JPWO2017010042A1 - 捲回型電池 - Google Patents
捲回型電池 Download PDFInfo
- Publication number
- JPWO2017010042A1 JPWO2017010042A1 JP2017528276A JP2017528276A JPWO2017010042A1 JP WO2017010042 A1 JPWO2017010042 A1 JP WO2017010042A1 JP 2017528276 A JP2017528276 A JP 2017528276A JP 2017528276 A JP2017528276 A JP 2017528276A JP WO2017010042 A1 JPWO2017010042 A1 JP WO2017010042A1
- Authority
- JP
- Japan
- Prior art keywords
- current collector
- electrode
- collector sheet
- insulating layer
- active material
- 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
- 238000004804 winding Methods 0.000 title claims description 23
- 239000011149 active material Substances 0.000 claims abstract description 28
- 229910052751 metal Inorganic materials 0.000 claims description 34
- 239000002184 metal Substances 0.000 claims description 34
- 238000007789 sealing Methods 0.000 claims description 11
- 238000010248 power generation Methods 0.000 claims description 9
- 239000003792 electrolyte Substances 0.000 claims description 5
- 239000010410 layer Substances 0.000 description 118
- 239000007774 positive electrode material Substances 0.000 description 21
- 239000007773 negative electrode material Substances 0.000 description 18
- -1 polysiloxane Polymers 0.000 description 14
- 239000010408 film Substances 0.000 description 12
- 239000000463 material Substances 0.000 description 11
- 238000003466 welding Methods 0.000 description 11
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical group [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 10
- 229910001416 lithium ion Inorganic materials 0.000 description 10
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 6
- 239000004820 Pressure-sensitive adhesive Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 4
- 230000001070 adhesive effect Effects 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- 239000011267 electrode slurry Substances 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000011255 nonaqueous electrolyte Substances 0.000 description 4
- 239000010935 stainless steel Substances 0.000 description 4
- 229910001220 stainless steel Inorganic materials 0.000 description 4
- 239000004743 Polypropylene Substances 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 239000011230 binding agent Substances 0.000 description 3
- 239000006258 conductive agent Substances 0.000 description 3
- 229920001971 elastomer Polymers 0.000 description 3
- 229910052744 lithium Inorganic materials 0.000 description 3
- 229910003002 lithium salt Inorganic materials 0.000 description 3
- 159000000002 lithium salts Chemical class 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 229910052759 nickel Inorganic materials 0.000 description 3
- 229920000098 polyolefin Polymers 0.000 description 3
- 229920001155 polypropylene Polymers 0.000 description 3
- 239000005060 rubber Substances 0.000 description 3
- 229910000838 Al alloy Inorganic materials 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229910000881 Cu alloy Inorganic materials 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 2
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 description 2
- 229910000990 Ni alloy Inorganic materials 0.000 description 2
- 239000004734 Polyphenylene sulfide Substances 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 2
