JP2011165663A - 機能性膜コーティング装置およびコーティング方法 - Google Patents
機能性膜コーティング装置およびコーティング方法 Download PDFInfo
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Abstract
【解決手段】本発明の一実施形態による機能性膜コーティング装置は、活物質層が形成された集電体に機能性膜をコーティングする装置であって、前記集電体を進行させる第1ロールと第2ロール;前記機能性膜を前記活物質層にコーティングするように構成されたグラビアロール;前記活物質層と機能性膜との合計厚さと前記活物質層の厚さのうちの少なくとも一つを測定するように構成された厚さ測定器;および前記厚さ測定器と連結され、前記グラビアロールの回転速度を制御するように構成された制御部を含む。
【選択図】図1
Description
102、202 第1、第2電極板
21 集電体
121、221 第1、第2集電体
22 活物質層
122、222 第1、第2活物質層
23 機能性膜
123、223 第1、第2機能性膜
200 電極組立体
302 分離膜
31、32 第1、第2ロール
33 グラビアロール
G 微細溝
34 ダム(dam)
40 ドクターブレードユニット
42 ドクターブレード
W ドクターブレード幅
43 支持台
44 ストレインゲージ
45 ホルダー(holder)
451、452 上下板
46 サーボモータ
47 制御部
48 リミットスイッチ
51、52 第1、第2厚さ測定器
L1 機能性膜の長さ
L2 活物質層の長さ
L3、L4 側端部
M 集電体の進行方向
M1、M2 第1、第2測定値
N1 ドクターブレード状態の初期応力変形値
N2 リアルタイムで確認されるドクターブレード測定応力変形値
Rf 固定抵抗
Rv 可変抵抗
S2 合計厚さの設定値
T1 活物質層厚さ
T2 活物質層と機能性膜との合計厚さ
ΔV 回転速度変更比
Claims (19)
- 活物質層が形成された集電体に機能性膜をコーティングする装置において、
前記集電体を進行させる第1ロールと第2ロール;
前記機能性膜を前記活物質層にコーティングするように構成されたグラビアロール;
前記活物質層と機能性膜との合計厚さと前記活物質層の厚さのうちの少なくとも一つを測定するように構成された厚さ測定器;および
前記厚さ測定器と連結され、前記グラビアロールの回転速度を制御するように構成された制御部;
を含む、機能性膜コーティング装置。 - 前記制御部は、前記活物質層の厚さと設定された厚さとの差に基づいて前記グラビアロールの回転速度を制御するように構成された、請求項1に記載の機能性膜コーティング装置。
- 前記制御部は、前記合計厚さと設定された厚さとの差に基づいて前記グラビアロールの回転速度を制御するように構成された、請求項1に記載の機能性膜コーティング装置。
- 前記グラビアロールから余剰分の機能性膜物質をかき出すように構成されたドクターブレードユニットをさらに含み、前記制御部は前記ドクターブレードユニットの位置を制御するように構成された、請求項1に記載の機能性膜コーティング装置。
- 活物質層が形成された集電体に機能性膜をコーティングする方法において、
第1ロールと第2ロールに沿って前記活物質層が形成された集電体を進行させ、
グラビアロールを利用して前記機能性膜を前記活物質層にコーティングし、
前記活物質層と機能性膜との合計厚さが前記機能性膜の長さに沿って均一であるように前記グラビアロールの回転速度を制御する段階を含む、機能性膜コーティング方法。 - 前記機能性膜をコーティングする段階は、
測定器で前記活物質層の厚さを測定し、
前記活物質層の厚さと設定された厚さとを比較し、
前記機能性膜と活物質層との合計厚さが設定された厚さと同一であるように前記活物質層に機能性膜を形成する過程を含む、請求項5に記載の機能性膜コーティング方法。 - 前記回転速度を制御する段階は、
前記測定器で前記活物質層と前記機能性膜との合計厚さを測定し、
前記合計厚さと設定された厚さとを比較し、
前記合計厚さと前記設定された厚さとの差に基づいて前記グラビアロールの回転速度を制御する過程を含む、請求項5に記載の機能性膜コーティング方法。 - 前記活物質層と前記機能性膜との合計厚さを測定する段階は、前記グラビアロールの下流(down stream)で行われ、
前記合計厚さと前記設定された厚さとの差に基づいて前記グラビアロールの回転速度を制御する段階は、
活物質層と機能性膜との合計厚さを制御する過程を含み、
前記グラビアロールの下流で前記測定器による前記合計厚さの測定に基づいて前記測定器の上流(up stream)で行われる、請求項7に記載の機能性膜コーティング方法。 - 活物質層が形成された集電体に機能性膜をコーティングする装置において、
前記機能性膜を前記活物質層にコーティングするように構成されたグラビアロール;
余剰分の機能性膜物質を前記グラビアロールからかき出すドクターブレードと、前記ドクターブレードの応力変形を測定するように構成された少なくとも一つのストレインゲージとを含むドクターブレードユニット;および
前記少なくとも一つのストレインゲージと連結されて前記ドクターブレードユニットの位置を制御するように構成された制御部;
を含む、機能性膜コーティング装置。 - 前記制御部は、前記ドクターブレードの応力変形に基づいた前記ドクターブレードの位置を制御するように構成された、請求項9に記載の機能性膜コーティング装置。
- 前記ドクターブレードユニットは、
前記ドクターブレードと前記少なくとも一つのストレインゲージとの間に位置する支持台、
前記支持台と前記ドクターブレードを固定するホルダー、および
