と、前記正極と前記負極との間に介在された分離膜と、及び電解質とを備えてなり、
前記分離膜が、請求項5に記載の分離膜である、電気化学素子。 - 前記電気化学素子が、リチウム二次電池であることを特徴とする、請求項6に記載の電気化学素子。
- 不織布を使用した分離膜の製造方法であって、
紡糸された繊維を有機バインダー高分子化合物溶液に浸漬する段階を含んでなる、分離膜の製造方法。 - 有機バインダー高分子化合物溶液で被覆された繊維を100〜200℃の温度、及び、10〜500MPaの圧力条件でカレンダリングする段階を更に含んでなることを特徴とする、請求項8に記載の分離膜の製造方法。
- 前記繊維が、ポリウレタン、ポリオレフィン系樹脂、ポリアミド、熱可塑性ポリウレタン、ポリエチレンテレフタレート、ナイロン、及びこれらの共重合体から選択された一種または二種以上の混合物を紡糸して得られたことを特徴とする、請求項8に記載の分離膜の製造方法。
- 前記バインダー高分子化合物溶液が、アセトン、メチルエチルケトン、メチルイソブチルケトン、メチルセロソルブ、エチルセロソルブ、テトラハイドロフラン、1,4‐ジオキサン、エチレングリコールジメチルエーテル、エチレングリコールジエチルエーテル、プロピレングリコールジメチルエーテル、プロピレングリコールジエチルエーテル、クロロホルム、塩化メチレン、1,2‐ジクロロエタン、1,1,1‐トリクロロエタン、1,1,2‐トリクロロエタン、1,1,2‐トリクルロロエテン、1,2,3‐卜リクロロプロパン、ヘキサン、ヘプタン、オクタン、シクロペンタン、シクロヘキサン、ベンゼン、トルエン、キシレン、メタノール、エタノール、イソプロパノール、プロパノール、ブタノール、t‐ブタノール、プロピレングリコールモノメチルエーテル、プロピレングリコールモノエチルエーテル、プロピレングリコールモノプロピルエーテル、プロピレングリコールモノブチルエーテル、ジプロピレングリコールジメチルエーテル、ジプロピレングリコールジエチルエーテル、ジプロピレングリコールモノメチルエーテル、メチルカルビトール、エチルカルビトール、プロピルカルビトール、ブチルカルビトール、シクロペンタノン、シクロヘキサノン、プロピレングリコールメチルエーテルアセテート、プロピレングリコールエチルエーテルアセテート、プロピレングリコールメチルエーテルプロピオネート、3‐メトキシブチルアセテート、3‐メチル‐3‐メトキシブチルアセテート、エチル‐3‐エトキシプロピオネート、エチルセロソルブアセテート、メチルセロソルブアセテート、ブチルアセテート、プロピルアセテート、及びエチルアセテートからなる群より選択された一種または二種以上の混合物である溶媒中に、アクリル系粘着性化合物、ゴム系粘着性化合物、シリコーン系粘着性化合物またはビニルエーテル系粘着性化合物が溶解されているものであることを特徴とする、請求項8に記載の分離膜の製造方法。
- 前記バインダー高分子化合物溶液の粘度が、1〜100cPであることを特徴とする、請求項11に記載の分離膜の製造方法。
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KR20120138494 | 2012-11-30 | ||
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PCT/KR2013/011037 WO2014084683A1 (ko) | 2012-11-30 | 2013-11-29 | 유기 바인더 고분자 화합물로 피복되어 있는 섬유로 형성된 부직포, 이러한 부직포를 포함하고 있는 전기화학소자 및 상기 부직포의 제조방법 |
KR1020130147402A KR101546481B1 (ko) | 2012-11-30 | 2013-11-29 | 유기 바인더 고분자 화합물로 피복되어 있는 섬유로 형성된 부직포, 이러한 부직포를 포함하고 있는 전기화학소자 및 상기 부직포의 제조방법 |
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US10388962B2 (en) * | 2014-09-05 | 2019-08-20 | Lg Chem, Ltd. | Lithium electrode, lithium secondary battery comprising same, battery module comprising lithium secondary battery, and preparation method of lithium electrode |
JP6408137B2 (ja) * | 2015-04-06 | 2018-10-17 | 株式会社東芝 | 電極、電極群及び非水電解質電池 |
CN108140787B (zh) * | 2015-08-17 | 2022-01-04 | 赛尔格有限责任公司 | 改进的电池隔板和相关方法 |
JP6848051B2 (ja) * | 2017-03-28 | 2021-03-24 | 株式会社東芝 | 電極構造体および二次電池 |
CN108539251A (zh) * | 2018-05-09 | 2018-09-14 | 安徽宝岛新能源发展有限公司 | 一种电动汽车用便携式锂电池 |
CN112514152B (zh) * | 2018-08-10 | 2023-07-14 | 日本瑞翁株式会社 | 非水系二次电池粘接层用浆料组合物、粘接层、间隔件以及非水系二次电池 |
CN109111443A (zh) * | 2018-08-28 | 2019-01-01 | 上海迪赛诺药业股份有限公司 | Dpp-iv抑制剂类降糖药的新晶型及其制备方法 |
CN109888286B (zh) * | 2019-01-23 | 2022-07-12 | 西安交通大学 | 一种动态离子交联的聚丙烯酸-聚乙二醇水凝胶粘合剂及其制备方法和应用 |
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CN104136672B (zh) | 2017-09-05 |
PL2781637T3 (pl) | 2024-05-20 |
KR101546481B1 (ko) | 2015-08-21 |
ES2977141T3 (es) | 2024-08-19 |
BR112014015684A8 (pt) | 2017-07-04 |
EP2781637B1 (en) | 2024-02-21 |
KR20140070463A (ko) | 2014-06-10 |
US10153469B2 (en) | 2018-12-11 |
CN104136672A (zh) | 2014-11-05 |
BR112014015684A2 (pt) | 2017-06-13 |
IN2014MN02250A (ja) | 2015-07-24 |
WO2014084683A1 (ko) | 2014-06-05 |
EP2781637A4 (en) | 2015-09-30 |
BR112014015684B8 (pt) | 2023-01-17 |
FI2781637T3 (fi) | 2024-05-16 |
US20140272525A1 (en) | 2014-09-18 |
EP2781637A1 (en) | 2014-09-24 |
BR112014015684B1 (pt) | 2021-08-31 |
JP6096908B2 (ja) | 2017-03-15 |
HUE066042T2 (hu) | 2024-07-28 |
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