- 239000012790 adhesive layer Substances 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 239000003125 aqueous solvent Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000011888 foil Substances 0.000 description 2
- GAEKPEKOJKCEMS-UHFFFAOYSA-N gamma-valerolactone Chemical compound CC1CCC(=O)O1 GAEKPEKOJKCEMS-UHFFFAOYSA-N 0.000 description 2
- 229910002804 graphite Inorganic materials 0.000 description 2
- 239000010439 graphite Substances 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Chemical compound O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 description 2
- 229920001721 polyimide Polymers 0.000 description 2
- 229920000069 polyphenylene sulfide Polymers 0.000 description 2
- 229920001296 polysiloxane Polymers 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 239000010409 thin film Substances 0.000 description 2
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 description 1
- OWNRRUFOJXFKCU-UHFFFAOYSA-N Bromadiolone Chemical compound C=1C=C(C=2C=CC(Br)=CC=2)C=CC=1C(O)CC(C=1C(OC2=CC=CC=C2C=1O)=O)C1=CC=CC=C1 OWNRRUFOJXFKCU-UHFFFAOYSA-N 0.000 description 1
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- OIFBSDVPJOWBCH-UHFFFAOYSA-N Diethyl carbonate Chemical compound CCOC(=O)OCC OIFBSDVPJOWBCH-UHFFFAOYSA-N 0.000 description 1
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- KMTRUDSVKNLOMY-UHFFFAOYSA-N Ethylene carbonate Chemical compound O=C1OCCO1 KMTRUDSVKNLOMY-UHFFFAOYSA-N 0.000 description 1
- 244000043261 Hevea brasiliensis Species 0.000 description 1
- 229910013063 LiBF 4 Inorganic materials 0.000 description 1
- 229910012851 LiCoO 2 Inorganic materials 0.000 description 1
- 229910015643 LiMn 2 O 4 Inorganic materials 0.000 description 1
- 229910013290 LiNiO 2 Inorganic materials 0.000 description 1
- 229910013870 LiPF 6 Inorganic materials 0.000 description 1
- 239000002033 PVDF binder Substances 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 239000004962 Polyamide-imide Substances 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004642 Polyimide Substances 0.000 description 1
- 229910000676 Si alloy Inorganic materials 0.000 description 1
- 229910001128 Sn alloy Inorganic materials 0.000 description 1
- 239000004902 Softening Agent Substances 0.000 description 1
- 229920002125 Sokalan® Polymers 0.000 description 1
- 239000003522 acrylic cement Substances 0.000 description 1
- 230000003712 anti-aging effect Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 229920005549 butyl rubber Polymers 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 239000003575 carbonaceous material Substances 0.000 description 1
- 150000005678 chain carbonates Chemical class 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 239000003431 cross linking reagent Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 150000005676 cyclic carbonates Chemical class 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- IEJIGPNLZYLLBP-UHFFFAOYSA-N dimethyl carbonate Chemical compound COC(=O)OC IEJIGPNLZYLLBP-UHFFFAOYSA-N 0.000 description 1
- 229920006351 engineering plastic Polymers 0.000 description 1
- JBTWLSYIZRCDFO-UHFFFAOYSA-N ethyl methyl carbonate Chemical compound CCOC(=O)OC JBTWLSYIZRCDFO-UHFFFAOYSA-N 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000000499 gel Substances 0.000 description 1
- 229910021385 hard carbon Inorganic materials 0.000 description 1
- 229920003049 isoprene rubber Polymers 0.000 description 1