前記制御部により制御され、前記ホルダーを前記グラビアロールに対して動かして前記ドクターブレードと前記グラビアロールとの間の圧力を変更するように構成された少なくとも一つのサーボモータを含む、請求項10に記載の機能性膜コーティング装置。 - 前記制御部は、前記グラビアロールの回転速度を制御するように構成された、請求項10に記載の機能性膜コーティング装置。
- 活物質層が形成された集電体に機能性膜をコーティングする方法において、
ドクターブレードで測定された応力変形を感知し、
前記ドクターブレードの応力変形の最適値と前記測定された応力変形とを比較し、
前記測定された応力変形を感知する段階と、前記応力変形の最適値と前記測定された応力変形とを比較する段階とに基づいて最適のブレーディング状態で前記ドクターブレードを維持することによって、前記グラビアロールから余剰分の機能性膜物質を除去し、
前記活物質層が形成された前記集電体を進行させ、
前記機能性膜と前記活物質層との合計厚さが前記機能性膜の長さに沿って均一であるように前記グラビアロールで前記活物質層に前記機能性膜をコーティングさせる段階を含む、機能性膜コーティング方法。 - 前記最適のブレーディング状態で前記ドクターブレードを維持する段階は、
前記測定された応力変形と前記応力変形の最適値との差に基づいて少なくとも一つのサーボモータを利用して前記グラビアロールに対して前記ドクターブレードを動かすことによって、前記ドクターブレードと前記グラビアロールとの間の圧力を変更する段階を含む、請求項13に記載の機能性膜コーティング方法。 - 前記最適のブレーディング状態で前記ドクターブレードを維持する段階は、
少なくとも一つのストレインゲージで前記測定された応力変形を感知する段階を含む、請求項13に記載の機能性膜コーティング方法。 - 前記少なくとも一つのストレインゲージは支持台に位置し、
前記支持台は前記ストレインゲージと前記ドクターブレードとの間に位置する、請求項15に記載の機能性膜コーティング方法。 - 前記支持台と前記ドクターブレードはホルダーにより固定され、
前記サーボモータは前記ドクターブレードと前記グラビアロールとの間の圧力を変更するために、前記ホルダーを前記グラビアホールに対して動かす、請求項16に記載の機能性膜コーティング方法。 - 前記最適のブレーディング状態で前記ドクターブレードを維持する段階は、
前記グラビアロールに対して前記最適のブレーディング状態で前記ドクターブレードをセッティングし、
前記ドクターブレードが前記最適のブレーディング状態にある間、ストレインゲージで前記応力変形の最適値を測定し、
制御部に前記応力変形の最適値を入力し、
前記ストレインゲージで前記ドクターブレードで測定された応力変形を持続的に測定し、
前記測定された応力変形を前記応力変形の最適値と比較し、
前記測定された応力変形が前記応力変形の最適値と同一でない場合、前記グラビアロールに対して前記ドクターブレードを動かすことによって、前記ドクターブレードと前記グラビアロールとの間の圧力を最適化する段階を含む、請求項13に記載の機能性膜コーティング方法。 - 前記最適のブレーディング状態で前記ドクターブレードを維持する段階は、
前記ドクターブレードが前記グラビアロールに対して動いた距離が予め設定された上限距離よりも大きい場合に警報を鳴らすことをさらに含む、請求項18に記載の機能性膜コーティング方法。
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| US28240910P | 2010-02-04 | 2010-02-04 | |
| US61/282,409 | 2010-02-04 | ||
| US12/923,506 | 2010-09-24 | ||
| US12/923,506 US20110189378A1 (en) | 2010-02-04 | 2010-09-24 | Apparatus and method for coating a functional layer |
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| JP5517358B2 JP5517358B2 (ja) | 2014-06-11 |
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| JPWO2020195055A1 (ja) * | 2019-03-27 | 2020-10-01 | ||
| JP7394327B2 (ja) | 2019-03-27 | 2023-12-08 | パナソニックIpマネジメント株式会社 | 二次電池 |
| JP7471113B2 (ja) | 2020-03-10 | 2024-04-19 | 住友化学株式会社 | 積層体の製造方法、及び管理方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| US20130017319A1 (en) | 2013-01-17 |
| US20110189378A1 (en) | 2011-08-04 |
| KR101256068B1 (ko) | 2013-04-18 |
| EP2355224B1 (en) | 2013-07-31 |
| CN102145327B (zh) | 2014-01-29 |
| CN102145327A (zh) | 2011-08-10 |
| JP5517358B2 (ja) | 2014-06-11 |
| US9088043B2 (en) | 2015-07-21 |
| KR20110090807A (ko) | 2011-08-10 |
| EP2355224A1 (en) | 2011-08-10 |
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