JP5100962B2 - リチウムアノード製造方法及びその製造方法により得られるリチウムアノード - Google Patents
リチウムアノード製造方法及びその製造方法により得られるリチウムアノード Download PDFInfo
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- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
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- 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
- H01M4/1395—Processes of manufacture of electrodes based on metals, Si or alloys
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- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/38—Selection of substances as active materials, active masses, active liquids of elements or alloys
- H01M4/40—Alloys based on alkali metals
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- H—ELECTRICITY
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- H—ELECTRICITY
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- 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
- H01M2004/027—Negative electrodes
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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
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/38—Selection of substances as active materials, active masses, active liquids of elements or alloys
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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
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/38—Selection of substances as active materials, active masses, active liquids of elements or alloys
- H01M4/40—Alloys based on alkali metals
- H01M4/405—Alloys based on lithium
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- 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
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- 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
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Description
(1)アノード/カソード/セパレータよりなる電極組立体を電池ケースに収納した後に本発明に係る前記電解液を加えてリチウム電池を製造する方法、
(2)マトリックス形成用高分子樹脂及び本発明に係る電解液を混合した高分子電解質を電極やセパレータに塗布した後、これを用いて電極組立体を形成し、次いで前記電極組立体を電池ケースに収納してリチウム電池を製造する方法、または
(3)マトリックス形成用樹脂としてフリーポリマーや重合性モノマーを使用する場合には、前記樹脂及び本発明に係る電解液を含む高分子電解質形成用組成物を電極やセパレータに塗布した後、これを用いて電極組立体を形成し、次いで前記電極組立体を電池ケースに収納した後に電池内で重合してリチウム電池を製造する方法、
などが挙げられる。
アセトニトリル溶液に67.5重量%の単体硫黄、ケッチェンブラック(ketjenblack)11.4重量%、ポリ(エチレンオキシド)21.1重量%を混合した後、均一な状態になるまで混合した。得られたスラリをカーボン塗布されたアルミニウム集電体上にキャスティングした後にアセトニトリルを乾燥させて圧延した。この時、単位面積当たりエネルギー密度は1.1mAh/cm2にしてカソードを製造した。
電解液に使われる有機溶媒は、メトキシエタン/ジグライム/ジオキソラン=4/4/2(体積%)であるものを使用し、リチウム塩としては1.15MのLiCF3SO3を使用した。
アンワインドドライブ(unwind drive)及び2つの蒸着領域を具備した真空ウェブコーティングシステムに9種の試料のアノード基板をローディングした。2mmの厚さを有するガラスプレート(3x3cm2)を初期基板として使用した。純粋な金属ペレットであるMg(99.99%)、Ni(99.99%)、Cu(99.99%)、Zn(99.99%)、Al(99.99%)、及びLi(99.99%)フォイルを蒸着金属のソースとして使用した。前記チャンバに3x10−6Torrの真空を加えた。ステンレススティールまたはモリブデン(Niに対して)から熱蒸着ソースを先に加熱して適切な基板上に全ての金属を蒸着した。まず、前記ガラス表面に厚さ2500Å以下のCu膜を蒸着し、次いでLi(2ないし20μmの厚さ)を蒸着した後、必要時に他の金属を蒸着した。蒸着工程時にフィルムの厚さは石英マイクロバランス水晶膜厚モニタを使用して調節し、各金属の蒸着後に重量で調節した。前記金属に対する蒸着速度は次の通りであった:Mg 15−65Å/s、Ni 6−10Å/s、Cu 8−15Å/s、Zn 10−25Å/s、Al 10−15Å/s、Li 30−40Å/s(フィルム厚さが2ないし5μmである場合)、及び100Å/s以上(フィルム厚さが5μm以上である場合)。各金属の蒸着完了後及び次の金属のローディング前に前記チャンバを25℃に冷却し、脱真空した後、空気で満たしてさらに真空を形成した。