- 150000002596 lactones Chemical class 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- QLOAVXSYZAJECW-UHFFFAOYSA-N methane;molecular fluorine Chemical compound C.FF QLOAVXSYZAJECW-UHFFFAOYSA-N 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 229920003052 natural elastomer Polymers 0.000 description 1
- 229920001194 natural rubber Polymers 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 239000004584 polyacrylic acid Substances 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920002312 polyamide-imide Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 1
- RUOJZAUFBMNUDX-UHFFFAOYSA-N propylene carbonate Chemical compound CC1COC(=O)O1 RUOJZAUFBMNUDX-UHFFFAOYSA-N 0.000 description 1
- 150000003377 silicon compounds Chemical class 0.000 description 1
- 239000013464 silicone adhesive Substances 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 239000004945 silicone rubber Substances 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 229920003048 styrene butadiene rubber Polymers 0.000 description 1
- 150000003606 tin compounds Chemical class 0.000 description 1
- 239000002759 woven fabric 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
- H01M6/00—Primary cells; Manufacture thereof
- H01M6/14—Cells with non-aqueous electrolyte
- H01M6/16—Cells with non-aqueous electrolyte with organic electrolyte
-
- 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
- H01M10/05—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
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
-
- 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
-
- 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
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/102—Primary casings; Jackets or wrappings characterised by their shape or physical structure
- H01M50/107—Primary casings; Jackets or wrappings characterised by their shape or physical structure having curved cross-section, e.g. round or elliptic
-
- 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
- H01M50/533—Electrode connections inside a battery casing characterised by the shape of the leads or tabs
-
- 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
- H01M50/536—Electrode connections inside a battery casing characterised by the method of fixing the leads to the electrodes, e.g. by welding
-
- 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
- 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
- H01M50/572—Means for preventing undesired use or discharge
- H01M50/584—Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries
- H01M50/59—Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries characterised by the protection means
- H01M50/595—Tapes
-
- 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)
- Battery Electrode And Active Subsutance (AREA)
- Sealing Battery Cases Or Jackets (AREA)
- Primary Cells (AREA)
Abstract
Description
図1に示すように、正極4は、第1集電体シートである正極集電体シート40と、正極集電体シート40の両面に形成された正極活物質層41とを具備する。正極集電体シート40は矩形であり、本実施形態の場合、長辺方向(図1のY方向)が捲回軸方向(第1方向)に一致する。第1方向おける一端部(以下、第1端部)には、正極集電体シート40が露出している第1未塗工部40aが設けられている。第1端部は、電極群の第1端面側に配される。第1未塗工部40aは、第1端部に沿って帯状に設けられている。第1未塗工部40aには、短冊状の正極集電リード24の一端部が溶接により接続されている。
図3に示すように、負極2は、第2集電体シートである負極集電体シート20と、負極集電体シート20の両面に形成された負極活物質層21とを具備する。負極集電体シート20は、第2方向の長さが正極集電体シート40よりも大きく設定された矩形である。負極集電体シート20の第2方向(図3のX方向)における一端部(以下、第1端部)には、負極集電体シートが露出している第2未塗工部(A)20aが比較的幅広に設けられている。第2未塗工部(A)20aは、当該第1端部に沿って帯状に設けられる。第2未塗工部(A)20aには、短冊状の負極集電リード22の一端部が溶接により接続されている。
