JP2017504161A - リチウム二次電池用陰極活物質 - Google Patents
リチウム二次電池用陰極活物質 Download PDFInfo
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- JP2017504161A JP2017504161A JP2016543063A JP2016543063A JP2017504161A JP 2017504161 A JP2017504161 A JP 2017504161A JP 2016543063 A JP2016543063 A JP 2016543063A JP 2016543063 A JP2016543063 A JP 2016543063A JP 2017504161 A JP2017504161 A JP 2017504161A
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- 239000006182 cathode active material Substances 0.000 title claims abstract description 92
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 22
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 19
- 239000010936 titanium Substances 0.000 claims abstract description 56
- 239000010949 copper Substances 0.000 claims abstract description 52
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 43
- 239000000956 alloy Substances 0.000 claims abstract description 43
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 35
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 35
- 239000010703 silicon Substances 0.000 claims abstract description 35
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 29
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims abstract description 28
- 229910052719 titanium Inorganic materials 0.000 claims abstract description 28
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 26
- 229910052802 copper Inorganic materials 0.000 claims abstract description 26
- 238000002441 X-ray diffraction Methods 0.000 claims description 16
- 238000005280 amorphization Methods 0.000 claims description 12
- VSZWPYCFIRKVQL-UHFFFAOYSA-N selanylidenegallium;selenium Chemical compound [Se].[Se]=[Ga].[Se]=[Ga] VSZWPYCFIRKVQL-UHFFFAOYSA-N 0.000 claims description 12
- 150000001875 compounds Chemical class 0.000 claims description 4
- 238000011066 ex-situ storage Methods 0.000 claims description 3
- 230000000052 comparative effect Effects 0.000 description 49
- 230000002441 reversible effect Effects 0.000 description 22
- 238000004626 scanning electron microscopy Methods 0.000 description 12
- 238000000034 method Methods 0.000 description 11
- 239000011149 active material Substances 0.000 description 9
- 239000000203 mixture Substances 0.000 description 9
- 230000000694 effects Effects 0.000 description 8
- 230000015572 biosynthetic process Effects 0.000 description 6
- 239000000779 smoke Substances 0.000 description 6
- 229910010338 TiFeSi Inorganic materials 0.000 description 5
- 239000013078 crystal Substances 0.000 description 5
- 238000012423 maintenance Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 239000011230 binding agent Substances 0.000 description 4
- 239000006258 conductive agent Substances 0.000 description 4
- 239000011159 matrix material Substances 0.000 description 4
- 239000002409 silicon-based active material Substances 0.000 description 4
- VZSRBBMJRBPUNF-UHFFFAOYSA-N 2-(2,3-dihydro-1H-inden-2-ylamino)-N-[3-oxo-3-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)propyl]pyrimidine-5-carboxamide Chemical compound C1C(CC2=CC=CC=C12)NC1=NC=C(C=N1)C(=O)NCCC(N1CC2=C(CC1)NN=N2)=O VZSRBBMJRBPUNF-UHFFFAOYSA-N 0.000 description 3
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 3
- 229910001416 lithium ion Inorganic materials 0.000 description 3
- 230000014759 maintenance of location Effects 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 229910016344 CuSi Inorganic materials 0.000 description 2
- AFCARXCZXQIEQB-UHFFFAOYSA-N N-[3-oxo-3-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)propyl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical compound O=C(CCNC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F)N1CC2=C(CC1)NN=N2 AFCARXCZXQIEQB-UHFFFAOYSA-N 0.000 description 2
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 229910003481 amorphous carbon Inorganic materials 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 239000003575 carbonaceous material Substances 0.000 description 2
- 238000002425 crystallisation Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 230000001151 other effect Effects 0.000 description 2
