JP2017162803A - ドクターブレード、塗工装置及び積層セパレータの製造方法 - Google Patents
ドクターブレード、塗工装置及び積層セパレータの製造方法 Download PDFInfo
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- H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
- H01M50/409—Separators, membranes or diaphragms characterised by the material
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Abstract
Description
(塗工装置10の構成)
図1は、実施形態1に係る塗工装置10の構成を模式的に示す図である。塗工装置10は、搬送ローラR1・R2により搬送されて走行するセパレータ9(電池部材)に、容器7に収容された塗液8を塗布する。
塗液8は、セパレータ9の耐熱性を向上させるためのフィラーを含む。セパレータ9の耐熱層を形成する塗液8に含まれるフィラーは、電池用セパレータとして用いたときに、電池の圧縮等の外力によって変形、破砕しないように一定以上の硬度が必要である。また、セパレータ9の基材フィルムが溶融した後も正極と負極とを絶縁し続ける必要があるため、フィラーは耐熱性も必要である。上記特性を満たす材質として、フィラーには無機フィラー(無機微粒子)が用いられることが好ましい。
塗工装置10には、ドクターブレード1が設けられている。ドクターブレード1は、塗工ローラ5の周面6上の塗液8を掻き落とす。
図4は、ドクターブレード1により塗液8を掻き落とされた塗工ローラ5の表面状態を示す写真であり、(a)は掻き落とし状態が不良である表面状態を示し、(b)は掻き落とし状態が良好である表面状態を示す。
ドクターブレード1の表面の材質として、本発明者らは特に樹脂に着目し、超高分子量ポリエチレン(UHPE、ブレード名称:メイラー)、ポリエステル(ブレード名称:マニーベール)、及びポリアセタール(ブレード名称:PS)についてドクターブレード1の設備条件及び刃先形状を検討した。
MD塗工目付の変化は、各測定点でサンプリングしたうちの中央部分の試験片目付を比較することで評価した。具体的には初期状態である250m地点の目付量から各測定点における中央部分の位置15aにおけるサンプルの目付量を減算した値である。結果を(表7)に示す。
2 基部
3 先端部
3A 表面
4 圧接面
5 塗工ローラ
6 周面
9 セパレータ(積層セパレータ)
θ2 べベル角
Claims (12)
- 走行する電池部材にフィラーを含む塗液を塗工するための塗工ローラの周面上の塗液を掻き落とすドクターブレードであって、
表面が非導電性材料により形成されていることを特徴とするドクターブレード。 - 前記非導電性材料が樹脂を含む請求項1に記載のドクターブレード。
- 前記樹脂が超高分子量ポリエチレンを含む請求項2に記載のドクターブレード。
- 前記ドクターブレードは、板状の基部と前記基部よりも薄く形成された板状の先端部とを含む段付形状を有する請求項3に記載のドクターブレード。
- 前記ドクターブレードは、板状の先端部を有し、
前記先端部は、前記塗工ローラの周面に圧接される圧接面を有し、
前記圧接面と前記先端部の表面との間のべベル角が30°以上60°未満である請求項1から3のいずれか一項に記載のドクターブレード。 - 前記先端部は、前記塗工ローラの周面に圧接される圧接面を有し、
前記圧接面と前記先端部の表面との間のべベル角が30°以上60°未満である請求項4に記載のドクターブレード。 - 前記電池部材がセパレータである請求項1から6のいずれか一項に記載のドクターブレード。
- 前記フィラーが無機フィラーである請求項1から7のいずれか一項に記載のドクターブレード。
- 前記フィラーのモース硬度が4以上である請求項1から8のいずれか一項に記載のドクターブレード。
- 前記フィラーが無機酸化物を含む請求項1から9のいずれか一項に記載のドクターブレード。
- 走行する電池部材にフィラーを含む塗液を塗工するための塗工ローラと、
前記塗工ローラの周面上の塗液を掻き落とすドクターブレードとを備えた塗工装置であって、
前記ドクターブレードの表面が非導電性材料により形成されていることを特徴とする塗工装置。 - 請求項11に記載の塗工装置を用いて塗液をセパレータに塗布し、塗布層を形成する工程を含むことを特徴とする積層セパレータの製造方法。
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| Application Number | Priority Date | Filing Date | Title |
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| JP2016044567 | 2016-03-08 | ||
| JP2016044567 | 2016-03-08 |
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| JP2017162803A true JP2017162803A (ja) | 2017-09-14 |
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| US (1) | US10421094B2 (ja) |
| JP (1) | JP6932520B2 (ja) |
| KR (1) | KR20170104930A (ja) |
