Positive-electrode material for a lithium ion secondary battery and manufacturing method of the same
    1.
    发明授权
    Positive-electrode material for a lithium ion secondary battery and manufacturing method of the same 有权
    锂离子二次电池用正极材料及其制造方法

    公开(公告)号:US08597835B2

    公开(公告)日:2013-12-03

    申请号:US13473071

    申请日:2012-05-16

    IPC分类号: H01M4/58 H01B1/04

    摘要: Provided is a positive electrode material for a safe, high capacity, long lifetime lithium ion secondary battery capable of large current charging and discharging. The positive electrode material contains between 5% by mass or more and 30% by mass or less of a carbon black composite formed by joining together fibrous carbon and carbon black wherein ash is 1.0% or less by mass in accordance with JIS K 1469 and the remainder includes olivine-type lithium iron phosphate, and volatile oxygen-containing functional groups which constitutes 1.0% or less by mass of the positive electrode material. The fibrous carbon is preferably a nanotube having a fiber diameter of 5 nm or more and 50 nm or less and a specific surface area between 50 m2/g or more and 400 m2/g or less.

    摘要翻译: 提供一种能够进行大电流充放电的安全,高容量,长寿命的锂离子二次电池用正极材料。 正极材料含有5质量%以上且30质量%以下的通过将纤维状碳和炭黑接合而形成的炭黑复合体,其中灰分按照JIS K1469 1.0质量%以下, 余量包括橄榄石型磷酸铁锂和构成正极材料质量的1.0%以下的挥发性含氧官能团。 纤维状碳优选为纤维直径为5nm以上且50nm以下,比表面积为50m 2 / g以上且400m 2 / g以下的纳米管。

    Electrode material for lithium secondary battery and lithium secondary battery
    2.
    发明授权
    Electrode material for lithium secondary battery and lithium secondary battery 有权
    锂二次电池和锂二次电池用电极材料

    公开(公告)号:US09413003B2

    公开(公告)日:2016-08-09

    申请号:US13574996

    申请日:2011-07-07

    摘要: The present invention provides a negative-electrode material for a lithium secondary battery which has a very low resistance, allows the lithium secondary battery to be charged and discharged (high output) at a high current and have a high capacity, and achieve a cycle life to such an extent that the lithium secondary battery can be mounted on a vehicle. The electrode material is composed of (a) at least one active substance (4) selected from among a metal oxide containing metal therein and an alloy material each of which is coated with a carbon material and has a graphene phase or an amorphous phase (8) on at least a surface thereof, (b) a graphite-based carbon material (5) having the graphene phase or the amorphous phase on at least a surface thereof; and (c) carbon material (6) other than the graphite-based carbon material and having the graphene phase or the amorphous phase on at least a surface thereof. The active substance (4), the graphite-based carbon material (5), and the carbon material (6) other than the graphite-based carbon material fuse the graphene phase or the amorphous phase (8a, 8b) thereof together and bond them to each other to form a composite active substance (7) including composed of the active substance including one active substance selected from among the metal oxide containing the metal and the alloy material.

    摘要翻译: 本发明提供了一种具有非常低电阻的锂二次电池用负极材料,使锂二次电池以高电流充放电(高输出)并具有高容量,并实现循环寿命 达到能够将锂二次电池安装在车辆上的程度。 电极材料由(a)至少一种选自含金属氧化物的活性物质(4)和各自涂覆有碳材料并具有石墨烯相或非晶相的合金材料(8 ),(b)至少在其表面上具有石墨烯相或非晶相的石墨基碳材料(5); 和(c)除了石墨基碳材料之外的碳材料(6),并且在至少其表面上具有石墨烯相或非晶相。 活性物质(4),石墨基碳材料(5)和除了石墨基碳材料之外的碳材料(6)将石墨烯相或非晶相(8a,8b)熔合在一起并将它们结合 彼此形成复合活性物质(7),该复合活性物质(7)由包含选自含有金属的金属氧化物和合金材料的一种活性物质的活性物质构成。

