JP6025711B2 - クロメート皮膜付負極集電体用銅箔の製造方法及びそのクロメート皮膜付負極集電体用銅箔を用いたリチウムイオン二次電池の負極材の製造方法 - Google Patents
クロメート皮膜付負極集電体用銅箔の製造方法及びそのクロメート皮膜付負極集電体用銅箔を用いたリチウムイオン二次電池の負極材の製造方法 Download PDFInfo
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- C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C22/05—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
- C23C22/06—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6
- C23C22/24—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6 containing hexavalent chromium compounds
- C23C22/30—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6 containing hexavalent chromium compounds containing also trivalent chromium
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- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/64—Carriers or collectors
- H01M4/66—Selection of materials
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
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- C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C22/05—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
- C23C22/06—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6
- C23C22/24—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6 containing hexavalent chromium compounds
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- C—CHEMISTRY; METALLURGY
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- C25D1/00—Electroforming
- C25D1/04—Wires; Strips; Foils
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D11/00—Electrolytic coating by surface reaction, i.e. forming conversion layers
- C25D11/38—Chromatising
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D9/00—Electrolytic coating other than with metals
- C25D9/04—Electrolytic coating other than with metals with inorganic materials
- C25D9/08—Electrolytic coating other than with metals with inorganic materials by cathodic processes
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- H—ELECTRICITY
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- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/64—Carriers or collectors
- H01M4/66—Selection of materials
- H01M4/661—Metal or alloys, e.g. alloy coatings
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
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- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/64—Carriers or collectors
- H01M4/66—Selection of materials
- H01M4/665—Composites
- H01M4/667—Composites in the form of layers, e.g. coatings
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- 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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- 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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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
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- Inorganic Chemistry (AREA)
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- Cell Electrode Carriers And Collectors (AREA)
- Battery Electrode And Active Subsutance (AREA)
- Other Surface Treatments For Metallic Materials (AREA)
Description
本件出願に係る製造方法によって製造されるクロメート皮膜付負極集電体用銅箔は、リチウムイオン二次電池の負極集電体に用いる浸漬クロメート処理法で形成したクロメート皮膜を備える銅箔である。そして、以下の点に特徴を備える。
ここでは、実施例の浸漬クロメート処理を、電解クロメート処理に変更して参考試料を得た。実施例で用いた電解銅箔の表面に電解クロメート処理を施すときの電解条件として、クロム濃度が3.6g/l、pH12.5の溶液を用いて、液温40℃、電流密度2.37A/dm2、処理時間1.5秒、後水洗有りの条件を採用してクロメート処理層を形成し、これを参考試料とした。これらは表2に纏めて製造条件等の一覧として示す。
本件出願で言う「耐酸化性能」とは、銅箔に対して、恒温恒湿試験(温度50℃、湿度95%)を行い、その恒温恒湿試験の前後の酸化物量をGD−OESで評価している。このときの酸化物量の測定方法を具体的に述べる。GD−OESで酸素の発光強度の深さ方向プロファイルを測定する。グロー放電時間3秒〜4秒の平均発光強度を基準として、各測定時間における発光強度から平均発光強度を引き、0秒〜4秒までの間の発光強度を積算することで酸化物量としている。即ち、「シグナルの積分強度の値」=「酸化物量」であり、この値が4.5以下の領域を酸化されていないとした。
上記表3を参照して、実施例と比較例との対比を行う。この表3から明らかなように、比較試料に比べて、実施試料1〜実施試料3及び参考試料は、いずれも恒温恒湿試験前の状態でも、酸化レベルが低いことが理解できる。
Claims (5)
- リチウムイオン二次電池の負極集電体に用いるクロメート皮膜を備える銅箔の製造方法において、
浸漬クロメート処理法により、銅箔の表面に水酸化クロムを85面積%以上含有するクロメート皮膜を形成することを特徴とするクロメート皮膜付負極集電体用銅箔の製造方法。 - 前記クロメート皮膜は、XAFS解析で得られる当該クロメート皮膜中のクロムの最近接酸素のみかけの配位数Nが4.5以上である請求項1に記載のクロメート皮膜付負極集電体用銅箔の製造方法。
