JP2021018919A - 二次電池とその製造方法 - Google Patents
二次電池とその製造方法 Download PDFInfo
- Publication number
- JP2021018919A JP2021018919A JP2019133807A JP2019133807A JP2021018919A JP 2021018919 A JP2021018919 A JP 2021018919A JP 2019133807 A JP2019133807 A JP 2019133807A JP 2019133807 A JP2019133807 A JP 2019133807A JP 2021018919 A JP2021018919 A JP 2021018919A
- Authority
- JP
- Japan
- Prior art keywords
- positive electrode
- negative electrode
- reinforcing member
- secondary battery
- tab
- 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
- 238000004519 manufacturing process Methods 0.000 title claims description 7
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 120
- 239000003792 electrolyte Substances 0.000 claims abstract description 17
- 238000010030 laminating Methods 0.000 claims abstract description 5
- 238000000034 method Methods 0.000 claims description 18
- 230000007423 decrease Effects 0.000 claims description 8
- 238000005304 joining Methods 0.000 claims description 7
- 239000007788 liquid Substances 0.000 claims description 7
- 239000007787 solid Substances 0.000 claims description 5
- 238000000926 separation method Methods 0.000 claims description 3
- 239000007784 solid electrolyte Substances 0.000 description 28
- 239000000203 mixture Substances 0.000 description 22
- 239000000463 material Substances 0.000 description 20
- 239000002002 slurry Substances 0.000 description 15
- -1 such as Chemical class 0.000 description 10
- 239000011230 binding agent Substances 0.000 description 7
- 150000001875 compounds Chemical class 0.000 description 7
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 6
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 6
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 6
- 239000012752 auxiliary agent Substances 0.000 description 6
- 229910052744 lithium Inorganic materials 0.000 description 6
- 238000003466 welding Methods 0.000 description 6
- 239000011888 foil Substances 0.000 description 5
- 229920000642 polymer Polymers 0.000 description 5
- 239000002904 solvent Substances 0.000 description 5
- YEJRWHAVMIAJKC-UHFFFAOYSA-N 4-Butyrolactone Chemical compound O=C1CCCO1 YEJRWHAVMIAJKC-UHFFFAOYSA-N 0.000 description 4
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 description 4
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 4
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 4
- 239000011244 liquid electrolyte Substances 0.000 description 4
- 229910001416 lithium ion Inorganic materials 0.000 description 4
- 239000007773 negative electrode material Substances 0.000 description 4
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 4
- 239000007774 positive electrode material Substances 0.000 description 4
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 3
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 229920001577 copolymer Polymers 0.000 description 3
- 238000001035 drying Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 229910052759 nickel Inorganic materials 0.000 description 3
- 239000004745 nonwoven fabric Substances 0.000 description 3
- 150000003839 salts Chemical class 0.000 description 3
- 239000010936 titanium Substances 0.000 description 3
- NJMWOUFKYKNWDW-UHFFFAOYSA-N 1-ethyl-3-methylimidazolium Chemical compound CCN1C=C[N+](C)=C1 NJMWOUFKYKNWDW-UHFFFAOYSA-N 0.000 description 2
