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公开(公告)号：KR1020200131505A
公开(公告)日：2020-11-24
申请号：KR1020190056212
申请日：2019-05-14
Applicant: 한국과학기술원
Abstract: 본발명은셀룰로오스-기반이중탄화된나트륨이온전지용양극물질및 그제조방법에관한것으로서, 셀룰로오스매트릭스에탄소층이코팅된 Na3V2(PO4)3 나노입자가내포되어있는높은비표면적을가지는다공성구조의셀룰로오스-기반이중탄화된나트륨이온전지용양극물질을셀룰로오스를템플레이트로한 이중탄화를통해제조하고, 이렇게제조된양극물질은비용량이이론용량에근접하고, 우수한전도성등의안정적인전기화학적특성을나타내는효과가있다.
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2.发明授权２단계 결정화 공정을 통한 마이크로 크기의 다공성 ＬｉＦｅＰＯ４／Ｃ복합체 제조방법 및 리튬이온전지 양극재로의 이용방법 有权锂离子电池正极材料的两步结晶工艺及其应用方法微孔和多孔LiFePO4 / C复合材料的合成方法
公开(公告)号：KR101227107B1
公开(公告)日：2013-01-28
申请号：KR1020110056884
申请日：2011-06-13
Applicant: 한국과학기술원
IPC: H01M4/58 , H01M4/04 , H01M10/0525
Abstract: 본 발명은 LiFePO
4 씨앗결정(seed crystals)을 이용한 2단계 결정화 공정을 통해 마이크로미터 크기의 지름을 갖는 다공성 LiFePO
4 /C 복합체를 제조하는 방법으로, 열처리 시 비균질 핵생성 자리(heterogeneous nucleation sites)로 작용하는 LiFePO
4 씨앗 결정 표면에서 성장한 2차 LiFePO
4 결정들이 서로 응집되어 입자들 사이 틈에 공극이 존재하는 마이크로미터 크기의 지름을 갖는 다공성 LiFePO
4 결정을 제조하는 기술을 핵심으로 한다. 또한 제조된 LiFePO
4 /C 복합체를 리튬이차전지 양극재로 적용한다.Abstract translation: 目的：提供LiFePO4 / C复合材料的制备方法，以制备LiFePO4 / c复合材料的高振实密度和优异的高倍率，并从各种粒径和形状的LiFePO4晶种制备各种颗粒形状的LiFePO4 / C。 构成：LiFePO4 / C复合材料的制备方法包括：通过水热合成法制备LiFePO4晶种的步骤，将LiFePO4晶种分散在蒸馏水和乙醇的混合溶液中，另外加入FeSO 4·7H 2 O，LiNO 3， NH4H2PO4和蔗糖，并搅拌和混合材料; 以及在氮气和氢气气氛中加热前一步骤的结果的步骤。
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公开(公告)号：KR1020110083265A
公开(公告)日：2011-07-20
申请号：KR1020100003410
申请日：2010-01-14
Applicant: 한국과학기술원
IPC: H01M4/04 , H01M4/50 , H01M10/0525
CPC classification number: C01G45/1242 , C01P2002/32 , C01P2006/40 , H01M4/505 , H01M10/052 , Y02E60/12
Abstract: PURPOSE: A spinel type positive electrode active material for lithium secondary batteries using manganese oxides by a hydrothermal method and a method for fabricating the same are provided to obtain manganese oxides using aluminium ions as metallic ion additives and to control the length of nanothorn formed on the surface of a nanothorn structure. CONSTITUTION: A method for fabricating a spinel type positive electrode active material for lithium secondary batteries using manganese oxides by a hydrothermal method comprises the steps of: preparing manganese oxide powder using a hydrothermal method; and preparing a spinel type positive electrode active material for lithium secondary batteries using the manganese oxide powder as a precursor. NH^4+ ions, SO4^2- ions, and M^z+ as a metal ion additive are included in a manganese-based solution.
