JP6928918B2 - 二次電池 - Google Patents
二次電池 Download PDFInfo
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- JP6928918B2 JP6928918B2 JP2018566030A JP2018566030A JP6928918B2 JP 6928918 B2 JP6928918 B2 JP 6928918B2 JP 2018566030 A JP2018566030 A JP 2018566030A JP 2018566030 A JP2018566030 A JP 2018566030A JP 6928918 B2 JP6928918 B2 JP 6928918B2
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- 238000003825 pressing Methods 0.000 claims description 82
- 230000002093 peripheral effect Effects 0.000 claims description 53
- 239000010410 layer Substances 0.000 claims description 31
- 239000008151 electrolyte solution Substances 0.000 claims description 30
- 229910052751 metal Inorganic materials 0.000 claims description 14
- 239000002184 metal Substances 0.000 claims description 14
- 239000007773 negative electrode material Substances 0.000 claims description 13
- 239000007774 positive electrode material Substances 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 9
- 239000004020 conductor Substances 0.000 claims description 4
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- 238000007789 sealing Methods 0.000 description 13
- 230000000052 comparative effect Effects 0.000 description 11
- 239000010408 film Substances 0.000 description 7
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 5
- 239000004820 Pressure-sensitive adhesive Substances 0.000 description 5
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- 230000008859 change Effects 0.000 description 5
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- 238000000576 coating method Methods 0.000 description 5
- 229910052744 lithium Inorganic materials 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- KMTRUDSVKNLOMY-UHFFFAOYSA-N Ethylene carbonate Chemical compound O=C1OCCO1 KMTRUDSVKNLOMY-UHFFFAOYSA-N 0.000 description 4
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 description 4
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 4
- 230000001070 adhesive effect Effects 0.000 description 4
- 239000003125 aqueous solvent Substances 0.000 description 4
- -1 dimethylformamide Chemical class 0.000 description 4
- JBTWLSYIZRCDFO-UHFFFAOYSA-N ethyl methyl carbonate Chemical compound CCOC(=O)OC JBTWLSYIZRCDFO-UHFFFAOYSA-N 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 239000002002 slurry Substances 0.000 description 4
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 description 3
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 3
- 239000002033 PVDF binder Substances 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- 238000011156 evaluation Methods 0.000 description 3
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- 238000005259 measurement Methods 0.000 description 3
- 229910052759 nickel Inorganic materials 0.000 description 3
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
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- 239000011347 resin Substances 0.000 description 3
- 229910000314 transition metal oxide Inorganic materials 0.000 description 3
