公开(公告)号：KR1020160010071A

公开(公告)日：2016-01-27

申请号：KR1020140090896

申请日：2014-07-18

Applicant: 한국과학기술연구원

Inventor： 정경윤 ,  김지웅 ,  조해인 ,  김지영 ,  오시형 ,  최원창 ,  이화영 ,  조병원

IPC: H01M4/58 ,  H01M4/136 ,  H01M10/0525

CPC classification number: H01M4/5825 ,  H01M4/0471 ,  H01M4/136 ,  H01M4/505 ,  H01M10/052 ,  H01M2004/021 ,  H01M4/58 ,  H01M10/0525 ,  H01M2004/028

Abstract: 본발명은리튬망간보레이트계양극활물질, 이를포함하는리튬이온이차전지및 이의제조방법에관한것이다. 본발명의리튬망간보레이트계화합물을양극활물질로사용되는경우, 종래양극활물질에비해높은출력용량및 사이클용량등 우수한효과를달성할수 있다.

Abstract translation: 本发明涉及一种基于硼酸锂锰的正极活性物质及其制造方法。 在使用本发明的基于锂锰硼酸盐的化合物作为正极活性物质的情况下，与使用常规的正极活性物质的锂离子二次电池相比，可获得高的输出容量和循环容量等优异的效果 材料。

公开(公告)号：KR101539962B1

公开(公告)日：2015-07-29

申请号：KR1020130076574

申请日：2013-07-01

Applicant: 한국과학기술연구원

Inventor： 오시형 ,  신언성

IPC: H01M4/525 ,  H01M10/052

Abstract: 본발명은전기전도성복합금속산화물이코팅된양극활물질, 이의제조방법및 이를포함하는리튬이차전지에관한것으로, 상기코팅된양극활물질은양극활물질및 상기양극활물질을감싸는복합금속산화물을포함하는코팅층을포함하고, 상기코팅층에포함되는복합금속산화물은전기전도성이있는파이로클로르구조(pyrochlore structure)를가지는것으로서, 전지의수명특성을향상시킬수 있음과동시에 (화학양론적인) 파이로클로르구조를가짐으로써높은전기전도성또한나타내어, 고율방전특성을향상된코팅된양극활물질을제공한다. 나아가, 상기코팅된양극활물질을이용하여리튬이차전지를제작하면고전압하에서도부식현상이적고, 중대형전지로의활용이가능한리튬이차전지를제공할수 있다.

Abstract translation: 本发明涉及涂覆有导电性复合金属氧化物的正极活性物质及其制造方法和包括该正极活性物质的锂二次电池。 涂布的正极活性物质包括具有复合金属氧化物以包围正极活性物质的涂层和包含在涂层中的复合金属氧化物具有导电性的烧绿石结构的正极活性物质。 因此，涂布的正极活性物质通过具有（化学计量）烧绿石结构，提高了电池的寿命特性，并且具有高导电性，从而提供具有改善的高倍率放电性能的正极活性材料。 此外，如果使用包覆的正极活性物质制造锂电池，则可以提供在高电压下几乎没有腐蚀并用作大尺寸电池的锂电池。

公开(公告)号：KR1020150063265A

公开(公告)日：2015-06-09

申请号：KR1020130147938

申请日：2013-11-29

Applicant: 한국과학기술연구원

Inventor： 오시형 ,  조원일 ,  조용재 ,  송민섭

IPC: H01M4/505 ,  H01M4/42 ,  H01M4/583

CPC classification number: H01M4/505 ,  H01M4/42 ,  H01M4/583 ,  H01M4/86

Abstract: ZnO-MnO-C 복합체및 산화아연및 산화망간을포함하는복합체의제조방법이제공되고, 본발명의일 구현예에따른 ZnO-MnO-C 복합체는 ZnO-MnO 복합체를포함하고, 상기 ZnO-MnO 복합체의입자표면에탄소층이위치할수 있다.