正極4と負極2との間に介在されるセパレータ6としては、絶縁性の微多孔薄膜、織布または不織布が用いられる。リチウムイオン電池のセパレータの材料としては、例えばポリプロピレン、ポリエチレンなどのポリオレフィンを用いることが好ましい。ポリオレフィンは耐久性に優れ、かつシャットダウン機能を有するためである。セパレータ6の厚さは、例えば10μm〜50μmであり、10μm〜30μmが好ましく、10μm以上、20μm未満がより好ましい。微多孔薄膜は、単層膜でもよく、多層膜でもよい。セパレータの空孔率は、30%〜70%が好ましく、35%〜60%が更に好ましい。
非水電解質は、液体、ゲルまたは固体のいずれの状態でもよい。リチウムイオン電池に用いる液体の非水電解質は、通常、リチウム塩と、リチウム塩を溶解させる非水溶媒とで構成される。非水溶媒としては、特に限定されないが、環状炭酸エステル、鎖状炭酸エステル、環状カルボン酸エステルなどが用いられる。環状炭酸エステルとしては、プロピレンカーボネート、エチレンカーボネートなどが挙げられる。鎖状炭酸エステルとしては、ジエチルカーボネート、エチルメチルカーボネート、ジメチルカーボネートなどが挙げられる。環状カルボン酸エステルとしては、γ−ブチ口ラクトン、γ−バレロラクトンなどが挙げられる。リチウム塩としては、例えばLiPF6、LiBF4などが用いられる。
4 正極(第1電極)
5 絶縁層
6 セパレータ
8 金属缶
10 負極端子
12 封口部材
14 正極端子
16 絶縁部材
18 中空部分
20 負極集電体シート(第2集電体シート)
20a 第2未塗工部(A)
20b 第2未塗工部(B)
21 負極活物質層
22 負極集電リード(第2集電リード)
24 正極集電リード(第1集電リード)
26 接続位置(溶接点)
28 中間部材
30 リング部材
40 正極集電体シート(第1集電体シート)
41 正極活物質層
40a 第1未塗工部
50 巻芯
54 固定用絶縁テープ
Claims (9)
- 発電要素と、
前記発電要素を収容する電池ケースと、を具備し、
前記電池ケースは、金属製の筒状部を有し、
前記発電要素は、第1電極と、前記第1電極とは極性が異なる第2電極と、前記第1電極と前記第2電極との間に介在するセパレータと、電解質と、を具備し、前記第1電極と前記第2電極とが前記セパレータを介して捲回されて第1端面およびその反対側の第2端面を有する電極群を形成しており、
前記第1電極は、第1集電体シートと、前記第1集電体シートの表面に形成された第1活物質層と、を具備し、前記第1集電体シートに、第1集電リードが電気的に接続されており、
前記第2電極は、第2集電体シートと、前記第2集電体シートの表面に形成された第2活物質層と、を具備し、前記第2集電体シートに、第2集電リードが電気的に接続されており、
前記第1集電体シートは、前記電極群の前記第1端面に配される端部に、両方の表面に前記第1活物質層を有さない第1未塗工部を有し、
前記第1未塗工部に、前記第1集電リードが接続されており、
前記第1未塗工部のエッジ面が、少なくとも部分的に絶縁層で被覆されており、
前記第1端面において、前記セパレータよりも前記絶縁層が突出している、捲回型電池。 - 前記第1未塗工部の前記エッジ面のうち、少なくとも前記電極群の一周分の50%以上が、前記絶縁層で被覆されている、請求項1に記載の捲回型電池。
- 前記第1集電リードおよび前記第2集電リードの少なくとも一方は、前記第1端面から突出して延在している、請求項1または2に記載の捲回型電池。
- 前記第1集電リードまたは前記第2集電リードは、前記筒状部の内面の前記電極群と対向しない接続位置に溶接されている、請求項1〜3のいずれか1項に記載の捲回型電池。
- 前記絶縁層と、前記接続位置との、前記捲回軸方向における最短距離が、0.3mm以上、3mm以下である、請求項4に記載の捲回型電池。
- 前記絶縁層が、一対の絶縁テープを具備し、
前記一対の絶縁テープが、前記第1未塗工部を、両側から挟み込むことで、前記第1未塗工部の前記エッジ面が前記絶縁層で覆われている、請求項1〜5のいずれか1項に記載の捲回型電池。 - 前記絶縁層の厚さが、15μm以上、50μm以下である、請求項6に記載の捲回型電池。
- 前記筒状部の外径が、10mm以下である、請求項1〜7のいずれか1項に記載の捲回型電池。
- 前記電池ケースは、前記筒状部を有する有底の金属缶と、前記金属缶の開口を塞ぐ封口部材と、を具備し、前記第1端面は、前記開口側に配置されている、請求項1〜8のいずれか1項に記載の捲回型電池。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2015138747 | 2015-07-10 | ||
JP2015138747 | 2015-07-10 | ||
PCT/JP2016/002881 WO2017010042A1 (ja) | 2015-07-10 | 2016-06-15 | 捲回型電池 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPWO2017010042A1 true JPWO2017010042A1 (ja) | 2018-04-19 |
JP6775170B2 JP6775170B2 (ja) | 2020-10-28 |
Family
ID=57756896
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2017528276A Active JP6775170B2 (ja) | 2015-07-10 | 2016-06-15 | 捲回型電池 |
Country Status (4)
Country | Link |
---|---|
US (1) | US10566598B2 (ja) |
JP (1) | JP6775170B2 (ja) |
CN (1) | CN107615558B (ja) |
WO (1) | WO2017010042A1 (ja) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3611781A4 (en) | 2017-04-14 | 2020-02-19 | LG Chem, Ltd. | SECONDARY BATTERY AND METHOD FOR MANUFACTURING SECONDARY BATTERY |
JP2019121500A (ja) * | 2017-12-28 | 2019-07-22 | パナソニックIpマネジメント株式会社 | 円筒形二次電池 |
CN113299920B (zh) * | 2021-05-24 | 2022-05-03 | 合肥国轩高科动力能源有限公司 | 一种锂电池卷芯 |
WO2023140142A1 (ja) * | 2022-01-21 | 2023-07-27 | パナソニックエナジー株式会社 | 円筒形二次電池 |
WO2023145679A1 (ja) * | 2022-01-28 | 2023-08-03 | パナソニックエナジー株式会社 | 非水電解質二次電池 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010073653A (ja) * | 2008-09-22 | 2010-04-02 | Panasonic Corp | 電池 |
JP2011216403A (ja) * | 2010-04-01 | 2011-10-27 | Hitachi Vehicle Energy Ltd | 角形リチウムイオン二次電池 |