- SBLRHMKNNHXPHG-UHFFFAOYSA-N 4-fluoro-1,3-dioxolan-2-one Chemical compound FC1COC(=O)O1 SBLRHMKNNHXPHG-UHFFFAOYSA-N 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- OIFBSDVPJOWBCH-UHFFFAOYSA-N Diethyl carbonate Chemical compound CCOC(=O)OCC OIFBSDVPJOWBCH-UHFFFAOYSA-N 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- 239000004793 Polystyrene Substances 0.000 description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 229910052748 manganese Inorganic materials 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000012046 mixed solvent Substances 0.000 description 2
- 229920002223 polystyrene Polymers 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- WNXJIVFYUVYPPR-UHFFFAOYSA-N 1,3-dioxolane Chemical compound C1COCO1 WNXJIVFYUVYPPR-UHFFFAOYSA-N 0.000 description 1
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- 229920002134 Carboxymethyl cellulose Polymers 0.000 description 1
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 description 1
- 229910015746 LiNi0.88Co0.09Al0.03O2 Inorganic materials 0.000 description 1
- 229910013870 LiPF 6 Inorganic materials 0.000 description 1
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 239000006230 acetylene black Substances 0.000 description 1
- 239000003522 acrylic cement Substances 0.000 description 1
- 239000011149 active material Substances 0.000 description 1
- 229920006223 adhesive resin Polymers 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- 150000001408 amides Chemical class 0.000 description 1
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- 230000004323 axial length Effects 0.000 description 1
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- 235000010948 carboxy methyl cellulose Nutrition 0.000 description 1
- 239000008112 carboxymethyl-cellulose Substances 0.000 description 1
- 239000011231 conductive filler Substances 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 239000011889 copper foil Substances 0.000 description 1
- IEJIGPNLZYLLBP-UHFFFAOYSA-N dimethyl carbonate Chemical compound COC(=O)OC IEJIGPNLZYLLBP-UHFFFAOYSA-N 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 150000002170 ethers Chemical class 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 125000005843 halogen group Chemical group 0.000 description 1
- 150000002367 halogens Chemical group 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 239000012943 hotmelt Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000010220 ion permeability Effects 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- MHAIQPNJLRLFLO-UHFFFAOYSA-N methyl 2-fluoropropanoate Chemical compound COC(=O)C(C)F MHAIQPNJLRLFLO-UHFFFAOYSA-N 0.000 description 1
- 229910021382 natural graphite Inorganic materials 0.000 description 1
- 150000002825 nitriles Chemical class 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000005060 rubber Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 229920003048 styrene butadiene rubber Polymers 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- 229910052723 transition metal Inorganic materials 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 239000004711 α-olefin Substances 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
- 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
- H01M10/0468—Compression means for stacks of electrodes and 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
- H01M10/04—Construction or manufacture in general
- H01M10/0422—Cells or battery with cylindrical casing
-
- 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
