公开(公告)号：US09337454B2

公开(公告)日：2016-05-10

申请号：US13643830

申请日：2011-11-04

申请人： Tomohiko Yokoyama ,  Masato Fujikawa ,  Akiko Yuasa

发明人： Tomohiko Yokoyama ,  Masato Fujikawa ,  Akiko Yuasa

IPC分类号： H01M2/12 ,  H01M2/10

CPC分类号： H01M2/1061 ,  H01M2/1241

摘要： A battery pack comprising: a secondary battery including a safety valve; a gas absorption portion including a gas absorbent represented by zeolite and a container hermetically enclosing the gas absorbent; and a case housing the secondary battery and the gas absorption portion. The safety valve is configured to discharge a gas produced in the secondary battery at the time of abnormality. The container includes a principal surface facing the safety valve, for example, and when the gas is discharged, the container is unsealed by rupturing of at least the principal surface of the container by an effect of heat or pressure of the gas.

摘要翻译： 一种电池组，包括：二次电池，包括安全阀; 气体吸收部分，包括由沸石表示的气体吸收剂和气密地包围气体吸收剂的容器; 以及容纳二次电池和气体吸收部的壳体。 安全阀被配置为在异常时排出在二次电池中产生的气体。 容器包括例如面向安全阀的主表面，并且当气体排出时，容器通过气体的热或压力的影响使至少主体表面破裂而开封。

公开(公告)号：US20130040173A1

公开(公告)日：2013-02-14

申请号：US13643830

申请日：2011-11-04

申请人： Tomohiko Yokoyama ,  Masato Fujikawa ,  Akiko Yuasa

发明人： Tomohiko Yokoyama ,  Masato Fujikawa ,  Akiko Yuasa

IPC分类号： H01M2/12

CPC分类号： H01M2/1061 ,  H01M2/1241

摘要： A battery pack comprising: a secondary battery including a safety valve; a gas absorption portion including a gas absorbent represented by zeolite and a container hermetically enclosing the gas absorbent; and a case housing the secondary battery and the gas absorption portion. The safety valve is configured to discharge a gas produced in the secondary battery at the time of abnormality. The container includes a principal surface facing the safety valve, for example, and when the gas is discharged, the container is unsealed by rupturing of at least the principal surface of the container by an effect of heat or pressure of the gas.

摘要翻译： 一种电池组，包括：二次电池，包括安全阀; 气体吸收部分，包括由沸石表示的气体吸收剂和气密地包围气体吸收剂的容器; 以及容纳二次电池和气体吸收部的壳体。 安全阀被配置为在异常时排出在二次电池中产生的气体。 容器包括例如面向安全阀的主表面，并且当气体排出时，容器通过气体的热或压力的影响使至少主体表面破裂而开封。

公开(公告)号：US09362587B2

公开(公告)日：2016-06-07

申请号：US13576871

申请日：2010-12-15

申请人： Tomohiko Yokoyama ,  Kazuki Endo ,  Masato Fujikawa

发明人： Tomohiko Yokoyama ,  Kazuki Endo ,  Masato Fujikawa

IPC分类号： H01M4/00 ,  H01M2/36 ,  H01M10/04 ,  H01M2/02 ,  H01M2/26 ,  H01M10/0587 ,  H01M10/052

CPC分类号： H01M10/0431 ,  H01M2/02 ,  H01M2/263 ,  H01M10/052 ,  H01M10/0587 ,  H01M2002/0205 ,  Y02T10/7011

摘要： In a rectangular battery, a lead 9L connected to an electrode plate having a first polarity is connected to a battery case 1 which is an external terminal having the first polarity. A lead 11L connected to an electrode plate having a second polarity is connected to an external terminal 25 having the second polarity, through a connection plate 29. A distance between the battery case 1 and the connection plate 29 at at least one end of the battery case 1 in a long-side direction is equal to or less than the half of the width of the battery case 1 in a short-side direction thereof.

