公开(公告)号：US20140023890A1

公开(公告)日：2014-01-23

申请号：US13550982

申请日：2012-07-17

申请人： Eiji Okutani ,  Yoshinori Yokoyama ,  Takayuki Hattori ,  Yasuhiro Yamauchi

发明人： Eiji Okutani ,  Yoshinori Yokoyama ,  Takayuki Hattori ,  Yasuhiro Yamauchi

IPC分类号： H01M2/12 ,  B21J5/12

CPC分类号： H01M2/1223 ,  B21K23/00 ,  H01M2/024 ,  H01M2/043 ,  H01M2/12 ,  H01M2/362 ,  H01M2220/20

摘要： A sealing plate for a prismatic secondary battery includes a pair of mouths for attaching a negative and positive electrode terminals, one mouth being formed near one end in a longitudinal direction of the sealing plate, and the other mouth being formed near the other end, coining areas used for positioning of an insulating member and formed around the pair of mouths on a front face of the sealing plate, a gas release valve and an electrolyte pour hole formed between the pair of mouths, and grooves formed between the respective coining areas and the long side edge of the sealing plate. The groove has a smaller depth near the gas release valve than the depth near the coining area. Even when the sealing plate is produced through forging, the front face has good flatness and the coining areas are unlikely to have a sink mark or a shear drop.

摘要翻译： 用于棱柱二次电池的密封板包括一对用于连接负极和正电极端子的口，一个嘴形成在密封板的纵向方向上的一端附近，另一个嘴形成在另一端附近，压印 用于定位绝缘构件并形成在密封板前表面上的一对口周围的区域，形成在一对口之间的气体释放阀和电解液浇注孔，以及形成在各个压印区域和 密封板的长边缘。 凹槽在气体释放阀附近具有比靠近压印区域的深度更小的深度。 即使当密封板通过锻造制造时，前表面具有良好的平整度，并且压印区域不太可能具有凹痕或剪切下落。

公开(公告)号：US07727671B2

公开(公告)日：2010-06-01

申请号：US10386713

申请日：2003-03-13

申请人： Eiji Okutani ,  Atsushi Obayashi

发明人： Eiji Okutani ,  Atsushi Obayashi

IPC分类号： H01M2/26 ,  H01M2/04

CPC分类号： H01M2/06 ,  H01M2/0408 ,  H01M2/263

摘要： A closed battery, according to the invention, comprises a substantially flat box-type outer case 60 having electrical conductivity, provided with an opening on one side in the longitudinal direction thereof and other peripheral sides that are closed, a spiral electrode body 21 housed in the outer case, comprising a positive electrode, a negative electrode, and a separator interposed therebetween, an electrode current collector tab 21a larger in thickness than a core body, welded to a cut and raised piece that is cut and raised from an exposed part of the core body of one of the electrodes of the spiral electrode body, and a sealing plate 50 for covering and sealing the opening of the outer case, wherein the outer case is sealed by laser-welding with the electrode current collector tab being clamped between the rim of the opening and the sealing plate when sealing the opening of the outer case.Under the construction described above, since the mechanical strength of the electrode current collector tab is enhanced, improvements in the performance and reliability of the closed battery can be obtained.

摘要翻译： 根据本发明的封闭电池包括具有导电性的基本平坦的盒式外壳60，在其长度方向上的一侧上设有开口，并且封闭了其他外围侧，容纳在其中的螺旋电极体21 外壳，包括正电极，负电极和插入其间的隔膜，电极集电体翼片21a的厚度大于芯体，焊接到从暴露部分切割和升高的切割和凸起部分 螺旋电极体的一个电极的芯体和用于覆盖和密封外壳的开口的密封板50，其中通过激光焊接密封外壳，电极集电片被夹在 当密封外壳的开口时，开口的边缘和密封板。 在上述结构中，由于电极集电体片的机械强度提高，所以可以获得封闭电池的性能和可靠性的提高。

公开(公告)号：US20140023913A1

公开(公告)日：2014-01-23

申请号：US13550866

申请日：2012-07-17

申请人： Yoshinori Yokoyama ,  Takayuki Hattori ,  Eiji Okutani ,  Yasuhiro Yamauchi

发明人： Yoshinori Yokoyama ,  Takayuki Hattori ,  Eiji Okutani ,  Yasuhiro Yamauchi

IPC分类号： H01M2/06 ,  H01M2/30 ,  H01M2/02

CPC分类号： H01M2/30 ,  H01M2/0217 ,  H01M2/06 ,  H01M2/263 ,  H01M10/0431

摘要： In a prismatic secondary battery, a negative electrode terminal is fixed to a sealing plate in an insulated manner through through-holes formed in the sealing plate, first and second insulating members, and a collector. The collector includes a flat attachment part with the through-hole and a main body bent from an end of the flat attachment part and electrically connected to an electrode assembly. The second insulating member includes a depression having peripheral ribs on an opposite face to the sealing plate. At least one of the peripheral ribs along the short sides thereof has at least one of a width and height larger than that of the peripheral rib along the long sides thereof. The flat attachment part of the collector is fitted to the depression.

