JP2010525549A - ケイ素を炭素材料へ蒸着しリチウムイオン電池用アノードを形成する方法 - Google Patents
ケイ素を炭素材料へ蒸着しリチウムイオン電池用アノードを形成する方法 Download PDFInfo
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Abstract
【選択図】図1A
Description
ムセルに置かれる。電解液(1M LiPF6塩を含有するエチレンカーボネート:ジメチルカーボネート50:50)に浸された多孔質ポリプロピレン−ポリエチレンセパレーターは、C−Si電極を分離してLi電極を形成し且つリチウムイオン伝導のための電解液として作用するために用いられる。
Claims (22)
- ケイ素を炭素材料へ蒸着してリチウムイオン電池に使用するための合金を形成する方法であって、
蒸気成長炭素繊維、蒸気成長カーボンナノファイバー、PAN又はピッチ誘導炭素繊維、グラファイトフレーク、グラフェン小板、カーボンナノチューブから選択される炭素材料を用意すること;
炭素材料を約100〜1200℃の温度で加熱すること;
ケイ素含有前駆体ガスを炭素材料と接触させて、ガスが分解し且つ被覆を炭素材料の少なくとも表面に形成するのに十分な時間流すこと
を含む方法。 - 前駆体ガスは、シラン、シランと水素のブレンド、又はシランと不活性ガスのブレンドを含む、請求項1に記載の方法。
- 炭素材料が蒸気成長カーボンナノファイバーを含む、請求項1に記載の方法。
- 蒸気成長カーボンナノファイバーが700℃より上の温度で加熱処理されている、請求項3に記載の方法。
- ケイ素被覆が結晶質ケイ素、非晶質ケイ素又はケイ素化合物を含む、請求項1に記載の方法。
- 炭素材料が、金属炭化物、炭化ケイ素及び酸化ケイ素から選択される炭化物材料をさらに含む、請求項1に記載の方法。
- 炭素材料が、単層カーボンナノチューブ、多層カーボンナノチューブ、剥脱グラファイトフレーク、グラファイト小板、グラフェン粒子、カーボンブラック、及びメソカーボンマイクロビーズから選択される炭素又はグラファイト添加剤をさらに含む、請求項1に記載の方法。
- 炭素材料が、直径約500nm〜10マイクロメートルの巨視的蒸気成長カーボンナノファイバーを含む導電性添加剤をさらに含む、請求項1に記載の方法。
- 炭素材料の長さが約1〜約500マイクロメートルである、請求項1に記載の方法。
- 炭素材料が低密度複合材又はプレフォームの形である、請求項1に記載の方法。
- ケイ素が、炭素材料上に約0.001〜100ミクロンの厚さで被覆される、請求項1に記載の方法。
- ケイ素が、炭素材料上に約2〜100nmの厚さで被覆される、請求項1に記載の方法。
- ケイ素で被覆された炭素材料が傾斜的界面を有する、請求項1に記載の方法。
- 結合剤をケイ素で被覆された炭素材料へ加えることによってアノードを形成することをさらに含む、請求項1に記載の方法。
- 結合剤が、ポリビニリデンジフルオリド、EPDM及びポリスチレンから選択される、請求項14に記載の方法。
- リチウムイオン電池に用いるための請求項14に記載の方法によって形成されたアノード。
- 約0.01〜約0.5オーム/cmの導電率を有する、請求項16に記載のアノード。
- 総容量の5〜40%の非可逆的容量を有する、請求項16に記載のアノード。
- 少なくとも350mAH/gの可逆的容量を有する、請求項16に記載のアノード。
- 少なくとも1000mAH/gの可逆的容量を有する、請求項16に記載のアノード。
- 少なくとも50w/m−K乃至1000w/m−Kまでの熱伝導率を有する、請求項16に記載のアノード。
- 蒸気成長炭素繊維、蒸気成長カーボンナノファイバー、PAN又はピッチ誘導炭素繊維、グラファイトフレーク、グラフェン小板、及びカーボンナノチューブから選択される炭素材料を用意すること;
炭素材料を約100〜1200℃の温度で加熱すること;
ケイ素含有前駆体ガスを炭素材料と接触させて、前記ガスが分解し且つ被覆を炭素材料の少なくとも表面に形成するのに十分な時間流すこと;そして
リチウムをケイ素で被覆された炭素材料上で蒸発させること
によって形成されるリチウム吸蔵炭素−ケイ素合金。
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US91332107P | 2007-04-23 | 2007-04-23 | |
| US12/107,254 US8828481B2 (en) | 2007-04-23 | 2008-04-22 | Method of depositing silicon on carbon materials and forming an anode for use in lithium ion batteries |
| PCT/US2008/061197 WO2009009206A2 (en) | 2007-04-23 | 2008-04-23 | Method of depositing silicon on carbon materials and forming an anode for use in lithium ion batteries |
