JP6828634B2 - 負極の製造方法 - Google Patents
負極の製造方法 Download PDFInfo
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- JP6828634B2 JP6828634B2 JP2017153335A JP2017153335A JP6828634B2 JP 6828634 B2 JP6828634 B2 JP 6828634B2 JP 2017153335 A JP2017153335 A JP 2017153335A JP 2017153335 A JP2017153335 A JP 2017153335A JP 6828634 B2 JP6828634 B2 JP 6828634B2
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- H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
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- H01M10/052—Li-accumulators
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
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- H01M4/04—Processes of manufacture in general
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- H01M4/0404—Methods of deposition of the material by coating on electrode collectors
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- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/62—Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
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- H—ELECTRICITY
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- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/62—Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
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- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/4235—Safety or regulating additives or arrangements in electrodes, separators or electrolyte
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- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
- H01M50/46—Separators, membranes or diaphragms characterised by their combination with electrodes
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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
負極活物質:アモルファスカーボンコートグラファイト
増粘剤:CMC
溶媒:イオン交換水
フィラー:べーマイト
増粘剤:CMC
バインダ:アクリル系エマルジョン(平均粒径200nm)
溶媒:イオン交換水
(1)CMC溶解:イオン交換水にCMCを添加し、超音波分散にてCMCを溶解
(2)フィラー分散:(1)にベーマイトを添加し、超音波分散にてベーマイトを分散
(3)バインダ混合:(2)にバインダを添加し、超音波分散にてバインダを混合
なお、バインダの添加量は、後述するように、比較例、実施例1、実施例2では、HRLペースト105の10wt%とし、実施例3では4wt%とした。
(1)成膜装置2にて、造粒体101を銅箔102上に成膜する。
(2)HRL塗工装置3にて、造粒体101の層の上に上記の手順で作成したHRLペースト105を塗工する。
(3)乾燥装置4にて、HRLペースト105を塗工した未乾燥負極106を乾燥する。本実験で用いた乾燥装置4は、3つの乾燥炉411〜413を備え、各炉の乾燥時間は約3秒である。なお、各例で変更したのは、第1炉411の設定温度のみであり、第2炉412と第3炉413との設定温度は、いずれの例においても120℃とした。
2 成膜装置
3 HRL塗工装置
4 乾燥装置
411〜413 乾燥炉(第1炉,第2炉、第3炉)
Claims (2)
- 負極活物質を含む粉体を湿潤して粒状とした造粒体を膜状とした活物質膜を、帯状の銅箔の上に成膜する成膜工程と、
前記活物質膜の上にペースト状の耐熱層を塗工する塗工工程と、
前記活物質膜と前記耐熱層とを乾燥させる乾燥工程と、
を含み、
前記塗工工程では、前記耐熱層として、バインダが添加された材料を塗工し、
前記乾燥工程は、
第1の工程と、
前記第1の工程よりも後の第2の工程とを含み、
前記第1の工程で用いる乾燥温度を、150℃以上である第1の温度とし、前記第2の工程で用いる乾燥温度を前記第1の温度よりも低い温度であって、120℃以下である第2の温度とする、
ことを特徴とする負極の製造方法。 - 請求項1に記載の負極の製造方法において、
前記第1の温度は、180℃である、
ことを特徴とする負極の製造方法。
Priority Applications (3)
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JP2017153335A JP6828634B2 (ja) | 2017-08-08 | 2017-08-08 | 負極の製造方法 |
CN201810795752.XA CN109390560B (zh) | 2017-08-08 | 2018-07-19 | 负极的制造方法 |
