JP7446011B2 - リチウム二次電池用電極の製造方法 - Google Patents
リチウム二次電池用電極の製造方法 Download PDFInfo
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Description
活物質として天然黒鉛40重量%、導電材としてカーボンブラック(carbon black)0.8重量%、バインダーとしてスチレンブタジエンゴム0.7重量%及び増粘剤(CMC)0.7重量%を残りの量の蒸留水に添加して負極スラリー(固形分含量:42.2重量%)を準備した。
脱水工程を負圧レベルに圧力を下げて行うことを除いては、実施例1と同じ過程で負極を製造した。
活物質として天然黒鉛40重量%、導電材としてカーボンブラック0.8重量%、バインダーとしてスチレンブタジエンゴム0.7重量%及び増粘剤(CMC)0.7重量%を残りの量の蒸留水に添加して負極スラリー(固形分含量:42.2重量%)を準備した。
実施例1及び比較例1によって製造されたそれぞれの負極に対する乾燥速度を比較し、その結果を図2に示した。
実施例1及び比較例1によって製造された負極に対するSEMイメージをそれぞれ図3A及び図3Bに示した。
実施例1及び比較例1によって製造された負極を1.5cm×7cmの試片で製作した後、ガラス上に両面テープを用いて接着させた後、UTM装備(Comtech QC506B)を使用して、分当たり3mmの速度で両面テープから電極を取り外す時に必要な力、すなわち、剥離強度を測定した。その結果を図4に示した。
実施例1及び比較例1によって製造された負極が含まれたリチウム二次電池セルを製造し、充電0.1C、放電0.1C、30℃の条件下で初期容量に比べて、サイクル進行による容量を測定した。その結果を図5に示した。
Claims (8)
- (ステップS1)活物質、バインダー、導電材及び溶媒を含む電極スラリーを多孔性基材の一面に塗布した後、前記多孔性基材の反対側の面に脱水工程を行って電極層を形成する段階と、
(ステップS2)前記多孔性基材上に形成された電極層に電極集電体を積層させて、多孔性基材、電極層及び電極集電体が順次に積層された積層体を形成し、前記積層体を加圧して追加脱水を行う段階と、
(ステップS3)前記多孔性基材を電極層から分離した後、集電体上に形成された電極層を乾燥する段階と、を含む、電極の製造方法。 - 前記多孔性基材の気孔は、0.1~20μmの平均サイズを有する、請求項1に記載の電極の製造方法。
- 前記多孔性基材の気孔率が、50~95%である、請求項1に記載の電極の製造方法。
- 前記多孔性基材は、ポリマー、ガラス繊維、紙、金属またはセラミック材のメッシュ状である、請求項1に記載の電極の製造方法。
- 前記脱水工程は、負圧で減圧して行われる、請求項1に記載の電極の製造方法。
- 前記活物質は、リチウム二次電池用の正極活物質または負極活物質である、請求項1に記載の電極の製造方法。
- 前記正極活物質は、LiCoO2,LiNiO2,LiMn2O4,LiCoPO4,LiFePO4及びLiNi1-x-y-zCoxM1yM2zO2(M1及びM2は、互いに独立してAl,Fe,Mn,V,Cr,Ti,W,Ta,Mg及びMoからなる群から選択された何れか1つであり、x,y及びzは、互いに独立して酸化物組成元素の原子分率として0≦x<0.5,0≦y<0.5,0≦z<0.5,0<x+y+z≦1である)からなる群から選択された何れか1つの活物質粒子またはこれらのうち2種以上の混合物を含む、請求項6に記載の電極の製造方法。
- 前記負極活物質は、天然黒鉛、人造黒鉛、炭素質材料;リチウム含有チタン複合酸化物(LTO),Si,Sn,Li,Zn,Mg,Cd,Ce,NiまたはFeである金属類(Me);前記金属類(Me)で構成された合金類;前記金属類(Me)の酸化物(MeOx);及び前記金属類(Me)と炭素との複合体からなる群から選択された何れか1つの活物質粒子またはこれらのうち2種以上の混合物を含む、請求項6に記載の電極の製造方法。
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| Application Number | Priority Date | Filing Date | Title |
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| KR10-2020-0024951 | 2020-02-28 | ||
| KR1020200024951A KR102203515B1 (ko) | 2020-02-28 | 2020-02-28 | 리튬 이차전지용 전극의 제조 방법 |
| PCT/KR2021/002063 WO2021172809A1 (ko) | 2020-02-28 | 2021-02-18 | 리튬 이차전지용 전극의 제조 방법 |
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| JP2023511234A JP2023511234A (ja) | 2023-03-16 |
| JP7446011B2 true JP7446011B2 (ja) | 2024-03-08 |
