公开(公告)号：US20050287439A1

公开(公告)日：2005-12-29

申请号：US10508341

申请日：2003-03-17

申请人： Harunari Shimamura ,  Toshitada Sato ,  Takayuki Nakamoto ,  Yasuhiko Bito ,  Yoshiaki Nitta

发明人： Harunari Shimamura ,  Toshitada Sato ,  Takayuki Nakamoto ,  Yasuhiko Bito ,  Yoshiaki Nitta

IPC分类号： H01M4/131 ,  H01M4/134 ,  H01M4/38 ,  H01M4/52 ,  H01M4/525 ,  H01M10/052 ,  H01M10/0587 ,  H01M10/36 ,  H01M4/58

CPC分类号： H01M4/134 ,  H01M4/131 ,  H01M4/364 ,  H01M4/38 ,  H01M4/386 ,  H01M4/387 ,  H01M4/525 ,  H01M10/052 ,  H01M10/0587

摘要： The present invention relates to a negative electrode material for non-aqueous electrolyte secondary batteries, characterized in that the negative electrode material comprises a composite particle including solid phases A and B, the solid phase A being dispersed in the solid phase B, and the ratio (IA/IB) of the maximum diffracted X-ray intensity (IA) attributed to the solid phase A to the maximum diffracted X-ray intensity (IB) attributed to the solid phase B satisfies 0.001≦IA/IB≦0.1, in terms of a diffraction line obtained by a wide-angle X-ray diffraction measurement of the composite particle. This negative electrode material is capable of suppressing of pulverization thereof due to repeated cycles. Further, the use of this negative electrode material allows production of a non-aqueous electrolyte secondary battery having a high capacity and an excellent cycle life characteristic.

摘要翻译： 非水电解质二次电池用负极材料技术领域本发明涉及一种非水电解质二次电池用负极材料，其特征在于，所述负极材料包括固相A和固体B的复合粒子，固相A分散在固相B中， （固体A）的最大衍射X射线强度（I A A）的最大衍射峰值（I / A / B） 归因于固相B的X射线强度（I B B）满足0.001≤I≤A

公开(公告)号：US06761998B2

公开(公告)日：2004-07-13

申请号：US10088398

申请日：2002-03-18

申请人： Toshitada Sato ,  Yasuhiko Bito ,  Kazuhiro Okamura ,  Yoshiaki Nitta

发明人： Toshitada Sato ,  Yasuhiko Bito ,  Kazuhiro Okamura ,  Yoshiaki Nitta

IPC分类号： H01M458

CPC分类号： H01M4/13 ,  B22F1/025 ,  B22F2998/00 ,  B22F2999/00 ,  C22C1/04 ,  H01M4/02 ,  H01M4/38 ,  H01M4/405 ,  H01M10/052 ,  B22F2201/10 ,  B22F2201/02 ,  B22F2201/03 ,  B22F9/082 ,  B22F2201/00

摘要： A non-aqueous electrolyte secondary battery containing an alloy particle capable of absorbing and desorbing lithium in the negative electrode has a short cycle life and is insufficient in high-rate discharge characteristics, since the alloy particle is pulverized during charge/discharge cycles. In order to solve this problem, a negative electrode is employed, which comprises an alloy particle containing: at least two selected from the group consisting of metal elements and semimetal elements; oxygen; and nitrogen. It is preferred that the alloy particle have a phase A capable of electrochemically absorbing and desorbing lithium ion and a phase B having lithium ion conductivity or lithium ion permeability and that the phase B contain larger amounts of oxygen and nitrogen than the phase A.

摘要翻译： 含有能够在负极中吸收和解吸锂的合金粒子的非水电解质二次电池由于在充放电循环中粉碎合金粒子，所以循环寿命短，高倍率放电特性不足。 为了解决这个问题，使用负极，其包括含有选自金属元素和半金属元素中的至少两种的合金粒子; 氧; 和氮气。 合金粒子优选具有电化学吸收和解吸锂离子的相A和具有锂离子传导性或锂离子渗透性的相B，并且相B含有比A相更大的氧和氮。

公开(公告)号：US08734997B2

公开(公告)日：2014-05-27

申请号：US12444634

申请日：2007-10-09

申请人： Satoshi Shibutani ,  Hideharu Takezawa ,  Kazuyoshi Honda ,  Toshitada Sato

发明人： Satoshi Shibutani ,  Hideharu Takezawa ,  Kazuyoshi Honda ,  Toshitada Sato

IPC分类号： H01M4/58 ,  H01M4/13 ,  H01M4/02

CPC分类号： H01M4/02 ,  H01M4/134 ,  H01M10/052 ,  H01M2004/021 ,  H01M2004/027

摘要： A negative electrode 100 for a nonaqueous electrolytic secondary cell includes a current collector 1 and a plurality of active material bodies 2 formed on a surface of the current collector 1 at intervals; each active material body 2 contains a material for occluding or releasing lithium; and a plurality of projections 3 are formed on a part of a side surface of each active material body 2.