摘要翻译： 在棱柱二次电池中，负极端子通过形成在密封板，第一绝缘构件和第二绝缘构件和集电体中的通孔以绝缘方式固定到密封板。 集电体包括具有通孔的扁平安装部分和从平坦安装部分的端部弯曲并与电极组件电连接的主体。 第二绝缘构件包括在与密封板相对的面上具有周向肋的凹部。 沿着短边的周缘肋中的至少一个具有沿着其长边的宽度和高度大于周边肋的宽度和高度中的至少一个。 收集器的扁平安装部分安装在凹陷处。

公开(公告)号：US08439983B2

公开(公告)日：2013-05-14

申请号：US12059746

申请日：2008-03-31

申请人： Eiji Okutani ,  Atsushi Obayashi ,  Tomokazu Yamanaka ,  Yoshikumi Miyamoto ,  Ryuji Oshita

发明人： Eiji Okutani ,  Atsushi Obayashi ,  Tomokazu Yamanaka ,  Yoshikumi Miyamoto ,  Ryuji Oshita

IPC分类号： H01M2/04

CPC分类号： H01M2/22 ,  H01M2/06 ,  H01M2/30 ,  H01M10/0525 ,  Y10T29/49108 ,  Y10T29/4911

摘要： Provided is a sealed battery that can offer excellent battery performances by having its electrode terminal and a current collector securely welded to each other, and its manufacturing method. The sealed battery is formed by hermetically sealing a casing storing an electrode assembly and the current collector, wherein: the electrode assembly formed by layering positive and negative electrode plates with a separator sandwiched therebetween is electrically connected to the current collector; and a shaft portion of the electrode terminal penetrates through the current collector. A part of the electrode terminal projecting out from a pass-through of the current collector is a (conical) frustum-shaped portion whose bottom base is in contact with the current collector. The frustum-shaped portion is pressed against the current collector, and the frustum-shaped portion and the current collector are welded together in at least one area on a perimeter of the bottom base of the frustum-shaped portion.

摘要翻译： 提供一种通过使其电极端子和集电体彼此牢固地焊接而提供优异的电池性能的密封电池及其制造方法。 密封电池通过气密地密封存储电极组件和集电器的壳体而形成，其中：通过将夹持有隔板的正极板和负极板层叠而形成的电极组件与集电体电连接; 并且电极端子的轴部分穿过集电器。 从集电体的贯通突出的电极端子的一部分是底部与集电体接触的（锥形）截头圆锥形部分。 截头锥形部分压靠集电器，并且截头锥形部分和集电器在截头圆锥形部分的底部基部的周边上的至少一个区域中焊接在一起。

公开(公告)号：US09017843B2

公开(公告)日：2015-04-28

申请号：US13551258

申请日：2012-07-17

申请人： Takayuki Hattori ,  Eiji Okutani ,  Yoshinori Yokoyama ,  Yasuhiro Yamauchi

发明人： Takayuki Hattori ,  Eiji Okutani ,  Yoshinori Yokoyama ,  Yasuhiro Yamauchi

IPC分类号： H01M2/36 ,  H01M2/02 ,  H01M2/04 ,  H01M2/12

CPC分类号： H01M2/362 ,  H01M2/0217 ,  H01M2/0237 ,  H01M2/024 ,  H01M2/0426 ,  H01M2/043 ,  H01M2/0439 ,  H01M2/12 ,  H01M2/1223 ,  H01M2/361 ,  H01M10/0431 ,  H01M2200/20

摘要： A prismatic secondary battery includes a prismatic hollow outer body having a mouth and a bottom and storing an electrode assembly, a positive electrode collector, a negative electrode collector, and an electrolyte, a sealing plate sealing up the mouth of the prismatic hollow outer body, and a positive electrode terminal and a negative electrode terminal attached to the sealing plate; the sealing plate includes a gas release valve at the center between the positive electrode terminal and the negative electrode terminal and includes an electrolyte pour hole on one side of the gas release valve and, on the other side on the front face, a concaved flat face with a height lower than that of the peripheral portion; and the concaved flat face is formed with an identification code.

