利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

11 条记录 (耗时 0.012 秒)

    FIBER ELECTRODES FOR LITHIUM SECONDARY BATTERIES, MANUFACTURING METHOD THEREFOR, AND LITHIUM SECONDARY BATTERIES PROVIDED WITH FIBER ELECTRODES
    2.
    发明公开
    FIBER ELECTRODES FOR LITHIUM SECONDARY BATTERIES, MANUFACTURING METHOD THEREFOR, AND LITHIUM SECONDARY BATTERIES PROVIDED WITH FIBER ELECTRODES 有权
    FASERELEKTRODENFÜRLITHIUMSEKUNDÄRBATTERIEN，VERFAHREN ZU IHRER HERSTELLUNG UNDLITHIUMSEKUNDÄRBATTERIENMIT DEN FASERELEKTRODEN

    公开(公告)号：EP2395580A4

    公开(公告)日：2013-11-20

    申请号：EP10738333

    申请日：2010-02-02

    申请人： NAT INST OF ADVANCED IND SCIEN ,  KAWASAKI HEAVY IND LTD

    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.

    摘要翻译： 本发明提供一种以低成本制造锂二次电池用正极的方法，其具有优异的充放电循环特性，能够以高电流密度进行充放电，主活性物质 其中掺杂有锂的过渡金属氧化物。 该方法包括以下步骤：（a）在碳纤维集电器上形成过渡金属氧化物或过渡金属氢氧化物的管状涂层; 和（b）在氧化剂或还原剂的存在下，在密封体系中的含锂离子溶液中，在碳纤维集电器上在100至250℃下进行热处理，其中过渡金属 氧化物或过渡金属氢氧化物，以在碳纤维集电体上获得掺杂锂的过渡金属氧化物的涂层。 进一步提供：一种用于锂二次电池的光纤负极，其具有高电流密度，高能量密度和优异的充电/放电循环特性，并且可以以相对容易的方式制造; 以及制造该纤维负极的方法。 锂二次电池用纤维负极包括：（c）碳纤维集电体; （d）在碳纤维集电体上形成的Sn氧化物和M x O y的管状复合层的外层， 以及（e）由具有锂吸留能力的Sn合金形成的中间层，其存在于碳纤维集电体和外层之间的界面处。 制造锂二次电池用纤维负极的方法包括：形成Sn和Sn合金之一的涂层，以及选自Fe，Mo，Co，Ni中的至少一种金属的涂层 ，Cr，Cu，In，Sb和Bi，通过电镀法在碳纤维集电体上; 然后在350〜650℃的微量氧气氛下，对碳纤维集电体进行热处理。 此外，锂二次电池包括：以上述方法制造的纤维正极和纤维负极; 和电解质。

    NEGATIVE ELECTRODE FOR SECONDARY BATTERY AND SECONDARY BATTERY PROVIDED WITH SAME
    5.
    发明公开
    NEGATIVE ELECTRODE FOR SECONDARY BATTERY AND SECONDARY BATTERY PROVIDED WITH SAME 审中-公开
    NEGATIVELEKTRODEFÜREINESEKUNDÄRBATTERIEUND DAMIT AUSGESTATTETESEKUNDÄRBATTERIE

    公开(公告)号：EP2624357A4

    公开(公告)日：2013-12-25

    申请号：EP11828266

    申请日：2011-03-11

    申请人： KAWASAKI HEAVY IND LTD ,  NAT INST OF ADVANCED IND SCIEN

    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 ,  H01M4/38 ,  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，具有形成有负极活性物质涂层的表面的碳纤维，所述负极活性物质涂料含有由化学式表示的化合物 1是A a M b X c Z d; 包含碳纤维的纤维正极，具有形成正极活性物质涂层的表面的碳纤维，含有氢氧化镍的正极活性物质涂层; 电解质水溶液; 和分隔符。 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Li，Na，K，Rb，Cs，Be，Mg，Ca，Sr和Ba中的至少一种金属元素; M表示选自Ti，V，Cr，Mn，Fe，Co，Ni，Cu，Nb，Mo，Ru，Pd，Ag，Ta，W，Pr，Sm中的至少一种过渡金属元素， Eu和Pb; X表示选自B，Al，Si，P，S，Ga和Ge中的至少一种典型元素; Z表示选自O，S，N，F，Cl，Br和I中的至少一种典型元素; 0‰| a‰|6，1‰| b‰|5，‰|