摘要翻译： 非水电解质二次电池用负极100包括：集电体1和间隔地形成在集电体1的表面上的多个活性物质体2; 每个活性材料体2含有用于吸留或释放锂的材料; 在活性物质2的侧面的一部分上形成有多个突起3。

公开(公告)号：US08067115B2

公开(公告)日：2011-11-29

申请号：US12030528

申请日：2008-02-13

申请人： Takayuki Shirane ,  Kaoru Inoue ,  Masaya Ugaji ,  Masato Fujikawa ,  Toshitada Sato

发明人： Takayuki Shirane ,  Kaoru Inoue ,  Masaya Ugaji ,  Masato Fujikawa ,  Toshitada Sato

IPC分类号： H01M4/13 ,  H01M4/58

CPC分类号： H01M10/0525 ,  H01M4/13 ,  H01M4/131 ,  H01M4/485 ,  H01M2004/027 ,  H01M2300/004

摘要： A non-aqueous electrolyte secondary battery comprising at least a negative electrode having a current collector provided thereon with convex portions and columnar bodies formed on the convex portions, each of the columnar bodies comprising n stages (where n≧2) of overlaid columnar body portions alternately tilted to different orientations along a longitudinal direction of the current collector, a positive electrode having a positive electrode current collector provided on both surfaces thereof with a positive electrode mixture layer containing a positive electrode active material capable of inserting and extracting lithium ions reversibly, and a separator interposed between the positive electrode and the negative electrode in a confronting manner, wherein tip portions of the columnar body portions at the uppermost stage of the columnar bodies on the negative electrode are tilted toward a trailing end of winding direction.

摘要翻译： 本发明提供一种非水电解质二次电池，其至少包括具有集电体的至少具有凸部的集电体和形成在所述凸部上的柱状体的负极，每个所述柱状体包括重叠的柱状体部的n个阶段（n≥2） 交替地沿着集电体的纵向方向倾斜到不同的取向，具有正极集电体的正电极在其两个表面上设置有包含能够可逆地插入和提取锂离子的正极活性材料的正电极混合物层，以及 以相对的方式插入在正极和负极之间的隔板，其中在负极上的柱状体的最上段的柱状体部的末端部朝向卷绕方向的后端倾斜。

公开(公告)号：US08003253B2

公开(公告)日：2011-08-23

申请号：US11451304

申请日：2006-06-13

申请人： Toshitada Sato ,  Yasuhiko Bito ,  Masaya Ugaji

发明人： Toshitada Sato ,  Yasuhiko Bito ,  Masaya Ugaji

IPC分类号： H01M4/13 ,  H01M4/134 ,  H01M4/48 ,  H01M10/0525 ,  H01M4/38

CPC分类号： H01M4/131 ,  H01M4/134 ,  H01M4/139 ,  H01M4/1391 ,  H01M4/38 ,  H01M4/386 ,  H01M4/387 ,  H01M4/485 ,  H01M10/052 ,  H01M10/0567 ,  H01M10/0568 ,  H01M10/0587 ,  H01M10/4235 ,  H01M2004/027 ,  H01M2300/002

摘要： A non-aqueous electrolyte secondary battery including: a positive electrode; a negative electrode, and a non-aqueous electrolyte. The negative electrode includes a negative electrode active material that includes at least Si. The non-aqueous electrolyte includes lithium hexafluorophosphate as a main supporting electrolyte and has an acid content of not less than 50 ppm and not more than 200 ppm. The negative electrode has a potential of not less than 0.6 V and not more than 1.5 V relative to a Li electrode at an end-of-discharge voltage of the battery. The battery is prevented from suffering degradation of storage characteristics caused by the dissolution reaction of Si from the negative electrode during charging and the precipitation reaction of the dissolved Si.