摘要翻译： 棱柱形二次电池包括具有口和底部并且存储电极组件，正电极集电体，负极集电器和电解质的棱柱形中空外体，密封棱柱形中空外体的口部的密封板， 以及安装在密封板上的正极端子和负极端子; 密封板包括在正极端子和负极端子之间的中心处的气体释放阀，并且在气体释放阀的一侧上包括电解液浇注孔，并且在前表面的另一侧上具有凹面 其高度低于周边部分的高度; 并且凹形平面形成有识别码。

公开(公告)号：US08991232B2

公开(公告)日：2015-03-31

申请号：US13550982

申请日：2012-07-17

申请人： Eiji Okutani ,  Yoshinori Yokoyama ,  Takayuki Hattori ,  Yasuhiro Yamauchi

发明人： Eiji Okutani ,  Yoshinori Yokoyama ,  Takayuki Hattori ,  Yasuhiro Yamauchi

IPC分类号： B21D22/00 ,  H01M2/02 ,  H01M2/04 ,  H01M2/12 ,  H01M2/36 ,  B21K23/00

CPC分类号： H01M2/1223 ,  B21K23/00 ,  H01M2/024 ,  H01M2/043 ,  H01M2/12 ,  H01M2/362 ,  H01M2220/20

摘要： A sealing plate for a prismatic secondary battery includes a pair of mouths for attaching a negative and positive electrode terminals, one mouth being formed near one end in a longitudinal direction of the sealing plate, and the other mouth being formed near the other end, coining areas used for positioning of an insulating member and formed around the pair of mouths on a front face of the sealing plate, a gas release valve and an electrolyte pour hole formed between the pair of mouths, and grooves formed between the respective coining areas and the long side edge of the sealing plate. The groove has a smaller depth near the gas release valve than the depth near the coining area. Even when the sealing plate is produced through forging, the front face has good flatness and the coining areas are unlikely to have a sink mark or a shear drop.

摘要翻译： 用于棱柱二次电池的密封板包括一对用于连接负极和正电极端子的口，一个嘴形成在密封板的纵向方向上的一端附近，另一个嘴形成在另一端附近，压印 用于定位绝缘构件并形成在密封板前表面上的一对口周围的区域，形成在一对口之间的气体释放阀和电解液浇注孔，以及形成在各个压印区域和 密封板的长边缘。 凹槽在气体释放阀附近具有比靠近压印区域的深度更小的深度。 即使当密封板通过锻造制造时，前表面具有良好的平整度，并且压印区域不太可能具有凹痕或剪切下落。

公开(公告)号：US06432578B1

公开(公告)日：2002-08-13

申请号：US09428545

申请日：1999-10-28

申请人： Nobuaki Sugita ,  Eiji Okutani ,  Kensuke Nakatani ,  Noriyuki Miyazaki

发明人： Nobuaki Sugita ,  Eiji Okutani ,  Kensuke Nakatani ,  Noriyuki Miyazaki

IPC分类号： H01M220

CPC分类号： H01M2/26 ,  H01M2/0404 ,  H01M2/20 ,  H01M6/10 ,  H01M2006/106

摘要： A sealed cell has: a cell outer can 60 having a hollow body with a bottom and an opening; a spirally-wound electrode body 40 accommodated in the above-mentioned cell outer can 60, including a positive electrode plate 20 and a negative electrode plate 30 wound with a separator 41; a sealing lid 50 having a sealing plate 51 sealed to the above-mentioned opening of the cell outer can 60 and an insulating member on a bottom of the above-mentioned sealing plate 51; and a positive electrode current collector tab 24 derived from a portion of an exposed core body of the positive electrode plate 20 on an outermost periphery of the above-mentioned spirally-wound electrode body 40; wherein the positive electrode current collector tab 24, the cell outer can 60 and the sealing plate 51 are welded with a tip of the above-mentioned positive electrode current collector tab 24 being held between the above-mentioned sealing plate 51 and an open rim of the above-mentioned cell outer can 60; a spacer 56 composing the above-mentioned insulating member has a concavity 561 in a portion in which the above-mentioned positive electrode current collector tab 24 is led in a direction of the opening of the above-mentioned cell outer can 60; and the above-mentioned positive electrode current collector tab 24 has a bent portion 241 in the above-mentioned concavity 561. According to this construction, it is possible to provide a sealed cell which can prevent disconnection of a current collector tab inside the cell and improve reliability, even when shock such as a drop of the cell is applied to the cell.

摘要翻译： 密封的电池具有：具有底部和开口的中空本体的电池外壳60; 容纳在上述电池外罐60中的螺旋卷绕电极体40，包括正极板20和缠绕有隔板41的负极板30; 密封盖50具有密封在电池外罐60的上述开口上的密封板51和位于上述密封板51的底部的绝缘件; 以及从上述螺旋卷绕电极体40的最外周的正极板20的露出铁芯体的一部分得到的正极集电体突片24; 其中正极集电片24，电池外罐60和密封板51焊接在上述正极集电片24的前端，该正极集电片24保持在上述密封板51和开口边缘 上述电池外罐60; 构成上述绝缘构件的间隔件56在上述正极集电片24沿着上述电池外罐60的开口方向被引导的部分具有凹部561; 并且上述正极集电体突片24在上述凹部561中具有弯曲部分241.根据该结构，可以提供一种密封电池，其能够防止电池内部的集电片断开， 提高可靠性，即使将诸如细胞滴的冲击应用于细胞时也是如此。