JP2013073745A5 - - Google Patents

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Publication number
JP2013073745A5
JP2013073745A5 JP2011210997A JP2011210997A JP2013073745A5 JP 2013073745 A5 JP2013073745 A5 JP 2013073745A5 JP 2011210997 A JP2011210997 A JP 2011210997A JP 2011210997 A JP2011210997 A JP 2011210997A JP 2013073745 A5 JP2013073745 A5 JP 2013073745A5
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Japan
Prior art keywords
connection terminal
external terminal
contact surface
secondary battery
terminal
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JP2011210997A
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Japanese (ja)
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JP5628127B2 (en
JP2013073745A (en
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Priority to JP2011210997A priority Critical patent/JP5628127B2/en
Priority claimed from JP2011210997A external-priority patent/JP5628127B2/en
Priority to PCT/JP2012/068295 priority patent/WO2013046873A1/en
Publication of JP2013073745A publication Critical patent/JP2013073745A/en
Publication of JP2013073745A5 publication Critical patent/JP2013073745A5/ja
Application granted granted Critical
Publication of JP5628127B2 publication Critical patent/JP5628127B2/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Claims (12)

集電板を介して蓄電要素の電極に接続される接続端子と、
前記接続端子と電気的に接続され、且つバスバーと当接されるバスバー当接面を有する外部端子と、
前記外部端子の前記バスバー当接面でバスバーを締付固定するために、前記バスバー当接面から電池缶の外側へ向かって突出しているボルトと、を備え、
前記外部端子に、前記外部端子および前記接続端子に比して高強度の金属からなる前記ボルトを保持させており、
前記外部端子と前記接続端子はそれぞれ、平面視で同一の形状を備え、前記外部端子の前記バスバー当接面と直交する方向に延在している側端面を有し、
前記外部端子は、前記バスバー当接面と対向する面に前記接続端子と当接する接続端子当接面を有し、
前記外部端子と前記接続端子とは、前記接続端子当接面で当接された姿勢で、前記側端面の前記外部端子と前記接続端子との境界部で溶接接合されていることを特徴とする二次電池。 A connection terminal connected to the electrode of the electricity storage element via a current collector plate;
An external terminal that is electrically connected to the connection terminal and has a bus bar abutting surface that abuts against the bus bar;
A bolt projecting from the bus bar contact surface toward the outside of the battery can in order to fasten and fix the bus bar at the bus bar contact surface of the external terminal,
The external terminal holds the bolt made of a metal having a higher strength than the external terminal and the connection terminal,
Each of the external terminal and the connection terminal has the same shape in plan view, and has a side end surface extending in a direction orthogonal to the bus bar contact surface of the external terminal,
The external terminal has a connection terminal contact surface that contacts the connection terminal on a surface facing the bus bar contact surface,
The external terminal and the connection terminal are welded together at a boundary portion between the external terminal and the connection terminal on the side end surface in a posture in which the external terminal and the connection terminal are in contact with each other at the connection terminal contact surface. Secondary battery. 前記外部端子と前記接続端子とは同種金属からなることを特徴とする請求項１に記載の二次電池。   The secondary battery according to claim 1, wherein the external terminal and the connection terminal are made of the same metal. 前記外部端子と前記接続端子とは、前記側端面の全周で溶接接合されていることを特徴とする請求項１または２に記載の二次電池。   The secondary battery according to claim 1, wherein the external terminal and the connection terminal are welded together around the entire circumference of the side end surface. 前記ボルトは、その基端部にフランジ部を有し、
前記接続端子は、その上端部に前記フランジ部を受け入れるために少なくとも該フランジ部の底面および側面と相補的な形状を呈する凹部を備えた受け部を有し、
前記外部端子は、前記接続端子の前記凹部の上方に、前記フランジ部の外径よりも小さく、前記ボルトのねじ部の外形よりも小さい寸法からなる貫通孔を有し、
前記フランジ部が前記凹部に配置されて前記ねじ部が前記貫通孔を貫通した姿勢で前記外部端子と前記接続端子とが溶接接合され、
前記ボルトの前記フランジ部が前記外部端子と前記接続端子とで保持されていることを特徴とする請求項１から３のいずれか一項に記載の二次電池。 The bolt has a flange portion at its proximal end,
The connection terminal has a receiving portion having a recess having a shape complementary to at least a bottom surface and a side surface of the flange portion in order to receive the flange portion at an upper end portion thereof,
The external terminal has a through hole having a size smaller than the outer diameter of the flange portion and smaller than the outer shape of the screw portion of the bolt above the concave portion of the connection terminal,
The external terminal and the connection terminal are welded and joined in a posture in which the flange portion is disposed in the concave portion and the screw portion penetrates the through hole,