- 229910052726 zirconium Inorganic materials 0.000 description 2
- 229910000676 Si alloy Inorganic materials 0.000 description 1
- 229910006122 Si70Ti10Fe10Cu5Zr5 Inorganic materials 0.000 description 1
- 229910006120 Si70Ti11.5Fe11.5Cu7 Inorganic materials 0.000 description 1
- 229910006117 Si70Ti11Fe11Cu5Zr3 Inorganic materials 0.000 description 1
- 229910006135 Si70Ti12.5Fe12.5Cu5 Inorganic materials 0.000 description 1
- 229910006132 Si70Ti12Fe12Cu5Zr1 Inorganic materials 0.000 description 1
- 229910006129 Si70Ti13.5Fe13.5Cu3 Inorganic materials 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 239000002388 carbon-based active material Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 210000001787 dendrite Anatomy 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 229910021385 hard carbon Inorganic materials 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000005551 mechanical alloying Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000009686 powder production technique Methods 0.000 description 1
- 238000007712 rapid solidification Methods 0.000 description 1
- 229910021384 soft carbon Inorganic materials 0.000 description 1
Images
Classifications
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- 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
- H01M4/386—Silicon or alloys based on silicon
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/11—Making amorphous alloys
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C28/00—Alloys based on a metal not provided for in groups C22C5/00 - C22C27/00
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C45/00—Amorphous alloys
-
- 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
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
-
- 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
- H01M4/04—Processes of manufacture in general
- H01M4/0471—Processes of manufacture in general involving thermal treatment, e.g. firing, sintering, backing particulate active material, thermal decomposition, pyrolysis
-
- 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
- H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
- H01M4/134—Electrodes based on metals, Si or alloys
-
- 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
-
- 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
-
- 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
- H01M2004/026—Electrodes composed of, or comprising, active material characterised by the polarity
- H01M2004/027—Negative electrodes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2220/00—Batteries for particular applications
- H01M2220/30—Batteries in portable systems, e.g. mobile phone, laptop
-
- 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
たとえ前記特許公報に開示されたシリコン系活物質が比較的高い容量と改善された寿命特性を有することはあるが、近来になって携帯電話、ノートブックのようなモバイル機器の使用が急増しながら、二次電池の寿命特性をより改善することができるシリコン系活物質に対する要求が続いている。
比較例1ではシリコン(Si)、チタン(Ti)、鉄(Fe)を70%:15%:15%の割合で混合して、陰極活物質がSi70Ti15Fe15の組成を有するようになったことを除いては実施例1と同一に陰極活物質を製造した。
比較例2ではシリコン(Si)、チタン(Ti)、鉄(Fe)、銅(Cu)を70%:13.5%:13.5%:3%の割合で混合して、陰極活物質がSi70Ti13.5Fe13.5Cu3の組成を有するようになったことを除いては実施例1と同一に陰極活物質を製造した。
比較例3ではシリコン(Si)、チタン(Ti)、鉄(Fe)、銅(Cu)を70%:11.5%:11.5%:7%の割合で混合して、陰極活物質がSi70Ti11.5Fe11.5Cu7の組成を有するようになったことを除いては実施例1と同一に陰極活物質を製造した。
比較例4ではシリコン(Si)、チタン(Ti)、鉄(Fe)、銅(Cu)、ジルコニウム(Zr)を70%:10%:10%:5%:5%の割合で混合して、陰極活物質がSi70Ti10Fe10Cu5Zr5の組成を有するようになったことを除いては実施例1と同一に陰極活物質を製造した。
製造された陰極活物質に対してSEM(Scanning Electron Microscopy)分析を遂行した。
図2は、XRDパターンから非晶質化度を計算することを説明するための例示的な図面である。
図3は、実施例1乃至3、比較例1乃至4の陰極活物質の非晶質化度を計算して表で示したものである。
実施例1乃至3、比較例1乃至4で製造された陰極活物質に対してCu kα線XRD測定を遂行して、その結果を図4a乃至図4cに示した。
実施例1乃至3、比較例1乃至4で製造された陰極活物質を利用してコイン形状の極板を製造して、充放電評価を実施した。具体的に、実施例1及び比較例1乃至3の陰極活物質、導電性黒煙(SFG6系列黒煙)、導電剤(KB系列導電剤)及びバインダー(PI系列バインダー)を77:15:2:6の重量割合で混合して極板を製造した。そして、実施例1乃至3、比較例1及び4の陰極活物質、導電剤(KB系列導電剤)及びバインダー(PI系列バインダー)を86.6:3.4:10の重量の割合で混合して極板を製造した。
製造された極板に対して充放電を1回実施した後、活物質充電量(mAh/g)、活物質放電量(mAh/g)及び初期効率(%)を測定したし、その結果を図5a及び5bに示した。
0.5Cで充放電を50回繰り返してサイクル寿命特性及び可逆効率を測定したし、このような充放電方式は、本技術分野で一般に公知されているリチウム二次電池用活物質に対する充放電方式に準して遂行した。
Claims (6)
- シリコン(Si)、チタン(Ti)及び鉄(Fe)を含む合金を含んで、前記合金に銅(Cu)をさらに添加して、前記合金の非晶質化度を40%以上に高めたことを特徴とする、リチウム二次電池用陰極活物質。
- 前記合金に前記シリコン(Si)は、67乃至73at%で含まれることを特徴とする、請求項1に記載のリチウム二次電池用陰極活物質。
