公开(公告)号：US06455199B1

公开(公告)日：2002-09-24

申请号：US09214825

申请日：1999-02-22

Applicant: Masaki Kitagawa ,  Yoshihiro Kashihara ,  Hizuru Koshina ,  Toyoji Sugimoto ,  Kunio Tsuruta ,  Shuji Ito ,  Hajime Nishino ,  Kojiro Ishikawa ,  Hisanori Sugimoto ,  Kaoru Tsukamoto

Inventor： Masaki Kitagawa ,  Yoshihiro Kashihara ,  Hizuru Koshina ,  Toyoji Sugimoto ,  Kunio Tsuruta ,  Shuji Ito ,  Hajime Nishino ,  Kojiro Ishikawa ,  Hisanori Sugimoto ,  Kaoru Tsukamoto

IPC: C01B3104

CPC classification number: H01M4/587 ,  H01M4/133 ,  H01M10/0525 ,  H01M2004/021 ,  Y10T29/49108

Abstract: Graphite powder for a negative electrode in prior arts, which allows lithium ions to repeat intercalation and deintercalation reversibly by charge and discharge, has failed to attain a specific capacity close to the theoretical capacity of 372 mAh per 1 g. Also, there was a problem in storage property at a high temperature when it is attempted to improve the high rate charge and discharge characteristics. An object of the present invention is to solve these problems. In the process of pulverizing flaky graphite particles of which plane interval (d002) of (002) plane is 3.350 to 3.360 angstroms, and crystallite size (Lc) in the C-axis direction is at least 1000 angstroms or more, the graphite particles are chamfered into disk- or tablet-like form, which are then sifted, so as to obtain a graphite powder, of which mean particle size is defined within the range of 10 to 30 microns, mean thickness of thinnest portion is defined to be 3 to 9 microns, and X-ray diffraction peak intensity ratio of (110)/(004) by a wide angle X-ray diffraction method is defined to be 0.015 or more. By using this powder, the conventional problems are solved in a favorable balance, and, while achieving high energy density, the high rate discharge performance and reliability when left at a high temperature can be enhanced.

Abstract translation: 现有技术中的允许锂离子通过充电和放电可逆地重复嵌入和脱嵌的现有技术的石墨粉未能达到接近每1g的372mAh的理论容量的比容量。 此外，当尝试提高高速率充放电特性时，在高温下的储存特性存在问题。 本发明的目的是解决这些问题。 在（002）面的平面间隔（d002）为3.350〜3.360埃的片状石墨粒子粉碎的过程中，C轴方向的微晶尺寸（Lc）为1000以上，石墨粒子为 倒角成片状或片状，然后将其筛分，以获得石墨粉末，其平均粒度定义在10至30微米的范围内，最薄部分的平均厚度定义为3至 通过广角X射线衍射法将（110）/（004）的X射线衍射峰强度比定义为0.015以上。 通过使用这种粉末，常规问题得到平衡的解决，并且在实现高能量密度的同时，可以提高高放电性能和高温时的可靠性。

公开(公告)号：US06258477B1

公开(公告)日：2001-07-10

申请号：US09341457

申请日：1999-09-09

Applicant: Yoshihiro Kashihara ,  Katsuhiko Mori ,  Kenjin Masumoto ,  Kunio Tsuruta

Inventor： Yoshihiro Kashihara ,  Katsuhiko Mori ,  Kenjin Masumoto ,  Kunio Tsuruta

IPC: H01M200

CPC classification number: H01M2/345 ,  H01M2/1241 ,  H01M2/34 ,  H01M10/05

Abstract: An explosion-proof non-aqueous electrolyte battery is provided which has a current cutoff device for cutting off electrical connection within the battery with safety and certainty in the event of overcharge while remaining inoperable in normal use or in storage at an elevated temperature. A pair of an upper vent plate 1 and a lower vent plate 2 mechanically and electrically coupled with each other is provided on the sealing part of-the battery where the mechanical coupling of the pair of the upper vent plate 1 and the lower vent plate 2 is so configured as to rupture and cut off an electric current in the event the internal pressure of the battery case increases beyond a predetermined value, and the rupture pressure at which the mechanical coupling between the pair of upper vent plate 1 and the lower vent plate 2 is broken has been set to decrease as the spatial volume occupancy ratio of the battery increases.