The secondary battery according to any one of claims 1 to 3, wherein the flange portion of the bolt is held by the external terminal and the connection terminal. 前記フランジ部の底面および前記凹部の底面は、平面視で多角形状を呈していることを特徴とする請求項４に記載の二次電池。   5. The secondary battery according to claim 4, wherein the bottom surface of the flange portion and the bottom surface of the recess have a polygonal shape in plan view. 前記外部端子の前記接続端子と当接する接続端子当接面は、その側端部が中心部よりも突出した凹形状を呈しており、
前記接続端子の前記外部端子と当接する外部端子当接面は、前記接続端子当接面と相補的な形状を呈しており、
前記外部端子の前記接続端子当接面と前記接続端子の前記外部端子当接面とが嵌合されて、前記外部端子と前記接続端子とが溶接接合されていることを特徴とする請求項１から５のいずれか一項に記載の二次電池。 The connection terminal contact surface that contacts the connection terminal of the external terminal has a concave shape whose side end portion protrudes from the center portion,
The external terminal contact surface that contacts the external terminal of the connection terminal has a shape complementary to the connection terminal contact surface,
2. The connection terminal contact surface of the external terminal and the external terminal contact surface of the connection terminal are fitted, and the external terminal and the connection terminal are welded and joined. The secondary battery as described in any one of 1-5. 前記外部端子は、ニッケルめっきもしくはすずめっきで被膜されていることを特徴とする請求項１から６のいずれか一項に記載の二次電池。   The secondary battery according to claim 1, wherein the external terminal is coated with nickel plating or tin plating. 前記外部端子の前記バスバー当接面は、平面視で円形状を呈していることを特徴とする請求項１から７のいずれか一項に記載の二次電池。   The secondary battery according to claim 1, wherein the bus bar contact surface of the external terminal has a circular shape in plan view. 前記外部端子の前記バスバー当接面は、平面視で多角形状を呈していることを特徴とする請求項１から７のいずれか一項に記載の二次電池。   The secondary battery according to any one of claims 1 to 7, wherein the bus bar contact surface of the external terminal has a polygonal shape in a plan view. 前記二次電池は、蓄電要素が収容された電池缶を封止する矩形平板状の蓋を備え、
前記外部端子の前記バスバー当接面は、平面視で前記蓋の長手方向に沿った方向に長辺を有する長方形状を呈していることを特徴とする請求項９に記載の二次電池。 The secondary battery includes a rectangular flat lid that seals a battery can in which a power storage element is accommodated,
The secondary battery according to claim 9, wherein the bus bar contact surface of the external terminal has a rectangular shape having a long side in a direction along a longitudinal direction of the lid in a plan view. 前記ボルトのねじ部の軸心と前記接続端子の軸部の軸心とは同心配置されていることを特徴とする請求項１から１０のいずれか一項に記載の二次電池。   11. The secondary battery according to claim 1, wherein an axis of a screw part of the bolt and an axis of an axis of the connection terminal are arranged concentrically. 前記ボルトのねじ部の軸心と前記接続端子の軸部の軸心とは偏心配置されていることを特徴とする請求項１から１０のいずれか一項に記載の二次電池。   11. The secondary battery according to claim 1, wherein an axis of a screw portion of the bolt and an axis of a shaft portion of the connection terminal are arranged eccentrically.
JP2011210997A 2011-09-27 2011-09-27 Secondary battery Expired - Fee Related JP5628127B2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2011210997A JP5628127B2 (en) 2011-09-27 2011-09-27 Secondary battery
PCT/JP2012/068295 WO2013046873A1 (en) 2011-09-27 2012-07-19 Secondary battery

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2011210997A JP5628127B2 (en) 2011-09-27 2011-09-27 Secondary battery

Publications (3)

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JP2013073745A JP2013073745A (en) 2013-04-22
JP2013073745A5 true JP2013073745A5 (en) 2013-11-07
JP5628127B2 JP5628127B2 (en) 2014-11-19

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JP2011210997A Expired - Fee Related JP5628127B2 (en) 2011-09-27 2011-09-27 Secondary battery

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JP (1) JP5628127B2 (en)
WO (1) WO2013046873A1 (en)

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JP6327818B2 (en) * 2013-09-19 2018-05-23 株式会社貴匠技研 First terminal member with connector terminal structure
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JP6760045B2 (en) * 2016-12-21 2020-09-23 三洋電機株式会社 Square secondary battery and its manufacturing method
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JP7412384B2 (en) * 2021-03-22 2024-01-12 プライムプラネットエナジー＆ソリューションズ株式会社 assembled battery
JP7402202B2 (en) * 2021-07-15 2023-12-20 プライムプラネットエナジー＆ソリューションズ株式会社 Terminal components and terminal component manufacturing method
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JP2001357834A (en) * 2000-06-16 2001-12-26 Japan Storage Battery Co Ltd Battery
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