JP2016021421A - 電気化学セルの可撓性電極 - Google Patents
電気化学セルの可撓性電極 Download PDFInfo
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- 239000007772 electrode material Substances 0.000 claims abstract description 45
- 239000011149 active material Substances 0.000 claims abstract description 6
- 238000000034 method Methods 0.000 claims abstract description 6
- 239000004745 nonwoven fabric Substances 0.000 claims abstract description 5
- 239000000758 substrate Substances 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 11
- 239000007788 liquid Substances 0.000 claims description 10
- 238000005452 bending Methods 0.000 claims description 9
- 239000011230 binding agent Substances 0.000 claims description 9
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 7
- 239000000945 filler Substances 0.000 claims description 6
- XHCLAFWTIXFWPH-UHFFFAOYSA-N [O-2].[O-2].[O-2].[O-2].[O-2].[V+5].[V+5] Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[V+5].[V+5] XHCLAFWTIXFWPH-UHFFFAOYSA-N 0.000 claims description 4
- 229910052799 carbon Inorganic materials 0.000 claims description 4
- 229910052751 metal Inorganic materials 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 229910001935 vanadium oxide Inorganic materials 0.000 claims description 4
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 2
- 239000000853 adhesive Substances 0.000 claims description 2
- 230000001070 adhesive effect Effects 0.000 claims description 2
- 239000002041 carbon nanotube Substances 0.000 claims description 2
- 229910021393 carbon nanotube Inorganic materials 0.000 claims description 2
- 229910000476 molybdenum oxide Inorganic materials 0.000 claims description 2
- PQQKPALAQIIWST-UHFFFAOYSA-N oxomolybdenum Chemical compound [Mo]=O PQQKPALAQIIWST-UHFFFAOYSA-N 0.000 claims description 2
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 claims description 2
- 229910000314 transition metal oxide Inorganic materials 0.000 claims description 2
- 239000011263 electroactive material Substances 0.000 description 6
- 239000002482 conductive additive Substances 0.000 description 4
- 239000006185 dispersion Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 3
- 239000003792 electrolyte Substances 0.000 description 3
- 229910001416 lithium ion Inorganic materials 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000011148 porous material Substances 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 2
- 150000001768 cations Chemical class 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- GNTDGMZSJNCJKK-UHFFFAOYSA-N divanadium pentaoxide Chemical compound O=[V](=O)O[V](=O)=O GNTDGMZSJNCJKK-UHFFFAOYSA-N 0.000 description 2
- 239000002657 fibrous material Substances 0.000 description 2
- 239000010408 film Substances 0.000 description 2
- 229910052744 lithium Inorganic materials 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- -1 polytetrafluoroethylene Polymers 0.000 description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 description 2
- KMTRUDSVKNLOMY-UHFFFAOYSA-N Ethylene carbonate Chemical compound O=C1OCCO1 KMTRUDSVKNLOMY-UHFFFAOYSA-N 0.000 description 1
- 229910012851 LiCoO 2 Inorganic materials 0.000 description 1
- 229910010707 LiFePO 4 Inorganic materials 0.000 description 1
- 229920001410 Microfiber Polymers 0.000 description 1
- 239000002033 PVDF binder Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- JJVGROTXXZVGGN-UHFFFAOYSA-H [Li+].[Li+].[Li+].[Li+].[Li+].[Li+].[F-].[F-].[F-].[F-].[F-].[F-] Chemical compound [Li+].[Li+].[Li+].[Li+].[Li+].[Li+].[F-].[F-].[F-].[F-].[F-].[F-] JJVGROTXXZVGGN-UHFFFAOYSA-H 0.000 description 1
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- 230000001788 irregular Effects 0.000 description 1
- 238000006138 lithiation reaction Methods 0.000 description 1
- 239000003658 microfiber Substances 0.000 description 1
- 239000002105 nanoparticle Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920005596 polymer binder Polymers 0.000 description 1
- 239000002491 polymer binding agent Substances 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 1
- 239000012254 powdered material Substances 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
