KR970077800A - Lithium secondary battery and manufacturing method thereof - Google Patents

Lithium secondary battery and manufacturing method thereof Download PDF

Info

Publication number
KR970077800A
KR970077800A KR1019960017878A KR19960017878A KR970077800A KR 970077800 A KR970077800 A KR 970077800A KR 1019960017878 A KR1019960017878 A KR 1019960017878A KR 19960017878 A KR19960017878 A KR 19960017878A KR 970077800 A KR970077800 A KR 970077800A
Authority
KR
South Korea
Prior art keywords
lithium
secondary battery
active material
manganese
lithium secondary
Prior art date
Application number
KR1019960017878A
Other languages
Korean (ko)
Other versions
KR100400204B1 (en
Inventor
손영수
Original Assignee
김광호
삼성전자 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 김광호, 삼성전자 주식회사 filed Critical 김광호
Priority to KR1019960017878A priority Critical patent/KR100400204B1/en
Publication of KR970077800A publication Critical patent/KR970077800A/en
Application granted granted Critical
Publication of KR100400204B1 publication Critical patent/KR100400204B1/en

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/36—Selection of substances as active materials, active masses, active liquids
    • H01M4/362—Composites
    • H01M4/366—Composites as layered products
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G45/00—Compounds of manganese
    • C01G45/12—Manganates manganites or permanganates
    • C01G45/1221—Manganates or manganites with a manganese oxidation state of Mn(III), Mn(IV) or mixtures thereof
    • C01G45/1242—Manganates or manganites with a manganese oxidation state of Mn(III), Mn(IV) or mixtures thereof of the type [Mn2O4]-, e.g. LiMn2O4, Li[MxMn2-x]O4
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G51/00—Compounds of cobalt
    • C01G51/40—Cobaltates
    • C01G51/42—Cobaltates containing alkali metals, e.g. LiCoO2
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/05—Accumulators with non-aqueous electrolyte
    • H01M10/052—Li-accumulators
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/36—Selection of substances as active materials, active masses, active liquids
    • H01M4/48—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides
    • H01M4/485—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of mixed oxides or hydroxides for inserting or intercalating light metals, e.g. LiTi2O4 or LiTi2OxFy
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/36—Selection of substances as active materials, active masses, active liquids
    • H01M4/48—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides
    • H01M4/50—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese
    • H01M4/505—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/36—Selection of substances as active materials, active masses, active liquids
    • H01M4/48—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides
    • H01M4/52—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron
    • H01M4/525—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/36—Selection of substances as active materials, active masses, active liquids
    • H01M4/58—Selection of substances as active materials, active masses, active liquids of inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy; of polyanionic structures, e.g. phosphates, silicates or borates
    • H01M4/583—Carbonaceous material, e.g. graphite-intercalation compounds or CFx
    • H01M4/587—Carbonaceous material, e.g. graphite-intercalation compounds or CFx for inserting or intercalating light metals
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/40—Electric properties
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/36—Selection of substances as active materials, active masses, active liquids
    • H01M4/38—Selection of substances as active materials, active masses, active liquids of elements or alloys
    • H01M4/381—Alkaline or alkaline earth metals elements
    • H01M4/382—Lithium
    • 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
    • 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50—Manufacturing or production processes characterised by the final manufactured product

Landscapes

  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Composite Materials (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Battery Electrode And Active Subsutance (AREA)
  • Secondary Cells (AREA)

Abstract

본 발명은 다음식 (Ⅰ)로 표시되는 리튬망간산화물 활물질을 이용한 리튬 양극, 음극 및 전해질로 이루어진 리튬 2차 전지에 있어서, 상기 리튬망간산화물 활물질의 표면이 다음식 (Ⅱ)로 표시되는 리튬-코발트-망간-산소의 4원계 산화물로 코팅된 리튬 2차 전지 및 그 제조방법에 관한 것이다.The present invention provides a lithium secondary battery comprising a lithium anode, a cathode and an electrolyte using a lithium manganese oxide active material represented by the following formula (I), wherein the surface of the lithium manganese oxide active material is a lithium- Cobalt-manganese-oxygen quaternary oxide, and a method of manufacturing the same.

LixMn2O4(Ⅰ)Li x Mn 2 O 4 (I)

Li-xCo-yMgyO2(Ⅱ)Li x Co y Mg y O 2 (II)

상기 식에서, 0.1x1이고, 0.01y0.02이다.In the above equation, 0.1x1 and 0.01y0.02.

