KR20020003742A - Anode materials of lithium secondary batteries - Google Patents
Anode materials of lithium secondary batteries Download PDFInfo
- Publication number
- KR20020003742A KR20020003742A KR1020000037629A KR20000037629A KR20020003742A KR 20020003742 A KR20020003742 A KR 20020003742A KR 1020000037629 A KR1020000037629 A KR 1020000037629A KR 20000037629 A KR20000037629 A KR 20000037629A KR 20020003742 A KR20020003742 A KR 20020003742A
- Authority
- KR
- South Korea
- Prior art keywords
- powder
- lithium
- lithium secondary
- secondary battery
- negative electrode
- Prior art date
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Abstract
Description
본 발명은 리튬이차전지의 음극물질에 관한 것으로서, 더 상세하게는 세라믹 또는 금속간화합물 등의 강화제를 리튬과 합금이 가능한 금속분말 속에 분산시킨 복합재료를 합성한 음극물질에 의해 리튬이차전지용 리튬합금 음극에서 가장 중요시되는 기계적 안정성을 확보하고 리튬이차전지의 싸이클 수명을 향상시킬 수 있는 리튬이차전지의 음극물질에 관한 것이다.The present invention relates to a negative electrode material of a lithium secondary battery, and more particularly, to a lithium alloy for a lithium secondary battery by a negative electrode material synthesized with a composite material obtained by dispersing a reinforcing agent such as a ceramic or an intermetallic compound in a metal powder capable of alloying with lithium. The present invention relates to a negative electrode material of a lithium secondary battery, which may secure mechanical stability, which is most important in a negative electrode, and may improve cycle life of a lithium secondary battery.
휴대전화, 노트북 컴퓨터 등 휴대용 무선 정보통신기기의 급속한 발달에 따라 고에너지 밀도를 갖는 휴대용 전원으로서 리튬이차전지는 큰 주목을 끌고 있다.With the rapid development of portable wireless information communication devices such as mobile phones and notebook computers, lithium secondary batteries have attracted great attention as portable power sources having high energy density.
리튬이차전지의 음극재료로서 검토되는 물질 중 리튬금속은 다른 어떠한 재료의 경우보다 에너지밀도가 3860 mAh/g로 높기 때문에 리튬을 음극으로 갖는 전지의 성능이 가장 우수함을 예상할 수 있다.Among the materials considered as a negative electrode material of a lithium secondary battery, lithium metal has a higher energy density of 3860 mAh / g than that of any other material, and thus, a battery having lithium as a negative electrode can be expected to have the best performance.
하지만 충전시 수지상 성장에 의한 안전성 문제와 낮은 충방전 효율 등의 문제점들이 극복되지 못하고 있는 실정이다.However, problems such as safety problems due to dendritic growth during charging and low charge and discharge efficiency have not been overcome.
이러한 고용량을 나타내면서 이를 대치할 수 있는 물질로서 리튬합금의 연구가 현재 전 세계적으로 진행되고 있다.The research of lithium alloys as a material that can replace these with high capacity is currently underway around the world.
리튬합금 물질은 카본음극 물질의 제한된 용량보다 더 높은 무게당, 부피당 충방전 용량을 구현할 수 있으며, 그 외에도 높은 충방전 전류에도 사용이 가능한 장점과 높은 충방전 효율을 나타낸다.Lithium alloy material can realize the charge and discharge capacity per weight, volume per volume higher than the limited capacity of the carbon anode material, and also has the advantage that can be used for high charge and discharge current and high charge and discharge efficiency.
하지만 충방전시 상변화로 인한 부피변화가 발생, 이로 인해 발생되는 응력이 활물질의 파괴를 일으켜 싸이클에 따른 용량 감소의 큰 문제점을 보이며 이러한 전극의 기계적 불안정성 문제를 극복하고자 현재 전 세계적으로 금속간화합물, 전극 활물질의 초미립화, 나노복합물질의 개발 등을 통한 싸이클 성능 향상에 대한 연구가 활발히 이루어지고 있다.However, the volume change occurs due to the phase change during charge and discharge, and the stress caused by this causes the destruction of the active material, which shows a big problem of the capacity reduction due to the cycle. In recent years, research has been actively conducted to improve cycle performance through ultrafine atomization of electrode active materials and development of nanocomposites.