    ELECTRODE MATERIAL FOR LITHIUM SECONDARY BATTERY AND LITHIUM SECONDARY BATTERY
    3.
    发明申请
    ELECTRODE MATERIAL FOR LITHIUM SECONDARY BATTERY AND LITHIUM SECONDARY BATTERY 有权
    用于锂二次电池和锂二次电池的电极材料

    公开(公告)号:US20120328923A1

    公开(公告)日:2012-12-27

    申请号:US13574996

    申请日:2011-07-07

    IPC分类号: H01M4/583 H01M4/00 B82Y30/00

    摘要: The present invention provides a negative-electrode material for a lithium secondary battery which has a very low resistance, allows the lithium secondary battery to be charged and discharged (high output) at a high current and have a high capacity, and achieve a cycle life to such an extent that the lithium secondary battery can be mounted on a vehicle. The electrode material is composed of (a) at least one active substance (4) selected from among a metal oxide containing metal therein and an alloy material each of which is coated with a carbon material and has a graphene phase or an amorphous phase (8) on at least a surface thereof, (b) a graphite-based carbon material (5) having the graphene phase or the amorphous phase on at least a surface thereof; and (c) carbon material (6) other than the graphite-based carbon material and having the graphene phase or the amorphous phase on at least a surface thereof. The active substance (4), the graphite-based carbon material (5), and the carbon material (6) other than the graphite-based carbon material fuse the graphene phase or the amorphous phase (8a, 8b) thereof together and bond them to each other to form a composite active substance (7) including composed of the active substance including one active substance selected from among the metal oxide containing the metal and the alloy material.

    摘要翻译: 本发明提供了一种具有非常低电阻的锂二次电池用负极材料,使锂二次电池以高电流充放电(高输出)并具有高容量,并实现循环寿命 达到能够将锂二次电池安装在车辆上的程度。 电极材料由(a)至少一种选自含金属氧化物的活性物质(4)和各自涂覆有碳材料并具有石墨烯相或非晶相的合金材料(8 ),(b)至少在其表面上具有石墨烯相或非晶相的石墨基碳材料(5); 和(c)除了石墨基碳材料之外的碳材料(6),并且在至少其表面上具有石墨烯相或非晶相。 活性物质(4),石墨基碳材料(5)和除了石墨基碳材料之外的碳材料(6)将石墨烯相或非晶相(8a,8b)熔合在一起并将它们结合 彼此形成复合活性物质(7),该复合活性物质(7)由包含选自含有金属的金属氧化物和合金材料的一种活性物质的活性物质构成。

    ELECTROLYTE HOLDER FOR LITHIUM SECONDARY BATTERY AND LITHIUM SECONDARY BATTERY
    4.
    发明申请
    ELECTROLYTE HOLDER FOR LITHIUM SECONDARY BATTERY AND LITHIUM SECONDARY BATTERY 审中-公开
    锂二次电池和锂二次电池的电解质保持器

    公开(公告)号:US20150010798A1

    公开(公告)日:2015-01-08

    申请号:US14381542

    申请日:2012-03-19

    摘要: The present invention provides an electrolyte holder for a lithium secondary battery capable of holding an electrolytic solution inside electrodes or at an interface between the separator and each of the electrodes, preventing electrolyte shortage inside the electrodes, and restraining dendrite from precipitating and growing and also provide the lithium secondary battery, using the electrolyte holder, which is capable of achieving a cycle life to such an extent that the lithium secondary battery can be used for industrial application. An electrolyte holder (3) for use in the lithium secondary battery consists of a multi-layer structure having at least two hydrophilic fibrous layers (A, B) having different porosities. The electrolyte holder (3) is composed of an electrode group formed by winding a cathode (2) and an anode (1) or laminating the cathode (2) and the anode (1) one upon another with an electrolyte holder (3) serving as a separator interposed between the cathode (2) and the anode (1). The organic electrolytic solution is permeated into the electrode group or the electrode group is immersed in the organic electrolytic solution. A porosity (40% to 80%) of the fibrous layer (A) disposed at an interface between the fibrous layer (A) and the anode (1) is set smaller than a porosity (60% to 90%) of the fibrous layer (B) disposed at an interface between the fibrous layer (B) and the cathode (2). An average porosity of the entire fibrous layer is set to not less than 50%. The fibrous layers are formed by using cellulose fibers as a main material thereof. An active substance for use in the anode (1) is a carbon material.