Abstract translation: 目的：提供一种通过水热法使用氧化锰的锂二次电池的尖晶石型正极活性物质及其制造方法，以获得使用铝离子作为金属离子添加剂的锰氧化物，并控制在 纳米结构的表面。 组成：一种用于制造用于使用锰氧化物通过水热法的锂二次电池的尖晶石型正极活性材料的方法包括以下步骤：使用水热法制备的氧化锰粉末; 并使用氧化锰粉末作为前体制备用于锂二次电池的尖晶石型正极活性物质。 作为金属离子添加剂的NH 4+离子，SO 4 2-离子和M z z +包括在锰基溶液中。
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公开(公告)号：KR1020110082378A
公开(公告)日：2011-07-19
申请号：KR1020100002336
申请日：2010-01-11
Applicant: 한국과학기술원
IPC: C22C21/00
Abstract: PURPOSE: A ternary aluminum alloy for high speed hydrogen production by hydrolysis and a manufacturing method thereof are provided to ensure safe and convenient storage by manufacturing the ternary aluminum alloy in the type of a plate rather than powder. CONSTITUTION: A method for manufacturing a ternary aluminum alloy for high speed hydrogen production by hydrolysis is as follows. An electromechanical noble element and an element weakening an aluminum film are distributed into aluminum through alloy casting and heat treatment so that the ternary aluminum alloy contains the elements 0.1~20wt%. The ternary aluminum alloy accelerates corrosion in an alkaline solution, thereby producing hydrogen at high speed through hydrolysis.
Abstract translation: 目的：提供一种用于通过水解高速氢生产的三元铝合金及其制造方法，以通过制造板状而不是粉末的三元铝合金来确保安全和方便的储存。 构成：通过水解制造用于高速氢生产的三元铝合金的方法如下。 通过合金铸造和热处理将机电贵金属元素和弱铝元素分散到铝中，使得三元铝合金含有0.1〜20wt％的元素。 三元铝合金在碱性溶液中加速腐蚀，从而通过水解高速生成氢。
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公开(公告)号：KR1020100031911A
公开(公告)日：2010-03-25
申请号：KR1020080090785
申请日：2008-09-16
Applicant: 한국과학기술원
IPC: C22C21/00
Abstract: PURPOSE: An aluminum alloy design for hydrogen high-speed production and a manufacturing method thereof are provided to improve hydrogen production speed by adding metal compounds such as iron, copper, nickel, cobalt or tin. CONSTITUTION: Aluminum alloy includes electrochemically noble element. The aluminum alloy rapidly produces hydrogen through hydrolysis in alkaline water. The noble element is iron, copper, nickel, cobalt, tin, Fe2Al5, FeAl3, Al2Cu, Al3Ni, Al3Ni2, Al9Co2, All3Co4, Al5Co2, FeAl, or AlCo.
Abstract translation: 目的：提供用于氢高速生产的铝合金设计及其制造方法，通过添加铁，铜，镍，钴或锡等金属化合物来提高氢生产速度。 构成：铝合金包括电化学贵金属元素。 铝合金在碱性水中通过水解快速生成氢。 贵金属元素是铁，铜，镍，钴，锡，Fe2Al5，FeAl3，Al2Cu，Al3Ni，Al3Ni2，Al9Co2，All3Co4，Al5Co2，FeAl或AlCo。
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Patent Agency Ranking
公开(公告)号：KR100807808B1
公开(公告)日：2008-02-27
申请号：KR1020060042649
申请日：2006-05-11
Applicant: 한국과학기술원
IPC: B01J27/185 , B01J27/14
Abstract: 본발명은화학적수소화물의수소발생을위한인을포함하는천이금속촉매및 이의제조방법에관한것이다. 보다상세하게는화학적수소화물의수소발생에관여하는천이금속촉매에있어서, 천이금속촉매에인을포함하도록하여수소발생을보다향상시킬수 있는천이금속-인촉매및 이의제조방법에관한것이다. 본발명에서는백금(Pt), 루테늄(Ru)과같은귀금속촉매를대체하기위하여, 붕소수소화물을포함한화학적수소화물의가수분해반응에높은활성도를가지며, 공정이간편하고기판과촉매입자와의결합력이높은천이금속촉매및 이의제조방법제공을목적으로한다.