摘要翻译： 一种非水电解质二次电池，包括：正极; 负极和非水电解质。 负极包括至少包含Si的负极活性物质。 非水电解质包括六氟磷酸锂作为主要的电解质，其酸含量不小于50ppm且不大于200ppm。 负极在电池的放电终止电压下相对于Li电极具有不小于0.6V且不大于1.5V的电位。 防止电池在充电过程中Si与负极的溶解反应和溶解的Si的沉淀反应引起的储存特性降低。

公开(公告)号：US20110129736A1

公开(公告)日：2011-06-02

申请号：US13056143

申请日：2009-07-15

申请人： Yoshiyuki Muraoka ,  Toshitada Sato ,  Yasuhiko Hina ,  Akira Nagasaki

发明人： Yoshiyuki Muraoka ,  Toshitada Sato ,  Yasuhiko Hina ,  Akira Nagasaki

IPC分类号： H01M4/66 ,  H01M4/26

CPC分类号： H01M10/0431 ,  H01M2/16 ,  H01M4/0435 ,  H01M4/13 ,  H01M4/139 ,  H01M4/661 ,  H01M10/05 ,  Y10T29/49108 ,  Y10T29/49112 ,  Y10T29/49115

摘要： A nonaqueous electrolyte secondary battery includes: a positive electrode 4 including a positive electrode current collector and a positive electrode material mixture layer containing a positive electrode active material and a binder and provided on the positive electrode current collector; a negative electrode 5; a porous insulating layer 6 interposed between the positive electrode 4 and the negative electrode 5; and a nonaqueous electrolyte. The positive electrode current collector contains aluminium. The positive electrode current collector has an average crystal grain size of 1.0 μm or more.

摘要翻译： 非水电解质二次电池包括：具有正极集电体的正极4和含有正极活性物质和粘合剂的正极合剂层，设置在正极集电体上; 负极5; 夹在正极4和负极5之间的多孔绝缘层6; 和非水电解质。 正极集电体含有铝。 正极集电体的平均结晶粒径为1.0μm以上。

公开(公告)号：US07919205B2

公开(公告)日：2011-04-05

申请号：US11266299

申请日：2005-11-04

申请人： Yasutaka Kogetsu ,  Kazuyoshi Honda ,  Toshitada Sato ,  Hiroshi Yoshizawa

发明人： Yasutaka Kogetsu ,  Kazuyoshi Honda ,  Toshitada Sato ,  Hiroshi Yoshizawa

IPC分类号： H01M4/00

CPC分类号： H01M4/485 ,  H01M4/0419 ,  H01M4/0421 ,  H01M4/131 ,  H01M4/1391 ,  H01M4/525 ,  H01M2004/021 ,  H01M2004/027

摘要： A negative electrode for a lithium ion secondary battery of the present invention includes a current collector and an active material layer carried on the current collector. The active material layer contains silicon and oxygen. In the thickness direction of the active material layer, an oxygen ratio of the active material is greater at the side of the active material layer in contact with the current collector than at the side of the active material layer not in contact with the current collector. The active material layer contains no binder. By using the negative electrode described above, it is possible to provide a high capacity lithium ion secondary battery having superior high rate charge/discharge characteristics and excellent cycle characteristics.

摘要翻译： 本发明的锂离子二次电池用负极包括在集电体上承载的集电体和活性物质层。 活性物质层含有硅和氧。 在活性物质层的厚度方向上，活性物质层的与集电体接触的一侧的活性物质的氧比在与集电体不接触的活性物质层侧相比更大。 活性物质层不含粘合剂。 通过使用上述负极，可以提供具有优异的高倍率充放电特性和优异的循环特性的高容量锂离子二次电池。

公开(公告)号：US07914930B2

公开(公告)日：2011-03-29

申请号：US11600103

申请日：2006-11-16

申请人： Toshitada Sato ,  Hideharu Takezawa ,  Syoichi Imashiku ,  Kazuyoshi Honda

发明人： Toshitada Sato ,  Hideharu Takezawa ,  Syoichi Imashiku ,  Kazuyoshi Honda

IPC分类号： H01M4/48

CPC分类号： H01M10/058 ,  H01M4/13 ,  H01M4/485 ,  H01M10/0525 ,  H01M2004/027 ,  Y10T29/49108 ,  Y10T29/49112 ,  Y10T29/49115

摘要： A non-aqueous electrolyte secondary battery having both high capacity and long-life is provided by solving the problem of the large irreversible capacity of a negative electrode active material. The non-aqueous electrolyte secondary battery is produced by a method including the steps of: reacting lithium with a negative electrode active material by bringing a metal film that is composed mainly of lithium into contact with a surface of a negative electrode active material layer; and thereafter combining the negative electrode with a positive electrode to form an electrode assembly. The metal film composed mainly of lithium is preferably formed on a carrier that does not chemically react with lithium, and the metal film on the carrier is preferably brought into contact with the negative electrode active material layer while heating and applying a pressure thereto.

