公开(公告)号：US06335122B1

公开(公告)日：2002-01-01

申请号：US09402122

申请日：1999-12-16

申请人： Shinichiro Yamada ,  Hiroshi Imoto ,  Hideto Azuma ,  Tadashi Senoo ,  Koji Sekai ,  Masayuki Nagamine ,  Atsuo Omaru ,  Naohiro Sonobe ,  Jiro Masuko ,  Minoru Ishikawa

发明人： Shinichiro Yamada ,  Hiroshi Imoto ,  Hideto Azuma ,  Tadashi Senoo ,  Koji Sekai ,  Masayuki Nagamine ,  Atsuo Omaru ,  Naohiro Sonobe ,  Jiro Masuko ,  Minoru Ishikawa

IPC分类号： H01M458

CPC分类号： H01M4/587 ,  H01M4/133 ,  H01M4/505 ,  H01M4/525 ,  H01M10/0525 ,  H01M2004/021

摘要： A carbonaceous electrode having improved capacities for doping and dedoping of a cell active substance, such as lithium, and suitable for a non-aqueous solvent secondary battery, is constituted by a carbonaceous material having a true density as measured by a butanol substitution method of at most 1.46 g/cm3, a true density as measured by a helium substitution method of at least 1.7 g/cm3, a hydrogen-to-carbon atomic ratio H/C of at most 0.15 as measured according to elementary analysis, a BET specific surface area of at most 50 m2/g as measured by nitrogen adsorption BET method, and a carbon dioxide adsorption capacity of at least 10 ml/g. The carbonaceous material is advantageously produced by carbonizing an organic material originated from bamboo genera of family Gramineae, particularly genus Pleioblastus or Bambusa, at 1000-1400° C. under a reduced pressure or under a flowing inert gas stream to provide an appropriate porous structure.

摘要翻译： 具有改善的电池活性物质（例如锂）的掺杂和去掺杂的适用于非水溶剂二次电池的容量的碳质电极由具有真实密度的碳质材料构成，所述碳质材料通过丁醇取代方法 最大1.46g / cm 3，通过氦取代方法测定的至少1.7g / cm 3的真实密度，根据元素分析测定的氢/碳原子比H / C至多为0.15，BET比表面积 通过氮吸附BET法测定的面积为至多50m 2 / g，二氧化碳吸附容量至少为10ml / g。 碳质材料有利地通过在1000-1400℃下在减压下或在流动的惰性气流下碳化源自禾本科的竹属，特别是Pleioblastus或Bambusa的竹属的有机材料来产生，以提供合适的多孔结构。

公开(公告)号：US06569570B2

公开(公告)日：2003-05-27

申请号：US09355481

申请日：1999-10-18

申请人： Naohiro Sonobe ,  Minoru Ishikawa ,  Jiro Masuko

发明人： Naohiro Sonobe ,  Minoru Ishikawa ,  Jiro Masuko

IPC分类号： H01M458

CPC分类号： C04B35/6267 ,  C01B32/05 ,  C04B35/524 ,  C04B35/528 ,  C04B35/6268 ,  C04B2235/422 ,  C04B2235/48 ,  C04B2235/5436 ,  H01M4/133 ,  H01M4/587 ,  H01M10/052 ,  H01M2004/021

摘要： A carbonaceous electrode having improved capacities for doping and dedoping of a cell active substance, such as lithium, and suitable for a non-aqueous secondary battery, is constituted by a carbonaceous material obtained by carbonizing an aromatic condensation polymer formed by condensation of an aromatic compound having a phenolic hydroxy group and an aldehyde. The carbonaceous material is characterized by an atomic ratio H/C between hydrogen atoms and carbon atoms of below 0.1, a carbon dioxide adsorption capacity of at least 10 ml/g, and an X-ray scattering intensity ratio IW/ID of at least 0.25, wherein IW and ID represent scattering intensities as measured in a wet state and a dry state, respectively, at a parameter s=2·sin &thgr;/&lgr; of 0.5 nm−1, wherein &thgr; denotes a scattering angle and &lgr; denotes a wavelength of X-rays in X-ray small-angle scattering measurement.

