JPWO2020116160A1 - リチウムイオン二次電池用正極電極、リチウムイオン二次電池用電極ペースト、リチウムイオン二次電池 - Google Patents
リチウムイオン二次電池用正極電極、リチウムイオン二次電池用電極ペースト、リチウムイオン二次電池 Download PDFInfo
- Publication number
- JPWO2020116160A1 JPWO2020116160A1 JP2019565481A JP2019565481A JPWO2020116160A1 JP WO2020116160 A1 JPWO2020116160 A1 JP WO2020116160A1 JP 2019565481 A JP2019565481 A JP 2019565481A JP 2019565481 A JP2019565481 A JP 2019565481A JP WO2020116160 A1 JPWO2020116160 A1 JP WO2020116160A1
- Authority
- JP
- Japan
- Prior art keywords
- lithium
- lithium ion
- ion secondary
- secondary battery
- iron phosphate
- Prior art date
- Legal status (The legal status 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 status listed.)
- Granted
Links
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 title claims abstract description 39
- 229910001416 lithium ion Inorganic materials 0.000 title claims abstract description 39
- 239000002003 electrode paste Substances 0.000 title claims description 8
- 239000002245 particle Substances 0.000 claims abstract description 97
- 239000011149 active material Substances 0.000 claims abstract description 46
- GELKBWJHTRAYNV-UHFFFAOYSA-K lithium iron phosphate Chemical compound [Li+].[Fe+2].[O-]P([O-])([O-])=O GELKBWJHTRAYNV-UHFFFAOYSA-K 0.000 claims abstract description 38
- ILXAVRFGLBYNEJ-UHFFFAOYSA-K lithium;manganese(2+);phosphate Chemical compound [Li+].[Mn+2].[O-]P([O-])([O-])=O ILXAVRFGLBYNEJ-UHFFFAOYSA-K 0.000 claims abstract description 9
- DVATZODUVBMYHN-UHFFFAOYSA-K lithium;iron(2+);manganese(2+);phosphate Chemical compound [Li+].[Mn+2].[Fe+2].[O-]P([O-])([O-])=O DVATZODUVBMYHN-UHFFFAOYSA-K 0.000 claims description 28
- 238000002156 mixing Methods 0.000 description 20
- 239000007774 positive electrode material Substances 0.000 description 15
- 239000011164 primary particle Substances 0.000 description 12
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 10
- 239000006185 dispersion Substances 0.000 description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 10
- 230000000052 comparative effect Effects 0.000 description 9
- AWKHTBXFNVGFRX-UHFFFAOYSA-K iron(2+);manganese(2+);phosphate Chemical compound [Mn+2].[Fe+2].[O-]P([O-])([O-])=O AWKHTBXFNVGFRX-UHFFFAOYSA-K 0.000 description 9
- 238000000034 method Methods 0.000 description 9
- 239000000243 solution Substances 0.000 description 9
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 8
- 238000005259 measurement Methods 0.000 description 8
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 description 6
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 6
- 239000011230 binding agent Substances 0.000 description 6
- 150000001875 compounds Chemical class 0.000 description 6
- 239000010450 olivine Substances 0.000 description 6
- 229910052609 olivine Inorganic materials 0.000 description 6
- 229910052799 carbon Inorganic materials 0.000 description 5
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- 230000007423 decrease Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 239000007791 liquid phase Substances 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 239000011163 secondary particle Substances 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 239000006228 supernatant Substances 0.000 description 4
