JP6596504B2 - 湾曲型電極組立体の製造方法 - Google Patents
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- H01M10/0468—Compression means for stacks of electrodes and separators
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
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- B32B37/0046—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by constructional aspects of the apparatus
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
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- H—ELECTRICITY
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- H—ELECTRICITY
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- H—ELECTRICITY
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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
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Description
(S1)一つ以上の負極、一つ以上の正極及び一つ以上の分離膜を含み、ここで、負極と正極とは分離膜が介されて電気的に絶縁された状態で積層された積層構造体を準備する段階と、
(S2)前記積層構造体を一対の圧着ローラーの間を通過させて圧着する圧着工程を行って単位セルを準備する段階と、を含み、
前記(S2)段階によって得られた単位セルが、曲率半径Rで湾曲した形態を有することである。
本発明の第8実施形態は、前記第7実施形態において、前記上部ジグ及び下部ジグが、圧着時に相互重ねられるように同一方向に湾曲したことである。
(S2)前記積層構造体を圧着して単位セルを準備する段階、
(S3)前記(S2)によって得られた二つ以上の単位セルを積層して圧着する段階。
50 カッター
100a、100a’ 単位セル
100b 電極組立体
Claims (7)
- (S1)一つ以上の負極、一つ以上の正極及び一つ以上の分離膜を含み、ここで、前記負極と前記正極とは前記分離膜が介されて電気的に絶縁された状態で積層された積層構造体を準備する段階と、
(S2)前記積層構造体を一対の圧着ローラーの間を通過させて圧着するロールラミネーション工程を行って複数の単位セルを準備する段階と、
(S3)前記(S2)の段階によって得られた複数の単位セルを積層して圧着する段階と
を含み、
前記(S2)の段階によって得られた単位セルが、曲率半径Rで湾曲した形態を有し、
曲率半径Rを有する複数の単位セルを積層して電極組立体を製造する方法であって、
前記単位セルのうち最長曲率半径R1を有する単位セルと最短曲率半径R2を有する単位セルとの曲率半径の差を示す曲率半径の最大差が10%以内であり、
前記曲率半径の最大差が、下記の数式によって計算される、湾曲型電極組立体の製造方法。
- 前記(S2)の段階を行う前、単位セルが曲率半径Rで湾曲した形態を有するようにロールラミネーション工程条件が設定される段階(S2’)をさらに含む、請求項1に記載の湾曲型電極組立体の製造方法。
- 前記(S2)の段階が、加熱条件下で行われる、請求項1に記載の湾曲型電極組立体の製造方法。
- 前記(S2)の圧着ローラーは、設定された温度、圧力、及びローラーの回転速度のうちの少なくとも1つが制御可能な制御装置を備える、請求項1に記載の湾曲型電極組立体の製造方法。
- 前記単位セルが、同一の温度、圧力、及びローラーの回転速度のうちの少なくとも1つで制御された(S2)の段階によって得られる、請求項1に記載の湾曲型電極組立体の製造方法。
- 前記(S3)の段階は湾曲型のジグを用いて行われ、前記ジグが、a)前記複数の単位セルが積層されて載置され、熱圧着時に前記複数の単位セルを上方に支持する曲面を有する下部ジグと、b)前記複数の単位セルを下方に加圧する曲面を有する上部ジグと、を備え、前記下部ジグの曲面及び前記上部ジグの曲面は、相互に重ねられるような同一方向に湾曲しており、且つ曲率半径Rを有する、請求項1に記載の湾曲型電極組立体の製造方法。
- 前記単位セルが、ロールラミネーション工程によって予め設定された曲率半径Rを有するように湾曲して準備される、請求項1に記載の湾曲型電極組立体の製造方法。
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KR10-2015-0089126 | 2015-06-23 | ||
KR20150089126 | 2015-06-23 | ||
PCT/KR2016/006643 WO2016208970A1 (ko) | 2015-06-23 | 2016-06-23 | 만곡형 전극 조립체 제조 방법 |
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US (1) | US10566604B2 (ja) |
EP (1) | EP3261162B1 (ja) |
JP (1) | JP6596504B2 (ja) |
KR (1) | KR101963763B1 (ja) |
CN (1) | CN107810569B (ja) |
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WO (1) | WO2016208970A1 (ja) |
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HUE063050T2 (hu) * | 2017-07-18 | 2023-12-28 | Lg Energy Solution Ltd | Eljárás elektródegységek elõállítására |
KR102242250B1 (ko) * | 2017-07-18 | 2021-04-21 | 주식회사 엘지화학 | 전극 조립체 제조방법 및 전극 조립체 가압 장치 |
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CN109411643B (zh) | 2018-12-10 | 2021-09-14 | 宁德新能源科技有限公司 | 电池组 |
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EP3261162A1 (en) | 2017-12-27 |
EP3261162B1 (en) | 2021-11-10 |
US20180076442A1 (en) | 2018-03-15 |
KR20170000368A (ko) | 2017-01-02 |
WO2016208970A1 (ko) | 2016-12-29 |
JP2018511144A (ja) | 2018-04-19 |
CN107810569B (zh) | 2020-02-21 |
TW201711253A (zh) | 2017-03-16 |
CN107810569A (zh) | 2018-03-16 |
US10566604B2 (en) | 2020-02-18 |
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EP3261162A4 (en) | 2018-11-07 |
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