[특허]Connection plate for battery terminals and method for manufacturing connection plate for battery terminals

NEOMAX MATERIALS CO., LTD.

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특허 상세정보

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Connection plate for battery terminals and method for manufacturing connection plate for battery terminals

특허상세정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	H01M-002/20 H01R-011/11 H01M-010/0525
출원번호	US-0981768 (2012-01-19)
등록번호	US-9350007 (2016-05-24)
우선권정보	JP-2011-015054 (2011-01-27)
국제출원번호	PCT/JP2012/051046 (2012-01-19)
§371/§102 date	20130725 (20130725)
국제공개번호	WO2012/102160 (2012-08-02)
발명자 / 주소	Oda, Yoshimitsu Yamamoto, Masaharu Ishio, Masaaki
출원인 / 주소	NEOMAX MATERIALS CO., LTD.
대리인 / 주소	Westerman, Hattori, Daniels & Adrian, LLP
인용정보	피인용 횟수 : 0 인용 특허 : 5

초록
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A connection plate for battery terminals capable of inhibiting a first member and a second member from being detached from each other is provided. This bus bar 2 (connection plate for battery terminals) includes a first member (3) including a first hole (30) and an embedding hole (31), made of first metal and a second member (4) having a second hole (42), including a base (40) made of second metal, embedded in the embedding hole of the first member, while an intermetallic compound layer (5) containing at least one of the first metal and the second metal ...