| CN (1) | CN107159510A (ja) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2023523279A (ja) * | 2020-10-19 | 2023-06-02 | エルジー エナジー ソリューション リミテッド | リチウム二次電池用セパレーター及びこれを備えたリチウム二次電池 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11712655B2 (en) * | 2020-11-30 | 2023-08-01 | H2 Powertech, Llc | Membrane-based hydrogen purifiers |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015130270A (ja) * | 2014-01-07 | 2015-07-16 | 富士機械工業株式会社 | 塗工装置 |
| JP2017006867A (ja) * | 2015-06-24 | 2017-01-12 | 富士機械工業株式会社 | グラビア塗工装置 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6867155B2 (en) * | 1999-10-15 | 2005-03-15 | Kadant Web Systems, Inc. | Non-abrasive composite doctor blade |
| JP2005296723A (ja) * | 2004-04-07 | 2005-10-27 | Mitsubishi Heavy Ind Ltd | 塗工装置 |
| JP4967411B2 (ja) * | 2006-03-30 | 2012-07-04 | パナソニック株式会社 | 多孔質耐熱層の形成方法および多孔質耐熱層の形成装置 |
| CN101462104A (zh) * | 2008-04-30 | 2009-06-24 | 海尔集团公司 | 一种涂层金属板加工方法及设备 |
| JP6046416B2 (ja) * | 2011-08-23 | 2016-12-14 | 日本碍子株式会社 | ハニカム構造体の製造方法 |
| JP5742784B2 (ja) | 2012-05-21 | 2015-07-01 | トヨタ自動車株式会社 | 塗工装置、塗装済材の製造方法、耐熱皮膜付セパレータ原反の製造方法、耐熱皮膜付セパレータの製造方法及び電池の製造方法 |
| JP5971157B2 (ja) * | 2013-03-11 | 2016-08-17 | Jfeスチール株式会社 | 塗布装置および塗布方法 |
| CN203170534U (zh) * | 2013-03-25 | 2013-09-04 | 无锡侨颂特种纸有限公司 | 涂布用刮刀 |
| CN203292019U (zh) * | 2013-06-18 | 2013-11-20 | 邵阳市达力电源实业有限公司 | 转移、挤压涂布一体机 |
| JP6277490B2 (ja) * | 2014-02-10 | 2018-02-14 | パナソニックIpマネジメント株式会社 | 塗膜物の製造装置 |
| JP6277491B2 (ja) * | 2014-02-25 | 2018-02-14 | パナソニックIpマネジメント株式会社 | 塗膜物の製造装置 |
| CN104646239B (zh) * | 2015-02-11 | 2017-11-07 | 华南理工大学 | 一种具有磨损自动报警开关的涂布刮刀 |
| CN204564479U (zh) * | 2015-04-17 | 2015-08-19 | 天津力神电池股份有限公司 | 新型涂布机刮刀 |
-
2017
- 2017-02-24 JP JP2017033721A patent/JP6932520B2/ja active Active
- 2017-03-02 KR KR1020170027028A patent/KR20170104930A/ko not_active Ceased
- 2017-03-07 CN CN201710134076.7A patent/CN107159510A/zh active Pending
- 2017-03-07 US US15/451,794 patent/US10421094B2/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015130270A (ja) * | 2014-01-07 | 2015-07-16 | 富士機械工業株式会社 | 塗工装置 |
| JP2017006867A (ja) * | 2015-06-24 | 2017-01-12 | 富士機械工業株式会社 | グラビア塗工装置 |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2023523279A (ja) * | 2020-10-19 | 2023-06-02 | エルジー エナジー ソリューション リミテッド | リチウム二次電池用セパレーター及びこれを備えたリチウム二次電池 |
| JP7608008B2 (ja) | 2020-10-19 | 2025-01-06 | エルジー エナジー ソリューション リミテッド | リチウム二次電池用セパレーター及びこれを備えたリチウム二次電池 |
| US12525685B2 (en) | 2020-10-19 | 2026-01-13 | Lg Energy Solution, Ltd. | Separator for lithium secondary battery and lithium secondary battery including the same |
Also Published As
| Publication number | Publication date |
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| CN107159510A (zh) | 2017-09-15 |
| US10421094B2 (en) | 2019-09-24 |
| US20170259293A1 (en) | 2017-09-14 |
| KR20170104930A (ko) | 2017-09-18 |
| JP6932520B2 (ja) | 2021-09-08 |
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