公开(公告)号：US06716557B2

公开(公告)日：2004-04-06

申请号：US09859060

申请日：2001-05-16

申请人： Atsuo Omaru ,  Naoyuki Nakajima ,  Masayuki Nagamine

发明人： Atsuo Omaru ,  Naoyuki Nakajima ,  Masayuki Nagamine

IPC分类号： H01M458

CPC分类号： D01F11/12 ,  D01F9/15 ,  H01M4/0433 ,  H01M4/133 ,  H01M4/587 ,  H01M10/0525 ,  H01M2004/021 ,  H01M2004/022 ,  H01M2300/004

摘要： Carbon fiber having cross sectional shape which satisfies area replenishment rate of 0.8 or more is used as anode material for non-aqueous electrolyte secondary battery. Alternatively, since value of fractal dimension of cross section high order structure of the random radial type carbon fiber can be utilized as material parameter for evaluating the cross sectional structure, carbon fiber in which the value of the fractal dimension is caused to fall within the range from 1.1 to 1.8 and the crystallinity has been controlled such that it falls within reasonable range is used as anode material for non-aqueous electrolyte secondary battery. Further, carbon fiber having cross section high order structure such that the central portion is radial type structure and the surface layer portion is random radial type structure is used as anode material for non-aqueous electrolyte secondary battery. Furthermore, it is also effective to use carbon fiber having notch structure at the cross section. In addition, graphitized carbon fiber having cross sectional portions different in the crystal structure at predetermined periods in the fiber length direction is made up. By crushing the graphitized carbon fiber thus obtained, carbon fiber crushed powder having less unevenness and predetermined aspect ratio can be easily made up.

摘要翻译： 作为非水电解质二次电池的负极材料，使用满足0.8以上的区域补充率的截面形状的碳纤维。 或者，由于可以利用随机径向型碳纤维的横截面高阶结构的分形尺寸的值作为用于评价截面结构的材料参数，其中使分形维数的值落在范围内的碳纤维 1.1〜1.8，结晶度控制在合理范围内，用作非水电解质二次电池的负极材料。 此外，作为非水电解质二次电池的负极材料，使用具有横截面高阶结构的碳纤维，使得中心部分是径向型结构，表层部分是随机径向型结构。 此外，在截面上使用具有凹口结构的碳纤维也是有效的。 此外，在纤维长度方向上，在规定时间内，形成具有晶体结构不同的截面部分的石墨化碳纤维。 通过粉碎由此获得的石墨化碳纤维，可以容易地制成具有较小不均匀性和预定纵横比的碳纤维粉碎粉末。

公开(公告)号：US5847188A

公开(公告)日：1998-12-08

申请号：US837349

申请日：1997-04-17

申请人： Keiichi Yokoyama ,  Akio Hiwara ,  Shigeru Fujita ,  Atsuo Omaru

发明人： Keiichi Yokoyama ,  Akio Hiwara ,  Shigeru Fujita ,  Atsuo Omaru

IPC分类号： C07C69/96 ,  H01M6/16 ,  H01M10/0569

CPC分类号： H01M10/0569 ,  C07C69/96 ,  H01M6/164 ,  H01M2300/0034

摘要： A novel carbonate compound represented by the general formula �I!: R.sup.1 CH.sub.2 O--CO--OCH.sub.2 R.sup.2 �I! wherein R.sup.1 represents a hydrogen atom, an alkyl group or an alkyl group substituted with one or more halogen atoms, and R.sup.2 represent an alkyl group having no hydrogen atom at the .alpha.-position thereof or an alkyl group substituted with one or more halogen atoms having no hydrogen atom at the .alpha.-position thereof, with the proviso that R.sup.1 is not identical to R.sup.2, which has excellent properties as solvent, is disclosed. A non-aqueous electrolytic solution and a battery utilizing the novel carbonate compound are also disclosed.