    摘要翻译: 本发明提供了一种用于锂二次电池的电解质保持器,其能够将电解液保持在电极内部或隔板与每个电极之间的界面处,防止电极内的电解质不足,并且抑制枝晶的沉淀和生长,并且还提供 使用电解质保持器的锂二次电池,其能够实现循环寿命,使得锂二次电池可以用于工业应用。 用于锂二次电池的电解质保持器(3)由具有至少两个具有不同孔隙率的亲水性纤维层(A,B)的多层结构组成。 电解质保持器(3)由通过将阴极(2)和阳极(1)缠绕而形成的电极组或层叠阴极(2)和阳极(1)的电极组合而成,电极保持器(3) 作为插入在阴极(2)和阳极(1)之间的隔膜。 将有机电解液渗透到电极组中,或者将电极组浸渍在有机电解液中。 设置在纤维层(A)和阳极(1)之间的界面处的纤维层(A)的孔隙率(40%至80%)被设定为小于纤维层的孔隙率(60%至90%) (B)设置在纤维层(B)和阴极(2)之间的界面处。 整个纤维层的平均孔隙率设定为不小于50%。 纤维层通过使用纤维素纤维作为其主要材料而形​​成。 用于阳极(1)的活性物质是碳材料。

    ELECTRODE FOR SECONDARY BATTERY AND PRODUCTION PROCESS FOR THE SAME AND SECONDARY BATTERY
    5.
    发明申请
    ELECTRODE FOR SECONDARY BATTERY AND PRODUCTION PROCESS FOR THE SAME AND SECONDARY BATTERY 有权
    二次电池用电极及其二次电池的生产工艺

    公开(公告)号:US20100119949A1

    公开(公告)日:2010-05-13

    申请号:US12597513

    申请日:2008-04-24

    IPC分类号: H01M4/62 H01M4/88

    摘要: To provide an electrode for secondary battery, electrode which can materialize secondary batteries that are adapted into producing high output and additionally whose durability is high.It is characterized in possessing an electrode material that has an active-material powder 11, a conductive material 12 being formed of a carbonaceous material, and being adhered to a surface of said active-material powder 11, and fibrous conductive materials 13 being bonded to said conductive material 12. First of all, it becomes feasible to maintain the electric connection between the active-material powder and the conductive material stably by adhering the conductive material to a surface of the active-material powder. Further, the fibrous conductive materials are bonded to the conductive material that is adhered to a surface of the active-material powder. It is feasible to maintain the electric connection by getting the fibrous conductive materials entangled to each other. That is, it is feasible to keep the electric connection even when strains occur in the electrode material, because the fibrous conductive materials absorb the strains to keep the mutual contacts; even if large strains occur, it is possible to maintain the electric connection, because it is not disconnected compared with that in conventional conductive materials.

    摘要翻译: 为了提供用于二次电池的电极,可以实现适于产生高输出并且另外耐久性高的二次电池的电极。 其特征在于具有电极材料,其具有活性物质粉末11,由碳质材料形成的导电材料12,并且粘附到所述活性物质粉末11的表面,并且将纤维状导电材料13接合到 所述导电材料12.首先,通过将导电材料粘附到活性材料粉末的表面上,可以稳定地保持活性材料粉末和导电材料之间的电连接。 此外,纤维状导电材料与粘附到活性物质粉末的表面的导电材料接合。 通过使纤维状导电材料彼此缠结来维持电连接是可行的。 也就是说,即使当电极材料发生应变时,也可以保持电连接,因为纤维状导电材料吸收应变以保持相互接触; 即使发生大的应变,也可以保持电连接,因为与常规的导电材料相比并不断开。