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| Publication Number | Publication Date |
|---|---|
| JP2010525549A true JP2010525549A (ja) | 2010-07-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2010506437A Pending JP2010525549A (ja) | 2007-04-23 | 2008-04-23 | ケイ素を炭素材料へ蒸着しリチウムイオン電池用アノードを形成する方法 |
Country Status (4)
| Country | Link |
|---|---|
| US (2) | US8828481B2 (ja) |
| EP (1) | EP2162564A2 (ja) |
| JP (1) | JP2010525549A (ja) |
| WO (1) | WO2009009206A2 (ja) |
Cited By (51)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009035472A (ja) * | 2007-07-11 | 2009-02-19 | Nissei Plastics Ind Co | カーボンナノ複合材料及びその製造方法 |
| JP2011503804A (ja) * | 2007-11-05 | 2011-01-27 | ナノテク インスツルメンツ インク | ナノグラフェンプレートレットを主体とするリチウムイオン電池用複合負極化合物 |
| JP2011514631A (ja) * | 2008-02-25 | 2011-05-06 | アンソニー ロジェスキー ロナルド | 高容量電極 |
| JP2012119079A (ja) * | 2010-11-29 | 2012-06-21 | Hiramatsu Sangyo Kk | 負極活物質、負極製造方法、負極、及び二次電池 |
| JP2012528463A (ja) * | 2009-05-27 | 2012-11-12 | アンプリウス、インコーポレイテッド | 電池用電極に利用されるコアシェル型の高容量のナノワイヤ |
| JP2013506264A (ja) * | 2009-09-29 | 2013-02-21 | ジョージア テック リサーチ コーポレイション | 電極、リチウムイオン電池ならびにこれらを作製する方法および使用する方法 |
| JP2013229347A (ja) * | 2007-11-12 | 2013-11-07 | Shin Etsu Chem Co Ltd | 非水電解質二次電池負極材の活物質用多結晶珪素粒子の製造方法 |
| JP2013544019A (ja) * | 2010-11-26 | 2013-12-09 | ローベルト ボツシユ ゲゼルシヤフト ミツト ベシユレンクテル ハフツング | ナノ繊維を含む、リチウムイオン電池用のアノード材料 |
| CN103746119A (zh) * | 2014-01-05 | 2014-04-23 | 孟红琳 | 一种石墨烯包覆的炭微球锂离子电池负极材料的制备方法 |
| JP2014084272A (ja) * | 2012-10-26 | 2014-05-12 | Applied Materials Inc | 銅基板上のカーボンナノチューブ成長 |
| JP2014114205A (ja) * | 2012-11-14 | 2014-06-26 | Toshiba Corp | 炭素材料とその製造方法およびそれを用いた電気化学セルと減酸素装置と冷蔵庫 |
| JP2014177389A (ja) * | 2013-03-15 | 2014-09-25 | National Institute For Materials Science | リチウム電池用電極活物質 |
| JP2014191936A (ja) * | 2013-03-26 | 2014-10-06 | Nec Corp | 非水電解質二次電池用負極およびこれを用いた非水電解質二次電池 |
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Also Published As
| Publication number | Publication date |
|---|---|
| US20080261116A1 (en) | 2008-10-23 |
| WO2009009206A3 (en) | 2009-04-30 |
| WO2009009206A2 (en) | 2009-01-15 |
| US20140349186A1 (en) | 2014-11-27 |
| EP2162564A2 (en) | 2010-03-17 |
| US8828481B2 (en) | 2014-09-09 |
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