- H01M10/0481—Compression means other than compression means for stacks of electrodes and 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
- H01M10/056—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes
- H01M10/0564—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes the electrolyte being constituted of organic materials only
- H01M10/0566—Liquid materials
- H01M10/0569—Liquid materials characterised by the solvents
-
- 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
- H01M50/116—Primary casings; Jackets or wrappings characterised by the material
- H01M50/117—Inorganic material
- H01M50/119—Metals
-
- 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
-
- 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
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Inorganic Chemistry (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Physics & Mathematics (AREA)
- Secondary Cells (AREA)
- Sealing Battery Cases Or Jackets (AREA)
- Connection Of Batteries Or Terminals (AREA)
Description
[正極の作製]
LiNi0.88Co0.09Al0.03O2で表されるリチウム含有遷移金属酸化物を100重量部と、アセチレンブラックを1重量部と、ポリフッ化ビニリデンを1重量部とを混合し、さらにN−メチル−2−ピロリドン(NMP)を適量加えて、正極合材スラリーを調製した。次に、当該正極合材スラリーをアルミニウム箔からなる正極集電体の両面に塗布し、塗膜を乾燥させた。塗膜が形成された集電体をローラーを用いて圧縮した後、所定の電極サイズに切断し、正極集電体の両面に正極活物質層が形成された正極を作製した。正極のサイズは、幅62mm、長さ903mmとした。なお、正極の長手方向中央部に集電体表面を露出させた部分を設け、当該部分に正極リードを超音波溶接した。
黒鉛粉末を100重量部と、スチレン−ブタジエンゴム(SBR)を1重量部と、カルボキシメチルセルロースを1重量部とを混合し、さらに水を適量加えて、負極合材スラリーを調製した。次に、当該負極合材スラリーを銅箔からなる負極集電体の両面に塗布し、塗膜を乾燥させた。塗膜が形成された集電体をローラーを用いて圧縮した後、所定の電極サイズに切断し、負極集電体の両面に負極活物質層が形成された負極を作製した。負極のサイズは、幅64mm、長さ982mmとした。負極の長手方向一端から長さ23mmの範囲に、集電体表面が露出した露出部を設けた。
エチレンカーボネート(EC)と、エチルメチルカーボネート(EMC)とを、3:7の体積比で混合した。当該混合溶媒に、LiPF6を1mol/Lの濃度で溶解させて非水電解液を調製した。
上記正極と上記負極を、ポリエチレン製のセパレータを介して渦巻状に巻回することにより、巻回型の電極体を作製した。このとき、正極活物質層がセパレータを介して負極活物質層と対向するように、また負極の露出部が電極体の外周面を構成するように、各電極及びセパレータを巻回した。電極体の外周面は、その全域が負極集電体の表面が露出した露出部であった。なお、電極体の軸方向両端部に、テープを貼着して電極体の巻回構造を維持した。
長さ872mmの正極と長さ951mmの負極を用いたこと、及び負極の電極体の外周面を構成する部分の一部に集電体の表面が露出した露出部を設け、この露出部にケース本体の底部内面に溶接される負極リードを溶接したこと以外は、実施例1と同様にして円筒形電池を作製した。比較例1における該露出部は、負極の長手方向一端から長さ23mmの範囲に設けた。負極リードの厚みは、100μmであった。負極リードの厚みが60μmの場合、厚みが100μmの負極リードよりも電気抵抗が高く、所定の電流にて充放電することができないおそれがある。
押圧部材を用いなかったこと以外は、実施例1と同様にして円筒形電池を作製した。
25℃の温度環境下において、各電池を0.3Itの定電流で電池電圧が3.7Vとなるまで充電し、その後、定電圧で充電した。次に、低抵抗計(測定周波数1kHzに設定した交流4端子法)を用いて、各電池の端子間抵抗を測定し、このときの抵抗値を各電池の内部抵抗とした。抵抗値の測定は各二次電池について2回ずつ行い、各二次電池の平均抵抗値の比率(抵抗比)、及び最大抵抗値と最小抵抗値との差の比率(レンジ比)を求めた。表1に示す抵抗比及びレンジ比は、実施例1の電池の平均抵抗値、最大抵抗値と最小抵抗値との差をそれぞれ100%としたときの比率である。
25℃の温度条件下において、0.2Itの定電流で電池電圧が4.2Vになるまで充電を行った。1分間休止した後、0.2Itの定電流で電池電圧が2.5Vになるまで放電を行い、このときの放電容量を求めた。表1に示す容量比は、実施例1の電池の放電容量を100%としたときの比率である。
11 正極
12 負極
13 セパレータ
14 電極体
14a 中心軸
14b 外周面
15 外装体
16 ケース本体
16a 中心軸
16b 内周面
17 封口体
18,19 絶縁板
20 正極リード
21 張り出し部
22 フィルタ
23 下弁体
24 絶縁部材
25 上弁体
26 キャップ
27 ガスケット
30 正極集電体
31 正極活物質層
35 負極集電体
36 負極活物質層
37 露出部
40 押圧部材
Claims (6)
- 正極集電体及び当該集電体上に形成された正極活物質層を含む正極と、負極集電体及び当該集電体上に形成された負極活物質層を含む負極と、セパレータとを有し、前記正極と前記負極が前記セパレータを介して渦巻状に巻回された電極体と、
電解液と、
前記電極体及び前記電解液を収容する金属製の外装体と、
前記電極体と前記外装体との間又は前記電極体内に設けられた押圧部材と、
を備え、
前記電極体の外周面には、前記正極集電体又は前記負極集電体の表面が露出した露出部が設けられ、
前記押圧部材は、
前記電解液を吸液して膨張し、前記電極体の前記露出部を前記外装体の内面に押し付けており、
前記電解液を吸液して膨張するテープ基材と、前記テープ基材の少なくとも一方の面に形成された粘着剤層とで構成されたテープであって、導電材を含み、前記電極体の前記露出部及び前記外装体の内面に当接している、二次電池。 - 前記電極体の前記外周面には、前記負極集電体の表面が露出しており、
前記押圧部材は、前記負極集電体の表面を前記外装体の内面に押し付けている、請求項1に記載の二次電池。 - 前記電極体は、前記押圧部材と径方向反対側に位置する前記露出部が前記外装体の内面に押し付けられている、請求項1又は2に記載の二次電池。
- 前記外装体は、有底円筒形状を有し、