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| US (1) | US12494472B2 (ja) |
| EP (1) | EP4113658A4 (ja) |
| JP (1) | JP7446011B2 (ja) |
| KR (1) | KR102203515B1 (ja) |
| CN (1) | CN114982006B (ja) |
| WO (1) | WO2021172809A1 (ja) |
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| KR102203515B1 (ko) | 2020-02-28 | 2021-01-14 | 서울대학교산학협력단 | 리튬 이차전지용 전극의 제조 방법 |
| KR102879313B1 (ko) * | 2022-01-25 | 2025-10-31 | 서울대학교산학협력단 | 도공액 코팅 공정을 포함하는 리튬 이차전지용 전극의 제조 방법 |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006216288A (ja) | 2005-02-02 | 2006-08-17 | Sanyo Electric Co Ltd | 電極の製造方法 |
| JP2008041971A (ja) | 2006-08-08 | 2008-02-21 | Tomoegawa Paper Co Ltd | 電極製造方法、電極および電気化学素子 |
| WO2010035827A1 (ja) | 2008-09-29 | 2010-04-01 | 日本ゼオン株式会社 | 電気化学素子用電極の製造方法 |
| JP2013073685A (ja) | 2011-09-26 | 2013-04-22 | Toppan Printing Co Ltd | 非水電解液二次電池用電極、その製造方法、及び非水電解液二次電池 |
Family Cites Families (29)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3003444B2 (ja) * | 1993-02-09 | 2000-01-31 | 東洋インキ製造株式会社 | 平版インキの印刷特性改良方法およびその組成物 |
| KR100284892B1 (ko) * | 1998-10-02 | 2001-05-02 | 이종훈 | 슬러리 코팅법을 이용한 치밀막의 제조방법 |
| JP2004327183A (ja) * | 2003-04-23 | 2004-11-18 | Mitsubishi Electric Corp | 電池及びその製造方法 |
| JP4474634B2 (ja) * | 2003-08-28 | 2010-06-09 | 荒川化学工業株式会社 | 印刷インキ用樹脂組成物、印刷インキ用樹脂ワニス、これらの製造方法、および印刷インキ |
| CN100527496C (zh) * | 2004-06-21 | 2009-08-12 | 三菱丽阳株式会社 | 多孔质电极基材及其制造方法 |
| US7629071B2 (en) * | 2004-09-29 | 2009-12-08 | Giner Electrochemical Systems, Llc | Gas diffusion electrode and method of making the same |
| KR101286003B1 (ko) | 2006-03-09 | 2013-07-15 | 삼성에스디아이 주식회사 | 이차 전지의 전극 슬러리 건조 방법 및 장치 |
| KR101151931B1 (ko) * | 2007-03-30 | 2012-06-04 | 파나소닉 주식회사 | 비수전해질 이차전지용 활물질 및 그 제조법 |
| KR101147604B1 (ko) * | 2007-10-12 | 2012-05-23 | 주식회사 엘지화학 | 젤리-롤형 전극조립체의 변형을 억제하기 위한 제조방법 |
| JP4986166B2 (ja) * | 2008-05-08 | 2012-07-25 | 日立マクセルエナジー株式会社 | リチウム二次電池 |
| JP2011063891A (ja) * | 2009-09-15 | 2011-03-31 | Daizen:Kk | 小型連続抄紙機 |
| KR101198672B1 (ko) * | 2010-06-10 | 2012-11-12 | 현대자동차주식회사 | 이차전지용 전극의 제조방법, 이에 의해 제조되는 이차전지용 전극, 및 이를 포함하는 이차전지 |
| CN102439771B (zh) * | 2011-08-19 | 2014-04-09 | 香港应用科技研究院有限公司 | 用于锂离子电池的多孔导电活性复合电极 |
| JP5909986B2 (ja) | 2011-10-19 | 2016-04-27 | 日産自動車株式会社 | 電極乾燥方法、および電極乾燥装置 |
| KR101656326B1 (ko) * | 2013-03-27 | 2016-09-09 | 주식회사 엘지화학 | 애노드 활물질 슬러리, 그 슬러리를 이용한 애노드 및 그를 포함하는 전기화학소자 |