摘要翻译： 具有改善的诸如锂等细胞活性物质的掺杂和去掺杂的适用于非水二次电池的能力的碳质电极是由通过将芳族化合物缩合形成的芳香族缩聚物碳化而获得的碳质材料构成的 具有酚羟基和醛。 碳质材料的特征在于氢原子和碳原子之间的原子比H / C低于0.1，二氧化碳吸附容量至少为10ml / g，X射线散射强度比IW / ID为至少0.25 其中IW和ID分别在湿态和干态下分别以0.5nm-1的参数s =2.sinθ/ lambd测量的散射强度，其中θ表示散射角，lambd表示波长 X射线在X射线小角度散射测量。

公开(公告)号：US5527643A

公开(公告)日：1996-06-18

申请号：US295066

申请日：1994-08-26

申请人： Naohiro Sonobe ,  Takao Iwasaki ,  Jiro Masuko

发明人： Naohiro Sonobe ,  Takao Iwasaki ,  Jiro Masuko

IPC分类号： H01M4/58 ,  C01B31/04 ,  C04B35/00 ,  H01B1/04

CPC分类号： H01M4/583

摘要： A non-aqueous solvent-type secondary battery having a large charge-discharge capacity and exhibiting a high utilization rate of an active substance, such as lithium, and an excellent charge-discharge cycle characteristic, can be constituted by using a carbonaceous electrode material having a specific microtexture. The carbonaceous electrode material is characterized by having an average (002)-plane spacing d.sub.002 of 0.336-0.375 nm and a crystallite size in c-axis direction Lc.sub.(002) of at most 50 nm, respectively, as measured by X-ray diffraction method, and an optically anisotropic texture showing a fine mosaic texture when observed through a polarizing microscope. The carbonaceous material may suitably be produced through a process including the steps of: crosslinking a tar or pitch of a petroleum or coal origin, and carbonizing the crosslinked tar or pitch at a temperature of at least 800.degree. C. under a reduced pressure or in an inert gas atmosphere.

摘要翻译： 可以通过使用具有充电 - 放电容量大且充电 - 放电循环特性优异的锂的活性物质的高利用率和非常好的充放电循环特性的非水溶剂型二次电池， 一个特定的微观结构。 碳质电极材料的特征在于，通过X射线衍射测定，其平均（002）面间距d002为0.336〜0.375nm，c轴方向Lc（002）的微晶尺寸分别为50nm以下 方法和通过偏光显微镜观察时显示出细小的马赛克纹理的光学各向异性织构。 含碳材料可以适当地通过包括以下步骤的方法生产：包括以下步骤：交联石油或煤原料的焦油或沥青，并且在减压下或在减压下在至少800℃的温度下将交联焦油或沥青碳化 惰性气体气氛。

公开(公告)号：US5741472A

公开(公告)日：1998-04-21

申请号：US518357

申请日：1995-08-23

申请人： Naohiro Sonobe ,  Jiro Masuko ,  Takao Iwasaki

发明人： Naohiro Sonobe ,  Jiro Masuko ,  Takao Iwasaki

IPC分类号： C01B31/00 ,  H01M4/133 ,  H01M4/58 ,  H01M4/587 ,  H01M10/052 ,  H01M10/36 ,  C09C1/56

CPC分类号： H01M4/133 ,  C01B31/005 ,  H01M4/587 ,  H01M10/052

摘要： A carbonaceous electrode having improved capacities for doping and dedoping of a cell active substance, such as lithium, and suitable for a non-aqueous solvent-type secondary battery, is constituted by a carbonaceous material having a specific microtexture. The carbonaceous material is characterized by an average (002)-plane spacing of at least 0.365 nm according to X-ray diffraction method, and also a ratio .rho..sub.H /.rho..sub.B of at least 1.15 wherein .rho..sub.H denotes a density measured by using helium gas as a substitution medium and .rho..sub.B denotes a density measured by using butanol as a substitution medium.

摘要翻译： 具有改善的电池活性物质（例如锂）的掺杂和脱掺杂性并且适用于非水溶剂型二次电池的碳质电极由具有特定微结构的碳质材料构成。 碳质材料的特征在于根据X射线衍射法的至少0.365nm的平均（002）面间距，并且rho H / rho B的比值至少为1.15，其中rho H表示通过使用氦测量的密度 气体作为取代介质，rho B表示通过使用丁醇作为取代介质测定的密度。

公开(公告)号：US06303249B1

公开(公告)日：2001-10-16

申请号：US08884328

申请日：1997-06-27

申请人： Naohiro Sonobe ,  Jiro Masuko ,  Fumio Shibata

发明人： Naohiro Sonobe ,  Jiro Masuko ,  Fumio Shibata

IPC分类号： H01M458

CPC分类号： H01M4/133 ,  H01M4/1393 ,  H01M4/587 ,  H01M10/052

摘要： A carbonaceous electrode having improved capacities for doping and dedoping of a cell active substance, such as lithium, and suitable for a non-aqueous solvent-type secondary battery, is constituted by a carbonaceous material having a pore volume of at least 0.55 ml/g of pores having a pore diameter of at most 5 &mgr;m as measured by mercury injection method, a potassium content of at most 0.5 wt. % as measured by fluorescent X-ray analysis, and a specific surface area of at most 100 m2/g as measured by nitrogen adsorption BET method. The carbonaceous material is advantageous produced by carbonizing a carbon precursor of plant origin having a potassium content of at most 0.5 wt. % as measured by fluorescent X-ray analysis, in contact with a stream of an inert gas optionally containing a halogen gas at a temperature of 700-1500° C.