- OIFBSDVPJOWBCH-UHFFFAOYSA-N Diethyl carbonate Chemical compound CCOC(=O)OCC OIFBSDVPJOWBCH-UHFFFAOYSA-N 0.000 description 2
- XTHFKEDIFFGKHM-UHFFFAOYSA-N Dimethoxyethane Chemical compound COCCOC XTHFKEDIFFGKHM-UHFFFAOYSA-N 0.000 description 2
- 229920001780 ECTFE Polymers 0.000 description 2
- KMTRUDSVKNLOMY-UHFFFAOYSA-N Ethylene carbonate Chemical compound O=C1OCCO1 KMTRUDSVKNLOMY-UHFFFAOYSA-N 0.000 description 2
- RAXXELZNTBOGNW-UHFFFAOYSA-O Imidazolium Chemical compound C1=C[NH+]=CN1 RAXXELZNTBOGNW-UHFFFAOYSA-O 0.000 description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 150000001450 anions Chemical class 0.000 description 2
- 239000003575 carbonaceous material Substances 0.000 description 2
- 150000001768 cations Chemical class 0.000 description 2
- 229920001940 conductive polymer Polymers 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- NKDDWNXOKDWJAK-UHFFFAOYSA-N dimethoxymethane Chemical compound COCOC NKDDWNXOKDWJAK-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 239000002608 ionic liquid Substances 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000002931 mesocarbon microbead Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 229920002493 poly(chlorotrifluoroethylene) Polymers 0.000 description 2
- 239000005023 polychlorotrifluoroethylene (PCTFE) polymer Substances 0.000 description 2
- 229920000128 polypyrrole Polymers 0.000 description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 description 2
- 229920002620 polyvinyl fluoride Polymers 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- RUOJZAUFBMNUDX-UHFFFAOYSA-N propylene carbonate Chemical compound CC1COC(=O)O1 RUOJZAUFBMNUDX-UHFFFAOYSA-N 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- HXJUTPCZVOIRIF-UHFFFAOYSA-N sulfolane Chemical compound O=S1(=O)CCCC1 HXJUTPCZVOIRIF-UHFFFAOYSA-N 0.000 description 2
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 2
- 229910052719 titanium Inorganic materials 0.000 description 2
- BQCIDUSAKPWEOX-UHFFFAOYSA-N 1,1-Difluoroethene Chemical compound FC(F)=C BQCIDUSAKPWEOX-UHFFFAOYSA-N 0.000 description 1
- MXLZUALXSYVAIV-UHFFFAOYSA-N 1,2-dimethyl-3-propylimidazol-1-ium Chemical compound CCCN1C=C[N+](C)=C1C MXLZUALXSYVAIV-UHFFFAOYSA-N 0.000 description 1
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 229920003026 Acene Polymers 0.000 description 1
- 229910016467 AlCl 4 Inorganic materials 0.000 description 1
- 229910020366 ClO 4 Inorganic materials 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- 239000002200 LIPON - lithium phosphorus oxynitride Substances 0.000 description 1
- 229910018869 La0.5Li0.5TiO3 Inorganic materials 0.000 description 1
- 229910018091 Li 2 S Inorganic materials 0.000 description 1
- 229910018119 Li 3 PO 4 Inorganic materials 0.000 description 1
- 229910003730 Li1.07Al0.69Ti1.46 (PO4)3 Inorganic materials 0.000 description 1
- 229910009178 Li1.3Al0.3Ti1.7(PO4)3 Inorganic materials 0.000 description 1
- 229910009496 Li1.5Al0.5Ge1.5 Inorganic materials 0.000 description 1
- 229910005317 Li14Zn(GeO4)4 Inorganic materials 0.000 description 1
- 229910007860 Li3.25Ge0.25P0.75S4 Inorganic materials 0.000 description 1
- 229910012316 Li3.6Si0.6P0.4O4 Inorganic materials 0.000 description 1