US16/055,297 US10892475B2 (en) | 2017-08-08 | 2018-08-06 | Manufacturing method of negative electrode |
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JP2017153335A JP6828634B2 (ja) | 2017-08-08 | 2017-08-08 | 負極の製造方法 |
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JP2019032996A JP2019032996A (ja) | 2019-02-28 |
JP6828634B2 true JP6828634B2 (ja) | 2021-02-10 |
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US (1) | US10892475B2 (ja) |
JP (1) | JP6828634B2 (ja) |
CN (1) | CN109390560B (ja) |
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CN110828772B (zh) * | 2019-12-06 | 2020-11-10 | 联动天翼新能源有限公司 | 一种极片的干法制备工艺及极片的连续生产设备 |
CN114792801B (zh) * | 2022-03-29 | 2023-05-30 | 内蒙古骅扬高新材料科技有限公司 | 一种电池负极新材料及其制备方法 |
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JP4668539B2 (ja) * | 2004-02-25 | 2011-04-13 | 石原産業株式会社 | チタン酸リチウムの製造方法及びリチウム電池の製造方法 |
JP2005251481A (ja) * | 2004-03-02 | 2005-09-15 | Sanyo Electric Co Ltd | 非水電解質二次電池の製造方法及び非水電解質二次電池用電極板乾燥装置 |
CN100367559C (zh) * | 2004-09-03 | 2008-02-06 | 松下电器产业株式会社 | 锂离子二次电池 |
KR100670488B1 (ko) * | 2005-10-06 | 2007-01-16 | 삼성에스디아이 주식회사 | 이차 전지용 극판의 제조 방법 |
JP5008180B2 (ja) * | 2006-02-13 | 2012-08-22 | 日立マクセルエナジー株式会社 | 非水二次電池 |
US8216719B2 (en) | 2006-02-13 | 2012-07-10 | Hitachi Maxell Energy, Ltd. | Non-aqueous secondary battery and method for producing the same |
JP2010102926A (ja) * | 2008-10-23 | 2010-05-06 | Toyota Motor Corp | 電極板の製造方法 |
KR101198806B1 (ko) * | 2010-12-06 | 2012-11-07 | 현대자동차주식회사 | 다공절연층을 포함하는 이차전지 전극 및 그 제조 방법 |
JP5698044B2 (ja) * | 2011-03-22 | 2015-04-08 | 株式会社Screenホールディングス | 電池用電極の製造方法及び電池用電極製造装置 |
CN103781861B (zh) * | 2011-08-31 | 2016-11-16 | 住友化学株式会社 | 涂布液、层叠多孔膜及层叠多孔膜的制造方法 |
JP5655769B2 (ja) * | 2011-12-09 | 2015-01-21 | トヨタ自動車株式会社 | 電極の製造方法 |
CN103855358B (zh) * | 2012-12-07 | 2017-10-17 | 华为技术有限公司 | 锂电池负极及其制备方法、锂电池与应用 |
JP6284020B2 (ja) * | 2014-04-07 | 2018-02-28 | トヨタ自動車株式会社 | 電極シートの製造方法 |
JP6399921B2 (ja) * | 2014-12-22 | 2018-10-03 | 三星エスディアイ株式会社Samsung SDI Co., Ltd. | 非水電解質二次電池用電極巻回素子、それを用いた非水電解質二次電池、及び非水電解質二次電池用電極巻回素子の製造方法 |
JP6142884B2 (ja) * | 2015-02-16 | 2017-06-07 | トヨタ自動車株式会社 | 非水電解質二次電池の製造方法 |
JP6264320B2 (ja) | 2015-04-14 | 2018-01-24 | トヨタ自動車株式会社 | 非水電解液二次電池およびその製造方法 |
JP2017033871A (ja) * | 2015-08-05 | 2017-02-09 | 株式会社豊田自動織機 | 負極及びリチウムイオン二次電池並びにその製造方法 |
JP2017103092A (ja) | 2015-12-01 | 2017-06-08 | 株式会社豊田自動織機 | 電極組立体の製造方法 |
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- 2017-08-08 JP JP2017153335A patent/JP6828634B2/ja active Active
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- 2018-07-19 CN CN201810795752.XA patent/CN109390560B/zh active Active
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Publication number | Publication date |
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US10892475B2 (en) | 2021-01-12 |
JP2019032996A (ja) | 2019-02-28 |
CN109390560A (zh) | 2019-02-26 |
US20190051888A1 (en) | 2019-02-14 |
CN109390560B (zh) | 2021-07-13 |
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