JP2012204179A (ja) * | 2011-03-25 | 2012-10-22 | Toyota Motor Corp | 非水電解液二次電池 |
JP2015060787A (ja) * | 2013-09-20 | 2015-03-30 | 三菱自動車工業株式会社 | 二次電池 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005019312A (ja) * | 2003-06-27 | 2005-01-20 | Matsushita Electric Ind Co Ltd | 非水電解質二次電池用電極および非水電解質二次電池 |
JP5241287B2 (ja) * | 2008-03-31 | 2013-07-17 | 三洋電機株式会社 | 二次電池 |
KR101009517B1 (ko) * | 2008-06-23 | 2011-01-18 | 삼성에스디아이 주식회사 | 전극 조립체와 이를 이용한 리튬 이차 전지 |
CN101807725A (zh) * | 2009-02-18 | 2010-08-18 | 东莞新能源科技有限公司 | 锂离子电池 |
KR20130125819A (ko) | 2011-02-16 | 2013-11-19 | 파나소닉 주식회사 | 전지 및 전지의 제조 방법 |
US11476494B2 (en) * | 2013-08-16 | 2022-10-18 | Zenlabs Energy, Inc. | Lithium ion batteries with high capacity anode active material and good cycling for consumer electronics |
-
2016
- 2016-06-15 US US15/573,571 patent/US10566598B2/en active Active
- 2016-06-15 WO PCT/JP2016/002881 patent/WO2017010042A1/ja active Application Filing
- 2016-06-15 CN CN201680033795.3A patent/CN107615558B/zh active Active
- 2016-06-15 JP JP2017528276A patent/JP6775170B2/ja active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010073653A (ja) * | 2008-09-22 | 2010-04-02 | Panasonic Corp | 電池 |
JP2011216403A (ja) * | 2010-04-01 | 2011-10-27 | Hitachi Vehicle Energy Ltd | 角形リチウムイオン二次電池 |
JP2012204179A (ja) * | 2011-03-25 | 2012-10-22 | Toyota Motor Corp | 非水電解液二次電池 |
JP2015060787A (ja) * | 2013-09-20 | 2015-03-30 | 三菱自動車工業株式会社 | 二次電池 |
Also Published As
Publication number | Publication date |
---|---|
JP6775170B2 (ja) | 2020-10-28 |
CN107615558B (zh) | 2020-07-24 |
WO2017010042A1 (ja) | 2017-01-19 |
US10566598B2 (en) | 2020-02-18 |
US20180145304A1 (en) | 2018-05-24 |
CN107615558A (zh) | 2018-01-19 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP6735445B2 (ja) | 捲回型電池 | |
JP5214543B2 (ja) | 二次電池 | |
WO2017010046A1 (ja) | 捲回型電池 | |
JP6208687B2 (ja) | 円筒形二次電池及びその製造方法 | |
JP6775170B2 (ja) | 捲回型電池 | |
JP6948628B2 (ja) | 捲回型電池 | |
CN107851768B (zh) | 电化学器件的制造方法 | |
KR100515833B1 (ko) | 젤리-롤형의 전극조립체와 이를 채용한 이차전지 | |
JPWO2018061381A1 (ja) | 非水電解質二次電池 | |
KR20010098695A (ko) | 밀폐형 전지 및 그 제조방법 | |
JP6045286B2 (ja) | 円筒形蓄電素子 | |
CN109891640B (zh) | 非水电解质二次电池用电极以及非水电解质二次电池 | |
WO2021106728A1 (ja) | 密閉電池 | |
JP2017139085A (ja) | 密閉型電池 | |
US11081752B2 (en) | Square secondary battery and method of manufacturing same | |
JP2013243070A (ja) | 巻回電極体を備えた電池 | |
JP2017112055A (ja) | 密閉型電池 | |
JP2006147185A (ja) | 捲回電極およびその製造方法、並びにそれを用いた電池 | |
JP2018200822A (ja) | ラミネート形電池 | |
JP7022909B2 (ja) | 捲回型電池 | |
JP2018139187A (ja) | 捲回型電池 | |
JP2002216853A (ja) | 非水電解質二次電池およびその製造法 | |
JP2022127064A (ja) | 非水電解質二次電池 | |
JP2024008475A (ja) | 電池 | |
JP2018056096A (ja) | 二次電池及び二次電池の製造方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
RD02 | Notification of acceptance of power of attorney |
Free format text: JAPANESE INTERMEDIATE CODE: A7422 Effective date: 20180709 |
|
A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20190218 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20200218 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20200416 |
|
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: 20200915 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20200917 |
|
R151 | Written notification of patent or utility model registration |
Ref document number: 6775170 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R151 |