- 229910012851 LiCoO 2 Inorganic materials 0.000 description 1
- 229910010707 LiFePO 4 Inorganic materials 0.000 description 1
- 229910015643 LiMn 2 O 4 Inorganic materials 0.000 description 1
- 229910014689 LiMnO Inorganic materials 0.000 description 1
- 229910013290 LiNiO 2 Inorganic materials 0.000 description 1
- 229910003870 O—Li Inorganic materials 0.000 description 1
- 239000002033 PVDF binder Substances 0.000 description 1
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- 229910004283 SiO 4 Inorganic materials 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 1
- KLARSDUHONHPRF-UHFFFAOYSA-N [Li].[Mn] Chemical compound [Li].[Mn] KLARSDUHONHPRF-UHFFFAOYSA-N 0.000 description 1
- OHOIHSTWKIMQNC-UHFFFAOYSA-N [Li].[P]=O Chemical compound [Li].[P]=O OHOIHSTWKIMQNC-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- HSFWRNGVRCDJHI-UHFFFAOYSA-N alpha-acetylene Natural products C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 239000002041 carbon nanotube Substances 0.000 description 1
- 229910021393 carbon nanotube Inorganic materials 0.000 description 1
- 239000002388 carbon-based active material Substances 0.000 description 1
- 229920003174 cellulose-based polymer Polymers 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 238000003776 cleavage reaction Methods 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 238000007607 die coating method Methods 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
- IEJIGPNLZYLLBP-UHFFFAOYSA-N dimethyl carbonate Chemical compound COC(=O)OC IEJIGPNLZYLLBP-UHFFFAOYSA-N 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000000499 gel Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000002241 glass-ceramic Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 238000007756 gravure coating Methods 0.000 description 1
- 229910021385 hard carbon Inorganic materials 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 description 1
- 229910052809 inorganic oxide Inorganic materials 0.000 description 1
- 229910003480 inorganic solid Inorganic materials 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 229910000625 lithium cobalt oxide Inorganic materials 0.000 description 1
- BFZPBUKRYWOWDV-UHFFFAOYSA-N lithium;oxido(oxo)cobalt Chemical compound [Li+].[O-][Co]=O BFZPBUKRYWOWDV-UHFFFAOYSA-N 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000011255 nonaqueous electrolyte Substances 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 125000002467 phosphate group Chemical class [H]OP(=O)(O[H])O[*] 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 229920001197 polyacetylene Polymers 0.000 description 1
- 229920000767 polyaniline Polymers 0.000 description 1
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 1
- FVSKHRXBFJPNKK-UHFFFAOYSA-N propionitrile Chemical compound CCC#N FVSKHRXBFJPNKK-UHFFFAOYSA-N 0.000 description 1
- 125000001453 quaternary ammonium group Chemical group 0.000 description 1
- 230000007017 scission Effects 0.000 description 1
- 238000007650 screen-printing Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 229910021384 soft carbon Inorganic materials 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- 238000004528 spin coating Methods 0.000 description 1
- 229910052596 spinel Inorganic materials 0.000 description 1
