Anode and process for manufacturing same

Patent metadata

Field	Value
Publication number	US-2016201205-A1
Application number	US-201414909830-A
Country	US
Kind code	A1
Filing date	Jul 23, 2014
Priority date	Aug 13, 2013
Publication date	Jul 14, 2016
Grant date	—

Abstract

The present invention controls a temperature rise due to resistance in electrolysis, and prevents an anode from falling off A holding member is attached in surface contact with one side of an electrode plate made of a low melting metal or a low melting alloy having a melting point of not less than 100° C. and not more than 250° C., the holding member having a length equal to or longer than the length of said one side and being made of a metal or an alloy having a melting point higher than the melting point of the electrode plate.

First claim

1 . An anode, wherein a holding member is attached in surface contact with a vicinity of one side of at least one major surface of an electrode plate, the electrode plate being made of a low melting metal or a low melting alloy having a melting point of not less than 100° C. and not more than 250° C., the holding member having a length equal to or longer than a length of said one side and being made of a metal or an alloy having a melting point higher than the melting point of the electrode plate.

2 . The anode according to claim 1 ,
wherein the holding member comprises: an electrode plate holding member configured to hold the electrode plate; and conductive connecting members configured to electrically connect the electrode plate to the electrode plate holding member and formed in a shape of a plate, and wherein sides of a connection portion at which the electrode plate and the electrode plate holding member are connected are sandwiched by the two conductive connecting members, and tightening of a bolt passing through the electrode plate, the electrode plate holding member, and the two conductive connecting members so as to unite the electrode plate, the electrode plate holding member, and the two conductive connecting members allows the electrode plate and the electrode plate holding member to be electrically connected via the conductive connecting members.

3 . The anode according to claim 2 , wherein, in the electrode plate, a portion through which the bolt is passed comprises a through-hole or a groove portion.

4 . The anode according to claim 1 , wherein the electrode plate has a thickness of not less than 2 mm and not more than 15 mm The anode according to claim 1 , wherein the low melting metal is indium or tin.

6 . The anode according to claim 1 , wherein the holding member is made of copper.

7 . The anode according to claim 1 , wherein a surface of the holding member is coated with a metal that is resistant to corrosion by an electrolytic solution for electrolysis.

8 . A process for manufacturing an anode, wherein a low melting metal or a low melting alloy having a melting point of not less than 100° C. and not more than 250° C. is cooled and solidified in a mold, a solidified low melting metal or a solidified low melting alloy is taken out of the mold to obtain an electrode plate, and a holding member is attached in surface contact with a vicinity of one side of at least one major surface of the obtained electrode plate, whereby the anode is obtained, the holding member having a length equal to or longer than the length of said one side and being made of a metal or an alloy having a melting point higher than the melting point of the electrode plate.

9 . The process for manufacturing the anode according to claim 8 , further comprising:
inserting a bar into a portion corresponding to the vicinity of the one side of the major surface of the electrode plate in a state in which a low melting metal or a low melting alloy in the mold is molten, and forming the electrode plate so that said inserted bar portion serves as a through-hole; forming a through-hole in an end portion of an electrode plate holding member being a constituent of the holding member and configured to hold the electrode plate; sandwiching side faces of a connection portion between the electrode plate and the electrode plate holding member by two conductive connecting members, the conductive connecting members being in a shape of a plate having a through-hole formed at a position facing the through-holes of the electrode plate and the electrode plate holding member, being a constituent of the holding member, and being configured to electrically connect the electrode plate to the electrode plate holding member; and passing a bolt through the through-hole of the electrode plate, the through-hole of the electrode plate holding member, and the through-holes of the two conductive connecting members, and tightening the bolt to unite the electrode plate, the electrode plate holding member, and the two conductive connecting members, and electrically connecting the electrode plate holding member to the electrode plate by the conductive connecting members.

10 . The process for manufacturing the anode according to claim 8 , wherein the mold is made of graphite carbon.

11 . The process for manufacturing the anode according to claim 9 , wherein the bar is made of polytetrafluoroethylene.

12 . The process for manufacturing the anode according to claim 8 , further comprising:
forming the electrode plate by using the mold having a projection portion projected from an inner wall so that, around a perimeter of the electrode plate, the electrode plate has a groove portion formed by said projection portion; forming a through-hole in an end portion of an electrode plate holding member, the electrode plate holding member being a constituent of the holding member and being configured to hold the electrode plate; sandwiching side faces of a connection portion between the electrode plate and the electrode plate holding member by two conductive connecting members, the conductive connecting members being in a shape of a plate having a through-hole formed at a position facing the groove potion of the electrode plate and the through-hole of the electrode plate holding member, being a constituent of the holding member, and being configured to electrically connect the electrode plate to the electrode plate holding member; and passing a bolt through the groove portion of the electrode plate, the through-hole of the electrode plate holding member, and the through-holes of the two conductive connecting members, and tightening the bolt to unite the electrode plate, the electrode plate holding member, and the two conductive connecting members, and electrically connecting the electrode plate holding member to the electrode plate by the conductive connecting members.

Assignees

• Sumitomo Metal Mining Co

Inventors

• Sugamoto Noriaki
• Kibe Tatsuo
• Kamo Tetsuro
• Iwasa Tsuyoshi
• Kawakami Tetsuji
• Takada Kou
• Morimoto Toshio

Classifications

• C25B1/00

  Electrolytic production of inorganic compounds or non-metals · CPC title

• C25B9/02 Primary

  Chemistry & Metallurgy · mapped topic

• C25B11/04

  characterised by the material · CPC title

• C25B11/046

  Alloys · CPC title

• C25B11/042

  Electrodes formed of a single material · CPC title