리튬이차전지계의 음극용으로 이용되는 리튬합금의 가장 큰 문제점은 충방전시 리튬합금의 부피변화로 인한 파괴현상과 이로 인한 싸이클에 따른 용량감소 현상이라 할 수 있다.The biggest problem of the lithium alloy used for the negative electrode of the lithium secondary battery system may be a breakdown phenomenon due to the volume change of the lithium alloy during charging and discharging and a capacity reduction phenomenon due to the cycle thereof.
이러한 문제점을 극복하고자 하는 연구 중, 리튬과 반응하는 물질(active phase)에 리튬과 반응하지 않는 비반응 물질(inactive phase)을 첨가, 복합물질을 합성하여 합금반응에 있어 나타나는 부피변화에 의한 전극파괴 현상을 억제할 수 있는 반응물질/비반응물질로 구성된 초미립복합 음극물질 개발에 대한 연구가 한 주류를 차지하고 있으나 아직까지 그 향상된 특성의 원인 및 특성향상 기구의 해석 등이 모호한 상태이다.During the research to overcome this problem, electrode destruction by volume change in alloy reaction by synthesizing composite material by adding inactive phase which does not react with lithium to active phase with lithium Research into the development of ultrafine composite anodes composed of reactants / non-reactants that can suppress phenomena occupies a mainstream, but the cause of the improved characteristics and the interpretation of the mechanism for improvement are still vague.
본 발명은 상술한 문제점을 해결하기 위하여 안출된 것으로서, 리튬이차전지계의 음극으로 이용되는 리튬합금재료의 기계적 강도 특성을 향상시켜 싸이클 수명이 향상된 고용량 전지를 구현할 수 있는 리튬이차전지의 음극물질을 제공하는데 그 목적이 있는 것이다.The present invention has been made to solve the above-described problems, and to improve the mechanical strength characteristics of the lithium alloy material used as a negative electrode of the lithium secondary battery system to improve the cycle life of the lithium secondary battery negative electrode material The purpose is to provide.
상술한 목적을 달성하기 위하여, 본 발명은 리튬과 합금이 가능한 금속분말(Al, Mg, Sn, Si, Sb, Ge, Pb, Ag, Au, Zn, In, Cd, Bi, Pt, Pd, Ca, B, Te)중 어느 하나의 분말과 세라믹 분말(Al2O3, SiO2, Li2O, CuO, Fe2O3, Nb2O5, MgO, SiC, Al4C3, TiC, Fe3C, Co3C Ni3C, Si3N4, BN, AlN, GaN, AlB2)중 어느 하나의 분말을 복합한 것을 특징으로 하는 리튬이차전지의 음극물질을 제공하고자 한다.In order to achieve the above object, the present invention is a metal powder capable of alloying with lithium (Al, Mg, Sn, Si, Sb, Ge, Pb, Ag, Au, Zn, In, Cd, Bi, Pt, Pd, Ca Ceramic powder (Al 2 O 3 , SiO 2 , Li 2 O, CuO, Fe 2 O 3 , Nb 2 O 5 , MgO, SiC, Al 4 C 3 , TiC, Fe) 3 C, Co 3 C Ni 3 C, Si 3 N 4 , BN, AlN, GaN, AlB 2 ) To provide a negative electrode material of a lithium secondary battery characterized in that the composite of any one of the powders.
도 1은 본 발명의 일실시예 따른 기계적 합성방법을 통한 Al(80 vol%)과 SiC(20 vol%)간 음극물질의 싸이클 특성도,1 is a cycle characteristic diagram of a negative electrode material between Al (80 vol%) and SiC (20 vol%) through a mechanical synthesis method according to an embodiment of the present invention,
도 2는 본 발명의 다른 실시예에 따른 기계적 합성방법을 통한 Al(80 vol%)과 Al2O3(20 vol%)간 음극물질의 싸이클 특성도,2 is a cycle characteristic diagram of the anode material between Al (80 vol%) and Al 2 O 3 (20 vol%) through a mechanical synthesis method according to another embodiment of the present invention,
도 3은 본 발명의 또 다른 실시예에 따른 기계적 합성방법과 열처리를 통한 Al과 Al6Mn간 음극물질의 싸이클 특성도.3 is a cycle characteristic diagram of the anode material between Al and Al 6 Mn through a mechanical synthesis method and heat treatment according to another embodiment of the present invention.