| KR20150034973A (ko) | 2013-09-27 | 2015-04-06 | 제일모직주식회사 | 건조장치 및 건조방법 |
| KR102124052B1 (ko) * | 2013-10-18 | 2020-06-17 | 삼성전자주식회사 | 양극 활물질, 그 제조방법 및 이를 포함한 양극을 구비한 리튬 전지 |
| US10153484B2 (en) * | 2013-10-31 | 2018-12-11 | Lg Chem, Ltd. | Anode active material and method of preparing the same |
| JP6291962B2 (ja) * | 2014-03-28 | 2018-03-14 | 東レ株式会社 | ガス拡散電極の製造方法および製造装置 |
| CN106133952B (zh) * | 2014-04-02 | 2018-09-25 | 丰田自动车株式会社 | 非水电解质二次电池 |
| JP6492583B2 (ja) * | 2014-11-28 | 2019-04-03 | 株式会社豊田自動織機 | 電極の製造方法 |
| KR101650710B1 (ko) * | 2016-01-18 | 2016-08-24 | 류수암 | 자연분해가 용이한 친환경 다기능 멀칭지 및 이의 제조방법 |
| KR102258829B1 (ko) | 2017-03-07 | 2021-06-07 | 주식회사 엘지에너지솔루션 | 전기 전도도가 향상된 리튬이차전지용 전극 및 그의 제조방법 |
| CN206787197U (zh) * | 2017-06-02 | 2017-12-22 | 江西云锂材料股份有限公司 | 一种锂电池正负极片切片后的干燥处理设备 |
| CN111066184B (zh) * | 2017-08-29 | 2023-05-30 | 住友金属矿山株式会社 | 非水系电解质二次电池用正极活性物质及其制造方法、以及使用该正极活性物质的非水系电解质二次电池 |
| JP6493703B1 (ja) | 2017-09-28 | 2019-04-03 | ウシオ電機株式会社 | 殺菌方法、殺菌装置 |
| KR102330108B1 (ko) * | 2017-12-01 | 2021-11-23 | 주식회사 엘지에너지솔루션 | 이차전지용 전극의 제조방법 |
| CN110364667B (zh) * | 2018-04-11 | 2022-04-22 | 宁德新能源科技有限公司 | 多孔膜和锂离子电池 |
| KR102203515B1 (ko) * | 2020-02-28 | 2021-01-14 | 서울대학교산학협력단 | 리튬 이차전지용 전극의 제조 방법 |
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- 2021-02-18 EP EP21760236.6A patent/EP4113658A4/en active Pending
- 2021-02-18 JP JP2022570089A patent/JP7446011B2/ja active Active
- 2021-02-18 WO PCT/KR2021/002063 patent/WO2021172809A1/ko not_active Ceased
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006216288A (ja) | 2005-02-02 | 2006-08-17 | Sanyo Electric Co Ltd | 電極の製造方法 |
| JP2008041971A (ja) | 2006-08-08 | 2008-02-21 | Tomoegawa Paper Co Ltd | 電極製造方法、電極および電気化学素子 |
| WO2010035827A1 (ja) | 2008-09-29 | 2010-04-01 | 日本ゼオン株式会社 | 電気化学素子用電極の製造方法 |
| JP2013073685A (ja) | 2011-09-26 | 2013-04-22 | Toppan Printing Co Ltd | 非水電解液二次電池用電極、その製造方法、及び非水電解液二次電池 |
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| CN114982006B (zh) | 2024-06-21 |
| US12494472B2 (en) | 2025-12-09 |
| KR102203515B1 (ko) | 2021-01-14 |
| WO2021172809A1 (ko) | 2021-09-02 |
| JP2023511234A (ja) | 2023-03-16 |
| EP4113658A4 (en) | 2024-11-20 |
| US20230078014A1 (en) | 2023-03-16 |
| CN114982006A (zh) | 2022-08-30 |
| EP4113658A1 (en) | 2023-01-04 |
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