Abstract translation: 提供ZnO-MnO-C复合材料和制备含有氧化锌和氧化锰的复合材料的方法。 根据本发明的一个实施方案，ZnO-MnO-C复合材料包括Zn-Mno复合材料，并且碳层可以放置在Zno-Mno复合颗粒的表面上。

公开(公告)号：KR101473767B1

公开(公告)日：2014-12-18

申请号：KR1020130048575

申请日：2013-04-30

Applicant: 한국과학기술연구원

Inventor： 오시형 ,  조원일 ,  류승호 ,  신언성

IPC: C01D15/00 ,  C01G45/00 ,  B01J6/00

Abstract: 본발명의불소가도핑된외곽층을가지는리튬망간산화물소재의제조방법은불산가스와리튬망간산화물계복합금속산화물을접촉시켜소재의표면에불소가도핑된리튬망간산화물을제조하는열처리단계를포함하여, 상기복합금속산화물표면의산소원자의일부가불소로치환된불소가도핑된외곽층을가지는리튬망간산화물을제공한다. 상기불소가도핑된외곽층을가지는리튬망간산화물은이차전지의양극소재로이용될수 있으며, 간단한표면처리공정에의하여제조할수 있는장점이있다. 또한, 이렇게불소가도핑된스피넬구조의리튬망간산화물을소재의외곽층으로형성시켜스피넬구조의리튬망간산화물을구조적및 화학적으로안정성을향상시키면충·방전부식등으로인한양극소재의열화가경감되어전지의상온및 고온에서의수명특성을향상시킬수 있고, 망간평균산화수의감소로인한양극의용량이증가하는등의특성을지닌고성능의이차전지를제공할수 있다.

公开(公告)号：KR1020140111516A

公开(公告)日：2014-09-19

申请号：KR1020130025761

申请日：2013-03-11

Applicant: 한국과학기술연구원

Inventor： 오시형 ,  조원일 ,  류승호 ,  신언성 ,  김민섭

IPC: H01M4/1393 ,  H01M4/1397 ,  H01M10/05

CPC classification number: H01M4/364 ,  C01B32/18 ,  H01M4/0416 ,  H01M4/136 ,  H01M4/366 ,  H01M4/38 ,  H01M4/5815 ,  H01M4/625 ,  H01M10/052

Abstract: A method for manufacturing a hollow carbon sphere according to an embodiment of the present invention comprises the process of manufacturing a hollow carbon sphere with micropores using a material including template particles and metal-phthalocyanine. A carbon shell-sulfur composite can be manufactured by embedding sulfur inside the hollow carbon sphere and the manufactured hollow carbon sphere can be used as the cathode material of a lithium-sulfur secondary battery as the manufactured hollow carbon sphere has a carbon wall surface with micropores. The carbon-sulfur composite material manufactured according to the method can increase the very low electroconductivity of sulfur, can prevent lithium polysulfide with a long chain structure from being dissolved in electrolyte by confining sulfur and lithium polysulfide, which is derived from sulfur, inside a carbon shell having micropores distributed thereon, can minimize shuttle reaction, can reduce an overcharging amount between charge and discharge, and can improve the performance of a secondary battery. Moreover, the present invention provides a method for mass-producing the hollow carbon spheres and the carbon shell-sulfur composite.

Abstract translation: 根据本发明的实施方案的中空碳球的制造方法包括使用包含模板粒子和金属 - 酞菁的材料制造具有微孔的中空碳球的方法。 碳壳硫复合物可以通过在中空碳球内嵌入硫而制造，并且制造的中空碳球可以用作锂 - 硫二次电池的阴极材料，因为制造的中空碳球具有具有微孔的碳壁表面 。 根据该方法制造的碳 - 硫复合材料可以增加硫的非常低的导电性，可以防止长链结构的多硫化物通过将硫和衍生自硫的多硫化硫限制在碳内而溶解在电解质中 壳体上分布有微孔可以最小化穿梭反应，可以减少充放电之间的过充电量，并且可以提高二次电池的性能。 此外，本发明提供了大量生产中空碳球和碳 - 硫 - 硫复合物的方法。