이하 본 발명을 첨부된 도면 도 1 내지 도 3을 참고로 하여 설명하면 다음과 같다.Hereinafter, the present invention will be described with reference to the accompanying drawings, FIGS. 1 to 3.
도 1은 본 발명의 일실시예 따른 기계적 합성방법을 통한 Al(80 vol%)과 SiC(20 vol%)간 음극물질의 싸이클 특성도이고, 도 2는 본 발명의 다른 실시예에 따른 기계적 합성방법을 통한 Al(80 vol%)과 Al2O3(20 vol%)간 음극물질의 싸이클 특성도이며, 도 3은 본 발명의 또 다른 실시예에 따른 기계적 합성방법과 열처리를 통한 Al과 Al6Mn간 음극물질의 싸이클 특성도이다.1 is a cycle characteristic diagram of a cathode material between Al (80 vol%) and SiC (20 vol%) through a mechanical synthesis method according to an embodiment of the present invention, Figure 2 is a mechanical synthesis according to another embodiment of the present invention Cyclic characteristics of the anode material between Al (80 vol%) and Al 2 O 3 (20 vol%) through the method, Figure 3 is Al and Al through a mechanical synthesis method and heat treatment according to another embodiment of the present invention This is a cycle characteristic diagram of a negative electrode material between 6 Mn.
먼저 본 발명의 기본적인 구성을 살펴보면, 리튬과 합금이 가능한 금속분말(Al, Mg, Sn, Si, Sb, Ge, Pb, Ag, Au, Zn, In, Cd, Bi, Pt, Pd, Ca, B, Te)중 어느 하나의 분말과 세라믹 분말(Al2O3, SiO2, Li2O, CuO, Fe2O3, Nb2O5, MgO, SiC, Al4C3, TiC, Fe3C, Co3C Ni3C, Si3N4, BN, AlN, GaN, AlB2)중 어느 하나의 분말을 복합한 것을 특징으로 한다.First, the basic configuration of the present invention, a metal powder capable of alloying with lithium (Al, Mg, Sn, Si, Sb, Ge, Pb, Ag, Au, Zn, In, Cd, Bi, Pt, Pd, Ca, B Ceramic powder (Al 2 O 3 , SiO 2 , Li 2 O, CuO, Fe 2 O 3 , Nb 2 O 5 , MgO, SiC, Al 4 C 3 , TiC, Fe 3 C , Co 3 C Ni 3 C, Si 3 N 4 , BN, AlN, GaN, AlB 2 ) It is characterized in that any one of the powders are combined.
이하 실시예를 통하여 본 발명을 상세히 설명하면 다음과 같다.Hereinafter, the present invention will be described in detail with reference to the following examples.
단, 하기의 실시예는 본 발명의 예시일 뿐, 본 발명을 실시예 범위로만 제한하는 것은 아니다.However, the following examples are only examples of the present invention, and the present invention is not limited only to the examples.
<실시예 1><Example 1>
리튬과 합금이 가능한 금속분말(Al, Mg, Sn, Si, Sb, Ge, Pb, Ag, Au, Zn, In, Cd, Bi, Pt, Pd, Ca, B, Te)중 어느 하나의 분말과 세라믹 분말(Al2O3, SiO2, Li2O, CuO, Fe2O3, Nb2O5, MgO, SiC, Al4C3, TiC, Fe3C, Co3C Ni3C, Si3N4, BN, AlN, GaN, AlB2)중 어느 하나의 분말을 복합하였다.Powder of any one of metal powder (Al, Mg, Sn, Si, Sb, Ge, Pb, Ag, Au, Zn, In, Cd, Bi, Pt, Pd, Ca, B, Te) Ceramic powder (Al 2 O 3 , SiO 2 , Li 2 O, CuO, Fe 2 O 3 , Nb 2 O 5 , MgO, SiC, Al 4 C 3 , TiC, Fe 3 C, Co 3 C Ni 3 C, Si 3 N 4 , BN, AlN, GaN, AlB 2 ) powder of any one of the composite.