摘要翻译： 在矩形电池中，连接到具有第一极性的电极板的引线9L连接到作为具有第一极性的外部端子的电池壳体1。 连接到具有第二极性的电极板的引线11L通过连接板29连接到具有第二极性的外部端子25.在电池的至少一端处电池壳体1和连接板29之间的距离 长边方向的壳体1在短边方向上等于或小于电池壳体1的宽度的一半。

公开(公告)号：US20130095356A1

公开(公告)日：2013-04-18

申请号：US13807672

申请日：2011-05-31

申请人： Keisuke Shimizu ,  Tomohiko Yokoyama ,  Masato Fujikawa ,  Keisuke Naito

发明人： Keisuke Shimizu ,  Tomohiko Yokoyama ,  Masato Fujikawa ,  Keisuke Naito

IPC分类号： H01M2/12

CPC分类号： H01M2/1223 ,  H01M2/1077 ,  H01M2/1241

摘要： Batteries 100 are accommodated in a case 20, wherein the batteries 100 each include an opening portion 8a for releasing gas produced in an associated one of the batteries to outside the battery, the case 20 is partitioned into an accommodation section 50 configured to accommodate the batteries 100 and an exhaust passage 60 configured to expel the gas released from at least one of the opening portions 8a of the batteries 100 to outside the case 20, the opening portions 8a of the batteries 100 are allowed to communicate with the exhaust passage 60 through sealed connection passages 40, and a one-way open valve 70 which is configured to open only along a direction from the opening portion 8a of the battery 100 to the exhaust passage 60 is provided in an intermediate portion or at an end of each of the connection passages 40.

摘要翻译： 电池100容纳在壳体20中，其中电池100各自包括用于将相关联的一个电池中产生的气体释放到电池外部的开口部分8a，壳体20被分隔成容纳电池的容纳部分50 100和排气通道60，其被配置为将从电池100的至少一个开口部分8a释放的气体排出到壳体20的外部，电池100的开口部分8a通过密封的方式与排气通道60连通 连接通道40和单向打开阀70被构造成仅沿着从电池100的开口部分8a到排气通道60的方向打开，在每个连接件的中间部分或末端 通道40。

公开(公告)号：US20100136393A1

公开(公告)日：2010-06-03

申请号：US12595001

申请日：2008-07-17

申请人： Hideharu Takezawa ,  Masato Fujikawa ,  Miyiki Nakai ,  Shinji Kasamatsu ,  Tomohiko Yokoyama

发明人： Hideharu Takezawa ,  Masato Fujikawa ,  Miyiki Nakai ,  Shinji Kasamatsu ,  Tomohiko Yokoyama

IPC分类号： H01M6/10 ,  H01M4/58 ,  H01M4/00

CPC分类号： H01M10/0525 ,  H01M4/485 ,  H01M4/505 ,  H01M4/525 ,  H01M2004/021

摘要： In a lithium ion secondary battery, a lithium-nickel-containing composite oxide that contains lithium and nickel is used as a positive electrode active material, and a negative electrode active material having a melting temperature of 1200° C. or less in a lithium-absorbed state is included in a negative electrode active material layer. By configuring as above, in the lithium ion secondary battery, it is possible to achieve higher capacity, higher output, and longer life, as well as further improved safety, and particularly in a nail penetration test, to suppress the heat generation due to internal short circuit and to reliably prevent the occurrence of thermal runaway.

摘要翻译： 在锂离子二次电池中，使用含有锂和镍的含锂镍复合氧化物作为正极活性物质，在锂离子二次电池中使用熔融温度为1200℃以下的负极活性物质， 吸收状态包括在负极活性物质层中。 通过如上构造，在锂离子二次电池中，可以实现更高的容量，更高的输出和更长的寿命，以及进一步提高安全性，特别是在钉子穿透试验中，抑制由内部产生的发热 短路并可靠地防止热失控的发生。

公开(公告)号：US20090042097A1

公开(公告)日：2009-02-12

申请号：US12187736

申请日：2008-08-07

申请人： Masato Fujikawa ,  Hideharu Takezawa ,  Shinji Kasamatsu ,  Tomohiko Yokoyama

发明人： Masato Fujikawa ,  Hideharu Takezawa ,  Shinji Kasamatsu ,  Tomohiko Yokoyama