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 3
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 description 3
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 3
- DJBQSLSCMPHXBH-UHFFFAOYSA-K P(=O)([O-])([O-])[O-].[Fe+2].[Li+].[Fe+2] Chemical compound P(=O)([O-])([O-])[O-].[Fe+2].[Li+].[Fe+2] DJBQSLSCMPHXBH-UHFFFAOYSA-K 0.000 description 3
- 239000006230 acetylene black Substances 0.000 description 3
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 3
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 3
- 238000007599 discharging Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000011888 foil Substances 0.000 description 3
- 239000008103 glucose Substances 0.000 description 3
- 238000005469 granulation Methods 0.000 description 3
- 230000003179 granulation Effects 0.000 description 3
- 150000002500 ions Chemical class 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- 239000011572 manganese Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- 238000010532 solid phase synthesis reaction Methods 0.000 description 3
- 239000002904 solvent Substances 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- OIFBSDVPJOWBCH-UHFFFAOYSA-N Diethyl carbonate Chemical compound CCOC(=O)OCC OIFBSDVPJOWBCH-UHFFFAOYSA-N 0.000 description 2
- KMTRUDSVKNLOMY-UHFFFAOYSA-N Ethylene carbonate Chemical compound O=C1OCCO1 KMTRUDSVKNLOMY-UHFFFAOYSA-N 0.000 description 2
- 229910015645 LiMn Inorganic materials 0.000 description 2
- 229910013870 LiPF 6 Inorganic materials 0.000 description 2
- XGZJLKFCSVQXNP-UHFFFAOYSA-K [Fe+2].P(=O)([O-])([O-])[O-].[Fe+2] Chemical compound [Fe+2].P(=O)([O-])([O-])[O-].[Fe+2] XGZJLKFCSVQXNP-UHFFFAOYSA-K 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 239000012752 auxiliary agent Substances 0.000 description 2
- WERYXYBDKMZEQL-UHFFFAOYSA-N butane-1,4-diol Chemical compound OCCCCO WERYXYBDKMZEQL-UHFFFAOYSA-N 0.000 description 2
- 238000005119 centrifugation Methods 0.000 description 2
- 239000011267 electrode slurry Substances 0.000 description 2
- 239000008151 electrolyte solution Substances 0.000 description 2
- PQVSTLUFSYVLTO-UHFFFAOYSA-N ethyl n-ethoxycarbonylcarbamate Chemical compound CCOC(=O)NC(=O)OCC PQVSTLUFSYVLTO-UHFFFAOYSA-N 0.000 description 2
- 238000010304 firing Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- SURQXAFEQWPFPV-UHFFFAOYSA-L iron(2+) sulfate heptahydrate Chemical compound O.O.O.O.O.O.O.[Fe+2].[O-]S([O-])(=O)=O SURQXAFEQWPFPV-UHFFFAOYSA-L 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 229910052744 lithium Inorganic materials 0.000 description 2
- GLXDVVHUTZTUQK-UHFFFAOYSA-M lithium hydroxide monohydrate Substances [Li+].O.[OH-] GLXDVVHUTZTUQK-UHFFFAOYSA-M 0.000 description 2
- 229940040692 lithium hydroxide monohydrate Drugs 0.000 description 2
- 229910052748 manganese Inorganic materials 0.000 description 2
- 239000012299 nitrogen atmosphere Substances 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 239000002244 precipitate Substances 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- DNIAPMSPPWPWGF-VKHMYHEASA-N (+)-propylene glycol Chemical compound C[C@H](O)CO DNIAPMSPPWPWGF-VKHMYHEASA-N 0.000 description 1