상기 분말의 복합은 리튬이차전지의 음극물질리튬과 합금이 가능한 금속분말(Al, Mg, Sn, Si, Sb, Ge, Pb, Ag, Au, Zn, In, Cd, Bi, Pt, Pd, Ca, B, Te)중 어느 하나의 분말 50-95 vol%에 세라믹 분말(Al2O3, SiO2, Li2O, CuO, Fe2O3, Nb2O5, MgO, SiC, Al4C3, TiC, Fe3C, Co3C Ni3C, Si3N4, BN, AlN, GaN, AlB2)중 어느 하나의 분말 5∼50 vol%를 섞은 후, 지름 5.5cm, 높이 9cm의 SKD11 재질의 원통형 바이얼에 3/8 인치 크기의 볼과 함께 잠입하여 볼밀기기(일명:vibrating mill)에 장착시킨 후 분당 600-1000회의 회전속도로 기계적 합성을 수행하여 이루어 졌다.The composite of the powder is a metal powder (Al, Mg, Sn, Si, Sb, Ge, Pb, Ag, Au, Zn, In, Cd, Bi, Pt, Pd, Ca, which can be alloyed with lithium secondary battery negative electrode material) Ceramic powder (Al 2 O 3 , SiO 2 , Li 2 O, CuO, Fe 2 O 3 , Nb 2 O 5 , MgO, SiC, Al 4 C 3 , TiC, Fe 3 C, Co 3 C Ni 3 C, Si 3 N 4 , BN, AlN, GaN, AlB 2 ) After mixing 5-50 vol% of any powder, 5.5cm in diameter, 9cm in height It was made by inserting a 3/8 inch ball into a cylindrical vial made of SKD11, mounted on a ball mill (aka vibrating mill), and then performing mechanical synthesis at a rotation speed of 600-1000 revolutions per minute.
볼과 분말과의 무게비는 16∼24:1로 유지하였으며 산소의 영향을 최대한 억제하기 위해서 아르곤 가스 분위기의 글러브 박스(glove box) 내에서 준비하였다.The weight ratio between the ball and the powder was maintained at 16 to 24: 1 and prepared in a glove box under argon gas atmosphere to suppress the effect of oxygen as much as possible.
일예로서 리튬과 합금이 가능한 Al과 리튬과 반응하지 않고 강화제 역할을 하는 세라믹 물질 중 SiC간의 복합물질을 80 vol% : 20 vol%로 섞은 후, 지름 5.5cm, 높이 9cm의 SKD11 재질의 원통형 바이얼에 3/8 인치 크기의 볼과 함께 잠입하여 볼밀기기(일명:vibrating mill)에 장착시킨 후 분당 800회의 회전속도로 기계적 합성을 수행하였다.For example, after mixing 80 vol%: 20 vol% of a composite material between Al capable of alloying with lithium and SiC among ceramic materials that do not react with lithium as a reinforcing agent, a cylindrical vial of SKD11 material having a diameter of 5.5 cm and a height of 9 cm It was infiltrated with a 3/8 inch ball, mounted on a ball mill (aka vibrating mill), and mechanical synthesis was performed at 800 revolutions per minute.
이때 볼과 분말과의 무게비는 20:1로 유지하였으며 산소의 영향을 최대한 억제하기 위해서 아르곤 가스 분위기의 글러브(glove box)내에서 준비하였다.At this time, the weight ratio of the ball and the powder was maintained at 20: 1 and prepared in a glove box of argon gas atmosphere to suppress the influence of oxygen as much as possible.
도 1은 상기의 기계적 합성방법을 통하여 음극물질을 제조한 후, 리튬이차전지의 전극물질로서 그 특성을 확인한 실험 결과로서 Al 복합물질 전극이 단순히 Al을 사용하는 경우보다 향상된 싸이클 수명을 보여주고 있음을 알 수 있다.FIG. 1 shows the improved cycle life of the Al composite electrode as compared to the case of simply using Al as an experimental result of fabricating a negative electrode material through the mechanical synthesis method and confirming its characteristics as an electrode material of a lithium secondary battery. It can be seen.
