公开(公告)号：US20130344364A1

公开(公告)日：2013-12-26

申请号：US13996342

申请日：2011-12-21

申请人： Takeshi Nanaumi ,  Takayuki Mitani ,  Katsunori Suzuki ,  Hideki Shinohara

发明人： Takeshi Nanaumi ,  Takayuki Mitani ,  Katsunori Suzuki ,  Hideki Shinohara

IPC分类号： H01M10/04 ,  H01M4/13

CPC分类号： H01M10/0431 ,  H01M2/263 ,  H01M4/13 ,  H01M4/139 ,  H01M4/661 ,  H01M10/0587

摘要： A lithium ion secondary battery in which a winding type electrode group including a positive electrode having a positive electrode mix layer containing a lithium metal oxide, a negative electrode having a negative mix layer that stores and discharges lithium ions, and separators arranged on inner and outer peripheries of the positive electrode and the negative electrode is housed, and a nonaqueous electrolyte is poured, within a battery container, the positive electrode has one side edge along a longitudinal direction thereof exposed as a positive electrode mix unprocessed portion, and a positive electrode mix layer coated in the other area on both surfaces of a metal foil made of an aluminum alloy.

摘要翻译： 一种锂离子二次电池，其中包括具有含有锂金属氧化物的正极混合层的正极的绕组型电极组，具有储存和排出锂离子的负极混合层的负极和布置在内部和外部的隔板 容纳正极和负极的周边，并且在电池容器内注入非水电解质，正极具有作为正极混合未加工部分露出的沿其长度方向的一个侧边缘，以及正极混合物 层涂在由铝合金制成的金属箔的两个表面上的另一区域中。

公开(公告)号：US07771863B2

公开(公告)日：2010-08-10

申请号：US11942286

申请日：2007-11-19

申请人： Takayuki Mitani ,  Katsunori Suzuki

发明人： Takayuki Mitani ,  Katsunori Suzuki

IPC分类号： H01M2/12

CPC分类号： H01M2/1241 ,  H01M2/022 ,  H01M2/0413 ,  H01M2/345 ,  H01M10/052

摘要： A cylindrical secondary battery where safety can be secured even when an external pressure accompanying rapid deformation of the battery acts on the battery is provided in a battery having a large capacity. A lithium ion secondary battery has a capacity of 14 Ah, where an upper lid is fixed to a battery can which receives an electrode winding grope therein. The upper lid includes a diaphragm 2 formed with a rupturing valve and an upper lid cap whose peripheral edge portion is fixed to a peripheral edge portion of the diaphragm 2. The rupturing valve includes a rupturing groove 8 with a V-shaped section formed on a surface of the diaphragm 2 positioned on the side of the upper lid cap and a rupturing groove 18 with a U-shaped section formed on a surface of the diaphragm 2 positioned on the side of the electrode winding group so as to correspond to the position of the rupturing groove 8.

摘要翻译： 即使在伴随电池的快速变形的外部压力作用在电池上的情况下也可以确保安全性的圆筒形二次电池设置在具有大容量的电池中。 锂离子二次电池的容量为14Ah，其中上盖固定在电池壳体上，该电池罐容纳电极绕组。 上盖包括形成有断裂阀和上盖盖的隔膜2，其周缘部分固定到隔膜2的周缘部分。断裂阀包括具有V形截面的破裂槽8， 位于上盖盖一侧的隔膜2的表面和形成在隔膜2的位于电极绕组组一侧的表面上的U形截面的开槽槽18，以对应于电极绕组组的位置 破裂槽8。

公开(公告)号：US20110229747A1

公开(公告)日：2011-09-22

申请号：US13029784

申请日：2011-02-17

申请人： Takayuki Mitani ,  Katsunori Suzuki

发明人： Takayuki Mitani ,  Katsunori Suzuki

IPC分类号： H01M10/36

CPC分类号： H01M10/0587 ,  H01M2/263

摘要： The secondary battery cell according to the present invention includes a cylindrical winding core for winding the positive electrode and the negative electrode. This winding core has a hollow portion which pierces through the winding core coaxially from one end of the cylindrical winding core to the other end. The cross section of one side of the hollow portion is larger than that of the other end, so that a welding electrode rod is easily inserted from the side of the winding core with larger cross section of the hollow portion, and that the position of the welding electrode rod is well defined by the narrower hollow portion. The side of the winding core with larger cross section of the hollow portion is used for fitting a drive shaft of winding device.

摘要翻译： 根据本发明的二次电池包括用于卷绕正极和负极的圆柱形绕组芯。 该卷绕芯具有中空部分，该中空部分从圆筒形卷芯的一端同轴地穿过卷芯，至另一端。 中空部分的一侧的横截面大于另一端的横截面，使得焊接电极棒容易从卷芯的侧面以较大的中空部分的横截面插入，并且， 焊接电极棒由较窄的中空部分明确限定。 用于装配绕线装置的驱动轴的具有较大横截面的中空部分的卷芯的一侧。