- YPFDHNVEDLHUCE-UHFFFAOYSA-N 1,3-propanediol Substances OCCCO YPFDHNVEDLHUCE-UHFFFAOYSA-N 0.000 description 1
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 229920006369 KF polymer Polymers 0.000 description 1
- 229910010707 LiFePO 4 Inorganic materials 0.000 description 1
- 229910015643 LiMn 2 O 4 Inorganic materials 0.000 description 1
- 229910002991 LiNi0.5Co0.2Mn0.3O2 Inorganic materials 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical group [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- CZMRCDWAGMRECN-UGDNZRGBSA-N Sucrose Chemical compound O[C@H]1[C@H](O)[C@@H](CO)O[C@@]1(CO)O[C@@H]1[C@H](O)[C@@H](O)[C@H](O)[C@@H](CO)O1 CZMRCDWAGMRECN-UGDNZRGBSA-N 0.000 description 1
- 229930006000 Sucrose Natural products 0.000 description 1
- UWHCKJMYHZGTIT-UHFFFAOYSA-N Tetraethylene glycol, Natural products OCCOCCOCCOCCO UWHCKJMYHZGTIT-UHFFFAOYSA-N 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 229910021383 artificial graphite Inorganic materials 0.000 description 1
- WQZGKKKJIJFFOK-VFUOTHLCSA-N beta-D-glucose Chemical compound OC[C@H]1O[C@@H](O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-VFUOTHLCSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 150000001720 carbohydrates Chemical class 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 239000002041 carbon nanotube Substances 0.000 description 1
- 229910021393 carbon nanotube Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- QHGJSLXSVXVKHZ-UHFFFAOYSA-N dilithium;dioxido(dioxo)manganese Chemical compound [Li+].[Li+].[O-][Mn]([O-])(=O)=O QHGJSLXSVXVKHZ-UHFFFAOYSA-N 0.000 description 1
- 239000002612 dispersion medium Substances 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 229910021389 graphene Inorganic materials 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 229910000398 iron phosphate Inorganic materials 0.000 description 1
- WBJZTOZJJYAKHQ-UHFFFAOYSA-K iron(3+) phosphate Chemical compound [Fe+3].[O-]P([O-])([O-])=O WBJZTOZJJYAKHQ-UHFFFAOYSA-K 0.000 description 1
- 239000003273 ketjen black Substances 0.000 description 1
- OMLOBRLMBKBLOH-UHFFFAOYSA-K lithium manganese(2+) phosphate Chemical compound [Mn+2].[Li+].P(=O)([O-])([O-])[O-].[Mn+2] OMLOBRLMBKBLOH-UHFFFAOYSA-K 0.000 description 1
- ISPYRSDWRDQNSW-UHFFFAOYSA-L manganese(II) sulfate monohydrate Chemical compound O.[Mn+2].[O-]S([O-])(=O)=O ISPYRSDWRDQNSW-UHFFFAOYSA-L 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 239000002105 nanoparticle Substances 0.000 description 1
- 239000007773 negative electrode material Substances 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 229920000166 polytrimethylene carbonate Polymers 0.000 description 1
- 229920002620 polyvinyl fluoride Polymers 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 239000012798 spherical particle Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 229920003048 styrene butadiene rubber Polymers 0.000 description 1
- 239000005720 sucrose Substances 0.000 description 1
- 235000000346 sugar Nutrition 0.000 description 1
- 150000008163 sugars Chemical class 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- ZIBGPFATKBEMQZ-UHFFFAOYSA-N triethylene glycol Chemical compound OCCOCCOCCO ZIBGPFATKBEMQZ-UHFFFAOYSA-N 0.000 description 1
Images