다른 예로서 리튬과 합금이 가능한 Al과 리튬과 반응하지 않고 강화제 역할을 하는 세라믹 물질 중 Al2O3간의 복합물질을 80 vol% : 20 vol%로 섞은 후, 지름 5.5cm, 높이 9cm의 SKD11 재질의 원통형 바이얼에 3/8 인치 크기의 볼과 함께 잠입하여 볼밀기기(일명:vibrating mill)에 장착시킨 후 분당 800회의 회전속도로 기계적 합성을 수행하였다.As another example, SKD11 material with a diameter of 5.5cm and a height of 9cm was mixed after mixing a composite material between Al capable of alloying with lithium and Al 2 O 3 in a ceramic material that does not react with lithium and Al 2 O 3 as a reinforcing material. It was immersed with a 3/8 inch size ball in a cylindrical vial of and mounted on a ball mill (aka vibrating mill), and then mechanical synthesis was performed at a speed of 800 revolutions per minute.
이때 볼과 분말과의 무게비는 20:1로 유지하였으며 산소의 영향을 최대한 억제하기 위해서 아르곤 가스 분위기의 글러브(glove box)내에서 준비하였다.At this time, the weight ratio of the ball and the powder was maintained at 20: 1 and prepared in a glove box of argon gas atmosphere to suppress the influence of oxygen as much as possible.
도 2는 상기의 기계적 합성방법을 통하여 음극물질을 제조한 후, 리튬이차전지의 전극물질로서 그 특성을 확인한 실험 결과로서 Al 복합물질 전극이 단순히 Al을 사용하는 경우보다 향상된 싸이클 수명을 보여주고 있음을 역시 알 수 있다.FIG. 2 shows the improved cycle life of the Al composite electrode as compared to the case of simply using Al as an experimental result of fabricating a negative electrode material through the mechanical synthesis method and confirming its characteristics as an electrode material of a lithium secondary battery. It can also be seen.
<실시예 2><Example 2>
본 발명의 다른 예는 리튬과 합금이 가능한 금속분말(Al, Mg, Sn, Si, Sb, Ge, Pb, Ag, Au, Zn, In, Cd, Bi, Pt, Pd, Ca, B, Te)중 어느 하나의 분말과 금속간화합물(Al3Ti, Al3Fe, Al3Nb, Al6Mn, Al3Cr, Al3Co, Al3Ni, Al2Cu, Al4Cu9, Al3Zr, TiSi2, CrSi2, MoSi2)중 어느 하나의 화합물을 복합하는 것을 특징으로 한다.Another example of the present invention is a metal powder capable of alloying with lithium (Al, Mg, Sn, Si, Sb, Ge, Pb, Ag, Au, Zn, In, Cd, Bi, Pt, Pd, Ca, B, Te) Any one of powders and intermetallic compounds (Al 3 Ti, Al 3 Fe, Al 3 Nb, Al 6 Mn, Al 3 Cr, Al 3 Co, Al 3 Ni, Al 2 Cu, Al 4 Cu 9 , Al 3 Zr , TiSi 2 , CrSi 2 , MoSi 2 ) compound.