摘要翻译： 具有改善的电池活性物质如锂的掺杂和去掺杂并适用于非水溶剂型二次电池的碳质电极由孔体积为至少0.55ml / g的碳质材料构成 的通过汞注入法测量的孔径为至多5μm的孔，钾含量至多为0.5wt。 通过荧光X射线分析测量，并且通过氮吸附BET法测量的最大100m 2 / g的比表面积。 碳质材料通过碳化钾含量至多为0.5重量％的植物来源的碳前体而有利产生。 通过荧光X射线分析测量的，在700-1500℃的温度下与任选地含有卤素气体的惰性气体流接触。

公开(公告)号：US5721071A

公开(公告)日：1998-02-24

申请号：US718939

申请日：1996-09-24

申请人： Naohiro Sonobe ,  Jiro Masuko ,  Akio Hoshi

发明人： Naohiro Sonobe ,  Jiro Masuko ,  Akio Hoshi

IPC分类号： C01B31/02 ,  B82Y99/00 ,  C01B31/04 ,  C04B35/524 ,  D01F9/24 ,  H01M4/587 ,  H01M10/05 ,  H01M4/58

CPC分类号： H01M4/587 ,  C04B35/524 ,  D01F9/24 ,  H01M10/0525 ,  H01M4/133

摘要： A graphitic electrode material suitable for use in a non-aqueous solvent-type secondary battery is provided. The graphitic material is characterized by an average (002)-plane spacing d.sub.002 of 0.336-0.345 nm, a crystallite size along c-axis L.sub.c(002) of 15-60 nm, and a lattice strain .epsilon. of at most 2.0.times.10.sup.-2 nm.sup.-1 as measured by X-ray diffraction method. The graphitic material may suitably be formed through a process including the steps of: thermally polymerizing a condensed polycyclic aromatic compound in the presence of a Lewis acid catalyst to form a polymerizate, and heat-treating the polymerizate at 2100.degree.-2600.degree. C. under a reduced pressure or in an inert gas atmosphere. The graphitic electrode material exhibits large doping and dedoping capacities which provide only a small difference therebetween (i.e., irreversible capacity) and cause only a small decrease at the time of quick charging and discharging.

摘要翻译： 提供适用于非水溶剂型二次电池的石墨电极材料。 石墨材料的特征在于平均（002）面间距d002为0.336-0.345nm，c轴Lc（002）为15-60nm的微晶尺寸，晶格应变ε为至多2.0×10 -2 nm-1，通过X射线衍射法测定。 石墨材料可以适当地通过包括以下步骤的方法形成：在路易斯酸催化剂的存在下将缩合的多环芳族化合物热聚合以形成聚合物，并在2100°-2600℃下热处理聚合物 减压或惰性气体气氛。 石墨电极材料表现出很大的掺杂和去掺杂能力，其在它们之间只有很小的差异（即不可逆容量），并且在快速充放电时仅引起小的减小。

公开(公告)号：US5616436A

公开(公告)日：1997-04-01

申请号：US518306

申请日：1995-08-23

申请人： Naohiro Sonobe ,  Minoru Ishikawa ,  Takao Iwasaki

发明人： Naohiro Sonobe ,  Minoru Ishikawa ,  Takao Iwasaki

IPC分类号： C01B31/02 ,  B82Y30/00 ,  B82Y99/00 ,  H01M4/583 ,  H01M6/10 ,  H01M10/05 ,  H01M4/04 ,  H01M4/36 ,  H01M4/58

CPC分类号： H01M4/133 ,  H01M10/052 ,  H01M4/587 ,  H01M2004/027 ,  H01M6/10

摘要： A carbonaceous electrode having improved capacities for doping and dedoping of a cell active substance, such as lithium, and suitable for a non-aqueous solvent-type secondary battery, is constituted by a carbonaceous material having a specific microtexture. The carbonaceous material is characterized by it's ability to provide an electrochemically lithium-doped product showing a main resonance peak which is shifted by 80-200 ppm to a lower magnetic field side from a resonance line of LiCl as a reference substance when subjected to .sup.7 Li-NMR spectroscopy analysis.