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
- H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
- H01M4/131—Electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
-
- 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
- H01M4/364—Composites as mixtures
-
- 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
- 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
- H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
- H01M4/136—Electrodes based on inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy
-
- 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
- H01M4/139—Processes of manufacture
- H01M4/1391—Processes of manufacture of electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
-
- 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
- H01M4/139—Processes of manufacture
- H01M4/1397—Processes of manufacture of electrodes based on inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy
-
- 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
- H01M4/483—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides for non-aqueous cells
-
- 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
- H01M4/5825—Oxygenated metallic salts or polyanionic structures, e.g. borates, phosphates, silicates, olivines
-
- 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
- H01M2004/028—Positive electrodes
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Inorganic Chemistry (AREA)
- Composite Materials (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Crystallography & Structural Chemistry (AREA)
- Battery Electrode And Active Subsutance (AREA)
- Secondary Cells (AREA)
Abstract
Description
各実施例および比較例で作製した電極板を直径15.9mmに切り出して正極電極とし、直径16.1mm厚さ0.2mmに切り出したリチウム箔を負極電極とし、直径20mmに切り出したセティーラ(登録商標)(東レ株式会社製)セパレータとして、LiPF6を1M含有するエチレンカーボネート:ジエチルカーボネート=3:7(体積比)の溶液を電解液として、2032型コイン電池を作製し、電気化学評価を行った。
測定Aと同様に作製した正極電極と、負極電極として市販のカーボン系負極(負極活物質:日立化成株式会社製 人造黒鉛MAG)、セパレータとしてセティーラ(登録商標)、電解液としてLiPF6を1M含有するエチレンカーボネート:ジエチルカーボネート=3:7(体積比)を用いて3Ahセルの積層ラミネートセルを作製した。積層数は正極(サイズ:70mm×40mm)を21層、負極(サイズ:74mm×44mm)を22層とし、対向する正極と負極の容量比率(NP比)は1.05とした。
純水350gに水酸化リチウム1水和物を360ミリモル添加した。得られた溶液に、85%リン酸水溶液を用いてリン酸を120ミリモルさらに添加し、さらに硫酸鉄(II)7水和物を120ミリモル添加した。得られた溶液をオートクレーブに移し、容器内が190℃を維持するように4時間加熱保持した。加熱後に溶液の上澄みを捨て、沈殿物としてリン酸鉄リチウムを得た。得られたリン酸鉄リチウムは純水にて洗浄した後に、遠心分離にて上澄みを除去することを5回繰り返し、最後に再度純水を加えて分散液とした。
リン酸鉄リチウム粒子、リン酸マンガン鉄リチウム粒子及び層状酸化物系活物質粒子の混合割合を0.30:0.55:0.15とした以外は実施例1と同様にして電極板を作製した。
リン酸鉄リチウム粒子、リン酸マンガン鉄リチウム粒子及び層状酸化物系活物質粒子の混合割合を0.40:0.40:0.20とした以外は実施例1と同様にして電極板を作製した。
リン酸鉄リチウム粒子、リン酸マンガン鉄リチウム粒子及び層状酸化物系活物質粒子の混合割合を0.30:0.35:0.35とした以外は実施例1と同様にして電極板を作製した。
リン酸鉄リチウム粒子、リン酸マンガン鉄リチウム粒子及び層状酸化物系活物質粒子の混合割合を0.55:0.20:0.25とした以外は実施例1と同様にして電極板を作製した。
リン酸鉄リチウム粒子、リン酸マンガン鉄リチウム粒子及び層状酸化物系活物質粒子の混合割合を0.23:0.65:0.12とした以外は実施例1と同様にして電極板を作製した。
リン酸鉄リチウム粒子、リン酸マンガン鉄リチウム粒子及び層状酸化物系活物質粒子の混合割合を1:0:0、すなわちリン酸鉄リチウムの単体とした以外は実施例1と同様にして電極板を作製した。
リン酸鉄リチウム粒子、リン酸マンガン鉄リチウム粒子及び層状酸化物系活物質粒子の混合割合を0:1:0、すなわちリン酸マンガン鉄リチウムの単体とした以外は実施例1と同様にして電極板を作製した。
リン酸鉄リチウム粒子、リン酸マンガン鉄リチウム粒子及び層状酸化物系活物質粒子の混合割合を0.00:0.00:1.00、すなわち層状酸化物の単体とした以外は実施例1と同様にして電極板を作製した。
リン酸鉄リチウム粒子、リン酸マンガン鉄リチウム粒子及び層状酸化物系活物質粒子の混合割合を0.50:0.50:0.00とした以外は実施例1と同様にして電極板を作製した。
リン酸鉄リチウム粒子、リン酸マンガン鉄リチウム粒子及び層状酸化物系活物質粒子の混合割合を0.00:0.80:0.20とした以外は実施例1と同様にして電極板を作製した。
リン酸鉄リチウム粒子、リン酸マンガン鉄リチウム粒子及び層状酸化物系活物質粒子の混合割合を0.80:0.10:0.10とした以外は実施例1と同様にして電極板を作製した。