상기 분말과 화합물간의 복합은 리튬과 합금이 가능한 금속분말(Al, Mg, Sn, Si, Sb, Ge, Pb, Ag, Au, Zn, In, Cd, Bi, Pt, Pd, Ca, B, Te)중 어느 하나의 분말 50-95 vol%에 금속간화합물(Al3Ti, Al3Fe, Al3Nb, Al6Mn, Al3Cr, Al3Co, Al3Ni, Al2Cu, Al4Cu9, Al3Zr, TiSi2, CrSi2, MoSi2)중 어느 하나의 화합물 5∼50 vol%를 섞은 분말과 볼을 중량비 1:16∼24로 유지하여 바이얼에 잠입한 상태에서, 볼밀기기에 장착시킨 후 분당 600∼1000회의 회전속도로 기계적 합성을 수행한 다음, 아르곤 가스 분위기의 300∼600℃ 온도에서 10분∼24시간의 열처리를 행하여 이루어진다.The composite between the powder and the compound is a metal powder capable of alloying with lithium (Al, Mg, Sn, Si, Sb, Ge, Pb, Ag, Au, Zn, In, Cd, Bi, Pt, Pd, Ca, B, Te Intermetallic compounds (Al 3 Ti, Al 3 Fe, Al 3 Nb, Al 6 Mn, Al 3 Cr, Al 3 Co, Al 3 Ni, Al 2 Cu, Al 4 ) in 50-95 vol% of either powder Ball mill in a state in which the powder and the ball mixed with 5 to 50 vol% of any one compound of Cu 9 , Al 3 Zr, TiSi 2 , CrSi 2 , and MoSi 2 are kept in a weight ratio of 1:16 to 24 and infiltrated into a vial. After mounting to the apparatus, mechanical synthesis is carried out at a rotational speed of 600 to 1000 times per minute, followed by heat treatment for 10 minutes to 24 hours at a temperature of 300 to 600 ° C. in an argon gas atmosphere.
도 3은 Al과 Al6Mn간의 복합재료를 리튬전지의 음극으로 그 특성을 확인한 그림으로서 Al과 Mn 분말간의 기계적 합성을 통하여 Mn안에 Al을 충분히 고용시킨 후 500℃에서 12시간동안 아르곤 가스 분위기 하에서 열처리를 수행하여 Al과 Al6Mn간의 복합재료를 합성하였다.3 is a diagram showing the characteristics of the composite material between Al and Al 6 Mn as a negative electrode of a lithium battery. After Al is sufficiently dissolved in Mn through a mechanical synthesis between Al and Mn powder, it is under an argon gas atmosphere at 500 ° C. for 12 hours. Heat treatment was performed to synthesize a composite material between Al and Al 6 Mn.
이러한 복합재료를 리튬이차전지의 음극으로 사용할 경우 역시 단순히 Al을 전극으로 사용하였을 경우보다 향상된 싸이클 수명을 보여주고 있다.When the composite material is used as a negative electrode of a lithium secondary battery, it also shows an improved cycle life than when Al is used as an electrode.
이상에서처럼 본 발명은 종래 복합재료 전극의 입자 내부구조 및 각 상들의 역할 등의 기본개념과는 차이를 보이는 새로운 개념의 리튬합금 복합재료를 개발한 것이다.As described above, the present invention is to develop a lithium alloy composite material of a new concept showing a difference from the basic concepts such as the particle internal structure of the composite electrode and the role of each phase.
즉, 본 발명은 리튬합금 물질과 강화제 역할을 하는 세라믹 또는 금속간화합물 간의 복합재료를 합성하여 리튬이차전지의 음극물질에 이용함으로써 리튬합금 물질의 기계적 강도 특성이 향상되어 충방전 반응시 전극의 파괴현상을 억제하며 그로 인하여 싸이클 수명특성을 향상시킬 수 있는 것이다.That is, the present invention synthesizes a composite material between a lithium alloy material and a ceramic or intermetallic compound serving as a reinforcing agent and uses it as a negative electrode material of a lithium secondary battery, thereby improving mechanical strength characteristics of the lithium alloy material, thereby destroying electrodes during charge and discharge reactions. This can suppress the phenomenon and thereby improve the cycle life characteristics.
이상에서 살펴본 바와 같이, 본 발명은 세라믹 또는 금속간화합물 등의 강화제를 리튬과 합금이 가능한 금속 분말 속에 분산시킨 복합재료를 합성하여 리튬이차전지의 음극물질로 이용하는 것에 의해 리튬이차전지용 리튬합금 음극에서 가장 중요시되는 기계적 안정성을 확보하여 리튬 전지의 싸이클 수명을 향상시킬 수 있는 유용한 발명인 것이다.As described above, the present invention synthesizes a composite material in which a reinforcing agent, such as a ceramic or an intermetallic compound, is dispersed in a metal powder capable of alloying with lithium, and then used as a negative electrode material of a lithium secondary battery in a lithium alloy negative electrode for a lithium secondary battery. It is a useful invention that can improve the cycle life of a lithium battery by securing the most important mechanical stability.