摘要翻译： 具有改善的电池活性物质（例如锂）的掺杂和去掺杂的适用于非水溶剂型二次电池的碳质电极由具有特定微结构的碳质材料构成。 碳质材料的特征在于能够提供一种电化学锂掺杂产物，其表现出主谐振峰，当主要谐振峰经受7Li-1时，主谐振峰从作为对照物质的LiCl的共振线偏移到较低的磁场侧， NMR光谱分析。

公开(公告)号：US07235329B2

公开(公告)日：2007-06-26

申请号：US11378300

申请日：2006-03-20

申请人： Minoru Ishikawa ,  Kazuhiko Shimizu ,  Takashi Wakahoi ,  Shuji Morinishi ,  Naohiro Sonobe ,  Akio Hoshi

发明人： Minoru Ishikawa ,  Kazuhiko Shimizu ,  Takashi Wakahoi ,  Shuji Morinishi ,  Naohiro Sonobe ,  Akio Hoshi

IPC分类号： H01M4/58

CPC分类号： H01M4/583 ,  H01M4/02 ,  H01M4/364 ,  H01M4/38 ,  H01M4/46 ,  H01M10/052 ,  H01M2004/027

摘要： An electrode material comprising a powdery mixture of a metal material (particularly, an intermetallic compound) and a capacitive carbon material each capable of doping and dedoping lithium, and an optionally added fine electroconductive additive, and containing the metal material and the capacitive carbon material in amounts of 5-60 wt. % and 40-95 wt. %, respectively, is used as an active substance for an electrode, particularly a negative electrode, of a non-aqueous solvent secondary cell. As a result, there is provided a non-aqueous solvent secondary cell which has large charge-discharge capacities, a small irreversible capacity determined as a difference between the doping capacity and the de-doping capacity, and also excellent cycle characteristics.

摘要翻译： 一种电极材料，其包含金属材料（特别是金属间化合物）和能够掺杂和去掺杂锂的电容性碳材料的粉末混合物，以及任选加入的细导电添加剂，并且含有金属材料和电容性碳材料 用量5-60wt。 ％和40-95wt。 ％分别用作非水溶剂二次电池的电极，特别是负极的活性物质。 结果，提供了一种非水溶剂二次电池，其具有大的充电放电容量，小的不可逆容量被确定为掺杂容量和去掺杂能力之间的差异，并且还具有优异的循环特性。

公开(公告)号：US07147970B2

公开(公告)日：2006-12-12

申请号：US10258169

申请日：2002-02-20

申请人： Minoru Ishikawa ,  Kazuhiko Shimizu ,  Takashi Wakahoi ,  Shuji Morinishi ,  Naohiro Sonobe ,  Akio Hoshi

发明人： Minoru Ishikawa ,  Kazuhiko Shimizu ,  Takashi Wakahoi ,  Shuji Morinishi ,  Naohiro Sonobe ,  Akio Hoshi

IPC分类号： H01M4/48

CPC分类号： H01M4/583 ,  H01M4/02 ,  H01M4/364 ,  H01M4/38 ,  H01M4/46 ,  H01M10/052 ,  H01M2004/027

摘要： An electrode material comprising a powdery mixture of a metal material (particularly, an intermetallic compound) and a capacitive carbon material each capable of doping and dedoping lithium, and an optionally added fine electroconductive additive, and containing the metal material and the capacitive carbon material in amounts of 5–60 wt. % and 40–95 wt. %, respectively, is used as an active substance for an electrode, particularly a negative electrode, of a non-aqueous solvent secondary cell. As a result, there is provided a non-aqueous solvent secondary cell which has large charge-discharge capacities, a small irreversible capacity determined as a difference between the doping capacity and the de-doping capacity, and also excellent cycle characteristics.

公开(公告)号：US20060159995A1

公开(公告)日：2006-07-20

申请号：US11378300

申请日：2006-03-20

申请人： Minoru Ishikawa ,  Kazuhiko Shimizu ,  Takashi Wakahoi ,  Shuji Morinishi ,  Naohiro Sonobe ,  Akio Hoshi

发明人： Minoru Ishikawa ,  Kazuhiko Shimizu ,  Takashi Wakahoi ,  Shuji Morinishi ,  Naohiro Sonobe ,  Akio Hoshi

IPC分类号： H01M4/58 ,  H01M4/62

CPC分类号： H01M4/583 ,  H01M4/02 ,  H01M4/364 ,  H01M4/38 ,  H01M4/46 ,  H01M10/052 ,  H01M2004/027

摘要： An electrode material comprising a powdery mixture of a metal material (particularly, an intermetallic compound) and a capacitive carbon material each capable of doping and dedoping lithium, and an optionally added fine electroconductive additive, and containing the metal material and the capacitive carbon material in amounts of 5-60 wt. % and 40-95 wt. %, respectively, is used as an active substance for an electrode, particularly a negative electrode, of a non-aqueous solvent secondary cell. As a result, there is provided a non-aqueous solvent secondary cell which has large charge-discharge capacities, a small irreversible capacity determined as a difference between the doping capacity and the de-doping capacity, and also excellent cycle characteristics.