摘要翻译： 通过解决负极活性物质的不可逆容量大的问题，提供了高容量，长寿命的非水电解质二次电池。 非水电解质二次电池是通过以下方法制造的：通过使主要由锂组成的金属膜与负极活性物质层的表面接触而使锂与负极活性物质反应; 然后将负极与正极组合以形成电极组件。 主要由锂组成的金属膜优选形成在不与锂发生化学反应的载体上，并且载体上的金属膜优选在加热并施加压力的同时与负极活性物质层接触。

公开(公告)号：US07807294B2

公开(公告)日：2010-10-05

申请号：US11631489

申请日：2005-09-14

申请人： Toshitada Sato ,  Yasutaka Kogetsu ,  Hiroshi Yoshizawa

发明人： Toshitada Sato ,  Yasutaka Kogetsu ,  Hiroshi Yoshizawa

IPC分类号： H01M6/00 ,  H01M4/02 ,  H01M4/64 ,  H01M4/72

CPC分类号： H01M10/052 ,  H01M4/0416 ,  H01M4/0421 ,  H01M4/0426 ,  H01M4/0428 ,  H01M4/0471 ,  H01M4/136 ,  H01M4/1397 ,  H01M4/366 ,  H01M4/58 ,  H01M4/621 ,  H01M4/661 ,  H01M4/70 ,  H01M2004/021

摘要： A negative electrode for a non-aqueous electrolyte secondary battery, including: an active material layer capable of electrochemically absorbing and desorbing at least Li; and a current collector sheet that supports the active material layer thereon and that does not react with Li, wherein the active material layer includes a plurality of deposited films or sintered films supported on a surface of the current collector sheet, and each of the deposited films or sintered films is provided with at least one groove formed in a side surface thereof, the groove extending from a top surface side towards the current collector sheet side thereof. It is preferable that the plurality of deposited films or sintered films are arranged in a grid configuration, a staggered grid configuration or a honeycomb configuration on a surface of the current collector sheet. It is preferable that, in a discharged state, the plurality of deposited films or sintered films have an average height of not less than 1 μm and not more than 30 μm.

摘要翻译： 一种非水电解质二次电池用负极，其特征在于，包括：能够至少电化学吸收解吸的Li的活性物质层; 以及在其上支撑活性物质层并且不与Li反应的集电体片，其中活性物质层包括多个沉积膜或负载在集电体片表面上的烧结膜，并且每个沉积膜 或烧结膜设置有形成在其侧表面中的至少一个槽，所述槽从顶表面侧朝向集电体片侧延伸。 多个沉积膜或烧结膜优选以集电体片的表面上的格栅构造，交错格栅构造或蜂窝构造布置。 优选的是，在放电状态下，多个沉积膜或烧结膜的平均高度不小于1μm且不大于30μm。

公开(公告)号：US07597997B2

公开(公告)日：2009-10-06

申请号：US10545760

申请日：2004-05-21

申请人： Toshitada Sato ,  Harunari Shimamura ,  Hideaki Ohyama ,  Yasuhiko Bito

发明人： Toshitada Sato ,  Harunari Shimamura ,  Hideaki Ohyama ,  Yasuhiko Bito

IPC分类号： H01M4/00 ,  H01M4/56 ,  H01M4/58

CPC分类号： H01M10/052 ,  H01M4/134 ,  H01M4/1395 ,  H01M4/362 ,  H01M4/38 ,  H01M4/386 ,  H01M4/387 ,  H01M4/621 ,  Y10T29/49115

摘要： A nonaqueous electrolyte secondary battery with excellent charging/discharging cycle characteristics is provided, more specifically a nonaqueous electrolyte secondary battery in which deterioration of the conductivity of a negative electrode due to charging/discharging cycle is suppressed and a method for manufacturing the same are provided. The nonaqueous electrolyte secondary battery includes: a positive electrode and a negative electrode that are capable of reversibly absorbing and desorbing Li ions; and a nonaqueous electrolyte having lithium ion conductivity. The negative electrode includes a collector and active material particles that are disposed on a surface of the collector. The active material particles include Si and at least one element R selected from the group consisting of Sn, In, Ga, Pb and Bi. Metallic bond including the element R is formed between the active material particles.

摘要翻译： 提供了具有优异的充放电循环特性的非水电解质二次电池，更具体地说，提供了抑制由于充放电循环引起的负极导电性劣化的非水电解质二次电池及其制造方法。 非水电解质二次电池包括：能够可逆地吸收和解吸Li离子的正极和负极; 和具有锂离子传导性的非水电解质。 负极包括设置在集电体的表面上的集电体和活性物质颗粒。 活性物质颗粒包括Si和选自Sn，In，Ga，Pb和Bi中的至少一种元素R. 在活性物质粒子之间形成包含元素R的金属键。