IPC分类号： H01M4/02 ,  H01M10/00

CPC分类号： H01M4/139 ,  H01M4/0421 ,  H01M4/131 ,  H01M4/134 ,  H01M4/136 ,  H01M4/1391 ,  H01M4/1395 ,  H01M4/1397 ,  H01M4/70 ,  H01M10/052 ,  H01M10/0585

摘要： A lithium ion secondary battery includes a negative electrode that is shaped like waves in a section in the thickness direction. In the negative electrode, the ratio t1/t0 of the largest thickness t1 to the smallest thickness t0 is from 1.2 to 3.0. The negative electrode includes a thin-film negative electrode active material layer in which the ratio A/B of the volume A in a charged state to the volume B in a discharged state is 1.2 or more. The lithium ion secondary battery has high capacity, high power, long life, and improved safety. In particular, heat generation due to an internal short-circuit is significantly suppressed in a nail penetration test.

摘要翻译： 锂离子二次电池包括沿厚度方向的截面形状为波浪状的负极。 在负极中，最大厚度t1与最小厚度t0的比t1 / t0为1.2〜3.0。 负极包括薄膜负极活性物质层，其中处于放电状态的体积A与放电状态的体积B的比例A / B为1.2以上。 锂离子二次电池容量大，功率大，寿命长，安全性好。 特别地，在钉子穿透试验中，由于内部短路引起的发热被显着抑制。

公开(公告)号：US09231237B2

公开(公告)日：2016-01-05

申请号：US13807672

申请日：2011-05-31

申请人： Keisuke Shimizu ,  Tomohiko Yokoyama ,  Masato Fujikawa ,  Keisuke Naito

发明人： Keisuke Shimizu ,  Tomohiko Yokoyama ,  Masato Fujikawa ,  Keisuke Naito

IPC分类号： H01M2/12 ,  H01M2/10

CPC分类号： H01M2/1223 ,  H01M2/1077 ,  H01M2/1241

摘要： Batteries 100 are accommodated in a case 20, wherein the batteries 100 each include an opening portion 8a for releasing gas produced in an associated one of the batteries to outside the battery, the case 20 is partitioned into an accommodation section 50 configured to accommodate the batteries 100 and an exhaust passage 60 configured to expel the gas released from at least one of the opening portions 8a of the batteries 100 to outside the case 20, the opening portions 8a of the batteries 100 are allowed to communicate with the exhaust passage 60 through sealed connection passages 40, and a one-way open valve 70 which is configured to open only along a direction from the opening portion 8a of the battery 100 to the exhaust passage 60 is provided in an intermediate portion or at an end of each of the connection passages 40.

摘要翻译： 电池100容纳在壳体20中，其中电池100各自包括用于将相关联的一个电池中产生的气体释放到电池外部的开口部分8a，壳体20被分隔成容纳电池的容纳部分50 100和排气通道60，其被配置为将从电池100的至少一个开口部分8a释放的气体排出到壳体20的外部，电池100的开口部分8a通过密封的方式与排气通道60连通 连接通道40和单向打开阀70被构造成仅沿着从电池100的开口部分8a到排气通道60的方向打开，在每个连接件的中间部分或末端 通道40。

公开(公告)号：US08389153B2

公开(公告)日：2013-03-05

申请号：US12681709

申请日：2009-06-01

申请人： Masato Fujikawa ,  Tomohiko Yokoyama

发明人： Masato Fujikawa ,  Tomohiko Yokoyama

IPC分类号： H01M2/08 ,  H01M2/02

CPC分类号： H01M2/0413 ,  H01M2/022 ,  H01M2/08 ,  H01M2/1011 ,  H01M10/0525

摘要： A battery including: a battery case having a bottom, a side wall, and an upper opening; an electrode assembly; an electrolyte; and a sealing plate covering the upper opening of the battery case accommodating the electrode assembly and the electrolyte, the electrode assembly including a positive electrode, a negative electrode, and a separator interposed between the positive electrode and the negative electrode, a gasket is interposed between an opening-edge portion of the battery case and the sealing plate, a first resistive layer is disposed between the opening-edge portion of the battery case and the gasket, or a second resistive layer is disposed between the sealing plate and the gasket. The first or second resistive layer contains a mixture of a particulate inorganic oxide and a binder. This configuration makes it possible to prevent a short circuit between the battery case and the sealing plate even when the gasket is broken.