リン酸鉄リチウム粒子、リン酸マンガン鉄リチウム粒子及び層状酸化物系活物質粒子の混合割合を0.10:0.80:0.10とした以外は実施例1と同様にして電極板を作製した。
リン酸マンガン鉄リチウム粒子の代わりにマンガン酸リチウムLiMn2O4(宝泉株式会社製)粒子を用いた以外は実施例1と同様にして電極板を作製した。
Claims (6)
- リン酸鉄リチウム粒子、リン酸マンガン鉄リチウム粒子および層状酸化物系活物質粒子を重量比x:y:z(0.10≦x≦0.60、0.10≦y≦0.70、0.10≦z≦0.40、x+y+z=1)で含有するリチウムイオン二次電池用正極電極。
- z≦0.30である、請求項1記載のリチウムイオン二次電池用正極電極。
- 0.20≦x≦0.45かつ0.30≦y≦0.60である、請求項1または2に記載のリチウムイオン二次電池用正極電極。
- 請求項1〜3のいずれかに記載のリチウムイオン二次電池用正極電極を用いてなるリチウムイオン二次電池。
- リン酸鉄リチウム粒子、リン酸マンガン鉄リチウム粒子および層状酸化物系活物質粒子を重量比x:y:z(0.10≦x≦0.60、0.10≦y≦0.70、0.10≦z≦0.40、x+y+z=1)で含有するリチウムイオン二次電池用電極ペースト。
- 放電電圧と放電容量からなる放電曲線において、2つのプラトー領域の間に1つの非プラトー領域を有し、非プラトー領域の幅がSOC換算で20%以上であるリチウムイオン2次電池。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2018227889 | 2018-12-05 | ||
JP2018227889 | 2018-12-05 | ||
PCT/JP2019/045400 WO2020116160A1 (ja) | 2018-12-05 | 2019-11-20 | リチウムイオン二次電池用正極電極、リチウムイオン二次電池用電極ペースト、リチウムイオン二次電池 |
Publications (3)
Publication Number | Publication Date |
---|---|
JPWO2020116160A1 true JPWO2020116160A1 (ja) | 2021-10-14 |
JPWO2020116160A5 JPWO2020116160A5 (ja) | 2022-09-13 |
JP7259766B2 JP7259766B2 (ja) | 2023-04-18 |
Family
ID=70975444
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2019565481A Active JP7259766B2 (ja) | 2018-12-05 | 2019-11-20 | リチウムイオン二次電池用正極電極、リチウムイオン二次電池用電極ペースト、リチウムイオン二次電池 |
Country Status (6)
Country | Link |
---|---|
US (1) | US20220006076A1 (ja) |
EP (1) | EP3893296A4 (ja) |
JP (1) | JP7259766B2 (ja) |
KR (1) | KR102305491B1 (ja) |
CN (1) | CN113039669A (ja) |
WO (1) | WO2020116160A1 (ja) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN115132975A (zh) * | 2021-03-25 | 2022-09-30 | 比亚迪股份有限公司 | 一种锂离子电池及动力车辆 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2012043682A (ja) * | 2010-08-20 | 2012-03-01 | Toshiba Corp | 組電池システム |
JP2013089522A (ja) * | 2011-10-20 | 2013-05-13 | Tdk Corp | 組電池及び蓄電装置 |
CN105449269A (zh) * | 2016-01-08 | 2016-03-30 | 深圳市沃特玛电池有限公司 | 一种锂离子电池 |
JP2018063191A (ja) * | 2016-10-13 | 2018-04-19 | カルソニックカンセイ株式会社 | 充電状態推定装置 |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006252895A (ja) | 2005-03-09 | 2006-09-21 | Sony Corp | 電池 |
JP5262143B2 (ja) | 2008-01-31 | 2013-08-14 | トヨタ自動車株式会社 | 正極体およびその製造方法 |
JP5381024B2 (ja) | 2008-11-06 | 2014-01-08 | 株式会社Gsユアサ | リチウム二次電池用正極及びリチウム二次電池 |
KR101182428B1 (ko) * | 2010-07-20 | 2012-09-12 | 삼성에스디아이 주식회사 | 양극 및 이를 포함한 리튬 전지 |
US20120231341A1 (en) * | 2011-03-09 | 2012-09-13 | Jun-Sik Kim | Positive active material, and electrode and lithium battery containing the positive active material |
WO2013005704A1 (ja) * | 2011-07-04 | 2013-01-10 | 昭栄化学工業株式会社 | リチウムイオン二次電池用正極材料、リチウムイオン二次電池用正極及びリチウムイオン二次電池 |
KR101560862B1 (ko) * | 2012-08-02 | 2015-10-15 | 주식회사 엘지화학 | 출력 특성이 향상된 혼합 양극활물질 및 이를 포함하는 리튬이차전지 |
JP5847329B2 (ja) * | 2012-11-14 | 2016-01-20 | 古河電気工業株式会社 | 正極活物質及びその製造方法、並びに非水電解質二次電池用正極、非水電解質二次電池 |
KR101895903B1 (ko) * | 2012-12-21 | 2018-09-07 | 삼성에스디아이 주식회사 | 리튬 이차 전지용 양극 활물질 및 이를 포함하는 리튬 이차 전지 |
CN104300123B (zh) * | 2014-03-20 | 2017-05-31 | 中航锂电(江苏)有限公司 | 一种混合正极材料、使用该正极材料的正极片及锂离子电池 |
CN113299875A (zh) * | 2018-02-26 | 2021-08-24 | 宁德新能源科技有限公司 | 极片和锂离子电池 |
-
2019
- 2019-11-20 EP EP19892727.9A patent/EP3893296A4/en active Pending
- 2019-11-20 US US17/298,366 patent/US20220006076A1/en active Pending
