CLADDING MATERIAL FOR LEADS AND METHOD OF WELDING CLADDING MATERIAL FOR LEADS

• US 20120292294A1
• Filed: 08/02/2012
• Published: 11/22/2012
• Est. Priority Date: 02/15/2010
• Status: Abandoned Application

• Current Assignee: Neomax Materials Co., Ltd. (Proterial Ltd.)
• Original Assignee: Neomax Materials Co., Ltd. (Proterial Ltd.)
• Inventors: Oda, Yoshimitsu, Ishio, Masaaki
• Application Number:
  US13/564,942
• Publication Number:
  US 20120292294A1
• Time in Patent Office: Days
• US Class Current: 219/118
• CPC Class Codes: B23K 11/20 of different metals
• CPC Class Codes: B23K 35/3033 Ni as the principal constituent
• CPC Class Codes: B32B 15/012 one layer being formed of an iron alloy or steel, another layer being formed of aluminium or an aluminium alloy
• CPC Class Codes: B32B 15/015 the said other metal being copper or nickel or an alloy thereof
• CPC Class Codes: C22C 38/08 containing nickel C22C38/105 takes precedence
• CPC Class Codes: H01M 10/46 Accumulators structurally combined with charging apparatus circuits for charging H02J7/00
• CPC Class Codes: H01M 50/51 Connection only in series
• CPC Class Codes: H01M 50/516 by welding, soldering or brazing
• CPC Class Codes: H01M 50/522 Inorganic material
• CPC Class Codes: H01M 50/528 Fixed electrical connections, i.e. not intended for disconnection
• CPC Class Codes: H01M 50/571 Methods or arrangements for affording protection against corrosion; Selection of materials therefor
• CPC Class Codes: Y02E 60/10 Energy storage using batteries
• CPC Class Codes: Y10T 428/12937 Co- or Ni-base component next to Fe-base component

Abstract

A cladding material for a lead capable of inhibiting foreign matter from remaining on a surface can be obtained. The cladding material (1) is a cladding material for a lead welded to a terminal (21, 22) of a battery (2) and comprises a first Ni layer (11) arranged on a side welded to the terminal of said battery, a second Ni layer (12) arranged on a side opposite to said welded side and an Fe layer (10) arranged to be held between said first Ni layer and said second Ni layer. The thickness of the first Ni layer is at least 2.1% and not more than 8.2% of the thickness of said cladding material consisting of the first Ni layer, the second Ni layer and the Fe layer.

Claims

1. A cladding material (1) for a lead welded to a terminal (21, 22) of a battery (2), comprising:

a first Ni layer (11) arranged on a side welded to the terminal of said battery;

a second Ni layer (12) arranged on a side opposite to said welded side; and

an Fe layer (10) arranged to be held between said first Ni layer and said second Ni layer, wherein

the thickness of said first Ni layer is at least 2.1% and not more than 8.2% of the thickness of said cladding material consisting of said first Ni layer, said second Ni layer and said Fe layer.

2. The cladding material for a lead according to claim 1, wherein

the thickness of said first Ni layer is at least 3.1% and not more than 7.5% of the thickness of said cladding material.

3. The cladding material for a lead according to claim 1, wherein

the thickness of said first Ni layer is at least 2.1 μ

m and not more than 20.5 μ

m.

4. The cladding material for a lead according to claim 1, wherein

the thickness of said first Ni layer and the thickness of said second Ni layer are substantially equal to each other.

5. The cladding material for a lead according to claim 1, wherein

the thickness of said second Ni layer is at least 1.3% and not more than 8.4% of the thickness of said cladding layer.

6. The cladding material for a lead according to claim 1, wherein

said first Ni layer is formed to be welded to a surface of an Ni layer (21b, 22b) of the terminal of said battery including said Ni layer.

7. A method of welding a cladding material for a lead by resistance-welding a cladding material (1) including a first Ni layer (11), a second Ni layer (12) and an Fe layer (10) arranged to be held between said first Ni layer and said second Ni layer, wherein the thickness of said first Ni layer is at least 2.1% and not more than 8.2% of the thickness of said cladding material consisting of said first Ni layer, said second Ni layer and said Fe layer, to a terminal (21, 22) of a battery (2), comprising the steps of:

arranging said cladding material on the terminal of said battery so that said first Ni layer is positioned on the side of the terminal of said battery; and

resistance-welding said first Ni layer to the terminal of said battery by feeding electricity to an electrode (4a) for resistance welding in a state of arranging the electrode on the side of said second Ni layer opposite to the side where the terminal of said battery is positioned.

8. The method of welding a cladding material for a lead according to claim 7, wherein

the thickness of said first Ni layer is at least 3.1% and not more than 7.5% of the thickness of said cladding material.