- 239000011029 spinel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229920003048 styrene butadiene rubber Polymers 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- CBXCPBUEXACCNR-UHFFFAOYSA-N tetraethylammonium Chemical compound CC[N+](CC)(CC)CC CBXCPBUEXACCNR-UHFFFAOYSA-N 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- 229910052723 transition metal Inorganic materials 0.000 description 1
- 150000003624 transition metals Chemical class 0.000 description 1
- SEACXNRNJAXIBM-UHFFFAOYSA-N triethyl(methyl)azanium Chemical compound CC[N+](C)(CC)CC SEACXNRNJAXIBM-UHFFFAOYSA-N 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 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
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/531—Electrode connections inside a battery casing
- H01M50/54—Connection of several leads or tabs of plate-like electrode stacks, e.g. electrode pole straps or bridges
-
- 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
- H01M10/04—Construction or manufacture in general
- H01M10/0413—Large-sized flat cells or batteries for motive or stationary systems with plate-like electrodes
-
- 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
- H01M10/04—Construction or manufacture in general
- H01M10/0431—Cells with wound or folded electrodes
-
- 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
- H01M10/04—Construction or manufacture in general
- H01M10/0436—Small-sized flat cells or batteries for portable equipment
-
- 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
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/058—Construction or manufacture
- H01M10/0585—Construction or manufacture of accumulators having only flat construction elements, i.e. flat positive electrodes, flat negative electrodes and flat separators
-
- 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
- H01M10/058—Construction or manufacture
- H01M10/0587—Construction or manufacture of accumulators having only wound construction elements, i.e. wound positive electrodes, wound negative electrodes and wound separators
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/528—Fixed electrical connections, i.e. not intended for disconnection
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/531—Electrode connections inside a battery casing
- H01M50/538—Connection of several leads or tabs of wound or folded electrode stacks
-
- 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
-
- 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)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Secondary Cells (AREA)
- Connection Of Batteries Or Terminals (AREA)
Abstract
Description
図1(a)、(b)は、それぞれ、本発明の第一実施形態に係る二次電池100の斜視図、平面図である。二次電池100は、主に、蓄電および放電を行う素子として機能する積層体101と、正極補強部材102と、正極用タブ103と、負極補強部材104と、負極用タブ105と、積層体101を内包する外装体(不図示)と、で構成されている。電極構造については、積層型・巻回(捲回)型のいずれであってもよいが、本実施形態では、巻回型である場合について例示している。
、La0.51Li0.34TiO2.94、La0.5Li0.5TiO3等のペロブスカイト型化合物、Li14Zn(GeO4)4等のリシコン型化合物、Li7La3Zr2O12等のガーネット型化合物、Li1.3Al0.3Ti1.7(PO4)3やLi1.5Al0.5Ge1.5(PO4)3等のナシコン型化合物、Li3.25Ge0.25P0.75S4やLi3PS4等のチオリシコン型化合物、50Li4SiO4・50Li3BO3やLi2S−P2S5やLi2O−Li3O5−SiO2等のガラス化合物、Li3PO4やLi3.5Si0.5P0.5O4やLi2.9PO3.3N0.46等のリン酸化合物、Li2.9PO3.3N0.46(LIPON)やLi3.6Si0.6P0.4O4等のアモルファス、Li1.07Al0.69Ti1.46(PO4)3やLi1.5Al0.5Ge1.5(PO4)3などのガラスセラミックス、リチウム含有塩等の無機系の固体電解質、ポリエチレンオキシド等のポリマー系の固体電解質、リチウム含有塩やリチウムイオン伝導性のイオン液体を含むゲル系の固体電解質等よりなる群から選択される少なくとも1種を用いることができる。