Claims (4)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020000037629A KR20020003742A (en) | 2000-07-03 | 2000-07-03 | Anode materials of lithium secondary batteries |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020000037629A KR20020003742A (en) | 2000-07-03 | 2000-07-03 | Anode materials of lithium secondary batteries |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| KR20020003742A true KR20020003742A (en) | 2002-01-15 |
Family
ID=19675826
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1020000037629A KR20020003742A (en) | 2000-07-03 | 2000-07-03 | Anode materials of lithium secondary batteries |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR20020003742A (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100522678B1 (en) * | 1999-04-29 | 2005-10-19 | 삼성에스디아이 주식회사 | Composition for cathode active material of lithium secondary battery and manufacturing method of cathode active material using the same |
| KR101166900B1 (en) * | 2004-04-15 | 2012-07-18 | 에프엠씨 코포레이션 | Composite materials of nano-dispersed silicon and tin and methods of making the same |
| US9054365B2 (en) | 2010-10-27 | 2015-06-09 | Samsung Sdi Co., Ltd. | Negative active material for rechargeable lithium battery and rechargeable lithium battery |
| US9525175B2 (en) | 2010-05-25 | 2016-12-20 | Samsung Sdi Co., Ltd. | Negative electrode for secondary lithium battery, and secondary lithium battery |
| CN106532021A (en) * | 2017-01-11 | 2017-03-22 | 安徽工业大学 | Fe<3>C@onion-shaped carbon/amorphous carbon nanocomposite and preparation method and application thereof |
| CN106602033A (en) * | 2017-01-11 | 2017-04-26 | 安徽工业大学 | ZrC@ onion-like carbon/amorphous carbon nano-composite and preparation method and application thereof |
| CN106654280A (en) * | 2017-01-11 | 2017-05-10 | 安徽工业大学 | W2C@onion-shaped carbon/amorphous carbon nanometer composite and preparing method and application thereof |
| CN106654281A (en) * | 2017-01-11 | 2017-05-10 | 安徽工业大学 | TaC@onion-like carbon/amorphous carbon nanocomposite as well as preparation method and application thereof |
| CN106711422A (en) * | 2017-01-11 | 2017-05-24 | 安徽工业大学 | Co3C@onion-shaped carbon/amorphous carbon nano-composite as well as preparation method and application thereof |
| US10374228B2 (en) | 2006-10-13 | 2019-08-06 | Fmc Lithium Usa Corp. | Stabilized lithium metal powder for li-ion application composition |
| CN111029531A (en) * | 2020-01-02 | 2020-04-17 | 北京航空航天大学 | Monoatomic dispersed MXene material and application thereof to lithium battery negative electrode |
-
2000
- 2000-07-03 KR KR1020000037629A patent/KR20020003742A/en not_active Application Discontinuation
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100522678B1 (en) * | 1999-04-29 | 2005-10-19 | 삼성에스디아이 주식회사 | Composition for cathode active material of lithium secondary battery and manufacturing method of cathode active material using the same |
| US10003070B2 (en) | 2004-04-15 | 2018-06-19 | Fmc Corporation | Composite materials of nano-dispersed silicon and tin and methods of making the same |
| KR101166900B1 (en) * | 2004-04-15 | 2012-07-18 | 에프엠씨 코포레이션 | Composite materials of nano-dispersed silicon and tin and methods of making the same |
| US8231810B2 (en) | 2004-04-15 | 2012-07-31 | Fmc Corporation | Composite materials of nano-dispersed silicon and tin and methods of making the same |
| US8753779B2 (en) | 2004-04-15 | 2014-06-17 | Fmc Corporation | Composite materials of nano-dispersed silicon and tin and methods of making the same |
| US10374228B2 (en) | 2006-10-13 | 2019-08-06 | Fmc Lithium Usa Corp. | Stabilized lithium metal powder for li-ion application composition |
| US9525175B2 (en) | 2010-05-25 | 2016-12-20 | Samsung Sdi Co., Ltd. | Negative electrode for secondary lithium battery, and secondary lithium battery |
| US9054365B2 (en) | 2010-10-27 | 2015-06-09 | Samsung Sdi Co., Ltd. | Negative active material for rechargeable lithium battery and rechargeable lithium battery |