摘要翻译： 由通式[I]表示的新型碳酸酯化合物：R1CH2O-CO-OCH2R2 [I]其中R1表示氢原子，烷基或被一个或多个卤素原子取代的烷基，R2表示具有 在α位没有氢原子或被一个或多个在其位置没有氢原子的卤素原子取代的烷基，条件是R 1与作为溶剂具有优异性能的R 2不同，是 披露 还公开了一种非水电解液和利用该新型碳酸酯化合物的电池。

公开(公告)号：US5714281A

公开(公告)日：1998-02-03

申请号：US851481

申请日：1997-05-05

申请人： Yoshiaki Naruse ,  Shigeru Fujita ,  Atsuo Omaru

发明人： Yoshiaki Naruse ,  Shigeru Fujita ,  Atsuo Omaru

IPC分类号： H01M4/58 ,  H01M4/587 ,  H01M10/0525 ,  H01M10/0569 ,  H01M10/36 ,  H01M6/14

CPC分类号： H01M10/0569 ,  H01M10/0525 ,  H01M4/587

摘要： A non-aqueous liquid electrolyte secondary cell including a cathode formed of metal lithium, a lithium alloy or a material capable of doping/undoping lithium, an anode and a non-aqueous liquid electrolyte formed by an electrolyte dissolved in a non-aqueous solvent. The non-aqueous solvent contains vinylene carbonate. The non-aqueous liquid electrolyte secondary cell may be advantageously employed as a power supply source for a small-sized lightweight portable electronic equipment.

摘要翻译： 包括由金属锂形成的阴极，锂合金或能够掺杂/不掺杂锂的材料的非水电解液二次电池，由溶解在非水溶剂中的电解质形成的阳极和非水电解液。 非水溶剂含有碳酸亚乙烯酯。 非水电解液二次电池可以有利地用作小尺寸轻型便携式电子设备的电源。

公开(公告)号：US5561005A

公开(公告)日：1996-10-01

申请号：US233992

申请日：1994-04-28

申请人： Atsuo Omaru ,  Shigeru Fujita ,  Keiichi Yokoyama ,  Akio Hihara

发明人： Atsuo Omaru ,  Shigeru Fujita ,  Keiichi Yokoyama ,  Akio Hihara

IPC分类号： H01M4/58 ,  H01M10/40

CPC分类号： H01M10/0569 ,  H01M4/583

摘要： A secondary battery having a non-aqueous electrolyte according to the present invention includes a negative electrode using a carbonaceous material capable of doping and undoping lithium ions as the anode material, a positive electrode using a composite oxide of lithium and-a transition metal as the cathode material, and a non-aqueous electrolyte formed by dissolving an electrolyte into a non-aqueous solvent, the non-aqueous solvent containing methylethyl carbonate and dimethyl carbonate. According to the present invention, a secondary battery having a non-aqueous electrolyte in which normal charge/discharge reactions can be maintained even in battery overcharge and after high-temperature storage of the charged battery, and which exhibits high energy density, long cycle life, high safety performance and excellent environment-resistance, can be produced.

摘要翻译： 根据本发明的具有非水电解质的二次电池包括使用能够掺杂和去掺杂锂离子作为负极材料的碳质材料的负极，使用锂和过渡金属的复合氧化物的正极作为 阴极材料和通过将电解质溶解在非水溶剂中形成的非水电解质，所述非水溶剂含有碳酸甲乙酯和碳酸二甲酯。 根据本发明，具有非水电解质的二次电池，即使在电池过充电中也能够维持正常的充放电反应，并且在充电电池的高温保存之后，具有高能量密度，长循环寿命 可以生产出高安全性能和优异的耐环境性能。

公开(公告)号：US5437945A

公开(公告)日：1995-08-01

申请号：US131957

申请日：1993-10-08

申请人： Atsuo Omaru ,  Shigeru Fujita

发明人： Atsuo Omaru ,  Shigeru Fujita

IPC分类号： H01M4/58 ,  H01M6/16 ,  H01M10/40

CPC分类号： H01M10/0569 ,  H01M4/587 ,  H01M6/164

摘要： A secondary battery which employs a non-aqueous solvent for the electrolyte and which includes a positive electrode formed of a compound oxide of lithium and a negative electrode of a carbonaceous material is disclosed. The non-aqueous electrolyte, comprised of an electrolyte dissolved in the non-aqueous solvent, is employed in such secondary battery. According to the present invention, a mixed solvent composed of propylene carbonate and methyl ethyl carbonate is employed. The volume ratio of propylene carbonate to methyl ethyl carbonate is 6:4 to 3:7 and preferably 4.5:5.5 to 3:7. As the electrolyte, LiPF.sub.6 is dissolved at a concentration of 0.6 to 1.8 mol/lit. The battery is not increased in its internal pressure even when employed under a high temperature environment, while its electrolyte is not solidified when the battery is employed under a low temperature environment, such that a high energy density, a long service life and high operating reliability may be achieved over a broad range of the working temperature.