본 발명에 따르면 가격이 저렴하고 무공해인 리튬망간산화물을 이용하는 양극 활물질을 표면 처리함으로써 고에너지 밀도를 가지며, 전해액 내에서의 리튬 확산 속도가 촉진되고, 고율의 충방전 특성을 나타내는 리튬 이차 전지를 얻을 수 있다.According to the present invention, it is possible to obtain a lithium secondary battery having a high energy density, accelerating a lithium diffusion rate in an electrolyte, and exhibiting a high rate of charge / discharge characteristics by surface-treating a cathode active material using a lithium manganese oxide, .

Description

리튬 이차 전지 및 그 제조방법Lithium secondary battery and manufacturing method thereof

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is a trivial issue, I did not include the contents of the text.

Claims (8)

다음식 (Ⅰ)로 표시되는 리튬망간산화물 활물질을 이용한 리튬 양극, 음극 및 전해질로 이루어진 리튬 2차 전지에 있어서, 상기 리튬망간산화물 활물질의 표면이 다음식 (Ⅱ)로 표시되는 리튬-코발트-망간-산소의 4원계 산화물로 코팅된 것을 특징으로 하는 리튬 2차 전지.A lithium secondary battery comprising a lithium anode, a cathode and an electrolyte using a lithium manganese oxide active material represented by the following formula (I), wherein the surface of said lithium manganese oxide active material is lithium-cobalt-manganese - < / RTI > oxygen. LixMn2O4(Ⅰ)Li x Mn 2 O 4 (I) Li-xCo-yMgyO2(Ⅱ)Li x Co y Mg y O 2 (II) 상기 식에서, 0.1x1이고, 0.01y0.02이다.In the above equation, 0.1x1 and 0.01y0.02. 제1항에 있어서, 상기 음극이 금속 리튬 또는 탄소 소재 음극인 것을 특징으로 하는 리튬 이차 전지.The lithium secondary battery according to claim 1, wherein the negative electrode is a metallic lithium or carbon negative electrode. 제1항에 있어서, 상기 전해질이 염화리튬 산화물, 에틸렌 카르보네이트 및 프로필렌 카르보네이트로 이루어진 유기 전해질인 것을 특징으로 하는 리튬 이차 전지.The lithium secondary battery according to claim 1, wherein the electrolyte is an organic electrolyte composed of lithium chloride oxide, ethylene carbonate, and propylene carbonate. 제1항에 있어서, 상기 식(Ⅱ)의 4원 산화물의 코팅량이 양극 활물질 전체의 중량에 대하여 0.1 내지 5중량%인 것을 특징으로 하는 리튬 이차 전지.The lithium secondary battery according to claim 1, wherein the coating amount of the quaternary oxide of the formula (II) is 0.1 to 5% by weight based on the weight of the whole cathode active material. a) 수산화리튬과 이상화망간의 혼합물을 반응시키는 단계; b) 상기의 반응 혼합물을 상온으로 냉각시켜 하기 식(Ⅰ)의 금속 산화물 분말을 수득하는 단계; c) 상기 수득된 금속 산화물 분말을 초산 코발트와 초산마그네슘의 현탁액에 넣고, 여기에 수산화리튬 수용액을 첨가하여 상기 금속 산화물 분말의 표면을 하기식(Ⅱ)의 4원 산화물로 코팅하는 단계; 및 d) 상기 코팅된 화합물을 수세 및 건조시켜서 양극 활물질을 제조하는 단계를 포함하는 것을 특징으로 하는 리튬 2차 전지의 제조방법.a) reacting a mixture of lithium hydroxide and idealized manganese; b) cooling the reaction mixture to room temperature to obtain a metal oxide powder of formula (I); c) coating the obtained metal oxide powder with a quaternary oxide of the following formula (II) by adding a lithium hydroxide aqueous solution to the suspension of cobalt acetate and magnesium acetate, and then surface-treating the metal oxide powder; And d) washing and drying the coated compound to prepare a cathode active material. LixMn2O4(Ⅰ)Li x Mn 2 O 4 (I) Li＋yCo＋yMgyO2(Ⅱ) Li + y Co + y Mg y O 2 (Ⅱ) 상기 식에서, 0.1x1이고, 0.01y0.02이다.In the above equation, 0.1x1 and 0.01y0.02. 제5항에 있어서, 상기 단계 a)에서 상기 수산화리튬과 이산화망간 혼합물의 혼합비가 1 : 2 내지 1.05 : 2인 것을 특징으로 하는 리튬 이차 전지의 제조방법.6. The method of claim 5, wherein the mixing ratio of the lithium hydroxide and the manganese dioxide mixture is 1: 2 to 1.05: 2 in the step a). 제5항에 있어서, 상기 단계 a)에서 상기 수산화리튬과 이산화망간의 혼합물을 700∼750℃에서 40∼60시간동안 반응시키는 것을 특징으로 하는 리튬 이차 전지의 제조방법.[6] The method of claim 5, wherein the mixture of lithium hydroxide and manganese dioxide is reacted at 700-750 [deg.] C for 40-60 hours in step a). 제5항에 있어서, 상기 단계 d)에서 코팅된 화합물을 200∼250℃의 온도에서 약 1 내지 2시간 동안 건조시키는 것을 특징으로 하는 리튬 이차 전지의 제조방법.6. The method according to claim 5, wherein the coated compound is dried at a temperature of 200 to 250 DEG C for about 1 to 2 hours. ※ 참고사항 : 최초출원 내용에 의하여 공개되는 것임.※ Note: It is disclosed by the contents of the first application.
KR1019960017878A 1996-05-25 1996-05-25 Lithium secondary battery and preparation method thereof KR100400204B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019960017878A KR100400204B1 (en) 1996-05-25 1996-05-25 Lithium secondary battery and preparation method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019960017878A KR100400204B1 (en) 1996-05-25 1996-05-25 Lithium secondary battery and preparation method thereof