摘要翻译： 一种电池，包括：具有底部，侧壁和上部开口的电池壳体; 电极组件; 电解液 以及覆盖容纳电极组件和电解质的电池壳体的上部开口的密封板，所述电极组件包括正极，负极和介于正极和负极之间的隔膜，垫圈插入在 电池壳体和密封板的开口边缘部分，在电池壳体的开口边缘部分和垫圈之间设置第一电阻层，或者在密封板和垫圈之间设置第二电阻层。 第一或第二电阻层含有颗粒无机氧化物和粘合剂的混合物。 这种构造使得即使当垫圈破裂时也可以防止电池壳体和密封板之间的短路。

公开(公告)号：US20120301757A1

公开(公告)日：2012-11-29

申请号：US13576871

申请日：2010-12-15

申请人： Tomohiko Yokoyama ,  Kazuki Endo ,  Masato Fujikawa

发明人： Tomohiko Yokoyama ,  Kazuki Endo ,  Masato Fujikawa

IPC分类号： H01M4/00 ,  H01M2/36

CPC分类号： H01M10/0431 ,  H01M2/02 ,  H01M2/263 ,  H01M10/052 ,  H01M10/0587 ,  H01M2002/0205 ,  Y02T10/7011

摘要： In a rectangular battery, a lead 9L connected to an electrode plate having a first polarity is connected to a battery case 1 which is an external terminal having the first polarity. A lead 11L connected to an electrode plate having a second polarity is connected to an external terminal 25 having the second polarity, through a connection plate 29. A distance between the battery case 1 and the connection plate 29 at at least one end of the battery case 1 in a long-side direction is equal to or less than the half of the width of the battery case 1 in a short-side direction thereof.

摘要翻译： 在矩形电池中，连接到具有第一极性的电极板的引线9L连接到作为具有第一极性的外部端子的电池壳体1。 连接到具有第二极性的电极板的引线11L通过连接板29连接到具有第二极性的外部端子25.在电池的至少一端处电池壳体1和连接板29之间的距离 长边方向的壳体1在短边方向上等于或小于电池壳体1的宽度的一半。

公开(公告)号：US08318337B2

公开(公告)日：2012-11-27

申请号：US12498729

申请日：2009-07-07

申请人： Tomohiko Yokoyama ,  Masato Fujikawa

发明人： Tomohiko Yokoyama ,  Masato Fujikawa

IPC分类号： H01M2/22 ,  H01M2/26

CPC分类号： H01M10/0525 ,  H01M2/22 ,  H01M2/26 ,  H01M2/34 ,  H01M2/348 ,  H01M4/70 ,  H01M10/0587 ,  H01M10/613 ,  H01M10/643 ,  H01M10/654 ,  H01M10/6553

摘要： A battery includes an electrode assembly including a first electrode and a second electrode, a non-aqueous electrolyte, a battery case, a first lead connecting the first electrode with a bottom of the battery case, a seal member sealing an opening of the battery case, and a second lead connecting the second electrode with the seal member. At least one of the first lead and the second lead has a high resistant portion that has a higher resistance than the other portions per unit length. The high resistant portion is disposed at a position of the first lead closer to the first electrode than the portion connected to the bottom of the battery case or at a position of the second lead closer to the second electrode than the portion connected to the seal member. The high resistant portion is in contact with the battery case or the seal member.

摘要翻译： 电池包括电极组件，其包括第一电极和第二电极，非水电解质，电池壳体，将第一电极与电池壳体的底部连接的第一引线，密封电池壳体的开口的密封构件 以及将第二电极与密封构件连接的第二引线。 第一引线和第二引线中的至少一个具有比每单位长度的其它部分更高的电阻的高电阻部分。 高阻抗部分设置在比连接到电池盒的底部的部分更靠近第一电极的位置处，或者在比第二引线更靠近第二电极的位置处，与连接到密封构件的部分 。 高电阻部分与电池壳体或密封构件接触。