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1. A connection plate for battery terminals, comprising: a first member including a first hole into which a first battery terminal made of first metal is inserted and an embedding through hole, the first member being made of the first metal; anda second member having a second hole into which a second battery terminal made of second metal different from the first metal is inserted, including a base made of the second metal, the second member being embedded inside the embedding through hole of the first member,wherein an intermetallic compound layer made of an intermetallic compound containing at least one of the first metal and the second metal is formed on an interface between the embedding through hole of the first member and the second member. 2. The connection plate for battery terminals according to claim 1, wherein the first metal is one of Al and Cu,the second metal is the other of Al and Cu, andthe intermetallic compound of the intermetallic compound layer contains at least Al. 3. The connection plate for battery terminals according to claim 1, wherein the second member further includes a coating layer arranged on at least an interface with the first member on a surface of the base, made of third metal different from the first metal and the second metal, andthe intermetallic compound of the intermetallic compound layer has bonding strength between the first member and the second member larger than that of an intermetallic compound containing the first metal and the second metal and contains either the first metal or the second metal and the third metal. 4. The connection plate for battery terminals according to claim 3, wherein the third metal comprises metal having an ionization tendency higher than that of one of the first metal and the second metal and lower than that of the other of the first metal and the second metal. 5. The connection plate for battery terminals according to claim 4, wherein the first metal is one of Al and Cu,the second metal is the other of Al and Cu,the third metal is Ni, andthe intermetallic compound of the intermetallic compound layer contains Al and Ni. 6. The connection plate for battery terminals according to claim 1, wherein the first member and the second member are made of rectangular plate materials having long sides extending in an identical direction and short sides extending in an identical direction in a plan view, andthe long side and the short side of the second member are shorter than the long side and the short side of the first member, respectively. 7. The connection plate for battery terminals according to claim 1, wherein the embedding through hole of the first member has a circular shape in a plan view, andthe second member has a columnar shape having the second hole. 8. The connection plate for battery terminals according to claim 1, wherein the second member has a frustoconical shape having the second hole, andthe embedding through hole of the first member has a shape corresponding to the frustoconical shape of the second member. 9. The connection plate for battery terminals according to claim 1, wherein the embedding through hole of the first member is so configured that an open width thereof varies from a first surface of the first member toward a second surface thereof. 10. The connection plate for battery terminals according to claim 9, wherein the embedding through hole of the first member is so configured that the open width thereof gradually reduces from the first surface of the first member toward the second surface thereof. 11. The connection plate for battery terminals according to claim 9, wherein the embedding through hole of the first member is so configured that the open width thereof reduces from the first surface and the second surface of the first member toward a substantially central portion of the first member in a thickness direction. 12. The connection plate for battery terminals according to claim 1, wherein the embedding through hole of the first member has a substantially circular shape in a plan view,the second member has a cylindrical shape and is formed with a screw portion on an outer surface of the second member in contact with the embedding through hole, andthe screw portion of the second member is embedded to be screwed to an inner surface of the embedding through hole of the first member. 13. A method for manufacturing a connection plate for battery terminals of claim 1, comprising steps of: providing a first hole into which a first battery terminal made of first metal is inserted and an embedding through hole in which a second member including a base made of second metal different from the first metal is embedded in a first member made of metal identical to the first metal;embedding the second member inside the embedding through hole of the first member;providing a second hole into which a second battery terminal made of metal identical to the second metal is inserted in the second member; andforming an intermetallic compound layer made of an intermetallic compound containing at least one of the first metal and the second metal on an interface between the embedding through hole of the first member and the second member by diffusion annealing. 14. The method for manufacturing a connection plate for battery terminals according to claim 13, wherein the step of providing the second hole in the second member is performed after the step of embedding the second member inside the embedding through hole of the first member. 15. The method for manufacturing a connection plate for battery terminals according to claim 13, further comprising a step of forming a coating layer on at least an outer surface of the base of the second member by plating third metal different from the first metal and the second metal on at least the outer surface of the base before the step of embedding the second member in the embedding through hole of the first member, wherein the step of forming the intermetallic compound layer includes a step of forming the intermetallic compound layer made of an intermetallic compound having bonding strength between the first member and the second member larger than that of an intermetallic compound containing the first metal and the second metal and containing either the first metal or the second metal and the third metal on an interface between the embedding through hole of the first member and the outer surface of the second member by diffusion annealing. 16. The method for manufacturing a connection plate for battery terminals according to claim 13, wherein the step of embedding the second member in the embedding through hole of the first member includes a step of pressing the second member into the embedding through hole of the first member by applying a pressure to the second member from above in a state where the second member is arranged over the embedding through hole of the first member. 17. The method for manufacturing a connection plate for battery terminals according to claim 13, wherein the step of providing the first hole and the embedding through hole in the first member includes a step of providing the embedding through hole in the first member such that the embedding through hole is substantially circular in a plan view, andthe step of embedding the second member in the embedding through hole of the first member includes a step of embedding the second member in the embedding through hole of the first member by screwing the second member having a cylindrical shape, formed with a screw portion on an outer surface thereof to an inner surface of the embedding through hole of the first member while rotating the second member. 18. The method for manufacturing a connection plate for battery terminals according to claim 13, further comprising a step of preparing the second member having a columnar shape with a first diameter, wherein the step of providing the first hole and the embedding through hole in the first member includes a step of forming the embedding through hole of the first member in a circular shape having a second diameter smaller than the first diameter of the second member, andthe step of embedding the second member inside the embedding through hole of the first member includes a step of pressing the second member into the embedding through hole of the first member. 19. The method for manufacturing a connection plate for battery terminals according to claim 18, wherein the step of forming the embedding through hole of the first member in the circular shape having the second diameter has a step of forming the embedding through hole of the first member such that the second diameter is at least 0.2 mm and not more than 1.0 mm less than the first diameter. 20. The method for manufacturing a connection plate for battery terminals according to claim 13, further comprising a step of preparing the second member in a frustoconical shape having a first surface with a third diameter and a second surface with a fourth diameter smaller than the third diameter, wherein the step of providing the first hole and the embedding through hole in the first member includes a step of forming the embedding through hole of the first member in a circular shape having a fifth diameter smaller than the third diameter of the first surface of the second member, andthe step of embedding the second member inside the embedding through hole of the first member includes a step of pressing the second member into the embedding through hole of the first member from a side of the second surface of the second member.

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Connection plate for battery terminals and method for manufacturing connection plate for battery terminals

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Connection plate for battery terminals and method for manufacturing connection plate for battery terminals

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