3 M1膜
4 M2膜
5 上部ポリマー層
Claims (5)
- (a)蒸着システムにアノード用基板をローディングする段階と、
(b)蒸着ボートを使用して熱蒸着ソースを加熱して集電体を蒸着する段階と、
(c)前記集電体上にリチウム金属を蒸着する段階と、
(d)前記リチウム金属上に第1金属を蒸着する段階と、
(e)前記第1金属上に第2金属を蒸着する段階と、
(f)所定時間放置する段階と、を有し、
前記(e)段階直後にポリマー保護膜及び無機保護膜を形成する段階をさらに含み、
前記第1金属はリチウムに対して非活性であり、かつ前記第2金属はリチウムに対して活性であることを特徴とするリチウムアノードの製造方法。 - 前記所定時間が5分ないし24時間であることを特徴とする請求項1に記載のリチウムアノードの製造方法。
- 前記第1金属は、Cu、Ni、Fe、Ti、Cu−Ni、またはFe−Niであることを特徴とする請求項1に記載のリチウムアノードの製造方法。
- 前記第2金属は、Mg、Bi、Pb、Cd、Si、In、Ga、Ge、Zn、Al、Sn、Sb及びAgよりなる群から選択された一つ以上の金属であることを特徴とする請求項1に記載のリチウムアノードの製造方法。
- 請求項1〜4のいずれか1項に記載のリチウムアノードの製造方法により得られるリチウムアノード。
Applications Claiming Priority (2)
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KR1020030086503A KR100953543B1 (ko) | 2003-12-01 | 2003-12-01 | 리튬 애노드, 그의 제조방법 및 이를 채용한 리튬 전지 |
KR2003-086503 | 2003-12-01 |
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JP2005174924A JP2005174924A (ja) | 2005-06-30 |
JP5100962B2 true JP5100962B2 (ja) | 2012-12-19 |
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JP2004338025A Expired - Fee Related JP5100962B2 (ja) | 2003-12-01 | 2004-11-22 | リチウムアノード製造方法及びその製造方法により得られるリチウムアノード |
Country Status (4)
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US (1) | US7534530B2 (ja) |
JP (1) | JP5100962B2 (ja) |
KR (1) | KR100953543B1 (ja) |
CN (1) | CN100459235C (ja) |
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WO2008070059A2 (en) | 2006-12-04 | 2008-06-12 | Sion Power Corporation | Separation of electrolytes in lithium batteries |
JP2008166171A (ja) * | 2006-12-28 | 2008-07-17 | Sumitomo Electric Ind Ltd | リチウム二次電池用電極およびその製造方法 |
US8703333B2 (en) * | 2009-02-27 | 2014-04-22 | Toyota Motor Engineering & Manufacturing North America, Inc. | Electrode compositions and processes |
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JP5403544B2 (ja) * | 2009-09-07 | 2014-01-29 | セイコーインスツル株式会社 | 非水電解質二次電池用の電解液及びこれを用いた非水電解質二次電池 |
KR101108185B1 (ko) * | 2009-12-21 | 2012-02-06 | 삼성에스디아이 주식회사 | 리튬 이온 이차 전지용 음극 및 이를 구비한 리튬 이온 이차 전지 |
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WO2014168019A1 (ja) * | 2013-04-12 | 2014-10-16 | 株式会社村田製作所 | リチウムイオン二次電池 |
JP5682689B1 (ja) * | 2013-09-25 | 2015-03-11 | トヨタ自動車株式会社 | 全固体電池 |
CN105518922B (zh) * | 2013-09-25 | 2018-03-02 | 丰田自动车株式会社 | 全固体电池 |
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KR102160701B1 (ko) | 2016-07-18 | 2020-09-28 | 주식회사 엘지화학 | 천공 구조의 집전체를 포함하는 전극, 이를 포함하는 리튬 이차전지 |
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KR100953543B1 (ko) | 2010-04-21 |
US7534530B2 (en) | 2009-05-19 |
US20050118507A1 (en) | 2005-06-02 |
KR20050052920A (ko) | 2005-06-07 |
CN1624954A (zh) | 2005-06-08 |
CN100459235C (zh) | 2009-02-04 |
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