【解決手段】本発明は、少なくとも1つの繊維状活性電極材料を含む、電気化学セルの電極に関し、活性材料の繊維(34)は、不織布又はフェルト状の自己支持構造(32)を形成するように配置される。更に本発明は、各電気化学セル及びこのような電極を作製する方法に関する。
【選択図】 図1
Description
12 コネクタタブ
14 コネクタタブ
16 集電体
18 集電体
20 負極
22 正極
24 セパレータ
26 ハウジング
28 スリーブ
30 スリーブ
32 不織布構造
34 繊維
Claims (23)
- 少なくとも1つの繊維状活性電極材料を含む、電気化学セルの電極であって、
前記繊維状活性電極材料は遷移金属酸化物ベースの微細繊維からなり、その繊維(34)を不織布又はフェルト状に形成した自己支持構造(32)をいずれのバインダー材料も付加することなく形成したことを特徴とする、電極。 - 前記活性電極材料の前記繊維(34)は、2〜200μmの平均繊維長を有する、請求項1に記載の電極。
- 前記活性電極材料の前記繊維(34)は、5〜100μmの平均繊維長を有する、請求項1に記載の電極。
- 前記活性電極材料の前記繊維(34)は、10〜50μmの平均繊維長を有する、請求項1に記載の電極。
- 前記活性電極材料の前記繊維は、10〜400nmの平均繊維直径を有する、請求項1〜4のいずれか1項に記載の電極。
- 前記活性電極材料の前記繊維は、50〜250nmの平均繊維直径を有する、請求項1〜5のいずれか1項に記載の電極。
- 前記活性電極材料の前記繊維は、100〜200nmの平均繊維直径を有する、請求項1〜6のいずれか1項に記載の電極。
- 前記繊維長と前記繊維直径との平均縦横比は、20〜1000である、請求項1〜7のいずれか1項に記載の電極。
- 前記繊維長と前記繊維直径との平均縦横比は、50〜200である、請求項1〜8のいずれか1項に記載の電極。
- 前記繊維長と前記繊維直径との平均縦横比は、100〜150である、請求項1〜9のいずれか1項に記載の電極。
- 前記電極の構成要素は、少なくとも50重量%の前記繊維状活性電極材料を含み、残りは充填材料である、請求項1〜10のいずれか1項に記載の電極。
- 前記充填材料は炭素ナノチューブを含む、請求項11に記載の電極。
- 前記電極の構成要素は、100重量%の前記繊維状活性材料を含む、請求項1〜12のいずれか1項に記載の電極。
- 厚さ1〜150μm、又は10〜80μm、又は20〜60μmのフィルム状又はシート状構造を備える、請求項1〜13のいずれか1項に記載の電極。
- 前記電極は実質的にバインダを含まない、請求項1〜14のいずれか1項に記載の電極。
- 前記繊維状活性材料は酸化バナジウム及び/又は酸化モリブデンを含む、請求項1〜15のいずれか1項に記載の電極。
- 前記電極は負極であり、
前記繊維状活性電極材料は、炭素ベース、金属ベース及び/又は酸化チタンベースの繊維又はチューブである、請求項1〜15のいずれか1項に記載の電極。 - 20mm、15mm、又は10mm以下の曲げ半径まで、実質的にねじれることなく屈曲させることができる、請求項1〜17のいずれか1項に記載の電極。
- −負極集電体(16)と接触する負極(20);
−正極集電体(18)と接触する正極(22);及び
−前記負極(20)と前記正極(22)との間に配置されるセパレータ(24)であって、前記負極(20)は前記セパレータ(24)と前記負極集電体(16)との間に配置され、前記正極(22)は前記セパレータ(24)と前記正極集電体(18)との間に配置される、セパレータ(24)
を備え、
−前記負極(20)及び前記正極(22)の少なくとも一方は、請求項1〜18のいずれか1項に記載の電極を含む、電気化学セル。 - 一次バッテリ又は二次バッテリとして設計される、請求項19に記載の電気化学セル。
- −液体中に繊維状活性電極材料を分散させるステップ;
−前記繊維状活性電極材料の少なくとも1つの層を形成するステップ;及び
−形成した前記層を前記液体から分離するステップ
を含む、請求項1〜18のいずれか1項に記載の電極を製造する方法。 - 前記層は多孔性フィルタ基材上に形成される、請求項21に記載の方法。
- 前記層は非接着性支持基材上に形成され、
前記液体は蒸発する、請求項21に記載の方法。
Applications Claiming Priority (2)
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EP12194882.2A EP2738839B1 (en) | 2012-11-29 | 2012-11-29 | Flexible electrode of an electrochemical cell |
EP12194882.2 | 2012-11-29 |
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JP6155313B2 JP6155313B2 (ja) | 2017-06-28 |
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JP2015216437A Active JP6155313B2 (ja) | 2012-11-29 | 2015-11-04 | 電気化学セルの可撓性電極 |
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US (1) | US20140147743A1 (ja) |
EP (1) | EP2738839B1 (ja) |
JP (2) | JP2014107276A (ja) |
KR (1) | KR101605589B1 (ja) |
CN (1) | CN103855375B (ja) |
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JP2015222912A (ja) | 2014-05-23 | 2015-12-10 | 三菱電機株式会社 | リニアライザ |
WO2018174864A1 (en) * | 2017-03-22 | 2018-09-27 | GM Global Technology Operations LLC | Self-heating battery |
CN107611341B (zh) * | 2017-08-31 | 2020-06-09 | 柔电(武汉)科技有限公司 | 一种具有涂覆层的柔性电极片及其制备方法 |
DE102018131775A1 (de) * | 2018-12-11 | 2020-06-18 | Osram Opto Semiconductors Gmbh | Elektronisches Bauelement und Verfahren zur Herstellung eines elektronischen Bauelements |
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2012
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2013
- 2013-11-12 TW TW102141040A patent/TWI623129B/zh not_active IP Right Cessation
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US20080274403A1 (en) * | 2007-05-04 | 2008-11-06 | Il-Doo Kim | Anode for secondary battery having negative active material with nano-fiber network structure and secondary battery using the same, and fabrication method of negative active material for secondary battery |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2020061282A (ja) * | 2018-10-10 | 2020-04-16 | 三洋化成工業株式会社 | リチウムイオン電池及びその製造方法 |
JP7181752B2 (ja) | 2018-10-10 | 2022-12-01 | 三洋化成工業株式会社 | リチウムイオン電池及びその製造方法 |
Also Published As
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CN103855375B (zh) | 2017-05-31 |
JP2014107276A (ja) | 2014-06-09 |
CN103855375A (zh) | 2014-06-11 |
JP6155313B2 (ja) | 2017-06-28 |
EP2738839B1 (en) | 2015-08-12 |
TW201440295A (zh) | 2014-10-16 |
TWI623129B (zh) | 2018-05-01 |
KR20140070446A (ko) | 2014-06-10 |
EP2738839A1 (en) | 2014-06-04 |
HK1199149A1 (en) | 2015-06-19 |
KR101605589B1 (ko) | 2016-03-22 |
US20140147743A1 (en) | 2014-05-29 |
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