- 2019-11-20 KR KR1020217016843A patent/KR102305491B1/ko active IP Right Grant
- 2019-11-20 CN CN201980078106.4A patent/CN113039669A/zh active Pending
- 2019-11-20 WO PCT/JP2019/045400 patent/WO2020116160A1/ja unknown
- 2019-11-20 JP JP2019565481A patent/JP7259766B2/ja active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2012043682A (ja) * | 2010-08-20 | 2012-03-01 | Toshiba Corp | 組電池システム |
JP2013089522A (ja) * | 2011-10-20 | 2013-05-13 | Tdk Corp | 組電池及び蓄電装置 |
CN105449269A (zh) * | 2016-01-08 | 2016-03-30 | 深圳市沃特玛电池有限公司 | 一种锂离子电池 |
JP2018063191A (ja) * | 2016-10-13 | 2018-04-19 | カルソニックカンセイ株式会社 | 充電状態推定装置 |
Also Published As
Publication number | Publication date |
---|---|
WO2020116160A1 (ja) | 2020-06-11 |
CN113039669A (zh) | 2021-06-25 |
KR102305491B1 (ko) | 2021-09-27 |
US20220006076A1 (en) | 2022-01-06 |
EP3893296A1 (en) | 2021-10-13 |
JP7259766B2 (ja) | 2023-04-18 |
EP3893296A4 (en) | 2022-08-10 |
KR20210076147A (ko) | 2021-06-23 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP6946836B2 (ja) | リチウム固体電池、およびリチウム固体電池の製造方法 | |
JP2016021393A (ja) | 二次電池用負極活物質及びその製造方法 | |
JP5818115B2 (ja) | 非水電解液二次電池およびその利用 | |
CN105474449B (zh) | 锂二次电池 | |
KR102468252B1 (ko) | 이차 전지 전극용 바인더 조성물, 이차 전지 전극용 슬러리 조성물, 이차 전지용 전극 및 이차 전지 | |
JP6477690B2 (ja) | リチウムイオン二次電池電極用バインダー組成物、リチウムイオン二次電池電極用スラリー組成物、リチウムイオン二次電池用電極、および、リチウムイオン二次電池 | |
JP2017520892A (ja) | リチウム電池用正極 | |
KR20200092310A (ko) | 전기 화학 소자용 도전재 페이스트, 전기 화학 소자 정극용 슬러리 조성물 및 그 제조 방법, 전기 화학 소자용 정극, 그리고 전기 화학 소자 | |
KR101368124B1 (ko) | 비수 전해액형 리튬 이온 2차 전지 | |
JP2021009838A (ja) | リチウムイオン二次電池用正極 | |
KR20210054059A (ko) | 전기 화학 소자 전극용 도전성 접착제 조성물의 제조 방법 | |
US20220077468A1 (en) | Method of Manufacturing Electrode of All-Solid-State Battery and Electrode of All-Solid-State Battery Manufactured Using the Same | |
JP7404852B2 (ja) | 硫黄系活物質 | |
JP2020064824A (ja) | 全固体電池 | |
KR101504050B1 (ko) | 리튬 이온 이차 전지 제조 방법 | |
KR101572454B1 (ko) | 고출력의 이차전지용 양극 및 이를 포함하는 이차전지 | |
JP7259766B2 (ja) | リチウムイオン二次電池用正極電極、リチウムイオン二次電池用電極ペースト、リチウムイオン二次電池 | |
KR20210045591A (ko) | 계면 특성이 향상된 전고체 전지용 전극 및 이의 제조방법 | |
JP7484790B2 (ja) | 全固体電池 | |
JP7371388B2 (ja) | リチウムイオン二次電池用正極材料 | |
WO2020261879A1 (ja) | リチウムイオン二次電池用正極およびリチウムイオン二次電池 | |
CN111788723B (zh) | 用于锂离子电池的正极浆料 | |
JP2020053154A (ja) | 負極合材 | |
JP7494647B2 (ja) | リチウムイオン二次電池用正極 | |
JP2019096541A (ja) | 全固体電池 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20220905 |
|
A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20220905 |
|
A871 | Explanation of circumstances concerning accelerated examination |
Free format text: JAPANESE INTERMEDIATE CODE: A871 Effective date: 20220905 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20221025 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20221101 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20221213 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20230124 |
|
TRDD | Decision of grant or rejection written | ||
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20230307 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20230320 |
|
R151 | Written notification of patent or utility model registration |
Ref document number: 7259766 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R151 |