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公开(公告)号：KR100308918B1
公开(公告)日：2001-09-26
申请号：KR1019990005962
申请日：1999-02-23
Applicant: 한국과학기술원
IPC: C22C38/18
Abstract: 본발명은기존의페라이트스테인리스강에비해고온내취화성이향상된초내식성스테인리스강에관한것으로보다상세하게는기존의페라이트스테인리스강에비해고온에서취성을촉진시키는합금원소인몰리브덴(Mo)의함량을낮추고대신몰리브덴(Mo)과유사한특성을지니면서내취화성을향상시키는원소인텅스텐(W)을첨가한것을특징으로한다. 본발명의페라이트스테인리스강은철(Fe)을주성분으로하여크롬(Cr) 26.0∼30 wt%, 텅스텐(W) 2.0∼6.0 wt%, 니오븀(Nb) 0.10∼0.30 wt%, 몰리브덴(Mo) 2.0 wt% 이하, 규소(Si) 0.5 wt% 이하, 망간(Mn) 0.5 wt% 이하, 인(P) 0.02 wt% 이하, 황(S) 0.01 % 이하, 탄소(C) 0.01 wt% 이하, 질소(N) 0.02 wt% 이하, C+N은 0.025 wt% 이하로조성하고진공유도용해등의방법을이용하여주괴(ingot)를제조하고이 주괴를균질화처리하고열간압연한후 용체화처리하고다시상온에서냉간압연한후 고온에서다시용체화하고급냉하여초내식성페라이트스테인리스강을제조한다. 본발명은핏팅부식성, 응력부식저항성및 내취화성이우수하여발전소, 펄프산업, 석유화학등에활용이기대된다.
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公开(公告)号：KR1020000056551A
公开(公告)日：2000-09-15
申请号：KR1019990005962
申请日：1999-02-23
Applicant: 한국과학기술원
IPC: C22C38/18
Abstract: PURPOSE: A ferrite stainless steel is provided to achieve a high resistance against pitting corrosion and stress corrosion, and superior embrittlement resistance. CONSTITUTION: A ferrite stainless steel is composed of Fe as a main component, 25.0 to 30 weight% Cr, 2.0 to 6.0 weight% W, 0.10 to 0.30 weight% Nb, 0 to 2.0 weight% Mo, 0.5 weight% or less Si, 0.5 weight% or less Mn, 0.02 weight% or less P, 0.01 weight% or less S, o.o1 weight% or less C, 0.02 weight% or less N, and 0.025 weight% C+N. As compared with a conventional stainless steel, Mo content is reduced while W is added in order to improve embrittlement resistance.
Abstract translation: 目的：提供铁素体不锈钢，以实现高耐点腐蚀和应力腐蚀，并具有优异的耐脆性。 构成：铁素体不锈钢以Fe为主成分，25.0〜30重量％的Cr，2.0〜6.0重量％的W，0.10〜0.30重量％的Nb，0〜2.0重量％的Mo，0.5重量％以下的Si， 0.5重量％以下Mn，0.02重量％以下P，0.01重量％以下S，o.o1重量％以下C，0.02重量％以下N和0.025重量％C + N。 与传统的不锈钢相比，为了提高耐脆性，加入W以减少Mo含量。
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公开(公告)号：KR102213109B1
公开(公告)日：2021-02-05
申请号：KR1020190056212
申请日：2019-05-14
Applicant: 한국과학기술원
Abstract: 본발명은셀룰로오스-기반이중탄화된나트륨이온전지용양극물질및 그제조방법에관한것으로서, 셀룰로오스매트릭스에탄소층이코팅된 Na3V2(PO4)3 나노입자가내포되어있는높은비표면적을가지는다공성구조의셀룰로오스-기반이중탄화된나트륨이온전지용양극물질을셀룰로오스를템플레이트로한 이중탄화를통해제조하고, 이렇게제조된양극물질은비용량이이론용량에근접하고, 우수한전도성등의안정적인전기화학적특성을나타내는효과가있다.
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