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    FIBER ELECTRODES FOR LITHIUM SECONDARY BATTERIES, MANUFACTURING METHOD THEREFOR, AND LITHIUM SECONDARY BATTERIES PROVIDED WITH FIBER ELECTRODES
    4.
    发明公开
    FIBER ELECTRODES FOR LITHIUM SECONDARY BATTERIES, MANUFACTURING METHOD THEREFOR, AND LITHIUM SECONDARY BATTERIES PROVIDED WITH FIBER ELECTRODES 有权
    纤维电极用于锂二次电池，方法与纤维电极产生与锂二次电池

    公开(公告)号：EP2395580A1

    公开(公告)日：2011-12-14

    申请号：EP10738333.3

    申请日：2010-02-02

    申请人： National Institute of Advanced Industrial Science and Technology ,  Kawasaki Jukogyo Kabushiki Kaisha

    发明人： SAKAI, Tetsuo ,  YAO, Jinhan ,  MUKAI, Takashi ,  TAKASAKI, Tomoaki ,  TSUTSUMI, Kazuo ,  NISHIMURA, Kazuya

    IPC分类号： H01M4/1391 ,  H01M4/131 ,  H01M4/134 ,  H01M4/1395 ,  H01M4/38 ,  H01M4/62 ,  H01M4/66 ,  H01M4/75

    CPC分类号： H01M4/663 ,  H01M4/131 ,  H01M4/1391 ,  H01M4/623 ,  H01M4/667 ,  Y02E60/122 ,  Y02P70/54

    摘要： Provided is a method for mass manufacturing, at low cost, of a fiber positive electrode for a lithium secondary battery, which has excellent charge/discharge cycle characteristics, and which is capable of charging/discharging with high current density, and a main active material of which is a lithium-doped transition metal oxide. The method includes the steps of: (a) forming a tubular coating of either a transition metal oxide or a transition metal hydroxide on a carbon fiber current collector; and (b) performing, in a lithium ion containing solution in a sealed system under presence of an oxidant or a reductant, heat treatment at 100 to 250 °C on the carbon fiber current collector, on which the tubular coating of either the transition metal oxide or the transition metal hydroxide is formed, to obtain a coating of a lithium-doped transition metal oxide on the carbon fiber current collector. Further provided are: a fiber negative electrode for a lithium secondary battery, which has high current density, high energy density, and excellent charge/discharge cycle characteristics, and which can be fabricated in a relatively easy manner; and a method for fabricating the fiber negative electrode. The fiber negative electrode for a lithium secondary battery includes: (c) a carbon fiber current collector; (d) an outer layer which is a tubular composite layer of a Sn oxide and M x O y formed on the carbon fiber current collector; and (e) an intermediate layer formed of a Sn alloy, which has a lithium occlusion capacity and which is present at an interface between the carbon fiber current collector and the outer layer. The method for fabricating the fiber negative electrode for a lithium secondary battery includes: forming a coating of one of Sn and a Sn alloy, and a coating of at least one kind of metal selected from the group consisting of Fe, Mo, Co, Ni, Cr, Cu, In, Sb, and Bi, on a carbon fiber current collector by an electroplating method; and then performing heat treatment on the carbon fiber current collector under a trace oxygen atmosphere at 350 to 650 °C. Moreover, the lithium secondary battery includes: the fiber positive electrode and the fiber negative electrode fabricated in the above methods; and an electrolyte.

    NEGATIVE ELECTRODE FOR SECONDARY BATTERY AND SECONDARY BATTERY PROVIDED WITH SAME
    9.
    发明公开
    NEGATIVE ELECTRODE FOR SECONDARY BATTERY AND SECONDARY BATTERY PROVIDED WITH SAME 审中-公开
    二次电池负极和二次电池一起提供

    公开(公告)号：EP2624357A1

    公开(公告)日：2013-08-07

    申请号：EP11828266.4

    申请日：2011-03-11

    申请人： Kawasaki Jukogyo Kabushiki Kaisha ,  National Institute of Advanced Industrial Science and Technology

    发明人： TSUTSUMI, Kazuo ,  NISHIMURA, Kazuya ,  TAKASAKI, Tomoaki ,  SAKAI, Tetsuo ,  YAO, Jinhan ,  MUKAI, Takashi

    IPC分类号： H01M10/36 ,  H01M4/02 ,  H01M4/36 ,  H01M4/48 ,  H01M4/50 ,  H01M4/52 ,  H01M10/30

    CPC分类号： H01M4/383 ,  C23C18/1653 ,  C25D3/12 ,  C25D9/06 ,  C25D9/08 ,  H01M4/02 ,  H01M4/48 ,  H01M4/50 ,  H01M4/52 ,  H01M4/663 ,  H01M4/70 ,  H01M10/30 ,  H01M10/36 ,  Y02E60/124

    摘要： A secondary battery according to the present invention includes: a fiber negative electrode including a carbon fiber, the carbon fiber having a surface on which a negative electrode active material coating is formed, the negative electrode active material coating containing a compound represented by a chemical formula 1 which is A a M b X c Z d ; a fiber positive electrode including a carbon fiber, the carbon fiber having a surface on which a positive electrode active material coating is formed, the positive electrode active material coating containing nickel hydroxide; an aqueous electrolyte solution; and a separator. The negative electrode active material coating has a surface uncoated with an electrically conductive material. In the chemical formula 1, A represents at least one kind of metal element selected from the group consisting of Li, Na, K, Rb, Cs, Be, Mg, Ca, Sr, and Ba; M represents at least one kind of transition metal element selected from the group consisting of Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Nb, Mo, Ru, Pd, Ag, Ta, W, Pr, Sm, Eu, and Pb; X represents at least one kind of typical element selected from the group consisting of B, Al, Si, P, S, Ga, and Ge; Z represents at least one kind of typical element selected from the group consisting of O, S, N, F, Cl, Br, and I; and 0≦a≦6, 1≦b≦5, ≦

    摘要翻译： 根据本发明的二次电池包括：包含碳纤维的纤维负极，所述碳纤维具有在其上形成负极活性物质涂层的表面，所述负极活性物质涂层包含由化学式 1是AaMbXcZd; 包含碳纤维的纤维正极，所述碳纤维的表面上形成有正极活性物质涂层，所述正极活性物质涂层含有氢氧化镍; 电解质水溶液; 和一个分离器。 负极活性物质涂层具有未涂覆有导电材料的表面。 在化学式1中，A表示选自由Li，Na，K，Rb，Cs，Be，Mg，Ca，Sr和Ba组成的组中的至少一种金属元素; M代表选自Ti，V，Cr，Mn，Fe，Co，Ni，Cu，Nb，Mo，Ru，Pd，Ag，Ta，W，Pr，Sm， Eu和Pb; X代表选自B，Al，Si，P，S，Ga和Ge中的至少一种典型元素; Z代表选自O，S，N，F，Cl，Br和I中的至少一种典型元素; 并且0≤a≤6,1≤b≤5，≤