    Electrolyte holder for lithium secondary battery and lithium secondary battery

    公开(公告)号:US10230089B2

    公开(公告)日:2019-03-12

    申请号:US14381542

    申请日:2012-03-19

    摘要: The present invention provides an electrolyte holder for a lithium secondary battery capable of holding an electrolytic solution inside electrodes or at an interface between the separator and each of the electrodes, preventing electrolyte shortage inside the electrodes, and restraining dendrite from precipitating and growing and also provide the lithium secondary battery, using the electrolyte holder, which is capable of achieving a cycle life to such an extent that the lithium secondary battery can be used for industrial application. An electrolyte holder (3) for use in the lithium secondary battery consists of a multi-layer structure having at least two hydrophilic fibrous layers (A, B) having different porosities. The electrolyte holder (3) is composed of an electrode group formed by winding a cathode (2) and an anode (1) or laminating the cathode (2) and the anode (1) one upon another with an electrolyte holder (3) serving as a separator interposed between the cathode (2) and the anode (1). The organic electrolytic solution is permeated into the electrode group or the electrode group is immersed in the organic electrolytic solution. A porosity (40% to 80%) of the fibrous layer (A) disposed at an interface between the fibrous layer (A) and the anode (1) is set smaller than a porosity (60% to 90%) of the fibrous layer (B) disposed at an interface between the fibrous layer (B) and the cathode (2). An average porosity of the entire fibrous layer is set to not less than 50%. The fibrous layers are formed by using cellulose fibers as a main material thereof. An active substance for use in the anode (1) is a carbon material.

    Electrode for secondary battery and production process for the same and secondary battery
    7.
    发明授权
    Electrode for secondary battery and production process for the same and secondary battery 有权
    二次电池用电极及相同二次电池的生产工艺

    公开(公告)号:US09537150B2

    公开(公告)日:2017-01-03

    申请号:US12597513

    申请日:2008-04-24

    摘要: To provide an electrode for secondary battery, electrode which can materialize secondary batteries that are adapted into producing high output and additionally whose durability is high.It is characterized in possessing an electrode material that has an active-material powder 11, a conductive material 12 being formed of a carbonaceous material, and being adhered to a surface of said active-material powder 11, and fibrous conductive materials 13 being bonded to said conductive material 12. First of all, it becomes feasible to maintain the electric connection between the active-material powder and the conductive material stably by adhering the conductive material to a surface of the active-material powder. Further, the fibrous conductive materials are bonded to the conductive material that is adhered to a surface of the active-material powder. It is feasible to maintain the electric connection by getting the fibrous conductive materials entangled to each other. That is, it is feasible to keep the electric connection even when strains occur in the electrode material, because the fibrous conductive materials absorb the strains to keep the mutual contacts; even if large strains occur, it is possible to maintain the electric connection, because it is not disconnected compared with that in conventional conductive materials.

    摘要翻译: 其特征在于具有电极材料,其具有活性物质粉末11,由碳质材料形成的导电材料12,并且粘附到所述活性物质粉末11的表面,并且将纤维状导电材料13接合到 所述导电材料12.首先,通过将导电材料粘附到活性材料粉末的表面上,可以稳定地保持活性材料粉末和导电材料之间的电连接。 此外,纤维状导电材料与粘附到活性物质粉末的表面的导电材料接合。 通过使纤维状导电材料彼此缠结来维持电连接是可行的。 也就是说,即使当电极材料发生应变时,也可以保持电连接,因为纤维状导电材料吸收应变以保持相互接触; 即使发生大的应变,也可以保持电连接,因为与常规的导电材料相比并不断开。