- 前記クロメート皮膜は、XAFS解析で得られる当該クロメート皮膜のクロムのK吸収端XAFSスペクトルの規格化プレエッジピークの高さが0.08以下である請求項1又は請求項2に記載のクロメート皮膜付負極集電体用銅箔の製造方法。
- 前記クロメート皮膜は、クロム換算での付着量が1.0mg/m2〜3.9mg/m2である請求項1〜請求項3のいずれかに記載のクロメート皮膜付負極集電体用銅箔の製造方法。
- 請求項1〜請求項4のいずれかに記載の製造方法によって製造されたクロメート皮膜付負極集電体用銅箔の片面又は両面に負極活物質層を形成することを特徴とするリチウムイオン二次電池の負極材の製造方法。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2011088510 | 2011-04-12 | ||
JP2011088510 | 2011-04-12 | ||
PCT/JP2012/059805 WO2012141178A1 (ja) | 2011-04-12 | 2012-04-10 | クロメート皮膜付負極集電体用銅箔及びそのクロメート皮膜付負極集電体用銅箔を用いた負極材 |
Publications (2)
Publication Number | Publication Date |
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JPWO2012141178A1 JPWO2012141178A1 (ja) | 2014-07-28 |
JP6025711B2 true JP6025711B2 (ja) | 2016-11-16 |
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JP2013509930A Active JP6025711B2 (ja) | 2011-04-12 | 2012-04-10 | クロメート皮膜付負極集電体用銅箔の製造方法及びそのクロメート皮膜付負極集電体用銅箔を用いたリチウムイオン二次電池の負極材の製造方法 |
Country Status (5)
Country | Link |
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US (1) | US20140127569A1 (ja) |
JP (1) | JP6025711B2 (ja) |
KR (1) | KR101543521B1 (ja) |
TW (1) | TWI476985B (ja) |
WO (1) | WO2012141178A1 (ja) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2017075347A (ja) * | 2015-10-13 | 2017-04-20 | 株式会社Jcu | 電解クロメート処理液およびこれを用いためっきの表面処理方法 |
JP6185679B1 (ja) * | 2015-10-27 | 2017-08-23 | 山本 修 | クロム修飾型インプラント及びその製造方法 |
KR20180022208A (ko) | 2016-08-23 | 2018-03-06 | 엘에스엠트론 주식회사 | 전해동박, 그것을 포함하는 전극, 그것을 포함하는 이차전지, 및 그것의 제조방법 |
JP6925109B2 (ja) * | 2016-09-02 | 2021-08-25 | 株式会社エンビジョンAescジャパン | リチウムイオン二次電池用電極接合体 |
JP7408541B2 (ja) * | 2017-09-21 | 2024-01-05 | アプライド マテリアルズ インコーポレイテッド | リチウムアノードデバイススタック製造 |
JP7121910B2 (ja) * | 2019-01-15 | 2022-08-19 | トヨタ自動車株式会社 | 負極 |
US11631840B2 (en) | 2019-04-26 | 2023-04-18 | Applied Materials, Inc. | Surface protection of lithium metal anode |
US10697082B1 (en) * | 2019-08-12 | 2020-06-30 | Chang Chun Petrochemical Co., Ltd. | Surface-treated copper foil |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH11273683A (ja) * | 1998-03-19 | 1999-10-08 | Furukawa Electric Co Ltd:The | 非水溶媒二次電池の負極集電体用銅箔、およびその製造方法 |
WO2001045183A1 (fr) * | 1999-12-17 | 2001-06-21 | Dai Nippon Printing Co., Ltd | Materiau d'emballage d'une cellule polymere et procede de production associe |
JP2008117655A (ja) * | 2006-11-06 | 2008-05-22 | Sony Corp | 非水電解質二次電池用負極集電体及び非水電解質二次電池 |
JP2009068042A (ja) * | 2007-09-11 | 2009-04-02 | Furukawa Circuit Foil Kk | 超音波溶接性に優れた銅箔、およびその表面処理方法 |
WO2012091060A1 (ja) * | 2010-12-27 | 2012-07-05 | 古河電気工業株式会社 | リチウムイオン二次電池、その二次電池用電極、その二次電池の電極用電解銅箔 |
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2012
- 2012-04-10 JP JP2013509930A patent/JP6025711B2/ja active Active
- 2012-04-10 US US14/110,778 patent/US20140127569A1/en not_active Abandoned
- 2012-04-10 WO PCT/JP2012/059805 patent/WO2012141178A1/ja active Application Filing
- 2012-04-10 KR KR1020137029595A patent/KR101543521B1/ko active IP Right Grant
- 2012-04-11 TW TW101112768A patent/TWI476985B/zh active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH11273683A (ja) * | 1998-03-19 | 1999-10-08 | Furukawa Electric Co Ltd:The | 非水溶媒二次電池の負極集電体用銅箔、およびその製造方法 |
WO2001045183A1 (fr) * | 1999-12-17 | 2001-06-21 | Dai Nippon Printing Co., Ltd | Materiau d'emballage d'une cellule polymere et procede de production associe |
JP2008117655A (ja) * | 2006-11-06 | 2008-05-22 | Sony Corp | 非水電解質二次電池用負極集電体及び非水電解質二次電池 |
JP2009068042A (ja) * | 2007-09-11 | 2009-04-02 | Furukawa Circuit Foil Kk | 超音波溶接性に優れた銅箔、およびその表面処理方法 |
WO2012091060A1 (ja) * | 2010-12-27 | 2012-07-05 | 古河電気工業株式会社 | リチウムイオン二次電池、その二次電池用電極、その二次電池の電極用電解銅箔 |
Also Published As
Publication number | Publication date |
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KR20130137708A (ko) | 2013-12-17 |
TWI476985B (zh) | 2015-03-11 |
TW201246676A (en) | 2012-11-16 |
KR101543521B1 (ko) | 2015-08-10 |
JPWO2012141178A1 (ja) | 2014-07-28 |
WO2012141178A1 (ja) | 2012-10-18 |
US20140127569A1 (en) | 2014-05-08 |
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