- 前記合金に含まれる前記チタン(Ti)に対する前記鉄(Fe)の割合は1対1であることを特徴とする、請求項1に記載のリチウム二次電池用陰極活物質。
- 前記合金に銅(Cu)は4乃至6at%で添加されることを特徴とする、請求項1に記載のリチウム二次電池用陰極活物質。
- 前記合金のex situ XRD分析結果、シリコン(Si)、チタン(Ti)及び鉄(Fe)が定数比で結合された化合物のピーク(Peak)が実質的に観察されないことを特徴とする、請求項1に記載のリチウム二次電池用陰極活物質。
- 前記合金は0.01乃至4at%のジルコニウム(Zr)をさらに含むことを特徴とする、請求項1に記載のリチウム二次電池用陰極活物質。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2014-0006829 | 2014-01-20 | ||
KR1020140006829A KR101620849B1 (ko) | 2014-01-20 | 2014-01-20 | 리튬 이차 전지용 음극 활물질 |
PCT/KR2014/012088 WO2015108281A1 (ko) | 2014-01-20 | 2014-12-09 | 리튬 이차 전지용 음극 활물질 |
Publications (2)
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JP2017504161A true JP2017504161A (ja) | 2017-02-02 |
JP6315730B2 JP6315730B2 (ja) | 2018-04-25 |
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JP2016543063A Active JP6315730B2 (ja) | 2014-01-20 | 2014-12-09 | リチウム二次電池用陰極活物質 |
Country Status (5)
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US (1) | US10283766B2 (ja) |
JP (1) | JP6315730B2 (ja) |
KR (1) | KR101620849B1 (ja) |
CN (1) | CN106415895B (ja) |
WO (1) | WO2015108281A1 (ja) |
Families Citing this family (1)
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EP3293802B1 (en) * | 2015-09-14 | 2020-10-21 | Toyota Jidosha Kabushiki Kaisha | Method of manufacturing an all-solid-state battery system |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2000017949A1 (fr) * | 1998-09-18 | 2000-03-30 | Canon Kabushiki Kaisha | Materiau electrode pour pole negatif d'une cellule secondaire au lithium, structure d'electrode utilisant ce materiau electrode, cellule secondaire au lithium utilisant cette structure d'electrode, et procede de fabrication de cette structure d'electrode et de cette cellule secondaire au lithium |
JP2007165300A (ja) * | 2005-11-17 | 2007-06-28 | Matsushita Electric Ind Co Ltd | 非水電解質二次電池、および非水電解質二次電池用負極材料の製造方法 |
JP2011070779A (ja) * | 2009-09-24 | 2011-04-07 | Sanyo Special Steel Co Ltd | リチウム二次電池負極物質用Si合金 |
JP2013179033A (ja) * | 2012-02-01 | 2013-09-09 | Sanyo Special Steel Co Ltd | Si系合金負極材料 |
Family Cites Families (4)
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KR100346542B1 (ko) * | 1999-01-25 | 2002-07-26 | 삼성에스디아이 주식회사 | 리튬 이차 전지 |
EP2302720B1 (en) * | 2003-03-26 | 2012-06-27 | Canon Kabushiki Kaisha | Electrode material for lithium secondary battery and electrode structure including the same |
JP5275702B2 (ja) * | 2008-06-25 | 2013-08-28 | 古河電気工業株式会社 | リチウム二次電池用合金負極材料 |
KR101263265B1 (ko) * | 2010-07-30 | 2013-05-10 | 일진전기 주식회사 | 음극 활물질 |
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2014
- 2014-01-20 KR KR1020140006829A patent/KR101620849B1/ko active IP Right Grant
- 2014-12-09 CN CN201480073677.6A patent/CN106415895B/zh active Active
- 2014-12-09 US US15/109,394 patent/US10283766B2/en active Active
- 2014-12-09 JP JP2016543063A patent/JP6315730B2/ja active Active
- 2014-12-09 WO PCT/KR2014/012088 patent/WO2015108281A1/ko active Application Filing
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2000017949A1 (fr) * | 1998-09-18 | 2000-03-30 | Canon Kabushiki Kaisha | Materiau electrode pour pole negatif d'une cellule secondaire au lithium, structure d'electrode utilisant ce materiau electrode, cellule secondaire au lithium utilisant cette structure d'electrode, et procede de fabrication de cette structure d'electrode et de cette cellule secondaire au lithium |
JP2007165300A (ja) * | 2005-11-17 | 2007-06-28 | Matsushita Electric Ind Co Ltd | 非水電解質二次電池、および非水電解質二次電池用負極材料の製造方法 |
JP2011070779A (ja) * | 2009-09-24 | 2011-04-07 | Sanyo Special Steel Co Ltd | リチウム二次電池負極物質用Si合金 |
JP2013179033A (ja) * | 2012-02-01 | 2013-09-09 | Sanyo Special Steel Co Ltd | Si系合金負極材料 |
Also Published As
Publication number | Publication date |
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KR101620849B1 (ko) | 2016-05-13 |
KR20150086777A (ko) | 2015-07-29 |
US20160329561A1 (en) | 2016-11-10 |
CN106415895B (zh) | 2019-05-28 |
CN106415895A (zh) | 2017-02-15 |
JP6315730B2 (ja) | 2018-04-25 |
WO2015108281A1 (ko) | 2015-07-23 |
US10283766B2 (en) | 2019-05-07 |
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