公开(公告)号：KR1020140022735A

公开(公告)日：2014-02-25

申请号：KR1020130096423

申请日：2013-08-14

Applicant: 한국과학기술연구원

Inventor： 조원일 ,  오시형 ,  이선영 ,  류승호 ,  이중기 ,  오인환 ,  신언성 ,  송민섭

IPC: H01M4/88 ,  H01M4/1393 ,  H01M12/06

CPC classification number: H01M4/88 ,  H01M4/8668 ,  H01M4/8828 ,  H01M4/8882 ,  H01M4/9016 ,  H01M4/96 ,  H01M8/0232 ,  H01M12/08 ,  Y02E60/128

Abstract: The present invention relates to a method for manufacturing an air electrode for a lithium-air battery having a high capacity and excellent cycle characteristics, and a lithium-air battery using the same. More particularly, the present invention can improve homogeneity on the surface of an electrode due to active materials uniformly dispersed not only on the surface of a current collector but also on a frame inside, by coating electrode active material slurry including carbon or carbon, a catalyst and a binder on the current collector of an air electrode via a spray coating method. Therefore, the present invention improves the characteristics of a lithium-air battery and provides an air electrode having the characteristics of a secondary battery and a lithium-air battery including the same, as a cathode. [Reference numerals] (AA) Comparative example 2; (BB) Comparative example 1; (CC) Example 1

Abstract translation: 本发明涉及一种具有高容量和优异的循环特性的锂空气电池用空气电极的制造方法和使用其的锂空气电池。 更具体地，本发明可以通过涂覆包括碳或碳的电极活性材料浆料，由于活性材料不仅均匀分散在集电体的表面上而且在框架内部均匀分散，可以改善电极表面的均匀性，催化剂 以及通过喷涂法在空气电极的集电体上的粘合剂。 因此，本发明改进了锂空气电池的特性，并且提供了具有二次电池和包含该空气电池的锂空气电池的特性的空气电极作为阴极。 （附图标记）（AA）比较例2; （BB）比较例1; （CC）实施例1

公开(公告)号：KR1020060117109A

公开(公告)日：2006-11-16

申请号：KR1020050039883

申请日：2005-05-12

Applicant: 한국과학기술연구원

Inventor： 김형선 ,  조병원 ,  이중기 ,  조원일 ,  김운석 ,  오시형

IPC: H01M4/04 ,  H01M4/38 ,  B82Y30/00

CPC classification number: C01B32/05 ,  C01B33/02 ,  C01P2004/80 ,  C01P2006/40 ,  H01M4/366 ,  H01M4/386 ,  H01M4/625 ,  Y02E60/12

Abstract: Provided is a silicon anode active material for a lithium secondary battery, which shows high electroconductivity and low electric resistance, undergoes a reduced change in volume upon charge/discharge, and imparts high output, high capacity and improved lifespan to a lithium secondary battery. The silicon anode active material for a lithium secondary battery is obtained by the method comprising the steps of: mechanically mixing and pulverizing silicon particles and cellulose-like vegetable fibers to allow the surface of the silicon particles to be coated with the vegetable fibers; and heat treating the silicon particles coated with the vegetable fibers under a reductive atmosphere or inert atmosphere to perform carbonization of the surface of the silicon particles. The cellulose-like vegetable fibers are mixed with the silicon particles in a ratio of 0.1-10 per weight of the silicon particles.

Abstract translation: 本发明提供一种锂二次电池的正极活性物质，其显示高导电性和低电阻，在充放电时体积变化减小，并且对锂二次电池具有高输出，高容量和寿命提高。 锂二次电池用硅负极活性物质是通过以下方法获得的：将硅颗粒和纤维素状植物纤维机械混合和粉碎，以使硅颗粒的表面被植物纤维包覆; 并在还原性气氛或惰性气氛下热处理涂有植物纤维的硅颗粒，以进行硅颗粒表面的碳化。 将纤维素状植物纤维与硅粒子以硅原子重量计为0.1-10的比例混合。