Publications (2)

Publication Number Publication Date
KR970077800A true KR970077800A (en) 1997-12-12
KR100400204B1 KR100400204B1 (en) 2003-12-24

Family

ID=37422320

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019960017878A KR100400204B1 (en) 1996-05-25 1996-05-25 Lithium secondary battery and preparation method thereof

Country Status (1)

Country Link
KR (1) KR100400204B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100398744B1 (en) * 2000-02-16 2003-09-19 주식회사 엘지화학 Method for preparing lithium manganese spinel oxide with improved electrochemical performance

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20030083476A (en) * 2002-04-23 2003-10-30 주식회사 엘지화학 Lithium metal oxides with enhanced cycle life and safety and a process for preparation thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100398744B1 (en) * 2000-02-16 2003-09-19 주식회사 엘지화학 Method for preparing lithium manganese spinel oxide with improved electrochemical performance

Also Published As

Publication number Publication date
KR100400204B1 (en) 2003-12-24

Similar Documents

Publication Publication Date Title
US4279972A (en) Non-aqueous electrolyte cell
US4264689A (en) Additive for electrochemical cell stability
KR100239872B1 (en) Synthesis method for alkaline metal intercalation materials
Murphy et al. Low voltage behavior of lithium/metal dichalcogenide topochemical cells
JP4197225B2 (en) Cathode active material for non-aqueous electrolyte secondary battery and method for producing the same
KR20020072833A (en) Positive active material for lithium secondary battery and method for preparing the same
CA2099504A1 (en) Rechargeable battery including a li___ mn_0_ cathode and a carbon anode
TW363940B (en) A lithium-nickle-cobalt compound oxide, process thereof and anode active substance for storage battery
JP2001015106A (en) Alkaline battery
DE69418492T2 (en) CLOSED RECHARGEABLE CELLS CONTAIN MERCURY-FREE ZIN CAN ANODES AND PROCESS FOR PRODUCTION
EP0964467A3 (en) Manganese dioxide/zinc rechargeable cell with improved capacity and reversibility
US4913988A (en) Li2 CO3 -Ca(OH)2 additive for cathodes in nonaqueous cells
GB2160854A (en) Manganese dioxide, production and use thereof
EP1107338A3 (en) Lithium manganese compound oxide and non-aqueous electrolyte secondary battery
EP1198019A3 (en) Cathode active material for non aqueous lithium secondary battery and methods for preparation thereof
US4223078A (en) Lithium electric cell
KR970077800A (en) Lithium secondary battery and manufacturing method thereof
US3357865A (en) Dry cells
KR960027013A (en) Lithium- and Manganese (III / IV) -containing Spinels
CN109768269A (en) The porous carbon coating tin dioxide composite material of nitrogen sulphur codope, preparation method and application
JP3721678B2 (en) Non-aqueous electrolyte secondary battery
JPH11273729A (en) Lithium salt and sulfidic secondary battery
SU698561A3 (en) Primary chemical current source
US6153330A (en) Alkaline manganese dioxide electrochemical cell having coated can treated with silicon compounds
US5017445A (en) Dry cell

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
FPAY Annual fee payment

Payment date: 20130827

Year of fee payment: 11

FPAY Annual fee payment

Payment date: 20140822

Year of fee payment: 12

FPAY Annual fee payment

Payment date: 20150820

Year of fee payment: 13

EXPY Expiration of term