摘要翻译： 公开了一种二次电池，其使用非水溶剂作为电解质，并且包括由锂的复合氧化物形成的正极和碳质材料的负极的二次电池。 在这种二次电池中使用包含溶解在非水溶剂中的电解质的非水电解质。 根据本发明，使用由碳酸丙烯酯和碳酸甲乙酯组成的混合溶剂。 碳酸丙烯酯与碳酸甲乙酯的体积比为6:4〜3:7，优选为4.5:5.5〜3:7。 作为电解液，以0.6〜1.8mol / L的浓度溶解LiPF 6。 即使在高温环境下使用时，电池的内部压力也不会增加，而当电池在低温环境下使用时，其电解质不固化，使得能量密度高，使用寿命长，运行可靠性高 可以在宽的工作温度范围内实现。

公开(公告)号：US5385794A

公开(公告)日：1995-01-31

申请号：US77623

申请日：1993-06-17

申请人： Keiichi Yokoyama ,  Akio Hiwara ,  Shigeru Fujita ,  Atsuo Omaru

发明人： Keiichi Yokoyama ,  Akio Hiwara ,  Shigeru Fujita ,  Atsuo Omaru

IPC分类号： H01M10/0569 ,  H01M6/14

CPC分类号： H01M10/0569

摘要： Disclosed are a solvent for cell electrolyte comprising a carbamate represented by the following formula [1]; ##STR1## wherein R.sup.1, R.sup.2 and R.sup.3 independently represent a linear or branched alkyl group, cell electrolyte and non-aqueous electrolyte battery comprising the solvent. The solvent can provide batteries showing high withstand voltage and excellent charge/discharge efficiency.

摘要翻译： 公开了包含下式[1]表示的氨基甲酸酯的电解质电解质溶剂。 [1]其中R1，R2和R3独立地表示直链或支链烷基，电池电解质和包含该溶剂的非水电解质电池。 溶剂可以提供显示出高耐受电压和优异的充放电效率的电池。

公开(公告)号：US09450245B2

公开(公告)日：2016-09-20

申请号：US10297650

申请日：2002-04-09

申请人： Atsuo Omaru ,  Hiroaki Tanizaki

发明人： Atsuo Omaru ,  Hiroaki Tanizaki

IPC分类号： H01M4/13 ,  H01M4/133 ,  H01M4/1393 ,  H01M4/40 ,  H01M4/58 ,  H01M4/583 ,  H01M10/0525 ,  H01M4/36 ,  H01M4/62 ,  H01M4/02

CPC分类号： H01M4/364 ,  H01M4/13 ,  H01M4/131 ,  H01M4/133 ,  H01M4/134 ,  H01M4/136 ,  H01M4/1393 ,  H01M4/1395 ,  H01M4/362 ,  H01M4/386 ,  H01M4/40 ,  H01M4/405 ,  H01M4/485 ,  H01M4/58 ,  H01M4/583 ,  H01M4/625 ,  H01M10/0525 ,  H01M10/0568 ,  H01M10/0569 ,  H01M2004/027 ,  Y02E60/122

摘要： The present invention relates to a nonaqueous electrolyte secondary battery comprising an anode (3), a cathode (2) and a nonaqueous electrolyte. The anode forming this battery includes composite particles having a carbon material included in a metallic material. As the metallic material, metal capable of electrochemically reacting with lithium in a nonaqueous electrolyte is included.

摘要翻译： 本发明涉及包含阳极（3），阴极（2）和非水电解质的非水电解质二次电池。 形成该电池的阳极包括具有包含在金属材料中的碳材料的复合颗粒。 作为金属材料，包括能够在非水电解质中与锂电化学反应的金属。

公开(公告)号：US07867649B2

公开(公告)日：2011-01-11

申请号：US11446332

申请日：2006-06-02

申请人： Akira Yamaguchi ,  Atsuo Omaru ,  Masayuki Nagamine

发明人： Akira Yamaguchi ,  Atsuo Omaru ,  Masayuki Nagamine

IPC分类号： H01M2/14 ,  H01M2/16

CPC分类号： H01M2/1653 ,  H01M2/1686 ,  H01M2/348 ,  H01M6/10 ,  H01M10/0525 ,  H01M10/4235

摘要： A non-aqueous electrolyte secondary cell which achieves satisfactory low temperature characteristics and high safety against overcharging in combination. The cell includes a lithium-containing cathode, an anode capable of doping and undoping lithium, a non-aqueous electrolyte and a separator. The separator is made up by a plurality of layers of a porous material or materials presenting micro-sized pores. The layers of the porous material or materials is formed of micro-porous separator materials representing different combinations of the porosity, melting point or material/compositions.

