리튬이차전지용 올리빈계 양극소재의 재활용 방법, 이에 의하여 제조된 양극소재, 이를 포함하는 리튬이차전지용 양극 및 리튬이차전지
    2.
    发明授权
    리튬이차전지용 올리빈계 양극소재의 재활용 방법, 이에 의하여 제조된 양극소재, 이를 포함하는 리튬이차전지용 양극 및 리튬이차전지 有权
    用于锂二次电池的基于乙烯的阴极材料的回收方法,其阴极材料制成的阴极材料和具有该二次电池的阴极和锂二次电池

    公开(公告)号:KR101439427B1

    公开(公告)日:2014-09-11

    申请号:KR1020130027039

    申请日:2013-03-14

    CPC classification number: C01B25/45 C01B25/375 H01M4/5825 H01M10/54 Y02W30/84

    Abstract: The present invention relates to a method for recycling LiFePO_4, which is an olivine-based cathode material for a lithium secondary battery. The present invention is to synthesize a cathode material including LiFePO_4 using amorphous FePO_4·nH_2O and crystalline FePO_4·2H_2O (meta-strengite) as precursors, wherein the amorphous FePO_4·nH_2O and the crystalline FePO_4·2H_2O are obtained by chemically treating LiFePO_4, which is an olivine-based cathode material for a lithium secondary battery generated from waste batteries. A cathode manufactured from the LiFePO_4 synthesized according to the present invention is economical as the capacity, output characteristics, cycle efficiency and performance of a secondary battery are not degraded and the cathode material of a lithium secondary battery can be recycled.

    Abstract translation: 本发明涉及作为用于锂二次电池的橄榄石类阴极材料的LiFePO_4再循环方法。 本发明是利用无定形FePO 4·nH 2 O和结晶FePO_4·2H_2O(间位强化)作为前体合成包含LiFePO 4的阴极材料,其中非晶FePO_4·nH_2O和结晶FePO_4·2H_2O是通过化学处理LiFePO 4 用于由废电池产生的锂二次电池的基于橄榄石的阴极材料。 由本发明合成的LiFePO_4制造的阴极由于二次电池的容量,输出特性,循环效率和性能不降低而锂二次电池的正极材料能够再循环而是经济的。

    리튬이차전지용 양극활물질 및 그 제조방법
    3.
    发明公开
    리튬이차전지용 양극활물질 및 그 제조방법 有权
    用于锂离子电池的阴极活性材料及其制备方法

    公开(公告)号:KR1020140025793A

    公开(公告)日:2014-03-05

    申请号:KR1020120091913

    申请日:2012-08-22

    Abstract: The present invention relates to a positive electrode active material for a lithium secondary battery and a preparation method thereof. The present invention provides: a positive electrode active material for a lithium secondary battery which can reach high capacity and maintain maximum capacity even in a high voltage, can prevent the decrease of the capacity of the lithium secondary battery after repetitive charging and discharging, and can extend the lifetime of the lithium secondary battery; and a preparation method thereof. [Reference numerals] (AA) Example 1; (BB) Example 2; (CC) Example 3

    Abstract translation: 本发明涉及锂二次电池用正极活性物质及其制备方法。 本发明提供:即使在高电压下也能够达到高容量并保持最大容量的锂二次电池用正极活性物质,能够防止在重复充放电之后锂二次电池的容量降低,能够 延长锂二次电池的寿命; 及其制备方法。 (标号)(AA)实施例1; (BB)实施例2; (CC)实施例3

    마그네슘 공기전지용 공기양극 및 이의 제조방법
    4.
    发明授权
    마그네슘 공기전지용 공기양극 및 이의 제조방법 有权
    镁空气电池空气阴极及其制备

    公开(公告)号:KR101487465B1

    公开(公告)日:2015-01-29

    申请号:KR1020130095371

    申请日:2013-08-12

    Abstract: 본 발명은 마그네슘 공기전지용 공기양극 및 이의 제조방법에 관한 것이다. 본 발명의 여러 구현예에 따르면, 4층 구조로 형성되어 있는 마그네슘 공기전지용 공기양극은 전해질 용액의 외부로의 유출을 방지할 뿐만 아니라, 전해질 용액이 모세관 현상으로 젖게 하여 삼상계면을 많이 형성함으로써 반응속도를 높이고, 전해질 용액이 흐르지 않도록 하고, 반응 생성물인 수산화마그네슘의 공기전극에의 부착을 방지함으로써 반응속도를 증가시켰으며, 내구성이 향상된 효과를 달성할 수 있다.

    Abstract translation: 本发明涉及一种镁空气电池用空气阴极及其制造方法。 根据本发明的各种实施例,具有四层结构的镁空气电池的空气阴极防止电解液泄漏到外部,并且通过使电解质溶液形成许多三相界面来加速反应速度 由于毛细血管现象而变湿。 此外,用于镁空气电池的空气阴极防止电解液流动,通过防止氢氧化镁(反应产物)附着到空气电极来加速反应速度,并且能够提高耐久性效果。

    리튬이차전지용 나노복합체 양극 활물질을 제조하는 방법
    5.
    发明公开
    리튬이차전지용 나노복합체 양극 활물질을 제조하는 방법 无效
    锂二次电池纳米复合材料的制备方法

    公开(公告)号:KR1020130125124A

    公开(公告)日:2013-11-18

    申请号:KR1020120048634

    申请日:2012-05-08

    Abstract: The present invention relates to a method for manufacturing a nanocomposite active material for a lithium secondary battery comprising the steps of: producing a first cathode active material represented by Li2MnO3 by mixing a lithium compound and a manganese compound; producing a co-precipitated hydroxide represented by (Nia-Mnb-Coc)(OH)2 by mixing nickel sulfate, manganese sulfate, a solution mixed with cobalt sulfate, sodium hydroxide solution, and aqueous ammonia; producing a second cathode active material represented by LiMO2(M=Nia-Mnb-Coc) by mixing the co-precipitated hydroxide and a lithium compound; and mixing the first cathode active material and the second cathode active material. Electrochemical properties such as stability in the range of high voltage, electrode capacity and cycle lifetime can be improved by producing nanocomposite for a lithium secondary battery represented by the chemical formula below. [chemical formula] xLi2MnO3-(1-x)LiMO2.

    Abstract translation: 本发明涉及一种锂二次电池用纳米复合材料活性物质的制造方法,其特征在于,包括以下步骤:通过混合锂化合物和锰化合物,制造由Li2MnO3表示的第一正极活性物质; 通过混合硫酸镍,硫酸锰,与硫酸钴混合的溶液,氢氧化钠溶液和氨水,制备由(Nia-Mnb-Coc)(OH)2表示的共沉淀氢氧化物; 通过混合共沉淀氢氧化物和锂化合物制备由LiMO2(M = Nia-Mnb-Coc)表示的第二阴极活性材料; 并混合第一阴极活性物质和第二阴极活性物质。 通过制备由下述化学式表示的锂二次电池的纳米复合材料,可以提高诸如高压范围,电极容量和循环寿命中的稳定性的电化学性能。 [化学式] xLi2MnO3-(1-x)LiMO2。

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