Abstract translation: 提供一种防爆非水电解质电池，其具有电流切断装置，用于在过充电的情况下以安全和可靠的方式切断电池内的电连接，同时在正常使用或在升高的温度下保存不能操作。 在电池的密封部分上设置有一对机械和电气耦合的上排气板1和下排气板2，其中一对上排气板1和下排气板2的机械联接 在电池壳体的内部压力增加超过预定值的情况下破裂和断开电流，以及一对上部通风板1和下部通风板之间的机械联接的断裂压力 2被破坏已经被设置为随着电池的空间容量占有率的增加而减小。

公开(公告)号：US20100055418A1

公开(公告)日：2010-03-04

申请号：US12518469

申请日：2006-12-18

Applicant: Yorinobu Takamatsu ,  Hidetoshi Abe ,  Naoyuki Toriumi ,  Yoshihiro Kashihara

Inventor： Yorinobu Takamatsu ,  Hidetoshi Abe ,  Naoyuki Toriumi ,  Yoshihiro Kashihara

IPC: B32B3/10 ,  C08L39/04 ,  B32B27/30 ,  B32B7/12 ,  B05D5/00

CPC classification number: C08L33/02 ,  C08F220/06 ,  C08L33/14 ,  Y10T428/24868 ,  Y10T428/28 ,  Y10T428/31855

Abstract: (Meth)acrylic resin compositions and films are disclosed herein and comprise two or more kinds of polymer, particularly, a carboxyl group-containing (meth)acrylic polymer and a piperidinyl group-containing polymer. The carboxyl groups and piperidinyl groups form acid-base ionic bonds, so affinity between the two polymers is improved and the film exhibits good toughness. The films disclosed herein may be used as receptor sheets for printing processes such as electrostatic toner printing and inkjet printing.

Abstract translation: （甲基）丙烯酸树脂组合物和膜，其包含两种或更多种聚合物，特别是含羧基的（甲基）丙烯酸聚合物和含哌啶基的聚合物。 羧基和哌啶基形成酸碱离子键，因此改善了两种聚合物之间的亲和力，并且该膜表现出良好的韧性。 本文公开的膜可以用作印刷工艺的接受片，例如静电调色剂印刷和喷墨印刷。

公开(公告)号：US06242126B1

公开(公告)日：2001-06-05

申请号：US09068038

申请日：1998-07-23

Applicant: Katsuhiko Mori ,  Yoshihiro Kashihara ,  Yasushi Hirakawa ,  Kazuo Saito ,  Kazuhiko Watanabe

Inventor： Katsuhiko Mori ,  Yoshihiro Kashihara ,  Yasushi Hirakawa ,  Kazuo Saito ,  Kazuhiko Watanabe

IPC: H01M212

CPC classification number: H01M2/345 ,  H01M2/1235 ,  H01M2/1241 ,  H01M2/34

Abstract: The present invention relates to an explosion-proof seal plate for a sealed cell and a production method thereof and aims at providing an explosion-proof seal plate and production method thereof, wherein problems of a risk of explosion of a cell due to an excessive pressure inside the cell caused by abnormal generation of a gas through a chemical reaction accompanying over charge or erroneous use of the cell or damaging of electronic equipment using the cell as the power source are solved, ignition and other accidents can be prevented with a high accuracy by reliably cutting off an electric current when the cell internal pressure increases, and the increase in the resistance due to permeation of an electrolyte can be limited. In order to accomplish this aim, the present invention provides a thin portion 7a having a breaking strength of 18-24 kg/cm2 in the central portion of an upper metallic foil 7 made of aluminum and a thin portion 8a having a breaking strength of 10-13 kg/cm2 in the central portion of a lower metallic foil 8 made of aluminum, wherein the diameter A of the thin portion 7a of the upper metallic foil and the diameter B of the thin portion 8a of the lower metallic foil 8 satisfy the relation AB. The two metallic foils are welded at the central portions with an insulating gasket interposed, and encased in a metallic case 4 made of aluminum having 4 vent holes, on top of which a temperature dependent resistor 5 and a metallic cap 6 having 4 vent holes are then placed. A seal plate is obtained by sealing the periphery of the metallic case 4, with which it is possible to prevent accidents such as ignition and explosion of a cell by reliably allowing internal gas to exhaust in the event of generation of a large volume of gas under an abnormal condition of a sealed cell.

Abstract translation: 密封电池用防爆密封板及其制造方法技术领域本发明涉及密封电池用防爆密封板及其制造方法，其目的在于提供防爆密封板及其制造方法，其特征在于，由于过大的压力而导致电池爆炸的危险性 通过伴随过充电或错误使用电池的化学反应或使用电池作为动力源的电子设备的破坏，导致气体异常产生的电池内部，可以高精度地防止点火等事故。 当电池内部压力增加时可靠地切断电流，并且可以限制由于电解质渗透导致的电阻的增加。 为了达到上述目的，本发明提供一种在由铝制的上金属箔7的中央部分断裂强度为18-24kg / cm 2的薄壁部分7a和断裂强度为10°的薄壁部分8a -13kg / cm 2，其中上金属箔的薄部分7a的直径A和下金属箔8的薄部分8a的直径B满足下述的金属箔8的下部金属箔8的中心部分： 关系AB。 两个金属箔在中心部分被焊接在绝缘垫片上，并且被封装在由具有4个通气孔的铝制成的金属壳体4中，其上具有温度依赖电阻器5和具有4个通气孔的金属盖6 然后放置。 通过密封金属壳体4的周边来获得密封板，通过在发生大量气体的情况下可靠地允许内部气体排出，可以防止电池点火和爆炸等事故 密封电池的异常状况。