摘要翻译： 一种非水电解质二次电池，其组合实现了令人满意的低温特性和高的安全性。 电池包括含锂阴极，能够掺杂和去掺杂锂的阳极，非水电解质和隔膜。 隔板由多层多孔材料或具有微孔尺寸的材料构成。 多孔材料或材料的层由表示孔隙率，熔点或材料/组成的不同组合的微孔分离器材料形成。

公开(公告)号：US07037623B2

公开(公告)日：2006-05-02

申请号：US10310562

申请日：2002-12-04

申请人： Kotaro Satori ,  Akinori Kita ,  Atsuo Omaru

发明人： Kotaro Satori ,  Akinori Kita ,  Atsuo Omaru

IPC分类号： C01B31/04

CPC分类号： H01M4/623 ,  H01M2/022 ,  H01M4/0404 ,  H01M4/0433 ,  H01M4/366 ,  H01M4/587 ,  H01M6/10 ,  H01M10/0525 ,  H01M10/0569 ,  H01M2004/027 ,  Y10T29/49108 ,  Y10T29/49115 ,  Y10T428/30

摘要： A negative electrode of a nonaqueous secondary battery is formed of a carbonaceous material. The ratio RG=Gs/Gb of the degree of graphitization Gs of the carbonaceous material, determined by a surface-enhanced Raman spectrum, to the degree of graphitization Gb, determined by a Raman spectrum measured using argon laser light, is at least 4.5. Alternatively, the carbonaceous material has a peak in a wavelength range above 1,360 cm−1 in a surface-enhanced Raman spectrum which is measured by the same surface-enhanced Raman spectrum. The deterioration of the nonaqueous secondary battery is suppressed during use in high-temperature environments and high capacity is maintained for long periods.

公开(公告)号：US20050202317A1

公开(公告)日：2005-09-15

申请号：US11127461

申请日：2005-05-12

申请人： Kotaro Satori ,  Akinori Kita ,  Atsuo Omaru

发明人： Kotaro Satori ,  Akinori Kita ,  Atsuo Omaru

IPC分类号： G01N21/65 ,  C01B31/00 ,  C01B31/02 ,  C01B31/04 ,  G01N23/207 ,  H01M2/02 ,  H01M4/36 ,  H01M4/587 ,  H01M4/62 ,  H01M6/10 ,  H01M10/05 ,  H01M10/0525 ,  H01M4/58

CPC分类号： H01M4/623 ,  H01M2/022 ,  H01M4/0404 ,  H01M4/0433 ,  H01M4/366 ,  H01M4/587 ,  H01M6/10 ,  H01M10/0525 ,  H01M10/0569 ,  H01M2004/027 ,  Y10T29/49108 ,  Y10T29/49115 ,  Y10T428/30

摘要： A negative electrode of a nonaqueous secondary battery is formed of a carbonaceous material. The ratio RG=Gs/Gb of the degree of graphitization Gs of the carbonaceous material, determined by a surface-enhanced Raman spectrum, to the degree of graphitization Gb, determined by a Raman spectrum measured using argon laser light, is at least 4.5. Alternatively, the carbonaceous material has a peak in a wavelength range above 1,360 cm−1 in a surface-enhanced Raman spectrum which is measured by the same surface-enhanced Raman spectrum. The deterioration of the nonaqueous secondary battery is suppressed during use in high-temperature environments and high capacity is maintained for long periods.

摘要翻译： 非水二次电池的负极由碳质材料形成。 通过由表面增强拉曼光谱确定的碳质材料的石墨化度Gs与通过使用氩激光测得的拉曼光谱确定的石墨化度Gb的比率RG = Gs / Gb至少为4.5。 或者，碳质材料在通过相同的表面增强拉曼光谱测量的表面增强拉曼光谱中具有在1,360cm -1以上的波长范围内的峰。 在高温环境下使用时，非水系二次电池的劣化被抑制，长时间保持高容量。