図5(a)、(b)は、それぞれ、本発明の第二実施形態に係る二次電池200の斜視図、平面図である。図6は、図5(b)の二次電池200をE−E線を通る面で切断した際の断面図である。二次電池200の電極構造は、正極シート(正極106)、負極シート(負極109)、固体電解質シートを所定の形状に加工し、正極シートと負極シートとを、固体電解質シートを介在させて、交互に複数回ずつ重ねた積層型になっている。正極シートには正極補助部材102が接合され、負極シートには負極補助部材104が接合されている。その他の構成については、第一実施形態の構成と同様であり、第一実施形態と対応する箇所については、形状の違いによらず、同じ符号で示している。本実施形態では、少なくとも第一実施形態と同様の効果を得ることができる。
図8(a)、(b)は、それぞれ、本発明の第三実施形態に係る二次電池300の斜視図、平面図である。二次電池300の電極構造は、第二実施形態と同様の積層型になっているが、正極補強部材102、負極補強部材104の構成が異なっている。第二実施形態と対応する箇所については、形状の違いによらず、同じ符号で示している。本実施形態では、少なくとも第二第実施形態と同様の効果を得ることができる。
101・・・積層体
102・・・正極補強部材
103・・・正極用タブ
103a・・・正極用平坦部
103b・・・正極用突出部
105a・・・負極用平坦部
105b・・・負極用突出部
104・・・負極補強部材
105・・・負極用タブ
106・・・正極
107・・・正極集電体
108・・・正極合材
109・・・負極
110・・・負極集電体
111・・・負極合材
112・・・セパレータ
113・・・第一固体電解質シート
114・・・第二固体電解質シート
C・・・中心位置
Claims (10)
- 電解質を介して正極と負極とを交互に積層してなる積層体と、
前記積層体の一方の側壁側において、
前記正極を構成する板状の正極集電体の端部に取り付けられた正極補強部材と、
前記積層体の一方の側壁を覆うとともに、前記正極補強部材の端部に対して取り付けられた正極用タブと、
前記積層体の他方の側壁側において、
前記負極を構成する板状の負極集電体の端部に取り付けられた負極補強部材と、
前記積層体の他方の側壁を覆うとともに、前記負極補強部材の端部に対して取り付けられた負極用タブと、
前記積層体と、前記正極補強部材と、前記正極用タブと、前記負極補強部材と、前記負極用タブと、を内包する外装体と、を有することを特徴とする二次電池。 - 前記積層体が、前記正極用タブと前記負極用タブとを結ぶ軸線の周りに複数回巻回され、
前記正極用タブに対する前記正極補強部材の複数の取り付け位置が、互いに離間しており、
前記負極用タブに対する前記負極補強部材の複数の取り付け位置が、互いに離間していることを特徴とする請求項1に記載の二次電池。 - 前記積層体が、正極、負極をそれぞれ複数含み、
前記正極用タブに対する前記正極補強部材の複数の取り付け位置が、互いに離間しており、
前記負極用タブに対する前記負極補強部材の複数の取り付け位置が、互いに離間していることを特徴とする請求項1に記載の二次電池。 - 前記正極用タブが、前記正極補強部材を一方の主面に接合する正極用平坦部と、前記正極用平坦部の他方の主面から突出する正極用突出部と、を有し、
前記負極用タブが、前記負極補強部材を一方の主面に接合する負極用平坦部と、前記負極用平坦部の他方の主面から突出する負極用突出部と、を有することを特徴とすることを特徴とする請求項1〜3のいずれか一項に記載の二次電池。 - 前記正極集電体の主面と前記正極用タブの主面とのなす角度、前記負極集電体の主面と前記負極用タブの主面とのなす角度が、それぞれ、85度以上95度以下であることを特徴とする請求項1〜4のいずれか一項に記載の二次電池。
- 前記積層体の積層方向に並ぶ、複数の前記正極補強部材、複数の前記負極補強部材の中心位置が、それぞれ、前記正極用タブと前記負極用タブの中心同士を結ぶ中心線から離間しており、
それぞれの前記中心位置の離間の大きさが、前記積層方向の並び順にしたがって、単調に増加または減少することを特徴とする請求項1〜5のいずれか一項に記載の二次電池。 - 前記積層体の積層方向において、複数の前記正極補強部材、複数の前記負極補強部材が並んでおり、
前記正極用タブと前記負極用タブの中心同士を結ぶ中心線と直交する方向において、複数の前記正極補強部材の長さ、複数の負極補強部材の長さが、それぞれ、前記積層方向の並び順にしたがって、単調に増加または減少することを特徴とする請求項1〜5のいずれか一項に記載の二次電池。 - 前記電解質が固体であることを特徴とする請求項請求項1〜7のいずれか一項に記載の二次電池。
- 前記電解質が液体であることを特徴とする請求項請求項1〜7のいずれか一項に記載の二次電池。
- 請求項8または9のいずれかに記載の二次電池の製造方法であって、
前記正極集電体、前記負極集電体に、それぞれ前記正極補強部材、前記負極補強部材を取り付ける工程と、
前記正極補強部材が取り付けられた前記正極集電体、前記負極補強部材が取り付けられた前記負極集電体に、それぞれ、前記正極用タブ、前記負極用タブを取り付ける工程と、を有することを特徴とする二次電池の製造方法。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2019133807A JP7150672B2 (ja) | 2019-07-19 | 2019-07-19 | 二次電池とその製造方法 |
CN202010607117.1A CN112332043A (zh) | 2019-07-19 | 2020-06-29 | 二次电池及其制造方法 |
US16/929,157 US20210020895A1 (en) | 2019-07-19 | 2020-07-15 | Secondary battery and manufacturing method thereof |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2019133807A JP7150672B2 (ja) | 2019-07-19 | 2019-07-19 | 二次電池とその製造方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2021018919A true JP2021018919A (ja) | 2021-02-15 |
JP7150672B2 JP7150672B2 (ja) | 2022-10-11 |
Family
ID=74303354
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2019133807A Active JP7150672B2 (ja) | 2019-07-19 | 2019-07-19 | 二次電池とその製造方法 |
Country Status (3)
Country | Link |
---|---|
US (1) | US20210020895A1 (ja) |
JP (1) | JP7150672B2 (ja) |