    LITHIUM SECONDARY BATTERY, METHOD FOR PRODUCING POWER COLLECTION FOIL FOR SAME, AND POWER COLLECTION FOIL FOR SAME
    9.
    发明申请
    LITHIUM SECONDARY BATTERY, METHOD FOR PRODUCING POWER COLLECTION FOIL FOR SAME, AND POWER COLLECTION FOIL FOR SAME 有权
    锂二次电池,用于生产相同功率收集箔的方法和用于相同功率的收集箔

    公开(公告)号:US20120210548A1

    公开(公告)日:2012-08-23

    申请号:US13503629

    申请日:2010-10-21

    IPC分类号: H01M4/70 H01M10/04

    摘要: The present invention provides a method for producing a lithium secondary battery in which peeling of an active substance can be prevented and the generation of metal powder can be prevented when a power collection foil is processed at an electrode production step. The method for producing the lithium secondary battery includes an electrode-producing step of producing a positive electrode and a negative electrode; a step of forming a group of electrodes by layering the positive electrode and the negative electrode on each other through a separator, or winding the positive electrode and the negative electrode through a separator; and a step of immersing the group of the electrodes in an electrolyte. The electrode-producing step has a boring step of forming a plurality of through-holes penetrating a power collection foil and having projected parts projected from at least a rear surface of the power collection foil and a mixed agent-forming step of forming a mixed agent layer on the power collection foil through which the through-holes have been formed. After the boring step finishes, the mixed agent-forming step is successively performed without winding the power collection foil through which the through-holes have been formed.

    摘要翻译: 本发明提供了一种锂二次电池的制造方法,其中可以防止活性物质的剥离,并且在电极制备步骤处理电力收集箔时可以防止金属粉末的产生。 锂二次电池的制造方法包括:制造正极和负极的电极制造工序; 通过隔板将正极和负极层叠形成一组电极的步骤,或者通过隔板卷绕正极和负极; 以及将电极组浸入电解质中的步骤。 电极制造工序具有:形成穿过集电箔的多个贯通孔,并且具有从集电箔的至少后表面突出的突出部的镗孔步骤和形成混合剂的混合剂形成步骤 在通过其形成通孔的集电箔上。 在镗孔步骤完成之后,连续执行混合剂形成步骤,而不缠绕已形成通孔的集电箔。

    Lithium ion rechargeable battery
    10.
    发明授权
    Lithium ion rechargeable battery 有权
    锂离子充电电池

    公开(公告)号:US08057935B2

    公开(公告)日:2011-11-15

    申请号:US12092485

    申请日:2006-10-06

    IPC分类号: H01M4/505 H01M4/525 H01M4/04

    摘要: A high power lithium-ion secondary battery having an increased capacity and capable of maintaining high discharge voltage and repeating charging/discharging high current. A lithium-ion secondary battery having an electrode group formed by laminating or winding a negative electrode layer and a positive electrode layer so as to interpose a separator made of synthetic resin, the negative electrode layer containing a material capable of intercalating/deintercalating lithium-ion, and the positive electrode layer including a lithium-containing metallic oxide; and a non-aqueous electrolyte containing lithium salt, where the electrode group is immersed. The positive electrode material unit contains a fluorinated lithium-containing metallic oxide as a main material, and the separator possesses a hydrophilic group. Further, the positive electrode material preferably contains a main material including LiNixCoyMnzO2, where 0.6≦x

    摘要翻译: 一种高功率锂离子二次电池,其具有增加的容量并且能够保持高放电电压并且重复充电/放电高电流。 一种锂离子二次电池,其具有通过层压或卷绕负极层和正极层而形成的电极组,以便插入由合成树脂制成的隔膜,所述负极层含有能够插入/脱嵌锂离子的材料 ,所述正极层含有含锂金属氧化物; 和含有锂盐的非水电解质,浸渍电极组。 正极材料单元包含含氟的含锂金属氧化物作为主要材料,隔膜具有亲水性基团。 此外,正极材料优选含有包含LiNixCoyMnzO2的主要材料,其中0.6&lt; 1lE; x <1,0