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1. CN104955988 - Electrolytic copper foil, processes for producing said electrolytic copper foil, and surface-treated copper foil obtained using said electrolytic copper foil

官庁
中華人民共和国
出願番号 201480006759.9
出願日 30.01.2014
公開番号 104955988
公開日 30.09.2015
特許番号 104955988
特許付与日 30.01.2018
公報種別 B
IPC
C25D 1/04
C化学;冶金
25電気分解または電気泳動方法;そのための装置
D電気分解または電気泳動による被覆方法;電鋳;電気分解による加工品の接合;そのための装置
1電鋳
04線状体;ストリップ;箔
C25D 1/00
C化学;冶金
25電気分解または電気泳動方法;そのための装置
D電気分解または電気泳動による被覆方法;電鋳;電気分解による加工品の接合;そのための装置
1電鋳
CPC
C25D 1/04
CCHEMISTRY; METALLURGY
25ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
DPROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
1Electroforming
04Wires; Strips; Foils
C25D 3/38
CCHEMISTRY; METALLURGY
25ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
DPROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
3Electroplating: Baths therefor
02from solutions
38of copper
C25D 3/02
CCHEMISTRY; METALLURGY
25ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
DPROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
3Electroplating: Baths therefor
02from solutions
C25D 7/0614
CCHEMISTRY; METALLURGY
25ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
DPROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
7Electroplating characterised by the article coated
06Wires; Strips; Foils
0614Strips or foils
出願人 三井金属矿业株式会社
発明者 朝长咲子
三宅行一
穗积和贵
中原弘明
柴田泰宏
代理人 北京律诚同业知识产权代理有限公司 11006
優先権情報 2013-017620 31.01.2013 JP
発明の名称
(EN) Electrolytic copper foil, processes for producing said electrolytic copper foil, and surface-treated copper foil obtained using said electrolytic copper foil
(ZH) 电解铜箔、该电解铜箔的制造方法及用该电解铜箔得到的表面处理铜箔
要約
(EN) A purpose of the present invention is to provide an electrolytic copper foil which is superior in physical properties after high-temperature heating to conventional electrolytic copper foils and which is suitable also as the negative-electrode current collector of a lithium-ion secondary battery. The electrolytic copper foil is characterized by having an original-state tensile strength of 600 MPa or higher and a tensile strength after 350 DEG C*1 hour heating of 470 MPa or higher. Also provided is a process for producing the electrolytic copper foil, characterized by using an electrolytic copper solution acidified with sulfuric acid, the solution containing polyethyleneimine with a molecular weight of 10,000-70,000 in a concentration of 20-100 mg/L and having a chlorine concentration of 0.5-2.5 mg/L.
(ZH) 本发明的目的是提供超过现有的电解铜箔的、高温加热后的物理特性优异并适用于锂离子二次电池的负极集电体用途的电解铜箔。为了实现该目的,本发明采用一种电解铜箔,其特征在于,常态拉伸强度为600MPa以上,350℃×1小时加热后的拉伸强度为470MPa以上。并且,作为该电解铜箔的制造方法,其特征在于,采用以20mg/L~100mg/L的浓度含有分子量为10000~70000的聚乙烯亚胺、且氯浓度为0.5mg/L~2.5mg/L的硫酸酸性铜电解液。