CN (1) | CN112332043A (ja) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113437444B (zh) * | 2021-06-23 | 2023-10-27 | 东莞新能安科技有限公司 | 电化学装置和电子装置 |
CN114374000A (zh) * | 2022-01-12 | 2022-04-19 | 江苏正力新能电池技术有限公司 | 一种电池及储能装置 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001155711A (ja) * | 1999-11-30 | 2001-06-08 | Sanyo Electric Co Ltd | 電気エネルギー蓄積デバイス |
JP2018156901A (ja) * | 2017-03-21 | 2018-10-04 | 株式会社東芝 | 二次電池、電池パック、及び車両 |
JP2020119633A (ja) * | 2019-01-18 | 2020-08-06 | トヨタ自動車株式会社 | 全固体電池 |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101495294B1 (ko) * | 2011-11-08 | 2015-02-25 | 주식회사 엘지화학 | 전극 탭 보호 장치 및 이를 포함하는 이차 전지 |
JP6608188B2 (ja) * | 2015-06-23 | 2019-11-20 | 日立造船株式会社 | 全固体二次電池およびその製造方法 |
JP2018018600A (ja) * | 2016-07-25 | 2018-02-01 | トヨタ自動車株式会社 | 積層電池及びその製造方法 |
-
2019
- 2019-07-19 JP JP2019133807A patent/JP7150672B2/ja active Active
-
2020
- 2020-06-29 CN CN202010607117.1A patent/CN112332043A/zh active Pending
- 2020-07-15 US US16/929,157 patent/US20210020895A1/en not_active Abandoned
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001155711A (ja) * | 1999-11-30 | 2001-06-08 | Sanyo Electric Co Ltd | 電気エネルギー蓄積デバイス |
JP2018156901A (ja) * | 2017-03-21 | 2018-10-04 | 株式会社東芝 | 二次電池、電池パック、及び車両 |
JP2020119633A (ja) * | 2019-01-18 | 2020-08-06 | トヨタ自動車株式会社 | 全固体電池 |
Also Published As
Publication number | Publication date |
---|---|
US20210020895A1 (en) | 2021-01-21 |
CN112332043A (zh) | 2021-02-05 |
JP7150672B2 (ja) | 2022-10-11 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP6859059B2 (ja) | リチウムイオン二次電池及びその製造方法 | |
JP6735445B2 (ja) | 捲回型電池 | |
JP5720779B2 (ja) | バイポーラ全固体電池 | |
EP2500972B1 (en) | Lithium secondary battery having multi-directional lead-tab structure | |
US20120288747A1 (en) | Electrochemical device | |
WO2010125867A1 (ja) | 電気化学デバイスおよびその製造方法 | |
JP2011049065A (ja) | 非水電解質電池およびその製造方法 | |
JP4655593B2 (ja) | バイポーラ電池 | |
JP2018181622A (ja) | 積層型二次電池 | |
CN112424975A (zh) | 固体电池用正极、固体电池用正极的制造方法、及固体电池 | |
JP4670275B2 (ja) | バイポーラ電池および組電池 | |
US20210020895A1 (en) | Secondary battery and manufacturing method thereof | |
JP2009163928A (ja) | 電気化学デバイス、及び電気化学デバイスの製造方法 | |
CN111864211B (zh) | 二次电池用电极及其制造方法、二次电池 | |
JP7405243B2 (ja) | 集電体、蓄電素子及び蓄電モジュール | |
JP2014086388A (ja) | 組電池及びその製造方法 | |
JP2014007064A (ja) | 電池用集電体およびリチウムイオン電池 | |
CN111697261A (zh) | 锂二次电池 | |
JP7323055B2 (ja) | 蓄電デバイス用電極、蓄電デバイスおよび二次電池 | |
US20200328476A1 (en) | Secondary battery | |
JP6487716B2 (ja) | 蓄電デバイス及び蓄電モジュール | |
WO2011114421A1 (ja) | 電池及びその製造方法 | |
CN109390546A (zh) | 引线部件及蓄电装置 | |
JP5954339B2 (ja) | 角形二次電池及びその製造方法 | |
CN114391196B (zh) | 二次电池 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20200128 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A821 Effective date: 20200128 |
|
A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20210329 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20220405 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20220527 |
|
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: 20220913 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20220928 |
|
R150 | Certificate of patent or registration of utility model |
Ref document number: 7150672 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
R157 | Certificate of patent or utility model (correction) |
Free format text: JAPANESE INTERMEDIATE CODE: R157 |