前記電極体は、その中心軸が前記外装体の中心軸からずれた状態で前記外装体内に収容されている、請求項3に記載の二次電池。 - 前記押圧部材は、前記電極体内に設けられ、
前記電極体の前記露出部のうち、前記押圧部材と前記外装体の内面との間に位置する部分が当該内面に押し付けられている、請求項1〜4のいずれか1項に記載の二次電池。 - 前記電極体の径方向の断面において、前記露出部及び前記押圧部材、又は前記露出部の表面上の2点において、前記外装体の内面と当接する、請求項1〜5のいずれか1項に記載の二次電池。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2017015654 | 2017-01-31 | ||
JP2017015654 | 2017-01-31 | ||
PCT/JP2018/001109 WO2018142928A1 (ja) | 2017-01-31 | 2018-01-17 | 二次電池 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPWO2018142928A1 JPWO2018142928A1 (ja) | 2019-11-14 |
JP6928918B2 true JP6928918B2 (ja) | 2021-09-01 |
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JP2018566030A Active JP6928918B2 (ja) | 2017-01-31 | 2018-01-17 | 二次電池 |
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US (1) | US20200044276A1 (ja) |
JP (1) | JP6928918B2 (ja) |
CN (1) | CN109906526A (ja) |
WO (1) | WO2018142928A1 (ja) |
Cited By (2)
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WO2023096374A1 (ko) * | 2021-11-24 | 2023-06-01 | 주식회사 엘지에너지솔루션 | 젤리롤 전극 조립체 및 이를 포함하는 이차전지 |
WO2023096376A1 (ko) * | 2021-11-24 | 2023-06-01 | 주식회사 엘지에너지솔루션 | 젤리롤 전극 조립체 및 이를 포함하는 이차전지 |
Families Citing this family (5)
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EP3923394A4 (en) * | 2019-02-08 | 2022-04-06 | SANYO Electric Co., Ltd. | CYLINDRICAL BATTERY |
KR20220008684A (ko) * | 2020-07-14 | 2022-01-21 | 주식회사 엘지에너지솔루션 | 버튼형 이차전지 |
KR20220061552A (ko) * | 2020-11-06 | 2022-05-13 | 주식회사 엘지에너지솔루션 | 이차전지 및 이를 포함하는 디바이스 |
WO2024071934A1 (ko) * | 2022-09-26 | 2024-04-04 | 주식회사 엘지에너지솔루션 | 젤리-롤형 전극조립체, 젤리-롤형 전극조립체 제조방법 및 이를 포함하는 이차전지 |
WO2024100502A2 (en) * | 2022-11-11 | 2024-05-16 | Medtronic, Inc. | Rechargeable battery with high compression electrode coil and methods for making the same |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3263198B2 (ja) * | 1993-09-02 | 2002-03-04 | 松下電器産業株式会社 | 非水電解質二次電池およびその製造法 |
JPH10172523A (ja) * | 1996-10-07 | 1998-06-26 | Haibaru:Kk | 非水系円筒形電池 |
KR100624934B1 (ko) * | 2004-10-28 | 2006-09-15 | 삼성에스디아이 주식회사 | 원통형 리튬 이차 전지 |
KR100719725B1 (ko) * | 2005-12-29 | 2007-05-17 | 삼성에스디아이 주식회사 | 리튬 이차전지용 전극조립체 및 이를 이용한 리튬 이차전지 |
CN1819323A (zh) * | 2006-01-19 | 2006-08-16 | 东莞新能源电子科技有限公司 | 一种凝胶聚合物在圆柱形锂电池中的应用 |
JP5152098B2 (ja) * | 2009-05-15 | 2013-02-27 | トヨタ自動車株式会社 | 密閉型二次電池 |
CN103579687B (zh) * | 2012-07-31 | 2019-04-12 | 株式会社杰士汤浅国际 | 电池 |
JP2014078389A (ja) * | 2012-10-10 | 2014-05-01 | Toyota Industries Corp | 蓄電装置 |
CN111668473A (zh) * | 2015-03-13 | 2020-09-15 | 三洋电机株式会社 | 非水电解质二次电池 |
-
2018
- 2018-01-17 WO PCT/JP2018/001109 patent/WO2018142928A1/ja active Application Filing
- 2018-01-17 CN CN201880004213.8A patent/CN109906526A/zh active Pending
- 2018-01-17 US US16/481,280 patent/US20200044276A1/en not_active Abandoned
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Cited By (2)
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WO2023096374A1 (ko) * | 2021-11-24 | 2023-06-01 | 주식회사 엘지에너지솔루션 | 젤리롤 전극 조립체 및 이를 포함하는 이차전지 |
WO2023096376A1 (ko) * | 2021-11-24 | 2023-06-01 | 주식회사 엘지에너지솔루션 | 젤리롤 전극 조립체 및 이를 포함하는 이차전지 |
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WO2018142928A1 (ja) | 2018-08-09 |
CN109906526A (zh) | 2019-06-18 |
JPWO2018142928A1 (ja) | 2019-11-14 |
US20200044276A1 (en) | 2020-02-06 |
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