| CN106532021A (en) * | 2017-01-11 | 2017-03-22 | 安徽工业大学 | Fe<3>C@onion-shaped carbon/amorphous carbon nanocomposite and preparation method and application thereof |
| CN106654281A (en) * | 2017-01-11 | 2017-05-10 | 安徽工业大学 | TaC@onion-like carbon/amorphous carbon nanocomposite as well as preparation method and application thereof |
| CN106711422A (en) * | 2017-01-11 | 2017-05-24 | 安徽工业大学 | Co3C@onion-shaped carbon/amorphous carbon nano-composite as well as preparation method and application thereof |
| CN106654280A (en) * | 2017-01-11 | 2017-05-10 | 安徽工业大学 | W2C@onion-shaped carbon/amorphous carbon nanometer composite and preparing method and application thereof |
| CN106602033A (en) * | 2017-01-11 | 2017-04-26 | 安徽工业大学 | ZrC@ onion-like carbon/amorphous carbon nano-composite and preparation method and application thereof |
| CN111029531A (en) * | 2020-01-02 | 2020-04-17 | 北京航空航天大学 | Monoatomic dispersed MXene material and application thereof to lithium battery negative electrode |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| RU2313858C2 (en) | Negative active material for lithium storage battery and its production process | |
| KR20170131239A (en) | A material of negative electrode for lithium secondary battary | |
| JP6374678B2 (en) | Negative electrode materials for electricity storage devices | |
| KR20020003742A (en) | Anode materials of lithium secondary batteries | |
| KR101482478B1 (en) | Si based negative electrode material | |
| CN104995771B (en) | The Si systems eutectic alloy and its manufacturing method of the negative electrode active material of electric energy storage device | |
| KR20160132826A (en) | Negative-electrode material for electricity-storage device | |
| KR20170057235A (en) | Si-BASED ALLOY NEGATIVE ELECTRODE MATERIAL FOR ELECTRICITY STORAGE DEVICES AND ELECTRODE USING SAME | |
| KR100922282B1 (en) | Composite, method for preparing the same, rechargeable battery comprising the composite and method for using the rechargeable battery | |
| JP2009152201A (en) | Complex anode active material, its manufacturing method, and anode and lithium battery using the same | |
| KR101600358B1 (en) | SECONDARY BATTERY USING Te OR Te COMPOSITE | |
| KR101725381B1 (en) | Methods for manufacturing composite including Si, Si-transition metal compound, graphite and amorphous carbon, anode material for secondary battery including composite manufactured thereby, and Li-ion secondary battery comprising the same | |
| JPH11345610A (en) | Negative electrode for battery and manufacture thereof | |
| KR20020050676A (en) | Amorphous anode materials of lithium secondary batteries | |
| JP4372451B2 (en) | Method for producing negative electrode active material for non-aqueous electrolyte secondary battery | |
| JPH10302776A (en) | Totally solid lithium secondary battery | |
| JP2000302551A (en) | Carbon material for negative electrode of lithium secondary battery and accelerator for graphitization | |
| JP6630632B2 (en) | Anode materials for power storage devices | |
| JP2004285406A (en) | Hydrogen storage alloy and electrode for nickel-hydrogen battery using the same | |
| JPH11345611A (en) | Negative electrode for battery and its manufacture | |
| JP3141140B2 (en) | Method for producing hydrogen storage alloy for battery | |
| JPH04187733A (en) | Hydrogen storage alloy electrode | |
| KR20170030188A (en) | ANODE ACTIVE MATERIAL OF Co-Sn COMPOUNG, METAL CARBIDES AND CARBON COMPOSITE, AND THE MANUFACTURING METHOD THEREOF, AND LITHIUM SECONDARY BATTERY USING THE SAME | |
| JPH05179372A (en) | Production of hydrogen occluding alloy powder | |
| JPH10226836A (en) | Hydrogen storage alloy and its production |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A201 | Request for examination | ||
| E902 | Notification of reason for refusal | ||
| E601 | Decision to refuse application |